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Komatsu PC350LC-8, Operation & Maintenance Manual

The Komatsu PC350LC-8 is a powerful excavator designed for heavy-duty construction projects. Ensure optimal performance and longevity with the Operation & Maintenance Manual. Download the manual for free from manualshive.com to access essential information on operation and maintenance of this top-of-the-line machine.

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ATTACHMENTS AND OPTIONS

MACHINE READY FOR ATTACHMENT

6-13

Hydraulic Circuit Connection

6

When connecting the attachment, connect the hydraulic circuit
as follows.

1.

Remove blind plug (1) at the end of the stop valve piping.

(Two spots on the left and right)

Be careful not to lose or damage any part that has been
removed.

2.

Connect attachment piping (2) provided by the attachment
maker to the part from which the plug was removed Step 1.

For the mouthpiece size and accumulator add-on, the
action to take differs according to the attachment manufac-
turer, so please consult your Komatsu distributor.

Summary of Contents for PC350LC-8

Page 1: ...Unsafe use of this machine may cause serious injury or death Operators and maintenance personnel must read this manual before operating or maintaining this machine This manual should be kept inside t...

Page 2: ......

Page 3: ...FOREWORD 11...

Page 4: ...ghly and understand its contents fully Read the safety messages and safety labels given in this manual carefully so that they should be under stood fully Keep this manual at the storage location for t...

Page 5: ...dentally touch the control levers when they are not locked this may cause a serious injury or death Other signal words In addition to the above the following signal words are used to indicate precauti...

Page 6: ...and the method of avoiding the hazardous condition is shown inside a circle Komatsu cannot predict every circumstance that might involve a potential hazard in operation and maintenance Therefore the...

Page 7: ...EC Vibration levels 1 When used for its intended purpose levels of vibration for the earth moving machine transmitted from the opera tor s seat are lower than or equal to the tested vibrations for the...

Page 8: ...e weight and size of the operator q Wear seat belt q Inspect and maintain the seat suspension and adjustment mechanisms 5 Steer brake accelerate shift gears for wheeled machines and move the attachmen...

Page 9: ...k q Demolition work See the section RECOMMENDED APPLICATIONS 3 175 for further details DIRECTIONS OF MACHINE 1 In this manual the terms front rear left and right refer to the travel direction as seen...

Page 10: ...hours as indicated on the service meter Make sure that you fully understand the content of this manual and pay careful attention to the following points when breaking in the machine q Run the engine a...

Page 11: ...u distributor of the following items PRODUCT IDENTIFICATION NUMBER PIN MACHINE SERIAL NO PLATE 1 On the bottom right of the operator s cab The design of the nameplate differs according to the territor...

Page 12: ...PRODUCT INFORMATION FOREWORD 1 10 SERVICE METER LOCATION 1 On top of the machine monitor...

Page 13: ...oad Birtley Chester Le Street County Durham DH32QX United Kingdom Distributor name Address Service Personnel Phone Fax 205 00 K1291 MODEL SERIAL No MANUFACT YEAR MASS ENGINE POWER Product Identificati...

Page 14: ...IDENTIFICATION NUMBER PIN MACHINE SERIAL NO PLATE 1 9 EPA REGULATIONS ENGINE NUMBER PLATE 1 9 SERVICE METER LOCATION 1 10 TABLE TO ENTER SERIAL NO AND DISTRIBUTOR 1 11 MACHINE SERIAL PLATE 1 11 SAFETY...

Page 15: ...LOCK 3 93 DRINK BOX 3 95 MAGAZINE BOX 3 95 ASHTRAY 3 95 AIR CONDITIONER CONTROLS 3 96 Air Conditioner Control Panel 3 96 Method of Operation 3 101 Use Air Conditioner with Care 3 108 Inspection and ma...

Page 16: ...chine Backward 3 156 Stopping Machine 3 157 STEERING THE MACHINE 3 158 Steering 3 158 SWINGING 3 160 WORK EQUIPMENT CONTROLS AND OPERATIONS 3 161 WORKING MODE 3 163 PROHIBITED OPERATIONS 3 165 GENERAL...

Page 17: ...03 LIGHTWEIGHT TOWING HOLE 3 204 SEVERE JOB CONDITION 3 204 DISCHARGED BATTERY 3 205 Battery Removal and Installation 3 205 Battery Charges 3 206 Starting Engine with Booster Cables 3 207 OTHER TROUBL...

Page 18: ...BUCKET TEETH HORIZONTAL PIN TYPE 4 38 REPLACE BUCKET SIDE CUTTER SHROUD 4 39 ADJUST BUCKET CLEARANCE 4 40 CHECK WINDOW WASHER FLUID LEVEL ADD FLUID 4 41 CHECK AND MAINTENANCE AIR CONDITIONER 4 42 WASH...

Page 19: ...UMULATOR FOR CONTROL CIRCUIT 4 77 CHECK ALTERNATOR 4 81 CHECK ENGINE VALVE CLEARANCE ADJUST 4 81 CHECK VIBRATION DAMPER 4 81 EVERY 4000 HOURS MAINTENANCE 4 82 CHECK WATER PUMP 4 82 CHECK STARTING MOTO...

Page 20: ...1 e g Crusher 6 23 Working Mode Selection 6 24 Operation When Using Attachment 2 e g clamshell rotation crusher rotation 6 25 LONG TERM STORAGE 6 25 SPECIFICATIONS 6 25 ATTACHMENT GUIDE 6 26 ATTACHME...

Page 21: ...50LCD 8 AND PC350NLCD 8 7 2 GENERAL VIEW OF MACHINE 7 2 CAUTION ITEMS 7 2 POSITION FOR ATTACHING SAFETY LABELS 7 4 POSITION FOR ATTACHING SAFETY LABELS 7 4 CONTROL LEVERS AND SWITCHES 7 6 SAFETY LOCK...

Page 22: ...LVE PPC CIRCUITS OF MID LINK AND ARM CYLINDER 7 45 POSTURE WHEN LEAVING MACHINE 7 46 TRANSPORTATION 7 47 TRANSPORTATION high reach demolition equipment fitted 7 47 PROCEDURE FOR LOADING ON TO TRAILER...

Page 23: ...ING Please read and make sure that you fully understand the precautions described in this manual and the safety labels on the machine When operating or servicing the machine always follow these precau...

Page 24: ...S IN THE EVENT OF DAMAGE TO SAFETY STRUCTURES 2 18 2ATTACHMENT INSTALLATION 2 19 2ATTACHMENT COMBINATIONS 2 19 2CAB WINDOW GLASSES 2 19 2UNAUTHORIZED MODIFICATIONS 2 19 2SAFETY AT JOBSITE 2 19 2WORKIN...

Page 25: ...S RUNNING 2 37 2PROPER TOOLS 2 38 2ACCUMULATOR GAS SPRING 2 38 2PERSONNEL 2 38 2ATTACHMENTS 2 39 2WORK UNDER THE MACHINE 2 39 2NOISE 2 39 2WHEN USING HAMMER 2 39 2WELDING WORKS 2 39 2REMOVING BATTERY...

Page 26: ...d always keep them clean When cleaning them do not use organic solvents or gasoline These may cause the labels to peel off q There are also other labels in addition to the warning signs and safety lab...

Page 27: ...e q Improper operation and maintenance can cause serious injury or death q Read the manual and labels before operation and mainte nance Follow instructions and warnings in manual and in labels on mach...

Page 28: ...aving operator s seat q c WARNING No passengers No passengers allowed to ride on machine while it is mov ing q d WARNING DANGER OF FALLING OBJECTS Do not operate where a danger of falling objects exis...

Page 29: ...function diagram WARNING In order to prevent an accident resulting in injury or death caused by error operation confirm the machine motion and indicated operating pattern when operating machines Pay...

Page 30: ...r or hydraulic tank will cause personal injury and or burns q Never remove the radiator cap or hydraulic tank oil filler when cooling water or hydraulic oil is at high temperature 5 Caution for handli...

Page 31: ...n electric hazard from handling the cable q Read manual for safe and proper handling 8 Stop rotating parts when inspection and maintenance 09667 A0481 q Sign indicates a hazard of rotating parts such...

Page 32: ...n q Do not go close to the edge of the machine by mistake 11 Caution against falling 09805 C0481 q Sign indicates a hazard of falling q Do not step here 12 Prohibited to enter within swing range 20E 0...

Page 33: ...y fall ing attachment q Read the manual for safe operation 14 206 00 K1010 q Pump Control override switch and swing lock override switch q Read the operation manual before operation 15 Keeping out of...

Page 34: ...ious bodily injury or fire 17 Caution when swinging or traveling in reverse WARNING When swinging or backing up excavator press button to change display mode on monitor so you can see rear and side of...

Page 35: ...until the problem has been corrected WORKING WEAR AND PERSONAL PROTECTIVE ITEMS q Do not wear loose clothing and accessories There is a hazard that they may catch on control levers or other protrudin...

Page 36: ...accident q Do not leave parts or tools lying around the operator s compartment q Do not stick suction pads to the window glass Suction pads act as a lens and may cause fire q Do not use cellular tele...

Page 37: ...n or off the machine check the handrails and steps including the track shoe If there is any oil grease or mud on the handrails or steps including the track shoe wipe it off immediately Always keep the...

Page 38: ...ant wait for the water to cool to a temperature where it is possible to touch the radi ator cap by hand before starting the operation Even when the coolant has cooled down loosen the cap slowly to rel...

Page 39: ...or tubes that contain flammable liquids q Fire caused by accumulation of flammable material Remove any dry leaves chips pieces of paper dust or any other flammable materials accumulated or affixed ar...

Page 40: ...e not in hazard from falling or flying objects q The above recommendations assume that the conditions are for standard operations but it may be necessary to add additional guards according to the spec...

Page 41: ...window UNAUTHORIZED MODIFICATIONS If this machine is modified without permission from Komatsu there is danger that problems may occur with safety and that this may lead to serious personal injury Mod...

Page 42: ...the local power company of the work to be performed and ask them to take the necessary action q Even going close to high voltage cables can cause electric shock which may cause serious burns or even d...

Page 43: ...ibility such as in fog snow rain or sand storms q Check the mirrors on the machine before starting operations every day Clean off any dirt and adjust the view to ensure good visibility q In areas wher...

Page 44: ...may sound These effects do not signify a malfunction and the machine will return to normal as soon as the source of interfer ence is removed ASBESTOS DUST HAZARD PREVENTION Asbestos dust in the air c...

Page 45: ...electric wiring q Adjust the operator s seat to a position where it is easy to carry out operations and check that there is no dam age or wear to the seat belt or mounting clamps q Check the operatio...

Page 46: ...ughly If the machine is not thoroughly warmed up before the control levers or control pedals are operated the reaction of the machine will be slow or the machine may move in a way not expected by the...

Page 47: ...tor to ride on the machine q Check that the travel alarm works properly q Always lock the door and windows of the operator s com partment in position open or closed On jobsites where there is a hazard...

Page 48: ...und and travel at low speed Never travel over obstacles which make the machine tilt strongly to one side q When traveling or carrying out operations always keep a safe distance from people structures...

Page 49: ...es with low speed Even with slight slopes there is a hazard that the machine may slip OPERATIONS ON SLOPES q When working on slopes there is a hazard that the machine may lose its balance and turn ove...

Page 50: ...e unstable and tip over q When working on or from the top of buildings or other structures check the strength and the structure before starting operations There is a hazard of the building col lapsing...

Page 51: ...The load may spill or the bucket may hit the dump truck and cause serious injury or prop erty damage OPERATIONS ON SNOW q Snow covered or frozen surfaces are slippery so be extremely careful when tra...

Page 52: ...key to lock all the equipment in order to prevent any unauthorized person from moving the machine Always remove the key take it with you and leave it in the specified place q If it is necessary to par...

Page 53: ...e any lever except for the travel lever q Never correct your steering on the ramps If necessary drive off the ramps correct the direction then enter the ramps again q The center of gravity of the mach...

Page 54: ...ly with large amount of water and seek medical attention q Before working with batteries turn the starting switch to the OFF position As there is a hazard that sparks will be generated always do as fo...

Page 55: ...b lem machine There is a hazard that the machine will move when the power is connected q Be sure to connect the positive cable first when install ing the booster cables Disconnect the negative cable g...

