Kubota U50-5 Operating Instructions Manual Download

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Safety rules

W9272-8135-1

05/2020

Safety symbols

The following terms and hazard symbols are used in these operating instructions:

Identifies important operating procedure information which may not be immediately evident to the op-
erator.

Identifies operating procedures which must be followed exactly to prevent damage to the machine or
other property.

Identifies operating procedures which must be followed exactly to prevent danger to persons.

Identifies possible hazards in the handling of batteries.

Identifies possible hazards from caustic materials (battery acid).

Identifies possible hazards from explosive materials.

Prohibits the use of fire, ignition sources, and smoking.

Prohibits the spraying of water.

Identifies operating procedures for the proper disposal and storage of ensuing waste materials.

STOP

Summary of Contents for U50-5

Page 1: ...GB COMPACT EXCAVATOR MODEL U50 5 OPERATING INSTRUCTIONS W9272 8135 1 Original 05 2020...

Page 2: ...er existing agreement promise or legal relationship or amend this All responsibilities arise of the respective sales contract containing the complete and exclusively valid contractual warranty refer t...

Page 3: ...emergency stop 30 Protective structure cab 31 Emergency hammer 31 Pipe safety valve 32 Overload warning system 33 Hazards coming from the hydraulic system 34 Fire protection 34 Recovery loading and tr...

Page 4: ...iding the operator 74 Working in the vicinity of overhead power lines 75 Working in the vicinity of underground power lines 75 Initial operation 76 Setting the display language 76 Setting the date tim...

Page 5: ...Operating the arm 120 Operating the bucket 121 Swivelling the swivel frame 122 Swinging the boom 122 Operating the auxiliary ports 123 Activating the auxiliary port function 123 AUX port 1 124 AUX por...

Page 6: ...tem 159 Registering a black key for the machine 160 Troubleshooting 163 Safety rules for troubleshooting 163 Troubleshooting Before operation 163 Troubleshooting Operation 164 Troubleshooting Display...

Page 7: ...it oil change 212 Interior air filter check clean change 212 Pipes and hoses of the heating and air conditioner systems check 214 Coolant content air conditioner only check 215 Viewing the operations...

Page 8: ...agnetic compatibility EN Europ ische Norm European standard FOPS Falling Object Protective Structure GL Ground level h Hour incl including ISO International Organization for Standardization kg kilogra...

Page 9: ...om Arm dump Arm crowd Bucket crowd Bucket dump Coolant temperature indicator Service interval indicator Swivel boom left Swivel boom right Dozer up Dozer down Control lever direction Control lever dir...

Page 10: ...Particle filter regeneration Increase engine speed Particle filter regeneration locked Travel alarm cancel Dozer in floating position Overload warning indicator Raise control lever lock indicator Sta...

Page 11: ...els Information applying only optional equipment is high lighted e g optional The terms front and direction of travel refer to the view of the op erator when seated on the operator s seat Forward dire...

Page 12: ...d speed Nominal output ISO 14396 Measured sound power level Guaranteed sound power level U50 5 2200 1 min 29 7 kW 94 3 dB A 96 dB A Referred standards EN 474 1 2006 A6 2019 except Annex G EN 474 5 200...

Page 13: ...regulations only persons who were instructed in the operation of the machine who have proven their qualification to the owner employer and who can be expected to perform their duties in a reli able w...

Page 14: ...ng spare parts please always provide the following information Machine s product identification number and year of construction see type plate Designation type of spare part see original KUBOTA spare...

Page 15: ...safety regulations These operating instructions in particular the safety instructions must be followed by all persons working near or with the machine Above and beyond this the safety rules and regul...

Page 16: ...chine improper starting operation and maintenance of the machine operation of the machine with defective safety devices or improperly installed or non operational safety and protective devices ignoran...

Page 17: ...o prevent damage to the machine or other property Identifies operating procedures which must be followed exactly to prevent danger to persons Identifies possible hazards in the handling of batteries I...

Page 18: ...ction page 16 of the machine documented in these operating instructions is considered an unapproved use This also applies to the non ob servance of the standards and guidelines listed in these operati...

Page 19: ...must make sure that all operators and users have read and understood these operating instructions Persons who work with or on the machine must be provided by the operator with and where applicable use...

