Kobelco SK55SRX-6 Operation Manual Download Page 9

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8.1.6 DISPLAY (LCD)

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8-13

8.2 AIR CONDITIONER

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8-16

8.2.1 GRILLE (AIR OUTLET)

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8-16

8.2.2 AIR CONDITIONER CONTROL PANEL

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8-17

8.2.3 HOW TO USE AIR CONDITIONER

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8-18

8.2.4 PRECAUTION IN USE OF AIR CONDITIONER

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8-18

8.2.5 PRECAUTION IN INSPECTION AND MAINTENANCE OF AIR CONDITIONER

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8-18

8.2.6 INSPECTION & MAINTENANCE CHART

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8-19

8.2.7 INSPECTION AND ADJUSTMENT OF AIR CONDITIONING COMPRESSOR BELT

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8-19

8.2.8 CLEANING AND REPLACEMENT OF AIR CONDITIONER FILTERS

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8-20

8.2.9 CHECKING THE AIR CONDITIONER REFRIGERANT

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8-21

8.3 HANDLING OF RADIO

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8-23

8.3.1 COMPONENTS OF RADIO

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8-23

8.3.2 POWER CONTROL

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8-23

8.3.3 DISPLAY SWITCHING

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8-24

8.3.4 BAND SWITCHING

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8-24

8.3.5 HOW TO SELECT STATION

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8-25

8.3.6 VOLUME CONTROL

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8-28

8.3.7 SOUND CONTROL

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8-29

8.3.8 CLOCK ADJUSTMENT

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8-31

8.3.9 ANTENNA

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8-31

8.4 ROTARY MULTI-CONTROL VALVE

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8-32

8.4.1 HOW TO SWITCH CONTROL PATTERNS

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8-33

8.4.2 AFFIXING CONTROL LEVER PATTERN LABEL

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8-34

8.5 ANGLE DOZER

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8-35

8.5.1 ANGLE DOZER OPERATION

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8-35

8.5.2 GENERAL SPECIFICATIONS

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8-36

8.5.3 INSPECTION & MAINTENANCE CHART

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8-37

8.5.4 MAINTENANCE PROCEDURE

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8-38

8.6 QUICK HITCH

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8-39

8.6.1 PROHIBITED WORKS

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8-39

8.6.2 PRECAUTIONS

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8-39

8.6.3 BASIC COMPONENTS OF THE MACHINE

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8-40

8.6.4 AVAILABLE FRONT ATTACHMENTS

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8-41

8.6.5 REMOVING FRONT ATTACHMENT

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8-42

8.6.6 INSTALLING FRONT ATTACHMENT

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8-43

8.6.7 INSPECTION AND MAINTENANCE

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8-44

8.6.8 WORKING AREA

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8-45

9. TROUBLESHOOTING

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9-1

9.1 GENERAL TROUBLESHOOTING

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9-3

10. SPECIAL PROCEDURES

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10-1

10.1 GENERAL

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10-3

10.2 RELEASING TRAVEL MOTOR BRAKES

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10-4

10.2.1 RELEASING PROCEDURES OF TRAVEL MOTOR BRAKES

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10-4

10.3 OPERATION OF DISABLED MACHINE

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10-5

10.3.1 LOWERING ATTACHMENT OF DISABLED MACHINE

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10-5

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CONTENTS

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Summary of Contents for SK55SRX-6

Page 1: ...OLLOW ALL SAFETY PRECAUTIONS AND INSTRUCTIONS FOUND IN THIS MANUAL BEFORE OPERATING THE MACHINE Destination OCE 2019 12 SK55SRX 6 SK55SRX 6 PS03 05001 PS03010299 Copyright 2019 Kobelco Construction Ma...

Page 3: ...AND OFF THE MACHINE 1 21 1 4 7 INSPECTION AND MAINTENANCE ON THE MACHINE 1 22 1 5 SECURE VISIBILITY 1 24 1 5 1 PRECAUTIONS FOR SECURING VISIBILITY 1 24 1 6 PROHIBITED WORKS 1 25 1 6 1 PROHIBITED WORK...

Page 4: ...C 2 10 2 4 8 QUICK HITCH OPERATION SWITCH 2 11 2 5 HANDLING OF LEVERS AND PEDALS 2 12 2 5 1 LOCATION OF LEVERS AND PEDALS 2 12 2 5 2 PILOT CONTROL SHUT OFF LEVER 2 13 2 5 3 CONTROL LEVER 2 14 2 5 4 TR...

Page 5: ...IONS 3 12 3 4 2 START UP IN COLD CONDITIONS 3 13 3 4 3 USING BOOSTER CABLES 3 14 3 4 4 CONNECTING DISCONNECTING BOOSTER CABLES 3 15 3 5 STOPPING MACHINE ENGINE 3 16 3 6 CHECK AFTER STARTING THE ENGINE...

Page 6: ...NTION OF DUST AND MOISTURE 3 48 3 18 6 PERIODICAL LUBRICATING OPERATION DURING STORAGE 3 48 3 18 7 TREATMENT AFTER LONG TERM STORAGE 3 48 4 MAINTENANCE 4 1 4 1 GENERAL 4 3 4 2 INSPECTING AND MAINTAING...

Page 7: ...CORE AND FILTER 4 56 4 15 500 HOUR 6 MONTH INSPECTION MAINTENANCE PROCEDURES 4 57 4 15 1 REPLACING FUEL FILTER 4 57 4 15 2 REPLACING WATER SEPARATOR 4 58 4 15 3 ENGINE OIL CHANGE 4 59 4 15 4 REPLACIN...

Page 8: ...CAUTIONS FOR IMPURITY AND HYDRAULIC OIL 7 3 7 1 4 PROHIBITED WORK IN USE OF BREAKER 7 3 7 2 SWITCHING SELECTOR VALVE 7 7 7 2 1 SWITCHING PROCEDURES OF SELECTOR VALVE CONVENTIONAL TYPE 7 8 7 2 2 SWITCH...

Page 9: ...ROTARY MULTI CONTROL VALVE 8 32 8 4 1 HOW TO SWITCH CONTROL PATTERNS 8 33 8 4 2 AFFIXING CONTROL LEVER PATTERN LABEL 8 34 8 5 ANGLE DOZER 8 35 8 5 1 ANGLE DOZER OPERATION 8 35 8 5 2 GENERAL SPECIFICA...

Page 13: ...s these techniques and perfects them with an actual machine Some figures may be different from the actual machine Along with our technical improvements manuals are periodically updated to reflect thes...

Page 14: ...rvance of elementary safety rules and precautions Many accidents can be avoided if the causes are known and proper cautions are taken beforehand No matter how devices and protections are advanced many...

Page 15: ...ad operations may speed up decline of functions and shorten the service life of the machine Break in the machine in three stages listed to the right until every part gets broken in Hour Meter Less tha...

Page 16: ...ur KOBELCO authorized dealer for inspection for damages of the canopy cab caused by fire corrosion collision or others The all damaged parts shall be restored by using the genuine parts For structural...

Page 17: ...hich the machine serial number and engine serial number are stamped Write them down in the following blanks MACHINE TYPE MACHINE SERIAL No ENGINE SERIAL No HOUR METER MODEL DISPLACEMENT 0000287 02 ENG...

Page 21: ...ly to supplement safety codes insurance requirements local laws rules and regulations 3 It is very difficult to forecast every danger that may occur during operation However safety can be ensured by f...

Page 22: ...uctions or procedures which if not correctly followed may result in severe machine damage 1 SAFETY PRECAUTIONS 1 4 Copyright 2019 Kobelco Construction Machinery Co Ltd All rights reserved S2PS00017ZE0...

Page 23: ...operator s compartment Remove the key from the starter switch 4 If possible make all repairs after parking the machine on the firm and level ground Block the machine so it does not roll while working...

Page 24: ...l lines tubes and hoses can cause a fire Do not bend or strike high pressure lines Do not install parts which are bent or struck with something Inspect lines tubes and hoses carefully Do not check for...