Page 56: ...used for towing has ample strength for the weight of the machine being towed q Always wear leather gloves when handling wire rope q Never tow a machine on a slope q Never use a wire rope which has cu...

Page 57: ...e the area q It is dangerous if the raised load hits any person or structure When swinging or operating the work equip ment check carefully that the surrounding area is safe q Do not swing or operate...

Page 58: ...EEP WORK PLACE CLEAN AND TIDY q Do not leave hammers or other tools lying around in the work place Wipe up all grease oil or other sub stances that will cause you to slip Always keep the work place cl...

Page 59: ...x one minute after turning off the engine starting switch key and press the horn switch If the horn does not sound it is not activated q Put blocks under the track to prevent the machine from moving T...

Page 60: ...mulator and gas springs is charged with high pres sure nitrogen gas When handling the accumulator careless procedure may cause an explosion which could lead to serious injury or property damage For th...

Page 61: ...nt or the machine NOISE When carrying out maintenance of the engine and you are exposed to noise for long periods of time wear ear cov ers or ear plugs while working If the noise from the machine is t...

Page 62: ...ever attempt to disassemble the recoils spring assembly It contains a spring under high pressure which serves as a shock absorber for the idler If it is disassembled by mistake the spring will fly out...

Page 63: ...high pressure hoses it may cause fire or defective operation which may lead to serious injury If any loose bolts are found stop work and tighten to the specified torque If any damaged hoses are found...

Page 64: ...by flying particles q When using compressed air to clean elements or the radiator always wear safety glasses dust mask gloves and other protective equipment PERIODIC REPLACEMENT OF SAFETY CRITICAL PA...

Page 65: ...OPERATION 13 WARNING Please read and make sure that you understand the SAFETY section before reading this section...

Page 66: ...NE VIEW ILLUSTRATIONS OPERATION 3 2 MACHINE VIEW ILLUSTRATIONS 3 OVERALL MACHINE VIEW 3 1 Bucket 6 Boom cylinder 2 Bucket cylinder 7 Sprocket 3 Arm 8 Track frame 4 Arm cylinder 9 Track shoe 5 Boom 10...

Page 67: ...er wiper switch 6 Travel levers 23 Roof wiper switch if equipped 7 Horn switch 24 Quick coupler switch 8 Machine monitor 25 Additional lamp switch 9 Cigarette Lighter 26 2nd attachment proportional co...

Page 68: ...gauge 20 Radiator coolant level monitor 6 Hydraulic oil temperature gauge 21 Air conditioner monitor 7 Service meter Clock 22 Wiper monitor 8 Hydraulic oil temperature monitor 23 Swing lock monitor 9...

Page 69: ...plays MONITORING SYSTEM 3 AA Screen for standard BB Screen with all lamps lighted up CC Maintenance time warning screen REMARK One of the features of liquid crystal display panels is that there may be...

Page 70: ...starting screen DD is displayed for 2 seconds the screen switches to the working mode travel mode display screen HH q After the working mode travel mode display screen HH is displayed for 2 seconds th...

Page 71: ...the temperature and the battery condition If this happens the display on the machine monitor may momentarily go out but this does not indicate any abnormality Stopping Engine When Situation is Normal...

Page 72: ...CC warning screen FF or error screen EE q After displaying the check before starting screen DD for 2 seconds the screen changes to the maintenance interval warning screen CC q After displaying the ma...

Page 73: ...ity Occurs During Operation q If any abnormality occurs during operation the standard screen BB changes to warning screen FF 1 or the error screen EE q After displaying warning screen FF 1 for 2 secon...

Page 74: ...f monitor Color when monitor lights up When normal When abnormal At low temperature 1 Engine coolant temperature monitor Blue Red White 2 Hydraulic oil temperature monitor Blue Red White 3 Fuel level...

Page 75: ...or 1 warns operator that the engine coolant temperature has risen If the engine coolant temperature becomes abnormally high the monitor shows abnormal display C The overheat preven tion system is auto...

Page 76: ...it at low idling until the monitor changes to normal display B Display A at low temperatures Monitor background D is white Display B at correct temperatures Monitor background D is blue Display C whe...

Page 77: ...abnormal location lights up red Engine Coolant Temperature Monitor If this monitor 1 shows low temperature display A carry out the warm up operation For details see Engine Warm Up 3 143 Monitor 1 will...

Page 78: ...uel tank is low When the remaining fuel level reaches approx 60 liters the monitor lamp lights up red so add fuel as soon as possible Charge Level Monitor This monitor 4 warns the operator that there...

Page 79: ...tor see Check for Water and Sediment in Water Sepa rator Drain Water 3 123 REMARK The water separator forms one unit with the fuel pre filter It is at the bottom of the fuel pre filter and can be remo...

Page 80: ...ems among the check before starting items that must be checked before starting the engine If there is any abnormality monitor for the location of abnormality will light up Radiator Coolant Level Monit...

Page 81: ...ains lighted after the maintenance time has already passed q Lighted yellow The maintenance time is due within 30 hours q Lighted red The maintenance time has already passed This monitor lights up whe...

Page 82: ...s actuated When the ambient temperature is low and the starting switch is set to the ON position the lamp lights up and when the preheating is completed it goes out The preheating time differs accordi...

Page 83: ...ng lock monitor is lighted up the brake remains applied Wiper Monitor Monitor 3 indicates operating status of the wiper The monitor display when wiper switch is operated as follows When ON lights up W...

Page 84: ...or switch Lo Low speed travel Mi Mid range speed travel Hi High speed travel q For details of the positions of the travel speed selector switch see CONTROLS AND GAUGES 3 3 One Touch Power Max Monitor...

Page 85: ...Idle Stop Guidance If the levers are not operated for more than five minutes and the engine is idling the idling stop message is displayed on the monitor When waiting for work or stopping work for a...

Page 86: ...E shows abnormality display Red range B position Engine speed changes to low idling engine coolant temperature monitor E shows abnor mality display alarm buzzer sounds at same time The overheat preve...

Page 87: ...20 C hydraulic oil temperature monitor E shows the low temperature display If this happens carry out the warm up operation For details see Hydraulic Equipment Warm Up 3 145 Display G at low temperatu...

Page 88: ...machine is not moving The service meter advances 1 for every hour that the machine is working regardless of the engine speed q When the standard screen is being displayed if function switch F4 is pre...

Page 89: ...nge range B the load is heavy q When the gauge enters the orange range there is no abnormality on the machine but to protect the environ ment reduce the engine output to a point where there is no adve...

Page 90: ...or double acting circuit attachment such as crusher attachment ready machines q When the monitor first appears it is automatically set to the mode in use when it was started the previous time q Press...

Page 91: ...king mode setting is B mode the confirmation message on the right is displayed and the buzzer sounds q When starting up and staying in B mode always press function switch F6 Yes If you press F5 No the...

Page 92: ...ode is automatically set as the working mode and the screen changes to Steps 3 and Steps 4 REMARK To return to the standard screen without changing the working mode press function switch F5 3 After se...

Page 93: ...e message in the illustration on the right is displayed When setting to the breaker mode always press function switch F6 q If function switch F5 is pressed the breaker mode is not set and the screen r...

Page 94: ...ent and travel levers are returned to the N position the engine speed will drop after 4 seconds from the operat ing speed to idling speed This makes it possible to reduce fuel consumption If any lever...

Page 95: ...up Low speed travel Mi lights up Medium speed travel Hi lights up Hi speed travel When the engine is started the speed is automatically set to Lo Each time that the switch is pressed the display chan...

Page 96: ...t changes ON INT stop OFF Wiper monitor INT lighted up Wiper operates intermittently Wiper monitor ON lighted up Wiper operates continuously Wiper monitor OFF Wiper stops REMARK Each time wiper switch...

Page 97: ...the wiper will be actuated continuously When switch 5 is released the wiper will continue to operate for 2 cycles then stop q If the wiper is moving intermittently and switch 5 is kept pressed contin...

Page 98: ...he func tions are displayed as follows F3 Camera screen selector switch if equipped F4 Service meter time display selector switch F5 Maintenance mode switch F6 User mode switch F1 and F2 are auxiliary...

Page 99: ...uidance icon B is pressed it will not function Press switch A immediately below the guidance icon dis play to operate the function The operation of the function switches if the initial screen is the s...

Page 100: ...F3 is pressed the image display screen is displayed q Press switch F1 to display all the screens for images from the No 1 camera q Press switch F2 to display all the screens for images from the No 2...

Page 101: ...me time on the monitor q On the No 1 camera image display screen if switch F4 is pressed No 1 camera image d and No 2 camera image e are displayed q Even if three cameras are installed only the images...

Page 102: ...ter the screen switches to the air conditioner control screen the screen automatically returns to the camera image screen For details of the operation of the air conditioner see AIR CONDITIONER CONTRO...

Page 103: ...sed the camera image display screen does not switch to another screen q It is possible to press the buzzer cancel switch to stop the alarm buzzer for the warning item where there is an abnor mality Ev...

Page 104: ...alarm display When the error monitor is flashing if no lever is operated for more than 10 seconds the screen automatically returns to the standard screen When the screen returns to the standard scree...

Page 105: ...ard screen it is possible to press switch F4 to switch the service meter and clock display at the top of the monitor display q When the time is being displayed press switch F4 to switch to the service...

Page 106: ...nce items b Default maintenance interval settings h c Time remaining until maintenance h a b Engine oil change 500 Engine oil filter change 500 Fuel main filter change 1000 Fuel pre filter change 500...

Page 107: ...esetting the remaining time for the selected item item highlighted in yellow REMARK When resetting the remaining time keep switch F6 pressed for at least 1 5 seconds If switch F6 is not kept pressed f...

Page 108: ...ncel the reset press switch F5 The screen returns to the maintenance list screen On the reset screen if no switch is operated for more than 30 seconds the screen automatically switches to the maintena...

Page 109: ...wing operations with switches F3 to F6 F3 Moves to next item 1 line down When on the last line it moves to the first line on the next page F4 Moves to previous item 1 line up When on the first line it...

Page 110: ...een adjustment d Clock adjustment e Language selection f Economy mode adjustment The operation for setting a to f is as follows Breaker Attachment 1 Setting q On machines ready for attachment it is po...

Page 111: ...3 47 Changing Breaker Mode Setting 1 On the standard screen press switch F6 2 Select Breaker Attachment Settings on the user menu then press switch F6 Screen for machine with 1 Attachment Line Screen...

Page 112: ...switches F3 to F6 F3 Moves to next item 1 line down F4 Moves to previous item 1 line up F5 Returns to user menu screen F6 Switches to setting screen for selected item 4 The screen switches to the Bre...

Page 113: ...lowing operations with switches F3 F6 F3 Moves to next item 1 line down F4 Moves to previous item 1 line up F5 Returns to previous screen F6 Switches to setting screen for selected item Changing break...

Page 114: ...setting follow the procedure given in Changing breaker flow setting 3 51 q The present oil flow set for B mode is marked with a B in front of the item name as shown in the illustration on the right q...

Page 115: ...h F6 2 On the Breaker Oil Flow Setting screen select one of the two set values for the oil flow then press switch F6 q The default values for the oil flow setting are both set to 230 liter min as show...

Page 116: ...previous screen F6 Switches to setting screen for selected item 3 On the Breaker Oil Flow Setting screen change the set oil flow q After using switches F3 or F4 to change to a suitable oil flow press...

Page 117: ...53 Changing Attachment Mode Setting 1 On the standard screen press switch F6 2 Select Breaker Attachment Settings on the user menu then press switch F6 Screen for machine with 1 Attachment Line Screen...

Page 118: ...item 1 line up F5 Returns to user menu screen F6 Switches to setting screen for selected item 4 The screen switches to the 2 Way Attachment Select menu q 2 Way Attachment Select In 2 Way Attachment Se...

Page 119: ...lowing operations with switches F3 F6 F3 Moves to next item 1 line down F4 Moves to previous item 1 line up F5 Returns to previous screen F6 Switches to setting screen for selected item Changing attac...

Page 120: ...mode is marked with ATT in front of the item name as shown in the illustra tion on the right q If No 2 Way Attachment is selected it becomes impos sible to select the attachment mode on the working mo...

Page 121: ...switch F6 2 On the 2 Way Attachment Select Oil Flow Setting screen select one of the two set values for the oil flow then press switch F6 q The default values for the oil flow setting are both set to...