Page 20: ...ed directly at the workplaces subject to actually existing conditions oth er noise sources special operating conditions sound reflections Depending on the actual noise emissions the owner must provide...

Page 21: ...damaged or missing safety labels with new ones from your KUBOTA dealer If a component with glued on safety labels is replaced with a new part make sure that the new labels are affixed to the same loc...

Page 22: ...e boom Ensure safe distance to obstacles and sufficient freedom of move ment 2 Code RB456 5789 0 Danger in the danger zone of the front attachments Standing in the danger zone while the front attachme...

Page 23: ...788 5725 0 Mortal danger by crushing Low safe distance to the machine and to obstacles can prevent an emergency exit from the danger zone Crushing by machine results in severe injury or death Do not e...

Page 24: ...otating fans can cut into limbs and the rotating belt drive can pull in and crush limbs Switch off the engine before working in the engine room Ensure that the engine and all the engine parts have com...

Page 25: ...ing of the crawler tensioner grease or the pressure valve can splash out under high pressure and lead to inju ry Before working on the crawler tensioner please read the operating instructions 2 Code R...

Page 26: ...a hot radiator Posing a risk of scalding your face and hands Surfaces can be hot and lead to burns Do not open the hot radiator Allow the machine to cool down before working on the cooling cir cuit 3...

Page 27: ...components 2 Code RD579 5739 0 Mortal danger from moving machine When staying in the danger zone and in the case of a suddenly starting machine there is the danger of being run over by the machine On...

Page 28: ...from inflammable diesel fuel Inflammatory vapours can occur in the fuel tank which may go up in flames as a result of an ignition source Do not use open flames in the vicinity of the fuel tank 2 Code...

Page 29: ...d in between the right console and seat bracket Only open and close the cabin door using the grips intended for that purpose Never put your hands and fingers in the gap between them 2 Code RD579 5783...

Page 30: ...mp onto the machine Maintain a safe distance from overhead power lines 3 Code RD579 5793 0 Risk of injury from falling front window If the front window has been pushed up and not is properly bolted th...

Page 31: ...de RD479 5747 0 Max lifting load during swivel operation is 360 2 7m 0 1 2 3 4 5 6 0 1 2 3 4 1 2 3 4 5 6 m 360 X m kg X 1 45m 4 5 m 4 m 3 m 2 m Z X MAX 540 640 950 Z 2 530 610 910 1440 Z 1 470 610 750...

Page 32: ...e ver lock 2 the hydraulic functions of the control lever the drive le ver the boom swing pedal the dozer control lever and the auxiliary port are locked This circumstance allows safe getting on and o...

Page 33: ...lic hammer or other attachment for demolition work where material e g asphalt is removed and can uncontrollably sputter away a gravel guard is recommended for protection Emergency hammer In case of an...

Page 34: ...nd arm together with an overload warning system page 33 according to EN 474 5 If the dozer is being used to increase the machine s stability an ad ditional pipe safety valve must be installed in accor...

Page 35: ...must be equipped with at least one pipe safety valve on the boom and arm together with an over load warning device in accordance with EN 474 5 If the dozer is being used to increase the machine s stab...

Page 36: ...sidues from plants and trees or any other flammable materials should be removed from the machine This must be observed in particular in the proximity of the engine and the exhaust system but also at t...

Page 37: ...een inserted in the cab construction on the left side behind the driver s seat A fire extinguisher including its mounting bracket can be mounted on board if they weigh less than 10 kg A fire extinguis...

Page 38: ...36 W9272 8135 1 05 2020 Safety rules...

Page 39: ...erve the admissible values for the towed load and the maximum pressing load vertical down on the towing eye during recovery see Specifications page 46 Safety rules while loading with a crane Crane and...

Page 40: ...he ramp The guide is responsible for ensuring safe load ing Only move the machine when instructed to do so by the guide The operator and guide must maintain constant eye contact If the operator cannot...

Page 41: ...are fully retracted Also see the Excavation work operating the controls section page 117 Bring the boom in line with the longitudinal axis of the swivel frame Completely extend the boom cylinder arm c...

Page 42: ...rotect the machine Always keep the machine level Be sure that the centre line of the crane hook is aligned as exactly as possible with the centre line of the machine and that the lifting angle is as s...

Page 43: ...oximity to that area while operating the machine on the ramp and in the loading area e g when driving onto the ramp or when rotating the swivel frame Guides must maintain a safe distance from the mach...