Page 25: ...sed in these components is usually sealed in resin or by other ways Normal handling is not hazardous as long as the dust containing asbestos is not generated in the air If the dust containing asbestos...

Page 26: ...ily read If words or illustrations are illegible clean off the dirt Use a cloth water and detergent to clean the warning labels Never use organic solvents or gasoline If warning labels are damaged mis...

Page 27: ...BB SHOW BACKSIDE OF COVER SECTION CC SECTION BB FOR CAB DETAIL cc DETAIL bb DETAIL aa DETAIL dd FOR CANOPY 19 25 26 27 28 28 27 DETAIL ee DETAIL ff VIEW I 29 9 1 SAFETY PRECAUTIONS 1 1 9 Copyright 201...

Page 28: ...out position and all control levers are in neutral Sound horn to alert people Ensure bystanders and obstacles are clear of machine before moving machine or its attachments Do not carry riders on machi...

Page 29: ...TANK Location Side of hydraulic oil tank Part number YT20T01414P1 YT20T01414P1 7 HANDLING THE BATTERY Location Seat stand cover Part number PS20T01042P1 Read this manual to handle the battery properl...

Page 30: ...ure Before opening radiator cap Cool down engine completely Cover radiator with cloth rag Looser cap slowly to relieve pressure 11 STOP ENGINE BEFORE SERVICING Location Guard Part number PX20T01165P1...

Page 31: ...5 ATTACHMENT WORKING Location Left and right sides of arm Part number PE20T01012P1 Getting hit by the operating machine may cause personal injury Do not get close to the machine PE20T01012P1 16 SEAT B...

Page 32: ...t number YN20T01039P1 This machine equipped with a rotary multi control valve which allows changing of operating lever control patterns Operating this machine before checking function of each control...

Page 33: ...ROTARY MULTI CONTROL VALVE OPTION Location Cover Part number YT20T01406P1 DANGER 23 AVOID BEING BURNED OPTION Location Cooler hose Part number PY20T01192P1 PY20T01192P1 1 SAFETY PRECAUTIONS 1 1 15 Cop...

Page 34: ...IBBLER AND BREAKER OPERATION Location Seat stand cover canopy right side of cab cab Part number PY20T01062P1 26 NIBBLER AND BREAKER OPERATION OPTION Location Seat stand cover canopy right side of cab...

Page 35: ...QUICK HITCH OPERATION SWITCH Location Right side of cab Part number PS20T01082P1 This symbol means an unacceptable sample or unsafe condition 29 DO NOT USE COUNTERWEIGHT FOR LIFTING Location Counterw...

Page 36: ...dslides may occur Put up barricades to make the working site off limits to the public Especially for operations on a road place the signal person or provide barricades to ensure safety of passing cars...

Page 37: ...and channel and have telephone numbers of people working together Determine the storage location of the first aid kit Inspect it regularly and replenish its contents as required PROTECTIVE DEVICES Che...

Page 38: ...in a designated store house or place where only authorized personnel can go in After refilling and refilling oil wipe off spilled fuel and or oil immediately Remove flammables in the site before carr...

Page 39: ...installation parts of the steps and hand rails and if damaged and loose bolts and nuts are found repair them Remove slippery materials such as grease oil and mud from the steps and hand rails if adhes...

Page 40: ...nction or fire Never clean inside of the operator s compartment and the electrical components such as sensors and connectors with pressurized water or steam KEEP THE AREA AROUND THE OPERATOR S SEAT CL...

Page 41: ...ition may cause an unexpected accident or failure If you detect any abnormality during operation immediately stop the machine and repair it 1 SAFETY PRECAUTIONS 1 1 23 Copyright 2019 Kobelco Construct...

Page 42: ...disturbed by the equipment attachment Place the signal person in case of poor visibility to direct the operator with his her directions signals and signs Place the only one signal person at the workin...

Page 43: ...rts and could cause severe damage to them Never apply travel force to leveling the ground It could result in damage to the machine DO NOT PERFORM HAMMERING OPERATIONS WITH THE BUCKET Never use the buc...

Page 44: ...not operate the bucket to the stroke end of the bucket in position in order to generate impact to remove dirt It may cause damage to the equipment attachment and cylinders DO NOT LIFT UP THE MACHINE...

Page 45: ...ECAUTIONS OF STARTING THE ENGINE Move the pilot control shut off lever to the LOCKED position Be sure to start the engine from the operator s seat Sound the horn before starting the engine to alert su...

Page 46: ...re shown to the right Raise the boom if the right hand side visibility is disturbed Abrupt operations of the control lever and pedal are not allowed Travel slowly on rough terrain Do not go over obsta...

Page 47: ...e before starting operation Place the signal person at the dangerous area or poor visibility area 1 7 3 PRECAUTIONS OF OPERATIION CONTROL PATTERNS OF THE CONTROL LEVERS Before operation be sure to pay...

Page 48: ...t when operating the arm in or bucket in for travel transport position DOZER COLLISION Be careful not to strike the dozer against large rocks etc It may cause a premature damage of the dozer or cylind...

Page 49: ...gas lines check with the local utility companies perform test digging confirm their existence location and carefully carry out the operation RESTRICTED WORKING SITE Use extreme caution not to hit the...

Page 50: ...the machine from falling off LIFTING WORK This machine is designed for the application of digging loading and leveling using the bucket Furthermore some machines are designed in consideration of work...

Page 51: ...rking site WORKING SITE IN URBAN AREA Unauthorized personnel in the working site may cause danger Put off limits signs at the working site And if the working site is in the busy traffic area place the...

Page 52: ...or unexpected movement at the time of coming start if the machine is not parked properly Park the machine following the safety parking procedure shown below Find the level ground when parking If you...

Page 53: ...and maintaining the machine at a messy working site may cause personnel to fall down or personal injury by debris Remove obstacles grease oil paint debris etc from the working site and put things in...

Page 54: ...ernal pressure always exists in the hydraulic circuit Do not refill drain the fuel inspect or maintain the machine before the internal pressure becomes zero High pressure hydraulic oil from even a pin...

Page 55: ...el should be prohibited INSPECTION MAINTENANCE IN HIGH PLACES Do not get close to the edge to avoid falling Put things in order around steps before inspection and maintenance in a high place Avoid spi...

Page 56: ...ove paint from any surface to be welded to avoid generating poisonous gas Always wear protective gears appropriate for welding Perform work in a well ventilated areas Clear flammable materials and pro...

Page 57: ...neration of flammable steam or gas and result in a fire or severe burns Do not heat the section close to the tube and hose contained pressurized oil or other flammable items by welding soldering and t...

Page 58: ...confirmed PROPER WASTE LIQUID For environment protection contact the local government or public service company to ask proper disposal methods or request for disposal of the waste Put waste liquid in...

Page 59: ...explosion heat it up until the battery temperature becomes 16 degrees C or higher Do not use or charge the battery of which the battery electrolyte level is lower than the lower limit This might caus...

Page 60: ...machine 4 Connect the clip from the other end of the positive booster cable red to the positive terminal on the battery of boost machine 5 Connect the booster cable black clip to the negative termina...

Page 61: ...wisted or damaged wire rope which may result in break Never tow the machine on a slope Never climb onto the towing wire rope Never stand between the towing machine and the machine or thing being towed...

Page 62: ...a fire near it or throw it into a fire Do not perform drilling welding or gas cutting on it Do not shock it by striking or rolling it The charged gas must be removed before disposal Contact our autho...

Page 65: ...ve 16 Guard 28 Boom cylinder 5 Hydraulic oil tank 17 Engine hood 29 Boom 6 Fuel tank 18 Counterweight 30 Arm cylinder 7 Swing motor 19 Swing bearing 31 Arm 8 Swivel joint 20 Rubber track shoe 32 Bucke...

Page 66: ...vel lever 15 Engine throttle lever 6 Left travel pedal 16 Travel speed select switch 7 Right travel pedal 17 Working light switch 8 Boom swing foot pedal 18 Deceleration switch 9 Dozer control lever 1...