Page 122: ...ious screen F6 Switches to setting screen for selected item 3 On the 2 Way Attachment Oil Flow Setting menu it is pos sible to change the oil flow setting q After using switches F3 or F4 to change to...

Page 123: ...TT mode to match the attachment installed Changing Attachment 2 Mode Setting 1 On the standard screen press switch F6 2 Select Attachment 2 settings on the user menu then press switch F6 3 The screen...

Page 124: ...ttachment setting selection a on the attachment setting menu screen then press switch F6 2 On the 2 Way Attachment Select Menu select one of the two set values for the oil flow then press switch F6 Q...

Page 125: ...itch F6 Q The default values for the oil flow setting are both set to 40 l min as shown in the illustration on the right The present oil flow set for ATT mode is marked with ATT in front of the item q...

Page 126: ...fter using switches F3 or F4 to change to a suitable oil flow press switch F6 to accept the change in the oil flow and return to the previous screen Q When switch F5 is pressed no change is made in th...

Page 127: ...e is no territory where it is possible to the use the message service In territories where it is not possible to use the message service the message display menu functions as follows 1 On the standard...

Page 128: ...ck light of the screen 1 On the standard screen press switch F6 2 Select screen adjustment on the user menu then press switch F6 The screen switches to the selection menu screen for screen adjustment...

Page 129: ...selection menu for screen adjustment is not displayed If screen adjustment is selected from the user menu the adjustment screen in Step 4 is displayed 4 Use switches F2 to F6 to adjust the brightness...

Page 130: ...o carry out the following operations with switches F2 to F6 F2 Resets all adjusted values to default value F3 Indicator of selected item moves 1 segment to left F4 Indicator of selected item moves 1 s...

Page 131: ...CONTROLS AND GAUGES 3 67 Clock Adjustment On this clock adjustment menu it is possible to change the set ting of the clock displayed on the pilot monitor of the standard display 1 On the standard scre...

Page 132: ...68 2 Select Clock Adjustment on the user menu then press switch F6 The screen switches to the time adjustment selection menu screen q The following three items can be changed a Clock setting b 12 24...

Page 133: ...If Time a is not highlighted in yellow press switch F6 to highlight Time a in yellow When this is done hour dis play b changes to orange Adjust hour display b with the switches as follows If it is not...

Page 134: ...d goes to setting for 12 24 hour dis play mode q 12h 24h Mode Choose either a 12 hour display am pm or a 24 hour dis play b 24 hour display c 12 hour display am pm 1 If 12h 24h Mode a is not highlight...

Page 135: ...lighted in green 2 Change the daylight saving time with the switches as fol lows F3 Moves 1 item to left F4 Moves 1 item to right F5 Cancels change and returns to user menu F6 Accepts change and goes...

Page 136: ...used on the monitor display q The languages that can be selected are as follows Japanese English Chinese French Spanish Portuguese Italian German Russian Turkish Indonesian Thai 1 On the standard scre...

Page 137: ...screen it is possible to carry out the following operations with switches F3 to F6 F3 Moves to item below F4 Moves to item above F5 Cancels change and returns to user menu screen F6 Accepts change and...

Page 138: ...t E1 Economy Adjustment 1 E2 Economy Adjustment 2 E3 Economy Adjustment 3 q The higher the selection is made from E0 to E3 the better the fuel consumption becomes but the produc tion is reduced accord...

Page 139: ...14 Emergency pump drive switch 4 Swing lock switch 15 Swing parking brake release switch 5 Machine push up switch 16 Quick coupler switch 6 Lower wiper 17 Quick coupler switch 7 Heated seat 18 1st at...

Page 140: ...p the key at this position during cranking Immediately after starting the engine release the key It will automatically return to the ON position B Fuel Control Dial Dial 2 adjusts the engine speed and...

Page 141: ...ne Push up Switch This switch 5 is used to switch the safety valve set pressure at the head end of the boom cylinder to two levels a Low pressure setting The boom thrust force is weak so the swaying o...

Page 142: ...the rear end of the switch pressed and held down The wash wipe is on c OFF The wiper washer system is off 1 Nozzle 2 Ceiling window 3 Ceiling wiper Revolving Warning Lamp Switch If equipped Use this s...

Page 143: ...use it as the power source for 12V equipment Room Lamp Switch NOTICE It is possible to turn on the interior cab room lamp even when starting switch is in the OFF position do not forget to turn it off...

Page 144: ...to perform swing operations for a short even when there is a problem in the swing parking brake electric system DO NOT use this switch except in emergencies Repair the problem as soon as possible Thi...

Page 145: ...fer to MACHINE READY FOR ATTACHMENT PAGE 6 7 for warnings and explanation of operation 2nd Attachment Proportional Control Switch This switch 19 is a roller proportional control switch used to operate...

Page 146: ...not to touch the work equipment control lever This lever 1 is a device to lock the work equipment swing travel and attachment if equipped control levers L LOCK position Even when levers or attachment...

Page 147: ...avel forward when operated in reverse and in reverse when operated forward the left and right directions will also be reversed q When operating the travel levers check if the track frame is facing the...

Page 148: ...operation a Arm OUT b Arm IN Swing operation c Swing to right d Swing to left N Neutral The upper structure and arm are held in position and do not move Right work equipment control lever 4 is used t...

Page 149: ...s is touched by mistake this may lead to a serious accident Opening 1 Set the lock lever 1 securely to the LOCK position L 2 Push up lock A in the front center of the roof window and check that the lo...

Page 150: ...round stop the engine then carry out the operation q When opening the front window hold the grip securely with both hands pull up and do not let go until the automatic lock catch is locked q When clos...

Page 151: ...LED CONTROLS AND GAUGES 3 87 4 Hold 2 grips A on the left and right top sides of the front window and pull the 2 levers B to release the locks at the top of the front window The top of the front windo...

Page 152: ...lock catch E at the rear of the cab securely to lock the window 6 Check that lever B is securely at the LOCK position q The lock is engaged if the arrow on lock case F matches the position of the arr...

Page 153: ...level ground lower the work equipment completely to the ground then stop the engine 2 Set the lock lever 1 securely to the LOCK position L 3 Grip left and right handles A and pull down lever B to rel...

Page 154: ...left and right lock catches G and engage the lock 6 Check that lever B is securely at the LOCK position q The lock is engaged if the arrow on lock case F matches the position of the arrow on lever B...

Page 155: ...e difficult to remove the window In addition when stowing the sand and dust stuck to the glass will be carried inside the cab To prevent this clean area A before removing 2 After removing the lower wi...

Page 156: ...to escape To escape from the operator s cab use hammer A to break the glass and escape through the window DOOR LOCK 3 WARNING q Before the releasing the door lock always stop the machine on flat grou...

Page 157: ...ill go to the shoulder A If the key is turned before it is inserted all the way it may break Opening and Closing Caps with Lock Opening the Cap 1 Insert the key into the key slot 2 Turn the key clockw...

Page 158: ...k Opening the Cover Locked Cover 1 Insert the key into the key slot 2 Turn the key counterclockwise and open the cover by pull ing the cover grip A Open B Lock Locking the Cover 1 Close the cover and...

Page 159: ...air conditioner MAGAZINE BOX 3 The cup holder is provided separately at the front of the magazine box Located on left side of the operator s seat Keep the Operation and Maintenance Manual in this box...

Page 160: ...stop the fan and air conditioner REMARK Even if this switch 1 is pressed the monitor screen does not switch to the air conditioner adjustment screen 1 OFF switch 6 FRESH RECIRC selector switch 2 Fan...

Page 161: ...e Control Switch Switch 3 is used to control temperature inside the cab The temperature can be set between 18 C and 32 C q Press the E switch to raise the set temperature press the R switch to lower t...

Page 162: ...Rear vent 4 places B1 Face vent 1 place C Foot vent 1 place D Front window glass vent 2 place B2 Front window glass vent 1 place Note 1 Air blows from vents marked O Liquid crystal display Vent mode V...

Page 163: ...gh but this is not a problem FRESH RECIRC Selector Switch Switch 6 is used to switch the air source between recircula tion of the air inside the cab and intake of fresh air from the out side q During...

Page 164: ...ir conditioner is switched ON and starts to work Press the switch again to stop the air conditioner q Air conditioner cannot be operated while the fan is off Sunlight Sensor This sensor 9 automaticall...

Page 165: ...b are also displayed 2 Use temperature set switch 3 to set to the desired tem perature The air flow combination of vents and selection of fresh or recirculated air is automatically selected accord ing...

Page 166: ...pping Automatic Operation Press OFF switch 1 Operation stops Manual Operation 1 Press fan switch 2 and adjust the air flow When doing this check that temperature setting a and air flow b are displayed...

Page 167: ...de the cab 4 Press vent selector switch 4 and select the desired vents When this is done the display for vent c of the display monitor changes according to the selection 5 Press RECIRC FRESH selector...

Page 168: ...To operate with cold air blowing to the face and warm air blow ing to the feet set as follows 1 Press fan switch 2 and adjust the air flow When doing this check that temperature setting a and air flo...

Page 169: ...OPERATION DETAILED CONTROLS AND GAUGES 3 105 3 Turn air conditioner switch 8 ON 4 Adjust fan switch 2 temperature setting switch 3 and RECIRC FRESH selector switch 6 to the desired posi tions...

Page 170: ...t the air flow When doing this check that temperature setting a and air flow b are displayed on monitor 7 2 Press vent selector switch 4 and set vent display on the display monitor to f or g as shown...

Page 171: ...isplay 7 monitor to maximum heating 5 Adjust vents A B1 and B2 so that the air blows onto the window glass Vents C and D are fixed and cannot be adjusted When operating in the rainy season or when it...

Page 172: ...y cool when entering the cab 5 or 6 C lower than the outside temperature This temperature difference is considered to be the most suitable for your health so always be careful to adjust the temperatur...

Page 173: ...VOL 40 SEL button Each time this button 2 is pressed the mode changes as follows VOL volume J BAS bass J TRE treble J BAL balance The mode is displayed on display 7 For details of each mode see Metho...

Page 174: ...ressed within 2 seconds it is possible to select one of the already preset stations Wait for 6 sec after pressing the button and then press the button again to select the next preset station If it is...

Page 175: ...nel each for AM and FM can be preset to each Preset button REMARK It is also possible to save to the Preset button by using the auto store button Method of Tuning 1 Press power switch 1 and display th...

Page 176: ...each mode the display is returned automatically to its original setting after 5 seconds Setting Correct Time 1 Press display selector button 4 to display the time After 5 seconds the display will retu...

Page 177: ...pected failure so be careful not to get water on the equipment q Do not wipe the scales or buttons with solvent such as benzene or thinner Wipe with a dry soft cloth If the dirt cannot be removed easi...

Page 178: ...as the power supply for 12V equipment It will cause failure of the equipment Pull out the connector plug for taking out electric power from the rear side of the panel Maximum usable electric power is...

Page 179: ...hazard switch 2 30A Solenoid valve 3 10A PPC hydraulic lock solenoid 4 10A Window washer cigarette lighter 5 10A Horn 6 10A Auto pre heater lower wiper 7 10A Rotating lamp heated mirror if fitted 8 20...

Page 180: ...arge sized fuse wiring installed in the high current flow portion of the circuit to protect electrical components and wiring from burning in the same way as an ordinary fuse CONTROLLER 3 Controller in...

Page 181: ...ey do not contact the battery This may cause damage to the battery GREASE PUMP HOLDER 3 This is inside the door at the rear right of the machine When not using the grease gun fit it in this holder FIR...

Page 182: ...s The refuelling pump is located under the air cleaner at the right hand side of the machine 2 Place the fuel hose 2 which is stored in tray 3 into the fuel barrel placed next to the fuel tank 3 Switc...

Page 183: ...te the control circuit for a short time even after the engine is stopped Therefore it is possible to lower the work equipment under its own weight by operating the control lever in the direction to lo...

Page 184: ...tor Also check for flammable material dry leaves twigs etc around the battery engine muffler turbocharger or other high temperature engine parts If any dirt or flammable materials are found remove the...

Page 185: ...with new parts 10 Check bucket with hook if equipped for damage Check for damage to the hook guide and hook mount If any problem is found contact your Komatsu distrib utor for repairs 11 Check clean...

Page 186: ...the machine and check that the cooling water level is between the FULL and LOW marks on radiator sub tank 1 shown in the diagram on the right If the water level is low add water through the water fill...