Page 44: ...as illustrated in the figure Secure the machine in front of and behind the chains and the dozer to prevent it from slipping e g using wooden beams 2 Secure the machine using appropriate and labelled...

Page 45: ...Description of the machine W9272 8135 1 43 05 2020 DESCRIPTION OF THE MACHINE Model overview The excavator is available in the model series U50 5 Model U50 5...

Page 46: ...272 8135 1 05 2020 Description of the machine Dimensions The dimensions of the model U50 5 can be found in the following illustrations including tables Dimensions U50 5 N H Q C B A R P I O J D E F G M...

Page 47: ...sion All dimensions in mm with original KUBOTA bucket and rubber crawlers Subject to technical changes A B C D E F G H I J 810 620 1960 5440 3775 3370 2670 1010 4125 5850 K L M N O P Q R 440 405 2550...

Page 48: ...transient test cycle g kWh 798 1 Non road steady state test circle g kWh 776 7 Performance Swivel frame swivel speed 1 min 9 2 Vehicle speed Fast speed km h 4 9 Slow speed km h 2 8 Ground pressure wi...

Page 49: ...MS 0 5 Prepared for operation with original KUBOTA bucket 119 kg Machine weight incl operator 75 kg This CO2 measurement results from testing over a fixed test cycle under laboratory conditions a n pa...

Page 50: ...Non road steady state test circle g kWh 776 7 Performance Swivel frame swivel speed 1 min 9 2 Vehicle speed Fast speed km h 4 9 Slow speed km h 2 8 Ground pressure without operator kPa 28 7 Climbing...

Page 51: ...MS 0 5 Prepared for operation with original KUBOTA bucket 119 kg Machine weight incl operator 75 kg This CO2 measurement results from testing over a fixed test cycle under laboratory conditions a n pa...

Page 52: ...ield on the back of the front cover 1 CE label 2 Max pulling capacity at the towing eyes 3 Max vertical load at the towing eyes 4 Product identification number 5 Year of construction 6 Engine performa...

Page 53: ...perating instructions with protective cover Spare parts catalogue Filter wrench Grease gun Spare fuses 30 A 50 A 80 A Guarantee Stow the filter wrench and other tools in the tool compartment page 63 T...

Page 54: ...52 W9272 8135 1 05 2020 Description of the machine...

Page 55: ...12 7 7 8 8 9 9 10 10 11 11 1 Swivel frame 2 Track frame 3 Rear view mirror 4 Operator s place 5 Cab door 6 tank filler neck 7 Drive sprocket 8 Crawler 9 Front idler 10 Dozer 11 Dozer cylinder 12 Swing...

Page 56: ...rol elements 1 Left control console 2 Drive levers and control pedals 3 Right control console 4 Operator s seat Left control console The left control console includes the following components 1 Contro...

Page 57: ...xiliary port 2 Turning the rocker switch to the left causes the oil to flow towards the connector on the left hand side of the arm Turning the rocker switch to the right causes the oil to flow towards...

Page 58: ...s and control pedals description 1 Left and right drive levers With the drive levers the machine can be driven forwards and backwards and also turned The left drive lever controls the left track and t...

Page 59: ...nable switch 4 Right control lever 5 One way hold switch 6 Travel speed switch 7 Dozer control lever 8 Heating and air conditioner control optional 9 Inhibit switch 10 Potentiometer for the adjustment...

Page 60: ...attachment without having to continuously hold down the button 6 Travel speed switch Switches the travel speed mode on and off 7 Dozer control lever The dozer control lever is used to raise or lower...

Page 61: ...of the engine speed The operator can use this potentiometer to set the engine RPM to any desired speed 11 Starter switch The starter switch serves as the master switch for the entire machine and as sw...

Page 62: ...5 Washer switch Switches the washer system 6 Wiper switch Switches on the wiper for the front window 7 AUTO IDLE switch Using the switch you can switch the AUTO IDLE control on or off The AUTO IDLE co...

Page 63: ...ndicator The engine oil pressure indicator lights up when the oil pressure is below the reference value 3 Charge indicator The charge indicator lights up when the charging circuit voltage is too low 4...

Page 64: ...he front window is provided with a wiper washer system The sys tem is operated with the washer switch 1 and wiper switch 2 The washer system reservoir 3 is located on the right vehicle side under the...