Page 67: ...gine coolant temperature lamp 5 Battery charge lamp 6 Fuel level lamp C 7 Travel in HIGH 2nd speed lamp 2 3 1 ENGINE COOLANT TEMPERATURE METER This indicates the temperature of the engine coolant The...

Page 68: ...a while it means that the battery is not properly charged In that case inspect the charging system See CHECKING AND MAINTAINING BATTERY in Chapter 4 2 3 5 ENGINE COOLANT TEMPERATURE LAMP LIT IN RED T...

Page 69: ...GH 2nd The travel speed select switch is located on the grip of the right travel lever When you turn the starter switch OFF the travel speed is changed back to LOW 1st 2 MACHINE FAMILIARIZATION 2 2 7...

Page 70: ...uld be in this position START To start the engine turn the starter key to the START position After the engine is started release the starter key The starter key will return to the ON position by itsel...

Page 71: ...ow place or when powerful tractive force is required Set to HIGH rabbit when traveling on the level and firm ground For travel speed see Chapter 6 GENERAL SPECIFICATIONS 2 4 3 WORKING LIGHT SWITCH Thi...

Page 72: ...ration function You can reduce the fuel consumption and noise while waiting for a dump truck or workers Turning the starter switch OFF from ON automatically turns off the deceleration function 2 4 7 W...

Page 73: ...to allow locking or unlocking the quick hitch to be possible UNLOCK UNLOCK LOCK LOCK 1 The alarm sound will not stop until the quick hitch operation switch is set to the LOCK side For detailed operati...

Page 74: ...ver 2 Operator Control Levers 3 Travel Levers 4 Engine Throttle Lever 5 Dozer Control Lever 6 Boom Swing Foot Pedal 7 Optional Pedal Breaker Nibbler 2 5 4 2 6 3 7 1 2 MACHINE FAMILIARIZATION 2 12 Copy...

Page 75: ...control shut off lever to the LOCKED position securely or it may not be locked Make sure that the pilot control shut off lever is held to the LOCKED position shown in the figure below When unlocking...

Page 76: ...ations of boom arm bucket swinging and traveling by this machine conform to the ISO lever pattern As for operation methods of other operational control devices refer and check other paragraphs in this...

Page 77: ...The manual levers and travel pedals are used for the travel operation of this machine Use these travel levers to switch the travel direction forward or backward a Forward Push travel levers toward fr...

Page 78: ...e S position The S mode focuses on the low fuel consumption operation C H High idling The position where the lever is fully pulled backward From the S mode position pull the lever to the right and the...

Page 79: ...not apply concentrated or offset load on the dozer Be sure to avoid collisions during traveling because they can damage the dozer and travel system 3 When using this dozer to lift up the machine make...

Page 80: ...ch the unlocked pedal accidentally it may cause severe accident A Right swing Depress the right side B Left swing Depress the left side A B A B 1 To lock the pedal pull down cover 1 above the pedal to...

Page 81: ...required it may be due to a failure in the electrical system Please contact our authorized dealer distributor Make sure the starter switch is in the OFF position when replacing fuses The main fuse bo...

Page 82: ...5A Room lamp 4 15A Air conditioner 13 30A Engine stop solenoid 5 5A Travel alarm 14 10A Sequence valve 6 5A Lever lock 15 10A Hand control solenoid 7 5A Rotating beacon 16 10A Socket radio 8 10A Trav...

Page 83: ...rical components and wiring from burn out due to excess current In case the starter does not work when the starter switch is turned ON disconnection of the fusible link is suspected Check and replace...

Page 84: ...bolts if required Change the seat belt every three years even if there is no abnormality in the appearance The manufacturing date is woven into the back side of the belt 2 8 1 HOW TO FASTEN SEAT BELT...

Page 85: ...otect from vibration it is important to set the suspension according to your own weight There are five weight adjustment levels to select from Pull up and slide the handle 1 horizontally release it in...

Page 86: ...d door is fixed 2 To close the door push down lever 2 on the left side of the operator s seat to release the catch 3 When necessary to fix the door fix door to the catch securely 2 1 In operation lock...

Page 87: ...hand between windows open and close the front window slowly It is dangerous to work with the front window not or incompletely locked Confirm that the front window is surely locked 1 Park the machine...

Page 88: ...frame 6 5 5 2 10 5 OPENING CLOSING WINDOW ON RIGHT SIDE 1 Release lock 1 to open the window 2 Move lock 1 to the LOCKED position to close the window 1 2 10 6 CAB ROOM LAMP Operate the switch in accord...

Page 89: ...ed break the front window glass by using life hammer 1 placed on the right rear of the cab 3 If the front window is unavailable to escape break the rear window glass by using life hammer 1 1 2 Rear Wi...

Page 90: ...ECESSARY TOOL in Chapter 4 2 12 2 GREASE GUN HOLDER The grease gun holder is located on the next to the hydraulic oil tank on the right rear of the machine When the gun is not used put it on this hold...

Page 91: ...t fully inserted it may be broken HOW TO UNLOCK AND OPEN GUARD 1 Insert the starter key into the keyway 2 Turn the starter key counterclockwise and pull the door handle to open the door 3 If the door...

Page 92: ...key clockwise the lock is released and you can open the side cover When you close the side cover it is automatically locked 2 MACHINE FAMILIARIZATION 2 30 Copyright 2019 Kobelco Construction Machinery...

Page 95: ...Check the engine for any oil fuel or coolant leakage Repair as required Check the area around the engine and radiator for any accumulated material and remove as required Check the hydraulic device hyd...

Page 96: ...tor for assistance 1 Coolant water reserve tank 1 is located on the right rear side of the machine 2 Open the engine hood with the starter key and check that the coolant level falls within the range o...

Page 97: ...auge 1 and wipe oil with a clean cloth Then insert and pull out it again If the oil level falls within the range of H Upper Limit L Lower Limit on the oil level gauge it is normal If the oil is contam...

Page 98: ...cap 3 of the fuel tank 3 Refill the fuel tank with the fuel through the filler port For fuel capacity to use see LUBRICANT FUEL COOLANT SPECIFICATIONS in Chapter 4 4 When dirt is adhered on strainer 4...

Page 99: ...Select the firm and level ground and place the machine in the hydraulic oil inspection position shown to the right and then stop the engine 1 Bucket 2 Dozer 2 Check the oil level through the sight lev...

Page 100: ...he center of the belt with your thumb If the deflection falls within the range shown in the table it is normal For inspection and adjustment procedure for each belt see 250 HOUR 3 MONTH INSPECTION MAI...

Page 101: ...ves 1 If the filter is extremely dirty cooling performance is decreased Clean it referring to CLEANING RADIATOR OIL COOLER CORE AND FILTER in Section 250 HOUR 3 MONTH INSPECTION MAINTENANCE PROCEDURES...

Page 102: ...mp operates as shown in the table below it works properly at each position 4 If any warning or display lamp does not operate properly the engine or electrical circuit components may be broken Stop usi...

Page 103: ...lights on the boom and on the left side of the front cab only If they do not light presumably light bulbs are burned out or electrical wire is broken Contact our authorized dealer distributor for repa...

Page 104: ...RMAL CONDITIONS 1 Make sure the pilot control shut off lever 1 is in the LOCKED position A 2 Make sure all control levers and pedals are set to their NEUTRAL positions 3 Move engine throttle lever 2 t...

Page 105: ...econds the engine can be started more easily 3 Turn starter switch 1 to the START position to start the engine 4 When the engine starts release the hand from starter switch 1 The starter key will retu...

Page 106: ...ooster cable to a ground surface as far as possible from the battery If the battery electrolyte is frozen do not attempt to start the the engine with another power supply 1 2 1 Battery 2 Bolt Use the...

Page 107: ...positive terminal on the battery of the disabled machine 4 Connect the booster cable red clip to the positive terminal on the battery of the boost machine 5 Connect the booster cable black clip to the...