Page 187: ...rain the water REMARK When only the water separator monitor lights up it lights up in the position shown in the diagram on the right If other monitors also light up the same time the water separa tor...

Page 188: ...drain all the water and sedi ment in the transparent cap 2 and also the fuel accumu lated in filter cartridge 1 4 Check that nothing more comes out from drain hose 3 then remove drain valve 4 5 Coat...

Page 189: ...ds after stopping the engine move each control lever for work equipment and travel to the full stroke in all directions to release the internal pressure 4 Check sight gauge G The oil level should be b...

Page 190: ...emove it 4 The oil level should be between the H and L marks on dipstick G If the oil level is below the L mark add oil through oil filler F 5 If the oil is above the H mark on the gauge remove cover...

Page 191: ...or dust wash the battery cap to clear the breather hole Check that there is no damage to the fuses that fuses of the specified capacity are used that there is no discon nection or trace of short circ...

Page 192: ...level After checking turn the switch back to the OFF position 2 If fuel is found to be low unscrew fuel filler cap F on the fuel tank and add fuel through the filler port until float gauge G comes up...

Page 193: ...blown up or there is a disconnection so ask your Komatsu dis tributor to carry out repairs 1 Turn the starting switch to the ON position 2 Turn the lamp switch ON night mode a and day mode b and check...

Page 194: ...fortable for operation then release the lever Sit with your back against the seat backrest when adjusting If your back is not against the backrest the backrest may sud denly move forward C Adjusting...

Page 195: ...rn knob 8 to the right to make the suspension harder or to the left to make the suspension softer Adjust the reading of the dial to match the operator s weight and select the optimum suspension REMARK...

Page 196: ...ot aligned correctly remove cover 1 and adjust the mounting angle A of the rear view camera Amount of adjustment of angle A Within a range of 35 80 1 When removing cover 1 insert a flat headed screwdr...

Page 197: ...of the camera and adjust mount ing angle A of the camera so that the center line of mounting bolt 4 is aligned with fourth from bottom scale B REMARK Part of the machine is shown on the monitor scree...

Page 198: ...machine q Install the side view mirror in the location indicated in the figure at right L 35 mm q Fix mirror securing stay 1 the way the side view mirror stretches outward to the maximum q If the sid...

Page 199: ...r securing bolt 4 and mir ror securing stay bolt 5 Tightening torque of bolt 4 4 0 5 4 Nm 0 41 0 55 kgm q When adjusting the side view mirror angle make an adjust ment so that the side of the machine...

Page 200: ...ar the seat belt during operations q Fit the seat belt so that it is not twisted Fastening and Removing This seat belt has a wind in device so it is not necessary to adjust the length Fastening Seat B...

Page 201: ...is at the LOCK position L 2 Check that each control lever and control pedal is at the Neutral position If the control levers and control pedal are not being touched they will be at the Neutral positio...

Page 202: ...repairs 2 After approx 2 seconds the screen will change to the working mode travel speed display monitor Next it will switch to the standard screen q Engine coolant temperature gauge 10 q Engine coola...

Page 203: ...d MAX position the engine will accelerate suddenly and cause damage to the engine parts q Do not keep the key in starting switch 3 at the START position continuously for more than 20 seconds If the en...

Page 204: ...completed turn the key in starting switch 3 to the START position C and start the engine REMARK If the ambient temperature is low the engine may not start even when the key in the starting switch 3 i...

Page 205: ...After the preheating monitor goes off turn the key in starting switch 3 to START position C The engine will start If the engine cannot be started with the above procedure wait for at least two minute...

Page 206: ...Monitor back ground C is blue B Display when temperature is low Monitor back ground C is white q If the warm up operation for the hydraulic equipment is not carried out thoroughly and the machine is m...

Page 207: ...ine warm up operation starts automatically When the engine automatic warm up operation starts the engine speed is maintained at a speed higher than the normal low idling speed If the engine water temp...

Page 208: ...ecking that the engine coolant temperature monitor displays the correct temperature carry out the warm up operation for the hydraulic equipment NOTICE Canceling automatic warm up operation If it becom...

Page 209: ...itor back ground C is blue B Display when temperature is low Monitor back ground C is white q The warming up operation for the hydraulic equipment is necessary not only for the circuit between the pum...

Page 210: ...on F then raise the bucket from the ground 5 Turn fuel control dial 4 to a point midway between low idling MIN and full speed MAX NOTICE When the work equipment is retracted take care that it does not...

Page 211: ...If the hydraulic oil temperature monitor is not displaying the correct temperature it is displaying low temperature repeat Steps 6 to 10 until the display is the correct temper ature A Display when t...

Page 212: ...rature monitor 7 Displays correct temperature q Fuel gauge 17 Indicator in green range q Fuel level monitor 18 Displays appropriate level 14 Check for abnormal exhaust gas color noise or vibration If...

Page 213: ...tion and run the engine at a mid range speed before oper ating 17 Before starting operations repeat the following operations slowly 3 to 5 times to circulate warm oil through the control circuits q Bo...

Page 214: ...laying the correct temperature it is displaying low temperature repeat Steps 6 to 10 until the display is the correct temper ature A Display when temperature is correct Monitor back ground C is blue B...

Page 215: ...ct Monitor back ground C is blue q B Display when temperature is low Monitor back ground C is white 2 Push working mode selector switch 20 of the machine monitor to select the working mode to be used...

Page 216: ...HINE OPERATIONS AND CONTROLS OPERATION 3 152 3 L mode For operations requiring fine control 4 B mode For breaker operations 5 ATT mode For operations with crusher or other double acting action attachm...

Page 217: ...Do not stop the engine abruptly except in an emergency If the engine has overheated do not try to stop it abruptly but run it at medium speed to allow it to cool down gradually and then stop it 1 Run...

Page 218: ...d the horn q Do not allow anyone to enter the area around the machine q Clear any obstacles from the travel path q There is a blind spot at the rear of the machine so be particularly careful when trav...

Page 219: ...rt the machine either by pushing lever 5 forward slowly or by stepping on the front part of pedal 6 slowly q When sprocket is situated at the front of the machine Start the machine either by pulling l...

Page 220: ...pull the levers 5 backward or slowly depress the rear part of the pedals 6 to move the machine backward q When sprocket A is at the front of the machine Slowly push the levers 5 forward or slowly dep...

Page 221: ...N MACHINE OPERATIONS AND CONTROLS 3 157 Stopping Machine 3 Avoid stopping suddenly Give yourself ample room when stopping 1 Put the left and right travel levers 1 in the neutral position then stop the...

Page 222: ...movement of the machine Use the travel levers to change direction Avoid sudden changes of direction as much as possible Espe cially when performing counter rotation spin turn stop the machine before t...

Page 223: ...ft A Forward left turn B Reverse left turn REMARK When turning to the right operate the right travel lever in the same way Counter rotation Turn Spin Turn When using counter rotation spin turn to turn...

Page 224: ...auto deceleration function the engine speed will suddenly rise operate the levers carefully 1 Before starting the swing operation turn swing lock switch 1 OFF and check that swing lock monitor 2 has...

Page 225: ...ontrol levers to operate the work equipment Note that when the levers are released they return to the HOLD position and the work equipment is held in that position q Arm control Move the left work equ...

Page 226: ...ce the engine speed to a mid range speed REMARK The control circuit on this machine is equipped with an accumulator Even if the engine is stopped if the starting switch key is turned to the ON positio...

Page 227: ...fi cient mode to match the type of work NOTICE If breaker operations are carried out in a mode other than the breaker mode there is danger of breakage of the hydraulic equipment Do not carry out break...

Page 228: ...switch 1 is kept pressed the selected mode is accepted and the screen returns to the standard screen q If the breaker mode is selected Really Set Breaker Mode is displayed on the screen To set to the...

Page 229: ...ing force to compact soil or break objects This is not only dangerous but will also drastically reduce the life of the machine Operations Using Travel Force Do not dig the bucket into the ground and u...

Page 230: ...contacts the rock behind the principle of the lever will bring excessive force to bear on the machine or work equip ment and there is danger that this may lead to breakage or damage of the machine In...

Page 231: ...nt and frame and this will reduce the service life of the machine Digging Hard Rocky Ground Do not attempt to directly excavate hard rocky ground with the work equipment It is better to excavate it af...

Page 232: ...pedals suddenly or take any other action to move the machine quickly 2 Do not operate the levers or pedals suddenly from FOR WARD A to REVERSE B or from REVERSE B to FOR WARD A 3 Do not operate the le...

Page 233: ...wo hours or more The lubricating oil inside the track rollers will rise to a high tem perature and there is danger that this will cause damage to the oil seal or leakage of oil When traveling continuo...

Page 234: ...aveling over such obstacles as far as possible If there is no way to avoid traveling over an obstacle reduce the travel speed keep the work equipment close to the ground and try to travel so that the...

Page 235: ...go under water and water will be thrown up by the cooling fan This may cause the fan to break Be extremely careful when driving the machine out of water Do not drive the machine in water deeper than...

Page 236: ...across slopes Always go down to a flat place to perform these opera tions It may be longer but it will ensure safety q Always operate or travel in such a way that it is possi ble to stop safely at any...

Page 237: ...opped on Slope If the engine stops when traveling uphill move the travel levers to the neutral position lower the bucket to the ground stop the machine then start the engine again Cab Doors on Slope q...

Page 238: ...ottom of the bucket in contact with the ground The angle between the boom and arm should be 90 to 110 The same applies when using the bucket installed in the reverse direction When only one side is st...

Page 239: ...arm is from a 45 angle away from the machine to a 30 angle towards the machine There may be some differences depending on the excavation depth but try to stay within the above range rather than operat...

Page 240: ...laces where the swing angle is narrow work efficiency can be enhanced by locating the dump truck in a place easily visi ble to the operator Loading is easier and capacity greater if you begin from the...

Page 241: ...ingers caught q Never insert your fingers into the pin holes when aligning the holes Stop the machine on a firm and flat surface and do the work When performing joint work appoint a lead and follow th...

Page 242: ...or link pin portion B install the bucket with O ring 3 fitted in the standard groove 4 Install the stopper bolts and nuts for each pin then grease the pin REMARK Lubricate with grease thoroughly until...

Page 243: ...trongly to the ground the resistance will be increased and it will be difficult to remove the pins NOTICE After removing the pins make sure that mud or sand does not get on them Dust seals are fitted...

Page 244: ...Install the stopper bolts and nuts for each pin then grease the pin REMARK Lubricate with grease thoroughly until the grease comes out from the end face When replacing the bucket replace the dust sea...

Page 245: ...e insert blocks underneath the track shoes As an additional safety measure thrust the bucket into the ground q If the control lever is touched by accident the machine may move suddenly and this may le...

Page 246: ...ACTIONS 3 201 q If the engine oil pressure monitor lights up stop the engine immediately For details of the inspection and action to take see TROUBLES AND ACTIONS 3 201 6 Stop the engine For details...

Page 247: ...2 Fuel tank filler port 3 Engine hood 4 Battery box cover 5 Left side door of the machine 6 Right side door of the machine 7 Battery box side cover only machines equipped with fuel supply pump 8 Hydr...

Page 248: ...ct the method of transportation to match the weight and dimensions given in SPECIFICATIONS PAGE 5 2 Note that the weight and dimensions given in SPECIFICATIONS may differ according to the type of shoe...

Page 249: ...rate any lever except the travel lever The center of gravity of the machine will change suddenly at the joint between the ramps and the trailer and there is danger of the machine losing its balance Tr...

Page 250: ...revent them from bending 3 Turn the travel speed selector switch to low speed travel Lo lamp lights up q Press travel speed selector switch 5 to switch the travel speed The travel speed Lo Mi Hi is di...

Page 251: ...ion of travel with the ramps and travel slowly Lower the work equipment as far as possible without caus ing interference When on the ramps operate only the travel lever Do not operate any other lever...

Page 252: ...e drive slowly and carefully Never operate the steering 11 At the moment the machine passes the rear wheels it tilts forward be careful not to let the work equipment hit the trailer body Drive the mac...

Page 253: ...follows 1 Extend the bucket and arm cylinders fully then lower the boom slowly 2 Set the lock lever securely to the LOCK position L 3 Stop the engine then remove the key from the starting switch 4 Cl...