Page 65: ...1 is located behind the right side cover in the cabin Tool compartment The tool compartment 1 is located behind the left swivel cover Main battery The main battery 1 is located on the right side of th...

Page 66: ...Battery isolator The battery isolator 1 can be used to cut off the main power circuit The battery isolator is located on the right vehicle side under the side cover Main fuses The main fuses 1 of the...

Page 67: ...al electric device is located on the right front inside the cabin Cup holder The cup holder is located on the right side in the cabin Tank filler neck and fill level monitor The tank filler neck 1 and...

Page 68: ...el includes the following components 1 Temperature control 2 Blower switch 3 Air conditioner switch optional 4 Indicator optional Using the air conditioner switch you can switch on the air conditioner...

Page 69: ...intake 1 to the left of the cab or as re circulated air in the cab The lever 2 can be used to switch the air intake between re circu lated air A and fresh air B To make sure the air gets sucked in pr...

Page 70: ...Do not get the register s temperature fuse short circuited Do not get the blower motor s fuse short circuited The air conditioning heater unit proper is not waterproof In the following cases pay atte...

Page 71: ...itioned at the rear of the swivel frame it is covered by a lockable hinged cover 1 1 7 7 6 6 5 5 4 4 2 2 3 3 8 8 9 9 10 10 1 Coolant expansion reservoir 2 Filter indicator 3 V belt cover 4 Alternator...

Page 72: ...t filter 6 Sight glass for hydraulic oil level Return change valve for direct return flow According to the mode of operation of a given attachment the return flow of the hydraulic oil must occur eithe...

Page 73: ...er The radiator and condenser for the cooling circuits and the air conditioner system are under the right side cover 1 Coolant radiator 2 Fuel cooler 3 Hydraulic oil radiator 4 Condenser air condition...

Page 74: ...72 W9272 8135 1 05 2020 Assembly and functions...

Page 75: ...ab can also be left with the engine running The operator must make sure that the left control console remains in an upright position The controls may only be used while the operator is sitting on the...

Page 76: ...hildren in the manoeuvring area Before leaving the machine park it so that it cannot move When leaving the machine e g for breaks or at the end of work stop the engine remove the key and close the cab...

Page 77: ...s over leave the danger zone with the machine if possible by taking suitable measures If this is not possible do not leave the operator s place warn any approaching persons of the danger and have the...

Page 78: ...e Operating the machine section page 83 as well as the following sections If failures are detected please inform your dealer immediately Setting the display language Messages in the display can be sho...

Page 79: ...ation W9272 8135 1 77 05 2020 The list of available languages appears in the display Rotate jog dial to the right or the left until the desired language is selected Press jog dial enter switch to conf...

Page 80: ...he right or the left until Set date Set time is selected Press Jog dial enter switch Set date Set time screen appears in the display Rotate jog dial to the right or the left until the desired unit is...

Page 81: ...lected in the display Press Jog dial enter switch The Various settings appears in the display Rotate jog dial to the right until Date time is selected in the display Press Jog dial enter switch The Da...

Page 82: ...og dial to the right until Display brightness is selected in the display Press Jog dial enter switch Display brightness setting screen appears in the display Rotate jog dial to the right or the left u...

Page 83: ...e key To turn off the working light in preference to this turn off delay function you may use the working light switch Press menu switch on dial switch The menu bar appears in the display Rotate jog d...

Page 84: ...ired item Rotate jog dial to the right or the left until icon of acknowl edge is selected in the display Press jog dial enter switch to complete Work light turn off delay setting To cancel your input...

Page 85: ...necessary Check for accumulated residues from leaves straw pine needles twigs bark and other flammable materials and remove if necessary Check the safety labels on the machine They must be complete a...

Page 86: ...FULL A and LOW B If the oil level is too high or too low the engine might get damaged during operation Do not mix engine oils from different brands Before filling in a different brand of engine oil dr...

Page 87: ...often collect at this point After cleaning inspect the radiators for damage V belt check Air conditioner V belt optional Press in the V belt 1 at position A The V belt must give way by approx 12 to 15...

Page 88: ...ully check the position of the hydraulic cylinders before topping up the oil For more information see the Topping up changing the hydraulic oil section page 202 A Upper limit B Lower limit Risk of bur...