Page 108: ...nt on the ground before stopping the engine 2 Place the pilot control shut off lever in the LOCKED position 3 Move engine throttle lever 1 back to the low idling position to idle the engine for about...

Page 109: ...enance or repair is necessary be sure to stop the engine and put the warning tags DO NOT START ENGINE DO NOT OPERATE or UNDER INSPECTION MAINTENANCE on noticeable places Never apply an excessive load...

Page 110: ...a severe damage Check the source and cause of the abnormal sound to repair it 3 Do not operate in a speed generating the sympathetic vibration Vibration may abruptly become large by resonance at a cer...

Page 111: ...ot operated and swing and travel operations are not performed when the safety control lever is in the LOCKED position LOCKED UNLOCKED If any improper operation is found stop the engine immediately Con...

Page 112: ...rature is unavoidable 1 Middle speed position 2 LEVER UNLOCK DOWN BUCKET OUT BUCKET IN 1 Move engine throttle lever 1 to the middle speed position to accelerate the engine speed 2 Make sure that the p...

Page 113: ...top the engine and move the pilot control shut off lever to the LOCKED position 2 Open the cover at the front of the machine to access rotary multi control valve 1 3 Remove wing bolt 2 and switch leve...

Page 114: ...trol pattern label with the one matching the actual machine movement or change the lever pattern by the rotary multi control valve to match the control pattern label The control pattern labels are mag...

Page 115: ...d in the position where they are Right Control Lever 5 Arm out 6 Arm in 7 Bucket in 8 Bucket out N Neutral Arm and bucket are held in the position where they are 3 5 4 6 2 2 1 1 5 3 6 4 7 7 8 8 3 MACH...

Page 116: ...in operation stop the machine immediately and investigate the cause of abnormality to take proper measures Forward Reverse Travel 1 Move the pilot control shut off lever to UNLOCKED position A and kee...

Page 117: ...RWARD Spin turn 3 9 2 CHANGING TRAVEL LOW 1ST HIGH 2ND SPEED 1 Take the travel position while the engine is running and press the travel speed select switch Display lamp 1 is lit 2 Use the travel leve...

Page 118: ...urn the right and left travel levers to the neutral position The machine stops traveling Do not stop the machine suddenly but stop it after slow traveling as much as possible STOP STOP STOP STOP Stopp...

Page 119: ...e strength of bridges and shoulders and strengthen them if necessary 4 Be careful not to touch a bridge beam and electrical power line 5 Traveling on a rough road has a great impact on the machine Red...

Page 120: ...nd chock the crawler tracks Downward slope Upward slope 1 2 3 1 The maximum gradability of this machine is 58 30 degrees 2 Operate the travel levers slowly when going downhill 3 Use the LOW 1st speed...

Page 121: ...m of a river is flat and it flows slowly the machine can travel in the water up to the depth of upper roller A 2 When crossing a river use the bucket to check the bottom of the river carefully Never e...

Page 122: ...Soft Ground Operate the machine at the operator s seat Do not permit for people to gain access to the machine When both sides of the crawlers get caught in the mud and the machine does not move due t...

Page 123: ...the pilot control shut off lever to the UNLOCKED position 2 Raise the bucket to a proper height from the ground 3 Operate left control lever 1 to swing the machine 4 While you are not swinging the mac...

Page 124: ...0 to 110 degrees 3 Point the bucket teeth tips in the digging direction A as much as possible and dig using the bucket at shallow depth B and with full stroke This will reduce the digging resistance a...

Page 125: ...nching and place the crawlers parallel to the trench to dig When digging a wide trench dig both sides of it first and dig the center last 3 10 4 DOZING WORK 1 For back filling and leveling work after...

Page 126: ...akes the boom swing to the left right allowing you to perform the side ditch digging in a narrow place Depress the left and right side of the pedal to swing the boom to the left and right respectively...

Page 127: ...4 Use the control lever to swing the machine During swing pay attention to the interference with the attachment Minimum Swing Radius with Boom Swing Canopy Cab Minimum swing radius with boom swing in...

Page 128: ...o avoid any unexpected machine movement being caused by touching levers and stop the engine 1 2 3 6 4 5 1 Put both travel levers 4 in the NEUTRAL position 2 Move engine throttle lever 5 to the low idl...

Page 129: ...k to the maximum 2 If there is any abnormality in the engine coolant temperature or engine oil pressure lamp move the machine to a safe place and stop the engine immediately Then repair the machine ac...

Page 130: ...efill the fuel tank to the maximum Refill the fuel tank to the maximum after finishing work for a day Be careful not to supply with fuel to a level more than necessary to the top end of tank There is...

Page 131: ...ch as oil deterioration and seal adhesive 1 2 3 1 1 1 After an emergency stop set the safety control lever to the LOCKED position 2 If you made an emergency stop without putting the attachment or buck...

Page 132: ...ure to lock the following Right side cover Auto lock Engine hood Cab door Cab specification 3 MACHINE OPERATION 3 40 Copyright 2019 Kobelco Construction Machinery Co Ltd All rights reserved S2PS00017Z...

Page 133: ...e Large traction force Rubber belt Iron shoe Excellent Good Ordinary Comparison between rubber and iron crawler belt 3 16 2 WARRANTY ON RUBBER TRACK SHOE Our warranty does not cover damage caused by p...

Page 134: ...see PRECAUTIONS FOR LONG TERM STORAGE in Chapter 3 6 If you move the machine with one crawler while the other is raised by the attachment the rubber track shoe may come off or be damaged TRAVEL 3 16 4...

Page 135: ...es C because of physical properties of rubber Use the rubber track shoes with a proper tension to prevent them from coming off If the tension is loose it causes coming off of rubber track shoes under...

Page 136: ...k shoes Travel with the both sides on the same flat surface 12 Do not turn with a position as shown in the figure It causes coming off or damage of the rubber track shoes 3 MACHINE OPERATION 3 44 Copy...

Page 137: ...battery capacity may decrease and the battery electrolyte may freeze Keep the charging rate close to 100 as much as possible and pay full attention to thermal insulation by covering the battery The ch...

Page 138: ...cularly use extreme caution on the operator s seat section where the electric parts relays and fuses are mounted 3 17 4 OPERATION IN SANDY AND DUSTY AREAS HANDLING OF AIR CLEANER IN SANDY AND DUSTY AR...

Page 139: ...ile the machine is not in use Use extreme caution when starting to use the machine at the next time Apply a sufficient quantity of anti rust oil to any parts which rust easily especially to the expose...

Page 140: ...oil level and coolant level before starting the engine Refill engine oil or coolant if its level is low Wipe off the rust preventive oil from the cylinder rods After the lubricating operation apply th...

Page 143: ...ter If the hour meter reading is roughly in accordance with the calendar day and if you would like to schedule them based on the calendar day take whichever comes first For items which do not have a c...

Page 144: ...ydraulic system contamination when machine is clean CHECK THE HOUR METER Read the hour meter every day to check for items which get to the next inspection and maintenance time STOP THE ENGINE BEFORE I...

Page 145: ...als mixed Contact the person in charge and take appropriate measures if any foreign materials are found HANDLING OF WASTE OIL AND ANTIFREEZE Be sure to drain waste oil and antifreeze in containers and...

Page 146: ...ert your fingers hands or arm into it Align the pin with a bore visually IN DUSTY WORKING SITE Pay attention to the followings in dusty sites Check the air cleaner for clogging Clean the air cleaner e...

Page 147: ...3 SAE 5W 30 SAE 5W 30 SAE 10W 30 SAE 10W 30 SAE 30 SAE 30 SAE 40 SAE 40 SAE 5W 30 SAE 10W 30 SAE 30 SAE 40 A P I CD CF CF 4 CL 4 ACEA E 3 E 4 E 5 JASO DH 1 SAE 5W 30 SAE 5W 30 SAE 10W 30 SAE 10W 30 S...

Page 148: ...g system Our genuine antifreeze coolant is specified for all machines operating in all regions including areas where low temperatures or freezing is not normally expected BIO DEGRADABLE OILS USE OF BI...