Page 254: ...bolt 2 Rearview Mirrors The mirrors are at the positions shown in the diagram on the right If they are damaged or are to be removed for shipment or are to be installed again use the following procedur...

Page 255: ...ors A B 1 Install support 3 and clamp 5 to the handrail then tighten with bolt 4 2 Install mirror 1 to support 3 then tighten lock bolt 2 q Mirror C 3 Install bracket 3 to the machine with bolt 4 4 In...

Page 256: ...under the ramps to prevent them from bending 3 Remove the chains and wire ropes fastening the machine 4 Start the engine Warm the engine up fully 5 Set the lock lever to FREE position F 6 Turn the tra...

Page 257: ...he machine is unloaded with the arm pulled in it will cause damage to the machine q When moving onto the ramps do not thrust the bucket into the ground This will cause damage to the hydrau lic cylinde...

Page 258: ...t the machine may lose its balance NOTICE This method of lifting applies to the standard specification machine The method of lifting differs according to the attachments and options installed For deta...

Page 259: ...ack rollers from the rear However for machines equipped with a full roller guard for the track roller pass the wire rope under the track 6 Set the lifting angle A of the wire rope to 30 to 40 then lif...

Page 260: ...that has been drained when repairing the radiator please contact your Komatsu distributor or request a specialist company to carry out the operation Antifreeze is toxic Do not let it flow into drainag...

Page 261: ...ty of the battery will also drop If the battery charge ratio is low the battery electrolyte may freeze Maintain the battery charge as close as possible to 100 Insulate it against cold temperature to e...

Page 262: ...ground and allow the machine to be moved the next morn ing q Open the drain valve and drain any water collected in the fuel system to prevent it from freezing q Fill the fuel tank to capacity This mi...

Page 263: ...s to the elbows For details of the LOCK and FREE positions of the stop valve see ATTACHMENT REMOVAL AND INSTAL LATION 6 17 q To prevent corrosion be sure to fill the cooling system with Supercoolant A...

Page 264: ...it q Wipe off the grease from the hydraulic cylinder rods q Add oil and grease at all lubrication points q When the machine is stored for a long period moisture in the air will mix with the oil Check...

Page 265: ...rn the key to the ON position B The electric priming pump is actuated 2 Hold the key at the ON position B for 30 seconds then return it to OFF position A and wait for 10 seconds 3 Repeat Steps 1 and 2...

Page 266: ...ertical position q When the bucket control lever is operated to the CURL position and the work equipment is lowered under no load from a high position the bucket speed will drop momen tarily when the...

Page 267: ...machine and the machine being towed Operate the machine slowly and be careful not to apply any sudden load to the wire rope NOTICE The maximum towing capacity for this machine is 197 100 N 20 100 kgf...

Page 268: ...rame to fit the shackle when towing light objects Permissible towing load Max 108 000 N 11 000 kgf SEVERE JOB CONDITION 3 q When carrying out digging operations in water if the work equipment mounting...

Page 269: ...er gloves q When removing the battery first disconnect the cable from the ground normally the negative terminal When installing install the positive terminal first If a tool touches the positive termi...

Page 270: ...egative termi nal of the battery Be sure to attach the clips securely q Set the charging current to 1 10 of the value of the rated battery capacity when carrying out rapid charging set it to less than...

Page 271: ...nection to the upper structure frame a spark will be caused connect the cable to a spot as far away from the battery as possi ble Avoid the work equipment however because it is not a good conductor q...

Page 272: ...ether the machine is work ing normally or has failed Check also that all the control levers are in the neutral position 1 Make sure the clips are firmly connected to the battery terminals 2 Start engi...

Page 273: ...turn when starting switch is turned to ON Defective wiring Defective starting motor Insufficient battery charge Check repair Replace Charge Pinion of starting motor keeps going and out Insufficient ba...

Page 274: ...ise sucking in air Clogged element in hydraulic tank strainer lack of oil Clean see EVERY 2000 HOURS SERVICE Excessive rise in hydraulic oil temperature Loose fan belt Dirty oil cooler Lack of hydraul...

Page 275: ...TING Check fan belt tension replace Change coolant flush inside of cooling system see WHEN REQUIRED Clean or repair see EVERY 500 HOURS SERVICE Replace thermostat Tighten cap or replace packing Replac...

Page 276: ...combustion or mechanical Low grade fuel being used Overheating Damage inside muffler Excessive valve clearance Change to specified fuel Refer to Radiator coolant level monitor lights up as above Repl...

Page 277: ...When emergency pump drive switch is at the up emergency position normal operations become possible but have inspection carried out immediately E03 Swing brake system error Move the swing brake cancel...

Page 278: ...TROUBLES AND ACTIONS OPERATION 3 214...

Page 279: ...MAINTENANCE 14 WARNING Please read and make sure that you understand the SAFETY section before reading this section...

Page 280: ...ways report to the person in charge and carry out suitable action Fuel Strainer If your machine is equipped with a fuel strainer do not remove it while fueling Welding Instructions q Cut off power Wai...

Page 281: ...s see BLEEDING AIR FROM HYDRAULIC SYSTEM 4 46 Hydraulic Hose Installation q When removing parts at locations where there are O rings or gasket seals clean the mounting surface and replace with new par...

Page 282: ...ter metal particles dirt etc from getting in The majority of problems with the machine are caused by the entry of such impurities Take particular care not to let any impurities get in when storing or...

Page 283: ...ity is used the durabil ity may drop markedly COOLANT AND WATER FOR DILUTION 4 q The coolant has the important function of preventing corrosion as well as preventing freezing Even in the areas where f...

Page 284: ...YING OUT KOWA Komatsu Oil Wear Analysis 4 KOWA is a maintenance service that makes it possible to prevent machine failures and downtime With KOWA the oil is periodically sampled and analyzed This enab...

Page 285: ...ake other measures to protect them q To prevent any change in quality during long term storage be sure to use in the order of first in first out use the oldest oil or fuel first FILTERS 4 q Filters ar...

Page 286: ...UTLINE OF SERVICE MAINTENANCE 4 8 EXPLANATION OF LUBRICATION CHART DECAL 4 Interval of service Change filter Lubrication by greasing G Amount of oil required at change liters Check oil level change EO...

Page 287: ...oil 4 55 4 75 11 Boom cylinder foot pin Grease 4 57 12 Boom foot pin Grease 4 57 13 Bucket cylinder foot pin Grease 4 56 14 Boom cylinder rod end pin Grease 4 56 15 Arm cylinder foot pin Grease 4 56...

Page 288: ...system is checking fan belt tension checking damage or wear to the fan belt and checking battery fluid level q Never install any electric components other than those specified by Komatsu q External el...

Page 289: ...1 Every 500 hours Hydraulic tank breather 20Y 60 21470 Element 1 Every 500 hours Additional breather for hydraulic tank 207 60 51310 Element 1 Every 500 hours Fuel main filter 6754 71 6130 Cartridge 1...

Page 290: ...below 0 C be sure to use the recommended multi grade oil even if the ambient temperature may become higher during the course of the day q If the machine is operated at a temperature below 20 C a separ...

Page 291: ...matsu EOS0W30 Note 1 25 C 40 C Komatsu EOS5W40 Note 1 20 C 40 C Komatsu EO10W30DH 15 C 50 C Komatsu EO15W40DH 0 C 40 C Komatsu EO30DH Swing machinery case Final drive case Damper case Power train oil...

Page 292: ...portant function of anticorrosion as well as antifreeze Even in the areas where freezing is not an issue the use of antifreeze coolant is essential Komatsu machines are supplied with Komatsu Supercool...

Page 293: ...d diameter of bolt a mm Width across flats b mm Tightening torque Target value Service limit Nm kgm Nm kgm 6 8 10 12 14 10 13 17 19 22 13 2 31 66 113 172 1 35 3 2 6 7 11 5 17 5 11 8 14 7 27 34 59 74 9...

Page 294: ...r condition after a certain period of usage This is impor tant to ensure that these parts maintain their full performance at all times Furthermore should anything abnormal be found on any of these par...

Page 295: ...k equipment hose bucket cylinder inlet port 2 10 Work equipment hose bucket cylinder inlet port 4 0 m arm 2 11 Work equipment hose arm cylinder line boom foot j 2 12 Work equipment hose arm cylinder i...

Page 296: ...CKET CREARANCE 4 404 CHECK WINDOW WASHER FLUID LEVEL ADD FLUID 4 414 CHECK AND MAINTENANCE AIR CONDITIONER 4 424 WASHING WASHABLE FLOOR 4 434 BLEEDING AIR FROM HYDRAULIC SYSTEM 4 464 CHECKS BEFORE STA...

Page 297: ...ANCE CHANGE OIL IN FINAL DRIVE CASE 4 754 CLEAN HYDRAULIC TANK STRAINER 4 764 CHECKING CHARGE PRESSURE OF NITROGEN GAS IN ACCUMULATOR FOR CONTROL CIRCUIT 4 774 CHECK ALTERNATOR 4 814 CHECK ENGINE VALV...

Page 298: ...ele ment according to the table on the right q Change oil in hydraulic tank Change the oil according to the table on the right q Replacing additional filter element for breaker if equipped Use a guid...

Page 299: ...4 Carry out the following maintenance only after the first 1000 hours of operation on new machines q Check engine valve clearance adjust Special tools are needed for inspection and maintenance so cont...

Page 300: ...logging monitor light up the air cleaner will not be able to display its performance fully and the cleaning efficiency will also go down In addition during the cleaning operation more dirt stuck to th...

Page 301: ...n straight 4 After removing the outer element 5 cover the inner ele ment 6 with a clean cloth or tape to prevent dirt or dust from entering 5 Wipe off or brush off the dirt stuck to cover 3 and the in...

Page 302: ...or oil stuck to the seal portion of the new element or cleaned element Wipe off any dirt or oil 11 Push the outer element in straight with your hand when installing it to the air cleaner body If the o...

Page 303: ...l cover 3 as follows 1 Align cover 3 with the element 2 Hook the tip of hook 2 to the protruding part of the air cleaner body and lock it in position 3 When locking hooks 2 in position apply the hooks...

Page 304: ...evacuator valve 4 installed to cover 3 NOTICE q The inner element must not be cleaned and used again When replacing the outer element replace the inner element at the same time q If the inner element...

Page 305: ...n or the outer element is not pushed in straight and cover 3 is assembled by force to hook 2 there is danger that the hook and air cleaner body may be damaged so be careful when assembling 9 Install c...

Page 306: ...s where freezing is not an issue the use of antifreeze coolant is essential Komatsu machines are supplied with Komatsu Supercoolant AF NAC Komatsu Supercoolant AF NAC has excellent anticorrosion antif...

Page 307: ...t company to handle any coolant containing antifreeze or contact your Komatsu distributor Antifreeze is toxic so never pour it into drainage water ditches or drain it onto the ground surface Use antif...

Page 308: ...r temperature rises above 90 C run the engine for about 10 minutes 7 Stop the engine and open drain valve 4 to drain the water 8 After draining the water clean the radiator with detergent For the clea...

Page 309: ...ub tank then add water until the coolant level is between the FULL and LOW marks q If the sub tank is extremely dirty and it is difficult to clean replace it with a new part 15 Stop the engine wait fo...

Page 310: ...tening 1 Tighten first to a tightening torque of 393 39 Nm 40 4 kgm then check that the nut and track shoe are in tight contact with the mating surface of the link 2 After checking tighten a further 1...

Page 311: ...surface of the track shoe Deflection a should be 10 30 mm If the track tension is not at the standard value adjust it in the following manner Adjustment WARNING There is danger of plug 1 flying out un...

Page 312: ...given below If track tension is not relieved by this procedure contact your Komatsu distributor for repairs 1 Loosen plug 1 gradually to release the grease 2 When loosening plug 1 turn it a maximum o...

Page 313: ...is no one in the surrounding area q There is a hazard that fragments will fly during the replacement work so always wear protective equip ment like safety glasses and gloves 1 To make it possible to...

Page 314: ...d the steel ball is about to come out q Steel ball 7 sinks in when it is pushed by hand 5 Clean the surface of adapter 4 and remove the soil with a knife 6 Use your hand or a hammer to push rubber pin...

Page 315: ...e in the tooth 1 and knock it in so that the top surface of lock pin 2 is the same height as the surface of tooth 1 10 After replacing a bucket tooth always check the following 1 After the lock pin 2...