Page 89: ...parator check Visual inspection of the water separator 1 for water and sedi ments If the water separator is contaminated empty the water separa tor page 192 Make sure that the sensor cable plug 5 is c...

Page 90: ...ner optional page 134 Check the function of the washer system page 137 Check all accessible electric cables connectors and connections for condition and tightness Repair or replace damaged parts Check...

Page 91: ...closing the cab door section page 139 Getting on the machine Move the left control console 2 up as far as possible by pulling the control lever lock 1 up Get on the machine by using the crawler or st...

Page 92: ...seat so that fatigue free and comfortable working is possible It should be pos sible to operate all controls safely Mechanical suspension seat Air suspension seat optional Check that the seat is locke...

Page 93: ...t a comfortable cushioning is achieved Seat height adjustment knee height and operator s weight for air suspension seat To adjust the height and spring operator s weight of the air suspension seat use...

Page 94: ...or can safely operate the control levers with the back resting completely on the backrest With the console in a desired position make sure the adjust lever is locked Do not step on the console adjust...

Page 95: ...he position of the seat 1 Field of view within a radius of 12 m 2 Field of view in the immediate area 3 Indirect field of view visible using mirrors 4 Obscured areas Take a seat in the operator s seat...

Page 96: ...ately with new rear view mirrors If the rear view mirrors can no longer be adjusted repair the adjustment mechanism or replace the rear view mirrors if necessary The obscured areas in the previous fig...

Page 97: ...nking the horn Make sure that all operational controls are in the neutral position Starting the machine is only allowed when the operator is sitting on the operator s seat Before starting the engine m...

Page 98: ...ck is not raised the display message as in the figure on the right appears Before starting the engine make sure that the dozer control lever is not at the floating position page 118 The machine is equ...

Page 99: ...eed Fuel appears in the display and the warning light 1 flashes yellow there is very little fuel left in the tank Refuel the machine page 147 Turn the starter switch to the START position and hold it...

Page 100: ...DLE control makes sure that the pre selected engine speed drops down to idle speed after approx 4 seconds provided that no control lever is being used When AUTO IDLE control turn on the AUTO IDLE indi...

Page 101: ...glowing indicator lights up for a short period of time The engine can be started after it disappears Turn the starter switch to the START position and hold it there until the engine has started Releas...

Page 102: ...fault occurs in the charging system during operation the engine must be stopped immediately The charge indicator 2 lights up the warning light 1 flashes red and the display message as in the fig ure...

Page 103: ...W mark let the engine cool completely and add coolant page 182 Check the cooling system for leaks if necessary contact skilled personnel Check if the V belt is very loose or broken if necessary contac...

Page 104: ...fuel left in the tank Refuel the machine page 147 Checking error messages Press menu switch on dial switch The menu bar appears in the display Messages is selected Press Jog dial enter switch The lis...

Page 105: ...diately if the engine speed rises or drops suddenly abnormal noises are heard the mechanical equipment do not respond to the control lever as expected or the exhaust fumes are black or white When the...

Page 106: ...hould be done outdoors only Despite using a particle filter there is still a risk of poisoning by inhaling the exhaust gases Observe the safety regulations of TRGS 554 and any national regulations Ris...

Page 107: ...egeneration starts a message appears in the display as shown in the figure on the right In addition the yellow warning light flashes and an audible signal is emitted every 60 sec onds The exhaust temp...

Page 108: ...ng and raise the en gine speed until the Raise engine speed indicator and message disappear Turn the starter switch to the STOP position Start engine Raise the engine speed until the Raise engine spee...

Page 109: ...ble materials are within the immediate working ar ea Raise the engine speed until the Raise engine speed indicator and message disappear The automatic particle regeneration starts All the functions an...

Page 110: ...ed at brief intervals Press the inhibit switch 1 The indicator goes out and regeneration starts If the particle filter regeneration is not released using the switch the degree of saturation in the par...

Page 111: ...le filter is regenerated But the engine power is restricted to 50 If the particle filter regeneration was locked permanently the parti cle filter must be reconditioned by your KUBOTA dealer The displa...

Page 112: ...has to make the necessary preparations for re generating the particle filter The particle filter is clogged if the message Engine output is limited is shown in the display The engine power is reduced...

Page 113: ...e bucket as low as possible when driving Check the ground for stability and verify if there are holes or other potential obstacles Approach overhangs and edges of ditches carefully as they could cave...