Page 149: ...very 1000 hours Every 1000 hours replacement is just a guideline If the machine is operated in very dusty conditions replace the element earlier Air cleaner PS11P00007S003 Element 1 Replace every 6 ti...

Page 150: ...00 cc 24 4 cu in TOOL CASE PW01T01005P1 WRENCH YJ23H00001P1 For engine oil filter WRENCH PW01T01006P1 For fuel filter PIPE PM01T01003P1 For grease fitting of idler adjuster 4 MAINTENANCE 4 10 Copyrigh...

Page 151: ...llow the table in the next page when tightening or retightening bolts or nuts The tightening torque for plastic covers is different from the torque values in the table Contact our authorized dealer di...

Page 152: ...1 6 5 74 5 6 9 55 0 5 1 191 20 141 15 161 16 119 12 343 39 253 29 284 29 209 21 M18 P 2 5 122 12 90 0 8 9 103 10 75 8 7 2 265 29 195 21 226 20 167 15 481 49 355 36 402 39 297 29 M20 P 2 5 172 17 127 1...

Page 153: ...129 13 95 2 9 6 M16 P 1 5 92 2 8 8 68 0 6 5 77 5 7 8 57 2 5 8 196 20 145 15 169 17 125 13 363 39 268 29 304 29 224 21 M20 P 1 5 186 19 137 14 155 16 114 12 402 39 297 29 333 29 246 21 726 69 535 51 6...

Page 154: ...o 363 Joints for piping Screw diameter PF Wrench mm Tightening torque N m lbf ft 1 8 14 15 to 19 11 to 13 1 4 19 34 to 38 26 to 28 3 8 22 69 to 79 50 to 58 1 2 27 98 2 to 117 8 73 to 87 3 4 36 152 2 t...

Page 155: ...1 Hose 2 Union nut 3 Connector 4 O ring A Crimping surface of O ring A 4 4 4 2 3 1 O RING SEAL JOINT O RING PART 1 Be sure to replace the O ring with a new one at reassembly 2 If oil leakage occurs du...

Page 156: ...ts and around them of the hoses pipes and other hydraulic components remove and dry the cleaning solvent completely before connecting these parts Wipe away all grease on the screw parts before assembl...

Page 157: ...igure 2 For the hydraulic pilot type move the control lever for the circuit to release the inner pressure immediately before stopping the engine with low idle Hydraulic Oil Inspection Position Inner p...

Page 158: ...tment Engine 1 2 Item Interval When required Start up inspection Weekly 50H Every 3 months 250H Every 6 months 500H Every year 1000H 1500H 2000H 5000H Oil replacement part 2 Procedure described in Eng...

Page 159: ...Every year 1000H 1500H 2000H 5000H Oil replacement part 2 Procedure described in Hydraulic system Item Interval When required Start up inspection Weekly 50H Every 3 months 250H Every 6 months 500H Eve...

Page 160: ...0H 2000H 5000H Oil replacement part 2 Procedure described in Greasing pins Boom arm bucket cylinder EPG lithium added extreme pressure grease 4 12 6 Dozer cylinder 4 14 6 Replacing bucket 4 11 3 Adjus...

Page 161: ...ent part 2 Procedure described in Visually inspecting machine for deformation and damage 4 12 1 Inspecting for loose or missing bolts and nuts 4 12 2 Control lever Inspection 4 11 7 Greasing EPG lithi...

Page 162: ...luid reservoir is located on the left rear side in the cab 1 Check washer fluid reservoir 1 for the washer fluid level 2 When the washer fluid level is low remove cap 2 and make up the washer fluid 1...

Page 163: ...to touch the glass part with fingers ATTACHMENT MOUNTING PART 1 Remove screw 1 4 pieces and remove rim 2 and lens part 3 from housing 4 2 Remove spring 6 that fixes socket 5 3 Remove lamp 7 from socke...

Page 164: ...e bucket bottom on the level ground and stabilize it at the position where the load is not applied on the pins of bucket and arm 2 Move O rings 1 from the specified position to the bucket boss 3 Remov...

Page 165: ...the pin bores of bucket 6 and arm 7 with each other and then insert pin 5 5 Insert pin 3 and install retaining ring 2 Fit O ring 1 in place 6 Apply grease to the grease nipples for each pin until the...

Page 166: ...s or cracks should be replaced before adapter 1 begins to be worn A side cutter with severe wear should be replaced soon after it is found If the replacement is delayed the body of the bucket will be...

Page 167: ...4 Be careful not to break rubber lock pin 3 3 Inspect locking pin 4 and rubber lock pin 3 If locking pin 4 is too short or rubber lock pin 3 is in poor condition as shown to the right replace it with...

Page 168: ...hen replacing the side cutters replace the bolts and nuts with new ones Tightening torque 249 6 to 308 4 N m 184 to 227 lbf ft 3 After tightening the nuts spot weld them SAFETY BLOCK SAFETY BLOCK If t...

Page 169: ...with new ones 2 When lugs are worn and steel cord 1 inside the shoe is exposed across two links or more replace the shoe with a new one 1 A BREAK OF STEEL CORD If lugs are worn and more than half of o...

Page 170: ...detachment of core metals 1 Lower roller 2 Core metal 3 Rubber 4 Canvas 5 Steel cord A Damage due to interference 3 5 4 2 A 1 Our warranty does not cover damage caused by prohibited use of the rubber...

Page 171: ...he rubber track shoe can easily cause detachment of core metals See HANDLING OF RUBBER TRACK SHOE STANDARD in Chapter 3 to understand the prohibitions on use of the rubber track shoe 4 MAINTENANCE 4 4...

Page 172: ...lly with your face kept away from around the grease nipple The grease nipple can pop out due to the inner high pressure Loosen it gradually within one turn Make sure that the grease inside the grease...

Page 173: ...f the grease cylinder slowly to drain the grease 4 Loosen grease nipple 1 gradually within one turn at most 1 5 Put in iron pipes along the rubber track shoe and slowly rotate the sprocket in the reve...

Page 174: ...direction again to place the rubber track shoe on the idler securely 1 Iron pipe A Rotation direction 1 A 6 Stop the rotation and check that the rubber track shoe is securely placed on the sprocket id...

Page 175: ...tion 2 1 REMOVING BOOT 1 Insert a flat head screwdriver between boot 3 and plastic cover 4 to release four clicks one by one 2 After applying the grease install plastic cover 4 and boot 3 4 3 Insert f...

Page 176: ...ystem Otherwise an unintentional short circuit may occur and result in a fire Check the electrical wiring for breaking or signs of short circuit the fuses for damage and the terminal connections for l...

Page 177: ...CKING MACHINE FOR DEFORMATION AND DAMAGE Even if deformation of a guard or cover does not seem to be a severe damage from appearance it may interfere with internal horses and parts Contact our authori...

Page 178: ...tions are observed immediately park the machine at a safe place and stop the engine 1 Move the pilot control shut off lever to the LOCKED position and then stop the engine 2 When checking for the leak...

Page 179: ...attaching bolts 3 Check for abnormal sound while traveling the machine slowly in a wide area 1 Travel motor 2 Sprocket 3 Lower roller 4 Track shoe 5 Upper roller 6 Idler 6 5 4 3 2 1 If abnormal wear...

Page 180: ...sition and then stop the engine 2 Open the engine hood and raise cock 2 of the water separator to Close position C 3 Tighten the drain cock 3 and drain the accumulated water to a container If the wate...

Page 181: ...amaged nipples with new ones 3 Use the grease gun to apply grease to the grease nipples 4 After applying grease wipe off old grease which is pushed out 1 2 4 3 5 7 8 9 6 12 10 11 14 13 15 No Parts to...

Page 182: ...in the battery is splashed onto the skin or into the the eyes it causes burns or blindness At such case immediately wash the skin or eyes with sufficient clean water and ask a doctor to treat it as so...

Page 183: ...eed does not rise at start up and the engine fails to start measure the specific gravity of the battery electrolyte If it is lower than the specified specific gravity auxiliary charge is required Stan...