Page 316: ...there is no one in the surrounding area q There is a hazard that fragments will fly during the replacement work so always wear protective equip ment like safety glasses and gloves 1 To make it possib...

Page 317: ...en replacing the bucket side cutters and shroud Set the work equipment in a stable condition stop the engine then set lock lever securely to the LOCK position L Side Cutters Loosen mounting bolts 2 th...

Page 318: ...bucket to one side so that all the play can be measured at one place the right side in the diagram Use a clearance gauge for easy and accurate measure ment 3 Loosen 4 plate mounting bolts 2 and loosen...

Page 319: ...There are two types depending on the freezing temperature 10 C general use and 30 C cold area use select according to the area and season Mixture Ratio of Pure Washer Fluid and Water The proportion d...

Page 320: ...ent No refrigerant REMARK When there are bubbles the refrigerant gas level is low so contact your Komatsu distributors to have refrigerant added If the air conditioner is run with the refrigerant gas...

Page 321: ...ectors inside the operator s cab q Never spray water above the pedestal of the operator s seat 2 q If any water splashes on the surrounding equipment be sure to wipe it off With the washable floor it...

Page 322: ...Pull the knob of floor mat holder clip 5 and remove clip 5 7 Remove the floor mat 8 Remove the cap from water drain hole 3 9 Flush out the dirt on the floor directly with water through water drain ho...

Page 323: ...l side 2 Put blocks under the track and dig the work equipment into the ground Method Using Block WARNING Select a firm flat place Put strong blocks under the undercarriage to stabilize the machine an...

Page 324: ...hout filling the pump case with hydraulic oil abnormal heat will be generated and this may cause an unexpected damage to the pump 2 Starting engine Start the engine referring to STARTING ENGINE 3 139...

Page 325: ...low idle and swing the work equipment 90 to bring it to the side of the track 3 Jack up the machine until the track is raised slightly from the ground Rotate the track under no load for 2 minutes Rep...

Page 326: ...TION section q Check coolant level add coolant q Drain water and sediment from fuel tank q Check for water and sediment in water separator drain water q Check oil level in hydraulic tank add oil q Che...

Page 327: ...ne was subjected to jobs in the water be sure to grease the wet pins 1 Set the machine to the greasing posture shown on the right lower the work equipment to the ground then stop the engine 2 Using a...

Page 328: ...or every 50 hours service should be carried out at the same time LUBRICATE SWING CIRCLE 4 1 Lower the work equipment to the ground 2 Using a grease pump pump in grease through the grease fittings show...

Page 329: ...he battery electrolyte to go above the UPPER LEVEL line If the electrolyte level is too high it may leak and cause damage to the paint surface or corrode other parts q When adding distilled water in c...

Page 330: ...s 1 Remove cap 2 at the top of the battery look through the water filler port 3 and check the electrolyte surface If the electrolyte does not reach the sleeve 4 add distilled water so that the level r...

Page 331: ...position of bolt 2 as a fulcrum 3 When the position of the compressor is determined tighten bolts 2 and 3 to hold it in position NOTICE q Check each pulley for damage wear of the V groove and wear of...

Page 332: ...om the dipstick with a cloth 2 Fully insert dipstick G into the filler pipe 3 Pull out dipstick G and check that the oil level is between the H and L marks on the dipstick 4 If the oil does not reach...

Page 333: ...g P perpendicular to the ground surface 2 Remove plug F using the handle When the oil level reaches a point 10 mm below the bottom of the plug hole the correct amount of oil has been added 3 If the oi...

Page 334: ...en carrying out heavy duty operations such as hydraulic breaker operations carry out the greas ing every 100 hours 1 Set the machine to the greasing posture shown on the right lower the work equipment...

Page 335: ...MAINTENANCE MAINTENANCE PROCEDURE 4 57 6 Boom cylinder foot pin 2 places 7 Boom foot pin 2 places...

Page 336: ...nal injection pump and nozzle If any part other than a genuine Komatsu filter cartridge is used dust or dirt may get in and cause problems with the injection system Always avoid using substitute parts...

Page 337: ...portion is the clean side so do not remove cap B when adding fuel Be careful not to let dirt or dust get into center portion on the clean side 11 When installing tighten until the packing surface cont...

Page 338: ...8 four times 20 After replacing the filter cartridge start the engine and run it at low idling for 10 minutes Check for leakage of fuel from the filter seal surface and transparent cap mounting If any...

Page 339: ...lving frame and remove cover 2 3 Insert scale 3 through inspection and maintenance hole A into the grease and check that height S of the grease is at least 54 mm If the grease level is low add grease...

Page 340: ...ver of drain valve P slowly drain the oil then raise the lever to close the valve 3 Open the cover at the rear right then use a filter wrench to turn filter cartridge 2 to the left to remove it 4 Clea...

Page 341: ...add engine oil through oil filler F to between the H and L marks on dipstick G 7 Run the engine at idling for a short time then stop the engine and check again that the oil level is between the H and...

Page 342: ...e and overheating In a dusty job site check the fins every day regardless of the maintenance interval 1 Open the engine hood 2 Loosen screw 1 and pull up net 2 3 Clean net 2 it is to be installed agai...

Page 343: ...E PROCEDURE 4 65 7 Remove undercover 9 and blow the mud dirt and leaves that have been cleaned off to the outside 8 Push in cleaned net 2 back to the original place and secure it with screw 1 9 Secure...

Page 344: ...roughly before using it again Replace the filter with a new part every year If the clog ging of the filter cannot be removed by blowing with air or washing in water replace the filter immediately q Th...

Page 345: ...2 will not close REPLACE BREATHER ELEMENT IN HYDRAULIC TANK 4 WARNING q The parts and oil are at high temperature immediately after the engine is stopped and may cause burns Wait for the temperature...

Page 346: ...e engine is stopped and may cause burns Wait for the temperature to go down before starting the work q When removing the oil filler cap turn it slowly to release the internal pressure then remove it 1...

Page 347: ...ter cartridge always use a genuine Komatsu part q The common rail fuel injection system used on this machine consists of more precise parts than the conventional injection pump and nozzle If any part...

Page 348: ...e 2 bleed the air Bleed the air as follows 9 Add fuel to the fuel tank until full to FULL mark on the fuel gauge 10 Insert the key in the starting switch and turn the key to the ON position B The elec...

Page 349: ...the cap from oil filler F and release the internal pressure 3 Loosen 6 bolts then remove cover 1 When doing this the cover may fly out under the force of spring 2 so hold the cover down when removing...

Page 350: ...y cause serious burns Wait for the oil temperature to go down before performing this operation q Refill capacity 16 5 liters 1 Remove cover A of the inspection hole Only demolition specification machi...

Page 351: ...NOTICE If excess oil is supplied drain it to the specified amount to avoid overheating 3 Install plug P and cap F 4 Close the door CHECK ALL TIGHTENING POINTS OF ENGINE EXHAUST PIPE CLAMPS 4 Please a...

Page 352: ...corrosion resistor fully to the right to close it 2 Using a filter wrench turn cartridge 2 to the left to remove it 3 Install a new filter cartridge after coating oil on its sealing face In the instal...

Page 353: ...the plug slowly to release the pressure q Refill capacity each 9 0 liters q Prepare a handle 1 Set the TOP mark at the top with the TOP mark and plug P perpendicular to the ground surface 2 Set a cont...

Page 354: ...er F and release the internal pressure 2 Loosen 6 bolts then remove cover 1 When doing this the cover may fly out under the force of spring 2 so push the cover down when removing the bolts 3 Hold the...

Page 355: ...it or weld it Do not hit it roll it or subject it to any impact When disposing of the accumulator the gas must be released Please contact your Komatsu distributor to have this work carried out NOTICE...

Page 356: ...he work equipment in the maximum reach posture arm fully out bucket fully dumped at a height A 1 5 m from the ground Carry out Steps 3 5 within 15 seconds When the engine is stopped the pressure in th...

Page 357: ...down under its weight and con tacts the ground the accumulator is normal If the work equipment does not go down or stops in mid way the charged pressure of the gas in the accumulator for the hydrauli...

Page 358: ...the pressure in the accumulator gradually goes down For this reason the release can only be carried out immediately after the engine is stopped 4 Stop the engine 5 Turn the starting switch to the ON p...

Page 359: ...inspection carried out every 1000 hours CHECK ENGINE VALVE CLEARANCE ADJUST 4 Special tools are needed for inspection and maintenance so contact your Komatsu distributor CHECK VIBRATION DAMPER 4 Check...

Page 360: ...ime CHECK WATER PUMP 4 Since the pulley may have play oil may leak water may leak and the drain hole A may be clogged contact your Komatsu distributor for inspection overhaul or replacement CHECK STAR...

Page 361: ...ing out the operation In addition loosen the bolts slowly when carrying out the operation Do not disassemble the accumulator Do not bring it near flame or dispose of it in fire Do not make holes in it...

Page 362: ...ing of the rubber If there are any loose bolts or hardened rubber please contact your Komatsu distributor for replacement CHECK FOR MISSING FUEL SPRAY PREVENTION CAP HARDENING OF RUBBER 4 Check that t...

Page 363: ...equipped with a hydraulic breaker the hydraulic oil will deteriorate much faster than dur ing normal bucket operations For details see MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER 4 20 when carrying out...

Page 364: ...areful not to get oil on yourself q First remove drain plug P at the bottom of the tank then remove drain plug A at the suction tube If they are removed in this order almost the same amount of oil can...

Page 365: ...00 2000 and 4000 hours service should be carried out at the same time REPLACE HIGH PRESSURE PIPING CLAMP 4 Contact your Komatsu distributor to have the engine high pressure clamps replaced REPLACE FUE...

Page 366: ...MAINTENANCE PROCEDURE MAINTENANCE 4 88...

Page 367: ...SPECIFICATIONS 15...

Page 368: ...horsepower kW HP rpm 184 247 1 900 A Overall length mm 11 140 11 140 B Overall height mm 3 285 3 285 C Overall width mm 3 290 2 990 D Track width mm 700 600 E Height of cab mm 3 100 3 100 F Radius of...

Page 369: ...digging reach mm 11 100 11 100 B Max digging depth mm 7 380 7 380 C Max digging height mm 10 100 10 100 D Max vertical wall digging depth mm 6 400 6 400 E Max dumping height mm 7 050 7 050 F Min dump...

Page 370: ...length 3 Boom length 4 Hydraulic pressure 37 3 MPa WORKING CONDITIONS q WITH BUCKET 1014 kg q IF OBJECT HANDLING IS PERFORMED WITH OTHER TOOL INSTALLED THE WEIGHT DIFFER ENCE OF THE TOOL SHALL BE DED...

Page 371: ...SPECIFICATIONS SPECIFICATIONS 5 5...

Page 372: ...SPECIFICATIONS SPECIFICATIONS 5 6...

Page 373: ...ATTACHMENTS AND OPTIONS 16 WARNING Please read and make sure that you understand the SAFETY section before reading this section...

Page 374: ...ry out operations with the load kept raised by the crane Always use a stand to prevent the load from falling q When removing a heavy part consider the balance after it is removed To prevent the machin...

Page 375: ...se in the case of loss of hydraulic pressure If in doubt consult the manufacturer of the quick coupler 3 Read the instruction manual of the quick coupler carefully and follow the recommendations If in...

Page 376: ...t bucket To pick up a new bucket or attachment 1 Position the quick coupler over the new bucket or attachment 2 Operate switch 1 NOTE The switch has a safety lock mechanism to prevent accidental opera...

Page 377: ...ructions in ATTACHMENT REMOVAL AND INSTALLATION WARNING Check daily that the hoses and fittings in the quick coupler piping system are in good condition Pay par ticular attention to the hoses and fitt...

Page 378: ...eed and use the L mode for fine control operations q Depending on the posture of the work equipment there is the danger that the wire or load may slip off the hook Always be careful to maintain the co...

Page 379: ...FREE Hydraulic oil flows L LOCK Hydraulic oil stops When removing or installing attachments set this valve to the LOCK position Z Z a 1 Stop valve 6 Accumulator 2 Selector valve 7 1st Attachment propo...

Page 380: ...added the return circuit may not switch automatically Attachment 1 Control Proportional Control Rolling Switch WARNING When operating attachment using rolling switch lock the pedal with the lock pin...

Page 381: ...a Locked Position b Only front of pedal can be operated to full position rear is locked Position c Both front and rear of pedal can be operated to full position q When not using the attachment set the...