Page 184: ...n be opened place the bucket on the ground stop the engine and move the pilot control shut off lever to the LOCKED position 2 Place an empty container under drain valve 1 to catch the discharged fuel...

Page 185: ...eck the track shoe It is dangerous for the machine to fallunintentionally when checking it Never operate the machine during the checking RUBBER TRACK SHOE The wear status varies depending on the work...

Page 186: ...with loosen track shoes causes coming off or early wear of them Adjustment It is necessary to adjust the track shoe tension depending on the work condition at the working site At the working site cove...

Page 187: ...ase Nipple 2 Grease Cylinder A Grease Injection B Pressure 3 Check the track shoes tension again and repeat the adjustment for a proper tension as needed If the tension is still loose after pressing s...

Page 188: ...move the machine track shoe forward and backward 3 Tighten grease nipple 1 Tightening Torque 58 8 to 88 2 N m 43 4 to 65 0 lbf ft In order to check that the tensions is proper travel the machine forwa...

Page 189: ...efore inspection and maintenance Inspecting and maintaining the running engine may cause injury by being caught in the cooling fan or fan belts Check the belt for insufficient tension wear and damage...

Page 190: ...adjust the fan belt to the specified tension and tighten attaching nut 2 and adjusting bolt 3 4 Adjust the fan belt to the specified tension by using adjusting bolt 4 and then tighten mounting nut 2...

Page 191: ...nsion of belt in use Pushing force Fan 8 to 12 mm 0 32 to 0 47 inch 10 to 14 mm 0 39 to 0 55 inch 98 N 22 lbf Belt in use refers to the belt that has been used for five or more minutes since it is att...

Page 192: ...temperature Stop the engine before removing the radiator cap Allow enough time for the coolant to cool down before removing the radiator cap 1 Loosen radiator cap 1 slowly After checking that the pres...

Page 193: ...d dust or dirt blow compressed air 0 7 MPa or less up and down along the folds on the inside and outside of element 1 5 After cleaning check element 1 for thinned spots pin holes and damage on the pac...

Page 194: ...TOP mark facing upward 1 2 3 Be careful when attaching the O ring If water enters inside an engine failure occurs For machines with double element specifications do not clean and reuse the inner eleme...

Page 195: ...ait for 15 to 20 seconds to send oil to the fuel system using the fuel supply pump If the entire piping is emptied due to running out of gas wait for 60 seconds after turning the starter key to the ON...

Page 196: ...ry day Grease the attachment before the work if it has not been used for one month or longer 1 Set the attachment in the greasing position and then stop the engine 2 Before greasing wipe off the greas...

Page 197: ...t may cause burns 1 After the radiator cap has cooled enough to touch with bare hands remove cap 1 Loosen cap 1 slowly to release the pressure then push cap 1 down and loosen it to remove it 2 Inspect...

Page 198: ...Open the side cover on the right side of the machine and remove the undercover 2 Pull up stopper 2 to release the lock and pull out filter 1 3 Clean filter 1 with compressed air 0 2 MPa or water 4 Ch...

Page 199: ...Replace it by the set 1 Stop the engine and open the engine hood 2 By using the fuel filter wrench turn filter cartridge 1 to the left A to remove it 3 Wipe the sealing surface of the filter base with...

Page 200: ...ring 8 with a new one Install element 6 to the body of the water separator 7 Attach O ring 8 to case 5 and tighten it with ring 9 8 Lower cock 2 to Open D 9 After draining be sure to follow BLEEDING...

Page 201: ...lashed by the oil Clean up any oil around the engine 4 Check the drain oil and if many metallic powder or foreign materials are contained contact our authorized dealer distributor 5 After the oil is f...

Page 202: ...filter cartridge 1 to the left to remove it 3 Wipe the sealing surface of the filter base with a clean cloth to prevent dust and foreign materials from being seized 4 Apply a thin film of clean engine...

Page 203: ...surized and it is very dangerous Before removing the return filter stop the engine and then press the valve head on top of the breather cap to release the pressure in the hydraulic oil tank Wait for t...

Page 204: ...ove spring 3 valve 4 and element assy A from the tank 7 Replace O ring 5 on the mounting surface of cover 2 8 Clean the removed parts with light oil 9 Attach the element by the reverse procedures of t...

Page 205: ...ckwise direction remove the cover and then remove element 4 6 Install new element 4 and install cover 3 along the groove 7 Be sure to prevent water and dirt from entering the air intake and exhaust be...

Page 206: ...e abnormal exhaust color and noise generation etc 4 16 4 CHECKING AND ADJUSTING STARTER AND GENERATOR There is the possibility that the brush is worn or the bearing is out of grease Adjust the starter...

Page 207: ...Adjusting and Cleaning Fuel Injection Valves If the exhaust color is not good during operation and the engine output is lower than before it may be caused by bad injection condition of the fuel inject...

Page 208: ...L 0 26 gal or more Replace the engine oil after 500 hours of operation for the first time 1 Position the machine directing drain plug 1 downward and stop the engine 2 Remove drain plug 1 level plug 2...

Page 209: ...inspection position on the level and firm ground and then stop the engine 2 Move the pilot control shut off lever to the LOCKED position 3 Clean the surface around the hydraulic oil tank to keep away...

Page 210: ...9 Install strainer 4 by inserting it 10 Install cover 3 with bolt 2 Tightening torque 20 7 to 25 3 N m 15 3 to 18 7 lbf ft 11 Start the engine run it at low idling for several 5 to 7 minutes After tha...

Page 211: ...shut off lever to the LOCKED position and stop the engine Then bleed the air of the hydraulic circuit referring to RELEASING INNER PRESSURE IN HYDRAULIC OIL AND HYDRAULIC SYSTEM in Chapter 4 PILOT VA...

Page 212: ...hat attach a plug to the lubrication hole to keep it away from foreign materials 3 Dust is accumulated inside elbow 1 Spray light oil or air to clean from the side where filter 3 is attached 4 Check O...

Page 213: ...ubrication hole to keep it away from foreign materials 3 Clean inline filter 1 with light oil 4 After cleaning attach inline filter 1 tee and hose For the tightening torque see TORQUE SPECIFICATIONS F...

Page 214: ...om and arm to lower the bucket bottom to the ground on the side of the lower roller to refill the oil and lift up the machine 4 Support the machine with safety strut 5 and then stop the engine 5 On bo...

Page 215: ...with an Allen wrench to drain old gear oil 4 Refill the specified amount 80 cc 4 9 cu in of gear oil through the fuel inlet 5 Wind a sealing tape around plug 3 tighten the plug securely and then clea...

Page 216: ...Refill the specified amount 55 cc 3 4 cu in of gear oil through the fuel inlet 7 Wind a sealing tape around plug 4 and tighten the plug securely Clean up any oil around the engine 8 Attach the remove...

Page 217: ...PARTS Immediately after operation the oil is hot and it may result in burns Wait until the oil temperature cools down before attempting to change the element Use clean soft water for coolant in which...

Page 218: ...about 10 minutes 6 Stop the engine remove the drain plug and drain the water into a container Pour clean soft water into radiator 3 with the drain plug removed to clean the radiator until the clear wa...

Page 219: ...press the valve release the pressure from the tank and then remove the cover Immediately after operation the oil is hot and it may cause burns Wait until the oil temperature cools down before attempti...

Page 220: ...ose of the drained waste oil properly as the industrial waste 8 Place a container for drain oil under drain plug 1 on the bottom of the hydraulic oil tank 9 Loosen drain plug 1 on the bottom of hydrau...

Page 223: ...ns of the attachment Refer to masses and dimensions described in SPECIFICATIONS in this manual to select the proper transportation method Perform a previous examination on the route such as limitation...

Page 224: ...n the ramp and travel slowly Raise the dozer and load unload the machine onto from the trailer with the attachment lowered as much as possible but not hitting the trailer 4 When loading the machine wi...

Page 225: ...ine when loading or unloading it Reinforce the embankment by pile driving to prevent the collapse of the embankment slope if necessary 3 The surface of the platform or embankment must be level to that...