Page 382: ...ction Slight move ment of the roller will give slight movement of the clamshell full movement of the roller will give faster movement of the clam shell Note If installing 2nd attachment as a field kit...

Page 383: ...les in it or weld it Do not hit it roll it or subject it to any impact When disposing of the accumulator the gas must be released Please contact your Komatsu distributor to have this work carried out...

Page 384: ...as an option and the mode is set to B mode 1 The system is set to the breaker operation circuit 1 way circuit 2 The hydraulic oil flowing to the breaker circuit flows to the additional filter for the...

Page 385: ...of the stop valve piping Two spots on the left and right Be careful not to lose or damage any part that has been removed 2 Connect attachment piping 2 provided by the attachment maker to the part from...

Page 386: ...of the oil flow is as shown in the diagram below When the front of the pedal is depressed oil flows to the piping on the left side of the work equipment when the rear of the pedal is depressed oil fl...

Page 387: ...safety glasses dust mask or other protec tive equipment NOTICE For details of the replacement interval for the element MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER 4 20 q Prepare a container to catch t...

Page 388: ...case 2 8 Turn filter case 2 to the left remove it then take out ele ment 3 9 Clean the removed parts then install new element 3 q Element 3 must be installed facing in the correct direction Set direct...

Page 389: ...t the lock lever to the FREE position F 3 After carrying out Step 2 operate each work equipment control lever and attachment control pedal fully to the front rear left and right 2 or 3 times within 15...

Page 390: ...achment side Install the plugs to the two outlets The plugs are used to prevent the attachment from incor rect operation caused by mixing in of foreign matter After the plugs are correctly installed s...

Page 391: ...arm with pin A and then pin B 3 Lower the attachment to the ground and stop the engine 4 Turn the starting switch to the ON position B then set the lock lever to the FREE position F 5 After carrying o...

Page 392: ...Take care that no dust mud etc adheres to the hose mouthpiece portions If O ring is damaged replace it with a new one 9 Connect the hose at the attachment side When doing this check the direction of...

Page 393: ...in of the pedal to the LOCK position to prevent the pedal from being operated The method of operating the attachment is as follows Operation When Using Breaker 6 NOTICE When carrying out breaker opera...

Page 394: ...Keep working mode selector switch 1 pressed q Press switch F6 q Leave as it is for 5 seconds 3 If the breaker mode is selected Really Set Breaker Mode is displayed on the screen To set to the breaker...

Page 395: ...lement For details see MAINTENANCE INTERVAL FOR HYDRAULIC BREAKER 4 20 Operation When Using General Attachment 1 e g Crusher 6 General attachment 1 can be operated using either the rolling switch on t...

Page 396: ...of the following to accept the selection Q Keep working mode selector switch 1 pressed Q Press switch F6 Q Leave as it is for 5 seconds q On the user menu attachment setting it is possible to make the...

Page 397: ...structions on page 6 24 LONG TERM STORAGE 6 If the equipment is not to be used for a long time do as follows q Set the stop valve in the LOCK condition q Fit a plug at the tip of the stop valve piping...

Page 398: ...may be problems with safety so please contact your Komatsu distributor before installing q Installing attachments or options without consulting your Komatsu distributor may not only cause problems wit...

Page 399: ...es with the body Operate the long arm carefully q When the boom is fully lowered during oblique digging the boom interferes with the undercarriage Operate the boom carefully Categories of use For gene...

Page 400: ...ge obstacles such as boulders or fallen trees travel at low speed B Normal soil soft ground q These shoes cannot be used on rough ground where there are large obstacles such as boulders or fallen tree...

Page 401: ...S WHEN USING 6 q For safety avoid abrupt traveling swing and stopping q Make the teeth of the bucket vertical while digging q Do not swing the bucket to crush the rock or to cut through soil q Do not...

Page 402: ...d will vary Hence consult your Komatsu distributor for the selection of optimum attachments HYDRAULIC BREAKER 6 Main Applications q Crushed rock q Demolition work q Road construction This attachment c...

Page 403: ...r body will gradually move out of line with each other always adjust the bucket cylinder to keep them aligned Always keep the chisel pressed against the impact surface properly to prevent using the im...

Page 404: ...ONS 6 32 Operations using the swing force Moving the chisel while carrying out impacting operations Holding the chisel horizontal or pointed up when carrying out impacting operations Twisting the chis...

Page 405: ...Greasing Supply grease in the correct position NOTICE If the breaker is greased in an improper posture it is filled with more grease than necessary As a result soil and sand will enter the hydraulic...

Page 406: ...or fire on the KOMTRAX equipment or the machine itself Your Komatsu distributor will carry out removal and installation of KOMTRAX q Do not allow cables or cords to become caught do not damage or pul...

Page 407: ...left of the travel levers controls two functions on a 2 Piece Boom machine The pedal controls the operation of the second boom adjust cylinder Pressing down on the front of the pedal pushes the secon...

Page 408: ...ATTACHMENTS AND OPTIONS 6 36 9JH02584E 1 2 Piece boom control pedal B A A Extend 2nd boom raise cylinder B Retract 2 nd boom raise cylinder 9JH02586F A Press the front of the pedal B Press the rear of...

Page 409: ...reparation of machine for long term storage 2 When leaving the machine for a short time TESTING AND ADJUSTING 6 INSPECTION AND MAINTENANCE To use the machine safely and to prevent failures before they...

Page 410: ...tion and maintenance items for the chassis other than those listed above See MAINTENANCE PERODIC MAINTENANCE 6 q Changing the hydraulic oil When changing the hydraulic oil set the work equipment in th...

Page 411: ...mm 3200 mm A Max digging height 12080 12515 B Max dumping height 8755 9195 C Max digging depth 5815 6435 D Max vertical wall digging depth 4860 5410 E Max digging reach 10710 11285 F Max digging reac...

Page 412: ...Arm length 3 Boom length 4 Hydraulic pressure 37 2 MPa WORKING CONDITIONS q WITH BUCKET 1014 kg q IF OBJECT HANDLING IS PERFORMED WITH OTHER TOOL INSTALLED THE WEIGHT DIFFER ENCE OF THE TOOL SHALL BE...

Page 413: ...4350 7050 4300 9350 5700 12350 7950 1 5m 7400 4700 9150 5650 11900 7850 15600 12250 3 0m 4 5m 3 2m 7 5m 4550 4550 7200 6800 7650 7650 6 0m 4350 4350 4500 4500 7300 6750 8150 8150 8650 8650 4 5m 4400 4...

Page 414: ...0 5000 12200 7000 1 5m 7300 4150 9050 4950 11750 6900 15350 10750 3 0m 4 5m 3 2m 7 5m 4550 4550 7150 6200 7600 7600 6 0m 4350 4250 4500 4200 7250 6100 8100 8100 8650 8650 4 5m 4400 3700 6850 4150 7700...

Page 415: ...edure Refer to TRANSPORTATION 3 184 for correct procedure for loading and unloading of machine 2 piece boom machine is same as mono boom machine For transportation dimensions refer to the below mentio...

Page 416: ...BOOM AND ARM 6 OPERATION INSTRUCTION 6 NOTE N Note Specifications are subject to change without notice PC350LC 8 Track shoe mm Operating weight kg Ground pressure kg cm2 700mm 39500 0 60 800mm 39880...

Page 417: ...recommended Please follow these recom mendations A Type of work R Recommended work C Work requiring caution N Work that is not permitted Work 1 Dredge rivers specific gravity max 1 8 R 2 Hauling loadi...

Page 418: ...that are found q Check daily for any oil leakage q Check all parts of the work equipment for any cracks bending buckling and play of the boom and arm If any abnormality is found contact your Komatsu...

Page 419: ...per ations CAUTION Do not use the POWER MAX switch Do not use in P mode CAUTION Do not bring any shock loading on the work equipment CAUTION Do not apply any side load to the bucket CAUTION Attachment...

Page 420: ...q Do not use any bucket with a capacity greater than shown in this table Buckets which do not conform to this table must not be used Do not use any attachment which imposes vibration loading onto the...

Page 421: ...m q When the safety lock lever is raised take care not to touch the work equipment control lever If the safety lock lever is not properly locked at the upper position the work equipment and swing will...

Page 422: ...q With the track frame facing to the rear the machine will move in the reverse direction by forward travelling and in the forward direction by reverse travelling q When the travel lever is used check...

Page 423: ...boom and bucket When the lever in Neutral N position the boom and the bucket will be retained in the position in which they stop NOTICE q For levers 2 3 and 4 the engine speed changes as follows beca...

Page 424: ...r installing link 1 Lower the boom and extend the arm cylinder to set in the stow posture 2 When the arm cylinder is almost at the end of the stroke lower the boom slowly to bring the bucket or bucket...

Page 425: ...f counterweight PC350LC 8 22m super long front Undercarriage type LC A Overall shipping height mm 3400 B Overall shipping length mm 17210 C Transport length mm 15790 D Track length mm 4955 E Track len...

Page 426: ...igging height mm 16260 B Maximum dumping height mm 13480 C Maximum digging depth mm 17485 D Maximum vertical wall digging depth mm 14275 E Maximum digging depth for 2400mm level mm 17410 F Minimum dig...

Page 427: ...0 1700 1250 1900 1700 2200 2200 2550 2550 3050 3050 0 1050 1050 1750 1200 2000 1600 2300 2050 2750 2650 3350 3350 2 1200 1050 1750 1100 2050 1450 2450 1900 2900 2450 3550 3150 4 1400 1100 2100 1400 25...

Page 428: ...hould be carried out SERVICE ITEM Page EVERY 50 HOURS SERVICE LUBRICATING 1 Arm Link coupling pin 1 point 6 57 2 Arm Bucket coupling pin 1 point 6 57 3 Link coupling pin 2 points 6 57 4 Bucket cylinde...

Page 429: ...asing posture on next page then lower the work equipment to the ground and stop the engine 2 Using a grease pump pump in grease through the grease fittings shown by arrows 3 After greasing wipe off an...

Page 430: ...nvironment 1 Set the work equipment in the greasing posture below then lower the work equipment to the ground and stop the engine 2 Using a grease pump pump in grease through the grease fittings shown...

Page 431: ...AND ARM 6 59 4 Bucket cylinder foot pin 1 point 5 Arm link coupling pin 1 point 6 Arm bucket coupling pin 1 point 7 Link coupling pin 2 points 8 Bucket cylinder rod end 1 point 9 Bucket Link coupling...

Page 432: ...SUPER LONG FRONT BOOM AND ARM ATTACHMENTS AND OPTIONS 6 60...

Page 433: ...HIGH REACH DEMOLITION MANUAL 17 WARNING Please read and make sure that you understand the safety volume before reading this section...

Page 434: ...CE Refer to main machine manual for other Caution Items 1 2 3 4 5 7c 6 9 10 11 12 13 8 7b 7a 1 Attachment 8 Boom cylinder quantity two 2 Bucket cylinder 9 FOPS 3 Arm 10 Idler 4 Arm cylinder 11 Track f...

Page 435: ...s CAUTION Do not use Power Max function with High reach Demolition Equipment fitted CAUTION Do not use breaker mode or breaker equipment with High Reach Demolition Equipment installed CAUTION If any l...

Page 436: ...at they are in the correct place and always keep them clean When cleaning them do not use organic solvents or gasoline there may cause the labels to peel off q There are also other labels in addition...

Page 437: ...DEMOLITION MANUAL POSITION FOR ATTACHING SAFETY LABELS 7 5 SAFETY LABELS 1 Prohibition of lifting 208 00 KA120 q Demolition machine fitted with high reach work equipment or dig boom must not be used f...

Page 438: ...hen pushing the safety lock lever down be careful not to touch the work equipment control lever Lever 1 is a device which locks the work swing and travel equipment and attachment if equipped control l...

Page 439: ...quipment fitted This lever 2 is used to switch the direction of travel of the machine shows the operation of the pedal a FORWARD The lever is pushed forward The pedal is angled forward b REVERSE The l...

Page 440: ...in undercarriage adjustment mode Boom operation Bucket operation a RAISE b LOWER c DUMP d CURL N Neutral The boom and bucket are held in position and do not move Hydraulic variable gauge undercarriag...

Page 441: ...ion depends upon the type of crusher fitted Standard motion Operate switch forwards attachment rotates clockwise Operate switch backwards attachment rotates anti clockwise A The direction of rotation...