Page 226: ...nsportation 3 Move the pilot control shut off lever to the LOCKED position 4 Turn all switches OFF and remove the starter key In case of the cab specification close the door and lock it 5 Chock the fr...

Page 227: ...applicable for machines in a standard specification The lifting procedures differ for each attachment type and machine with an option specification In such cases contact our authorized dealer distribu...

Page 228: ...GENERAL SPECIFICATIONS Overall length x Overall height x Overall width LxHxW mm ft in 2 150x450x230 7 1 x17 7 x9 1 Mass kg lbs 180 400 L H 5 5 3 DOZER GENERAL SPECIFICATIONS Overall length x Overall h...

Page 231: ...1st High 2nd km h 2 3 4 0 2 1 3 7 Gradeability degree 58 30 Engine Model YANMAR EDM 4TNV88 B Engine Total Displacement liters cu in 2 189 133 6 Engine Output Rating kW min 1 PS min 1 28 3 2 400 38 2...

Page 232: ...5 9 5 9 5 9 7 0 7 0 7 0 150 5 9 2 76 0 98 15 7 13 6 6 2 2 CAB TYPE MACHINE 2000 6 7 2500 8 2 605 23 8 2530 8 4 1170 3 10 1770 5 10 2360 7 9 2920 6 7 5500 18 1 1960 6 5 1560 5 1 400 15 7 1940 6 4 20 7...

Page 233: ...d center of travel motor mm ft in Ground Pressure kPa psi CANOPY CAB Rubber belt 400 15 7 28 2 4 1 28 9 4 2 Iron shoe Optional 400 15 7 29 7 4 2 30 6 4 4 1 960 6 5 1 960 6 5 6 SPECIFICATIONS 6 6 5 Cop...

Page 234: ...6 0 4 420 14 6 0 E Min dumping clearance 1 590 5 2 6 1 590 5 2 6 F Max vertical wall digging depth 3 240 10 7 6 3 240 10 7 6 G Min front swing radius 2 310 7 6 9 2 310 7 6 9 G Min front swing length...

Page 235: ...4 6 0 E Min dumping clearance 1 590 5 2 6 1 590 5 2 6 F Max vertical wall digging depth 3 240 10 7 6 3 240 10 7 6 G Min front swing radius 2 310 7 6 9 2 310 7 6 9 G Min front swing length 2 310 7 6 9...

Page 239: ...acturer and 7 1 4 PROHIBITED WORK IN USE OF BREAKER described later 7 1 3 PRECAUTIONS FOR IMPURITY AND HYDRAULIC OIL When the hydraulic breaker or nibbler crusher is removed apply plugs to the tube en...

Page 240: ...ten the service life of them considerably DO NOT USE OTHER THAN DEMOLITION WORK Do not use the hydraulic breaker for other than the demolition work CONTINUOUS USE FOR 30 SECONDS OR LONGER If a rock ca...

Page 241: ...e hydraulic breaker for breaking rock by dropping it It may cause damage to various parts LIFTING Never use this machine for the lifting work Safety must be given the first priority RAPID STROKE END O...

Page 242: ...orm the breaker work in these positions A Allowed work facing forward B Allowed work facing backward C Prohibited work facing sideways B C C A Even if you use an attachment other than the hydraulic br...

Page 243: ...cification 1 1 Incorrect selector valve switching results in poor function which decreases work efficiency and speed and sometimes causes damage to the machine Be sure to switch the selector valve cor...

Page 244: ...ove bolt 2 with the screw key 5 mm 3 Turn the selector valve to the position suited for the specification with a wrench width across flats 24 mm 4 After switching the selector valve tighten bolt 2 wit...

Page 245: ...ont of the machine to access selector valve 1 2 Turn the selector valve to the position suited for the specification with a wrench width across flats 24 mm 1 SELECTOR VALVE SHIFTING POSITION USE BREAK...

Page 246: ...alve to STOP position 1 1 Free Stop STOP VALVE Valve position Hydraulic oil Free Hydraulic oil flows Stop Hydraulic oil stops flowing Tools used Stop Valve Location Tools 1 Arm Spanner 24 mm 7 NIBBLER...

Page 247: ...tempting any operation of the machine When using the nibbler or the breaker see SELECTION OF ATTACHMENT MODE AND SELECTOR VALVE 7 4 1 PEDAL NIBBLER AND BREAKER Release the pedal lock device on the lef...

Page 248: ...or nibbler put the pedal lock device to the LOCKED position Putting your foot on the unlocked pedal or erroneous touch to it may cause sudden attachment movement resulting in severe personal injury D...

Page 249: ...bler crusher pipings Operation may differ depending on a manufacturer and specification of an attachment installed Check the operation manual for the manufacturer specification of the attachment befor...

Page 250: ...sure oil flows when seeing it from the inside of the cab Operate the breaker for 30 seconds then release the switch 1 2 Operation procedures Oil flow Press switch 1 L H Release switch 1 Stops does not...

Page 251: ...ation procedures Oil flow Sliding to the left L H Sliding to the right R H NIBBLER CRUSHER OPERATION Do not touch breaker switch button 4 when operating the nibbler crusher PRECAUTIONS FOR LEAVING THE...

Page 252: ...switch 1 is slid the left and right which side of the front attachment the high pressure oil flows when seeing it from the inside of the cab 2 1 Operation procedures Oil flow Sliding to the left R H S...

Page 253: ...the deterioration of the hydraulic oil is faster than that of the normal bucket digging work Replace the filters and hydraulic oil earlier as indicated in the periodic inspection and maintenance char...

Page 257: ...mud and drinks on the controller It may cause failure of the machine When an error occurred on the controller do not disassemble it by yourself but contact our authorized dealer distributor for repai...

Page 258: ...h When a warning is displayed on the multi display stop the work immediately and inspect and maintain the failure part For checking and servicing see MAINTENANCE The indications on the multi display d...

Page 259: ...d Overheat 2 White Operational 3 Blue Cold Warm up the engine 2 3 1 8 1 2 FUEL LEVEL METER This indicates the remaining volume of fuel When the fuel level is low the indicator points E For fuel to use...

Page 260: ...This may lead to the failure of the machine Immediately perform inspection and maintenance 4 Difficulty may occur in working Immediately perform inspection and maintenance 5 This notifies of the machi...

Page 261: ...uto stop Manual stop Type Only starter key ON Engine Running Buzzer Sounds 3 3 3 2 3 3 The temperature of engine coolant is at the specified value or more The engine oil pressure is at the specified v...

Page 262: ...0 Hr BACK RESET 500 ENGINE OIL FUEL FILTER INTERVAL REMAINING TIME Hr 500 Hr 500 Hr 500 Hr BACK UP DOWN OK 500 ENGINE OIL FUEL FILTER INTERVAL REMAINING TIME Hr 500 Hr 500 Hr 500 Hr 1 Turn the starter...

Page 263: ...3 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 DAY Hr 1 Turn the starter switch ON to display main screen a Press menu switch 1 to enter user menu screen b 2 Using the Up and Down arrow switc...

Page 264: ...Using the Up and Down arrow switches move the cursor to CLOCK SETTING as display c Press menu switch 1 to enter CLOCK SETTING 3 Using the Up and Down arrow switches select any of YEAR MONTH DAY HOUR M...

Page 265: ...een b 2 Using the Up and Down arrow switches move the cursor to SCREEN SETTING as display c Press menu switch 1 to enter SCREEN SETTING 3 Using the Up and Down arrow switches move the cursor to BRIGHT...

Page 266: ...o enter user menu screen b 2 Using the Up and Down arrow switches move the cursor to SCREEN SETTING as display c Press menu switch 1 to enter SCREEN SETTING 3 Using the Up and Down arrow switches move...

Page 267: ...of remaining time to next hydraulic oil filter change This shows the remaining time of the recommended replacement time for the hydraulic oil filter 4 Display of remaining time to next hydraulic oil c...