Page 442: ...ers q Do not put your foot on the pedal except when operating it If you rest your foot on the pedal during operations and you depress the pedal by mistake the attachment may move suddenly and cause se...

Page 443: ...leration range the engine speed will suddenly increase so be careful when operating the levers q When the proportional control switch 11 is operated forward the attachment is actuated in forward direc...

Page 444: ...rting a raise or lower movement of the cab q Always ensure that no one is near the cab when the cab is raising or lowering q Before tilting the cab up or down make sure that there are no loose objects...

Page 445: ...th an alarm buzzer to ensure that operations can be carried out in safety q If the boom goes outside the hatched range the red range on the boom angle gauge the alarm buzzer will sound If this happens...

Page 446: ...is used to turn on the roof wiper and to operate the washer The switch has 3 positions a ON Is with the rear end of the switch down The wiper is on b ON Is with the rear end of the switch pressed and...

Page 447: ...upply grease to the greasing points shown in the diagram q Check for cracks furrows in the base metal q Check for wear and damage to the base metal q Perform all checks required by the basic machine m...

Page 448: ...t the ground inside the operating range is flat and firm q Never operate the boom outside the specified working range There is danger that the machine may overturn As far as possible always carry out...

Page 449: ...he specified working range If you do the machine may fall over WARNING To ensure long life of the work equipment and to carry out work safely avoid the following kinds of operation q Do not travel at...

Page 450: ...7 18 q Do not use hitting force for demolition work q Do not use the swing force for hitting operations q Do not use the dropping force of the machine for operations q Do not use the travel force of t...

Page 451: ...nd crush at one blow q Do not pick up objects and raise or lower them q When gripping objects do not use cylinder to shake them WARNING If there is external force bearing on the attachment when hit ti...

Page 452: ...e allowance at the stroke end when extending or retracting the cylinder If the machine is operated with the bucket cylinder at the extract ing end piston 1 strikes cylinder head 2 As a result cylinder...

Page 453: ...N MANUAL POSITION FOR ATTACHING SAFETY LABELS 7 21 PROHIBITION OF WORK WITH HYDRAULIC BREAKER 7 Do not install a hydraulic breaker to the long demolition arm for breaking work If you do the work equip...

Page 454: ...the two levers until they are horizontal 5 Return to the cab start the engine and set the safety lock lever into the operation position 6 Operate the SLEW function It may be necessary to travel the m...

Page 455: ...and pedal q The left hand work equipment lever is used to operate the arm and swing the machine The right hand work equipment lever is used to operate the boom and bucket The right hand pedal is used...

Page 456: ...CH DEMOLITION MANUAL 7 24 Supplementary explanation The work equipment can be lowered to the ground by operating the levers and right hand pedal within 15 seconds after the engine has stopped Intermed...

Page 457: ...operated by the left wrist control lever The right wrist control lever controls open close The left wrist control lever controls rotation q Attachment rotates when the button 2 is operated forward or...

Page 458: ...IPMENT 7 Operate the work equipment slowly In particular operate the work equipment as slowly as possible during lowering operations Operate as follows 1 Extend boom cylinder 2 Extend intermediate lin...

Page 459: ...in the green range of the boom angle gauge At this time boom angle A is 77 and maximum working radius B is 11 0 m at the arm top point 2 When raising and lowering the crusher retract the arm and inter...

Page 460: ...ound If the alarm buzzer sounds return the boom to a position where the buzzer stops If the alarm buzzer does not sound when the boom is below the specified angle inclination gauge in red range make s...

Page 461: ...indicator of the inclination gauge is on line P between the green range and red range 3 Loosen bolt B and move plate 2 to the left or right to fix dimension L so that the buzzer sounds at this positio...

Page 462: ...o not perform the actions in a different order REMARK A Komatsu demolition work equipment support system is available through your dealer This system should be used to hold the demolition work equipme...

Page 463: ...tem 3 to the Left and Right Support Items 1 and 2 to form the complete Stand Section shown in the diagram Lift the work equipment using boom raise cylin ders so that the supports are free from the gro...

Page 464: ...m release pins 13 Open the valves on the pin retract circuit left and right side of the demolition first boom to allow hydraulic pressure to be applied to the retractable pins C closed no power to pin...

Page 465: ...first boom section to settle the Stand B onto the ground When Stand B is settled onto the ground simulta neously lower the first boom section and reverse the machine to disengage the upper pin from t...

Page 466: ...pment remove the additional demolition counterweight from the main demolition counterweight Eyebolts are provided with the machine for this purpose Refitting the High reach Demolition Equipment is ach...

Page 467: ...ant that the machine is aligned correctly with the demolition digging equipment Otherwise the pins will be very difficult to fit or the equipment may fall REMARK The upper pin used to connect the demo...

Page 468: ...ecessary to adjust the position of the boom raise cylin ders to allow easy withdrawal of the pins 9 Store the components of the work equipment stand in a safe and clean environment 10 Raise the boom s...

Page 469: ...rn the machine operator if there is a problem Damage could occur if the pins are not correctly aligned WARNING q Never use ANY other control to cause the hydraulic pins to move This could cause injury...

Page 470: ...will occur if hoses are connected incorrectly 18 Reconnect the grease lines 19 If the digging arm is not fitted carry out the steps in CON NECTING DIGGING ARM TO DEMOLITION DIGGING BOOM 7 41 If the di...

Page 471: ...ent fitted adjust the flow valves to the following settings To adjust the flow setting rotate the body until dim t is achieved After setting the flow valves check that the work equipment is operating...

Page 472: ...tings To adjust the flow setting rotate the body until dim t is achieved After setting the flow valves check that the work equipment is operating at a safe speed If in doubt contact a Komatsu dealer 1...

Page 473: ...ment of the correct rating to prevent possibility of equipment falling Remember to switch the Equipment change over switch in the cab to High Reach when the High Reach Demolition equipment is installe...

Page 474: ...nnections are clean 9 Remove plugs from the hydraulic lines and reconnect WARNING Take care to reconnect the hydraulic lines in the correct order Improper operation of the machine will occur if hoses...

Page 475: ...r ate the control levers and pedals to release residual pressure in the circuit 4 For safety during air purging close the stop valve in the work equipment piping 5 For pipe fittings refer to the parts...

Page 476: ...f boom lock valve q Replace plug 1 REMARK Before replacing plug 1 stop the engine and release residual pressure in the piping while monitoring oil tempera ture q Loosen the hexagonal socket headed plu...

Page 477: ...tative valve PPC circuits of mid link and arm cylinders q For details of hose connections of the long boom PPC circuit see the parts list 1 Mid Link Safety Return Line 2 Boom Safety Return Line 3 Arm...

Page 478: ...ON MANUAL 7 46 POSTURE WHEN LEAVING MACHINE 7 WARNING When leaving the operator s compartment put the machine in the following posture for reasons of safety 1 When leaving the machine for a long time...

Page 479: ...move the machine EXTREMELY SLOWLY and do not slew the machine 3 Make sure the trailer is firmly secured and will not move when the machine approaches 4 Slowly mount the trailer making sure at all tim...

Page 480: ...the transport pin is not already installed install it now REMARK Carry out this operation in reverse when unloading the machine from the trailer TRANSPORTATION demolition digging equipment fitted 7 PR...

Page 481: ...NT FOR TRANSPORT 1 There must be plenty of room available to manoeuvre the machine for removal of work equipment Make sure the oper ations are carried out in a flat level spacious area 2 Fit the trans...

Page 482: ...pins with the spring pins provided 8 Slowly lift the work equipment so that both supports are lifted from the ground APPROACH THE TRAILER 9 Make sure the trailer is firmly secured and will not move w...

Page 483: ...he transporting company to ensure the load is safely stowed DISCONNECT THE EQUIPMENT FROM THE BASE MACHINE 14 Relieve the pressure in the hydraulic circuits by removing the filler cap from the hydraul...

Page 484: ...nd right side of the demolition first boom to allow hydraulic pressure to be applied to the retractable pins 20 Make sure that personnel are clear from the boom release pins and start the engine 21 Op...

Page 485: ...ork equipment make sure that all operators are stand ing well clear of the machine and equipment Removing the High Reach Demolition Equipment from the trailer is achieved by following steps above in t...

Page 486: ...2500kg demolition attachment HIGH REACH DEMOLITION Working ranges Unit HIGH REACH A Maximum working height to pin at arm end mm 23060 B Maximum forward reach mm 12000 C Top pin reach at max height mm...

Page 487: ...ing ranges Unit MEDIUM REACH A Maximum working height to pin at arm end mm 20390 B Maximum forward reach mm 11000 C Minimum swing radius of arm end pin max height mm 4010 D Tail Swing radius mm 3460 E...

Page 488: ...th mm 13520 14020 B Maximum Dumping Height bucket teeth mm 10180 10680 C Maximum Digging Depth bucket teeth mm 4915 5550 D Maximum Vertical Wall Digging Depth mm 4295 4910 E Maximum Digging Reach mm 1...

Page 489: ...eth mm 10730 10845 B Maximum Dumping Height bucket teeth mm 7665 7810 C Maximum Digging Depth bucket teeth mm 6485 7120 D Maximum Vertical Wall Digging Depth mm 5675 6075 E Maximum Digging Reach mm 10...

Page 490: ...0mm x 535mm 4490 kg EQUIPMENT DIGGING BOOM WITH 2 5 M ARM DIGGING BOOM WITH 3 2 M ARM HIGH REACH A TOTAL HEIGHT Incl Hydraulic lines 2625 mm 2600 mm 3265 mm B HEIGHT 2540 mm 2515 mm C LENGTH 8110 mm 8...

Page 491: ...aulically variable gauge track frame adds 105 mm to machine height dimensions PC350LCD 8 PC350NLCD 8 A Overall width of Upper Structure 1 2995 mm B Overall height of Cab with OPG 2 3305 mm B Overall h...

Page 492: ...g less than LC under carriage machine STRAIGHT CURVED PC350LCD NLCD 8 curved position PC350LCD NLCD 8 straight position PC350LCD NLCD 8 curved position PC350LCD NLCD 8 straight position ARM LENGTH MM...

Page 493: ...2 Arm length 3 Boom length 4 Hydraulic pressure 37 3 MPa WORKING CONDITIONS q WITH BUCKET 1014 kg q IF OBJECT HANDLING IS PERFORMED WITH OTHER TOOL INSTALLED THE WEIGHT DIFFER ENCE OF THE TOOL SHOULD...

Page 494: ...3300 7300 4500 9900 6100 14200 8650 3 0 5300 3100 5500 3250 7100 4250 9450 5700 13300 7850 1 5 5200 3050 5400 3150 6900 4100 9050 5350 12650 7300 0 5350 3100 5400 3150 6750 3950 8850 5200 12450 7100 1...

Page 495: ...6600 4050 7450 4600 10050 6250 14300 8750 17200 13050 1 5 6400 3900 7250 4400 9600 5850 13550 8050 11450 11450 0 6500 3900 7050 4250 9300 5600 13050 7650 14200 11550 1 5 6950 4150 7000 4150 9150 5450...

Page 496: ...SPECIFICATIONS HIGH REACH DEMOLITION MANUAL 7 64...

Page 497: ...INDEX 18...

Page 498: ...INDEX 8 2...

Page 499: ...NSTALLING 6 2 PRECAUTIONS WHEN SELECTING 6 2 PRECAUTIONS WHEN USING 6 2 READ THE INSTRUCTION MANUAL THOROUGHLY 6 2 GENERAL VIEW CONTROLS AND GAUGES 7 2 7 59 GENERAL VIEW OF MACHINE 7 2 7 54 7 55 7 56...

Page 500: ...KOMATSU GENUINE OIL 4 14 S SAFETY CRITICAL PARTS 4 16 SAFETY CRITICAL PARTS LIST 4 17 SAFETY INFORMATION 1 3 2 2 2 13 SAFETY LABELS 2 4 7 4 LOCATION OF SAFETY LABELS 2 4 SAFETY MACHINE OPERATION 2 23...

Page 501: ...COLOPHON 18...

Page 502: ...COLOPHON 8 2 PC350 350LC 8 GALEO HYDRAULIC EXCAVATOR Form No UEAM007002 2007 KOMATSU All Rights Reserved Printed in Belgium 07 07...

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