Page 268: ...running It is displayed in the unit of 0 5 hr If the operating time of a day is less than 0 5 hr 30 minutes it is displayed as 0 0 No operation day when the engine was not started is displayed as a bl...

Page 269: ...g appears while the engine is running the battery is not charged properly Check the electric devices for working condition and check the charging circuit Immediately stop the engine and check the engi...

Page 270: ...ends out warm and cool air in the cab 8 2 1 GRILLE AIR OUTLET Select air stream in preferable direction by hand A B C Air outlet 1 Control panel 2 Grille A 1 2 C B PRECAUTION IN USE OF AIR CONDITIONER...

Page 271: ...rature is adjusted by turning the knob The temperature goes down by turning the knob left and goes up by turning the knob right AIR CONDITIONER SWITCH Operates the air conditioner compressor when the...

Page 272: ...he temperature is high The engine coolant is used for heating and it is possible to heat the air when the temperature of the coolant is high For your health do not overcool the cab and catch cool air...

Page 273: ...njury by being caught in the cooling fan or fan belts Replace the belt with a new one if flaking or breakage is found on the belt by the inspection Keep the belt away from oil The service life may be...

Page 274: ...dusty area REMOVING FRESH AIR FILTER Hold the handle grip of fresh air filter 1 at the right side in the cab and pull it out straight up 2 1 REMOVING RECIRCULATION AIR FILTER Hold the handle grip of...

Page 275: ...esult in fatal injury Do not bring a fire near the area where refrigerant gas is produced When filling or changing refrigerant confirm the type of refrigerant and use the specified refrigerant Refrige...

Page 276: ...he refrigerant becomes transparent then turns a light milky white After the air conditioner is turned ON no bubbles appear After the air conditioner is turned ON bubbles appear continuously Bubbles Re...

Page 277: ...Display Time Frequency 8 3 2 POWER CONTROL 1 Press power switch 1 to switch the power from OFF to ON After displaying the band the frequency or the time is displayed 1 After 1 5 seconds Press power s...

Page 278: ...ion To switch the time display to the frequency display press the DISP key After the display of station for 1 5 seconds the display changes to frequency display 8 3 4 BAND SWITCHING Press AM FM switch...

Page 279: ...frequency increases or decreases Auto select station 1 When pressing UP or DOWN key Press more than 1 second the frequency increases or decreases by one step 2 When the radio waves are received during...

Page 280: ...right 3 After auto presetting this function receives the memorized station on PRESET 1 5 7 Example of FM1 is selected Press SOUND key For 1 second or more After a certain time After a certain time Af...

Page 281: ...et memory Calling Press one of the six PRESET keys 5 to call and tuned to the station memorized on that PRESET No 1 Press one of the six PRESET keys 5 2 After the pressed PRESET No is displayed the di...

Page 282: ...up or down 3 After operation of the volume control key the display returns to the frequency or the time 3 Example of FM1 is selected From the nolume 11 level Frequency display Volume display Volume di...

Page 283: ...d press tone control key 7 SOUND key Example of FM1 is selected Sound control display Balance SOUND key Sound control display Treble SOUND key Frequency display SOUND key Sound control display Bass Re...

Page 284: ...splay Treble UP key UP key DOWN key DOWN key BASS CONTROL To emphasize the bass press UP key 4 while BAS is displayed To weaken the bass press DOWN key 4 while BAS is displayed Sound control display B...

Page 285: ...again and the Minute display blinks 4 To increase Minute press UP key 4 To decrease Minute press DOWN key 4 5 Press DISP key 6 again to complete the time setting 4 6 8 3 9 ANTENNA To prevent interfer...

Page 286: ...n the control pattern labels If you operate the machine while the control pattern labels do not match the actual machine movement it may cause severe accident resulting in severe personal injury When...

Page 287: ...2 and switch lever 3 to the position of the desired control lever pattern 4 Tighten wing bolt 2 to fix lever 3 after setting the control pattern Firmly tighten wing bolt 2 by your fingers without tool...

Page 288: ...s seat Cab specification Inside the cab door 1 The control pattern labels are magnetic They are needed when changing the control pattern Keep them in a safe place CONTROL PATTERN LABEL KOBELCO PATTER...

Page 289: ...d to control the raise and lower of the blade in back and forth and used to control the angling of the blade in right and left Lever operating direction Forward Backward Press button and push lever to...

Page 290: ...FICATIONS SK55SRX 6 Overall length when dozer is attached on the rear side 6 260 20 6 5 Dozer overall width 1 960 6 5 2 Dozer height 345 13 5 Operating angling angle 23 X 23 Dozer raising and lowering...

Page 291: ...M E T S Y S MAINTENANCE TO PERFORM COMPONENT LOCATION INTERVAL Hour on Hourmeter REF ITEMS 8 50 120 250 500 E D A L B R E Z O D Tightening of each capscrew Dozer blade O Check on hydraulic hose contro...

Page 292: ...under water the submerged section must be lubricated before starting and finishing the operation 2 When operating the machine after one month or more of suspension out of operation lubricate it before...

Page 293: ...WITHOUT FRONT ATTACHMENT Do not move heavy loads or lift up the machine without a front attachment installed The quick hitch may have excessive load imposed and be damaged 8 6 2 PRECAUTIONS INTERFEREN...

Page 294: ...C COMPONENTS OF THE MACHINE 9 4 6 1 2 3 7 6 5 10 8 12 11 Item Name Item Name 1 Movable hook 7 Cylinder 2 Fixed hook 8 Relief valve 3 Lock plate 9 Bucket link 4 Link connecting pin 10 Arm 5 Arm connect...

Page 295: ...to 292 8 5 to 11 5 C Distance from attachment mounting pin to attachment end mm in 800 31 5 D Pin diameter mm in Diameter 45 1 8 Mass kg lb 460 1 014 or less If the dimension of a bucket matches the...

Page 296: ...ide The quick hitch operation switch is equipped with the sliding mechanism for preventing an erroneous switch operation See 2 4 8 QUICK HITCH OPERATION SWITCH Movable hook 1 is actuated to release th...

Page 297: ...Extend the bucket cylinder so that the quick hitch comes in contact with pin 3 Make sure that fixed hook 4 securely clamps pin 2 3 4 4 Set the quick hitch operation switch to the LOCK side The quick...

Page 298: ...lubricated at the greasing points of attachment every 8 hours for the first 50 hours of operation After that it should be lubricated every 50 hours of operation For the digging work in the water grea...

Page 299: ...n dumping clearance 1 430 4 8 3 F Max vertical wall digging depth 2 880 9 5 4 G Min front swing radius 2 310 7 6 9 G Min front swing length 2 310 7 6 9 H Height at min slew radius 4 480 14 8 4 J 8 fee...

Page 303: ...r or replace c Pilot valve is damaged Repair or replace 4 Machine does not slew a Hydraulic motor slewing is not working or slewing gear is damaged Repair or replace b Slewing bearing is damaged Repai...

Page 304: ...level low Fill to specified level b Oil leaking Repair fill to proper lev el c Wrong oil viscosity Replace with proper oil 2 Abnormal rise in the coolant temperature a Low coolant Fill to proper leve...

Page 305: ...b Air cleaner clogged Replace with new ele ments c Loose clamps on suction hose Tighten clamps d Cracked suction hose Replace with new hose e Engine oil level is too high Reduce to specified level 8...

Page 309: ...eration inspection maintenance or repair of this machine Any procedure in this chapter should be performed by the service person who fully understand this machine and has needed skills 10 SPECIAL PROC...

Page 310: ...O ring 11 carrier kit 10 S1 gear 8 and S2 gear 9 4 10 11 5 3 6 7 2 9 8 1 Be careful not to damage the lip of cover 6 It might cause oil leaks Be careful not to damage removed parts during storage 8 In...

Page 311: ...ed in five minutes after the engine stops because the accumulator pressure gradually falls to disable the operation of lowering the attachment 1 Move the pilot control shut off lever to the LOCKED pos...

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Kobelco SK55SRX-6, Operation Manual

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