Page 114: ...ously A Forward B Reverse C Straight ahead To drive faster press the travel speed button 1 If the dozer is not at the front as shown in the figure but at the rear the operation of the drive levers is...

Page 115: ...o neutral leave the right drive lever pushed forward A The machine makes a left turn Do not drive fast on muddy or uneven terrain also if another control is operated e g turning the swivel frame Turns...

Page 116: ...e turning radius is determined by the right track A The machine makes a right turn Turning on the spot Move the drive levers in opposite directions The tracks will turn in opposite directions The cent...

Page 117: ...ving on gradients raise the bucket approx 200 to 400 mm A above the ground see figure When driving on gradients let the bucket slide over the ground if the terrain allows it Exercise extreme caution w...

Page 118: ...cut Make sure that no foreign objects get stuck in the rubber crawl er Foreign objects lead to excessive crawler wear and can cause it to break Keep oil products away from the rubber crawlers Remove a...

Page 119: ...bricating grease emerges When digging with the boom above the dozer make sure that the boom cylinder does not come into contact with the dozer Adhering soil can be shaken off when the bucket is being...

Page 120: ...function is used to level the surface while driving in re verse for example in order to follow the contour of the surface with the dozer In order to move the dozer into floating position push the doze...

Page 121: ...g the swivel frame To raise the boom pull the right control lever back figure To lower the boom push the right control lever forward fig ure Control lever Movement Right control lever 1 Lower boom 2 R...

Page 122: ...figure Operating the arm To dump the arm push the left control lever forward figure To crowd the arm pull the left control lever back figure The arm moves as shown in the figure Watch the boom during...

Page 123: ...crowd digging the bucket move the right control lever to the left figure To dump empty the bucket move the right control lever to the right figure The bucket moves as shown in the figure When crowdin...

Page 124: ...lockwise press the boom swing pedal on the right hand side figure The figure details the swing movement No person is allowed to stand in the swivel area during the movement Swivel carefully to avoid a...

Page 125: ...re moved and can uncontrollably sputter away personal protective equipment is to be worn at all times safety shoes safety helmet eye protection ear protection and if necessary a breathing mask The us...

Page 126: ...the auxiliary port 2 rocker switch in direction The oil will flow towards connector 5 on the left hand side of the arm The auxiliary port function is only available when the control lever lock is low...

Page 127: ...right Press the AUX enable switch first and then han dle the rocker switch For one way hold operation the return change valve has to be set to the direct return flow position page 130 The attachment c...

Page 128: ...s in the display Rotate jog dial to the right until AUX setting is selected in the display Press Jog dial enter switch The AUX setting appears in the display Mode select is selected Press Jog dial ent...

Page 129: ...machine Even when using identical flow rate set tings for the other machine the working speed may differ For each machine you need to individually adjust the flow rate settings Upon changing the impl...

Page 130: ...s with symbol Rotate jog dial to the right or the left until the icon is selected Press Jog dial enter switch Rotate jog dial to the right or the left until the desired icon is se lected Press jog dia...

Page 131: ...nowledge is se lected in the display Press jog dial enter switch to complete Flow volume setting To cancel your input press return switch The display returns to its previous display mode It is possibl...

Page 132: ...ter via the control valve and then to the hydraulic oil tank In that case the return flow may use the left or right auxiliary port 1 connector of the arm depending on the po sition of the rocker switc...

Page 133: ...etely Turn the starter switch to the STOP position Wait until the engine has come to a standstill Turn the starter switch to the RUN position Lower the left control console 1 and make sure that the co...

Page 134: ...s no oil flow Make sure that the flow rates are not set to the lowest level Rocker switch auxiliary port 1 3 on the right control lever must be pushed over completely to the right and left The auxilia...

Page 135: ...e and lock all covers Close and lock the cab door The key must remain with the operator Check the machine for external damage and for leaks Any failures must be repaired before the next start In case...

Page 136: ...to the Warm position Blue Cold Red Warm Set the blower switch 2 to position 1 2 or 3 Set the air nozzles to the desired position This air conditioner contains fluorinated greenhouse gases F gases Refr...

Page 137: ...h lever 1 No warm outside air will enter and the circulating inside air cools down faster In dusty surroundings the fresh air supply should be switched on in order to increase the air pressure inside...

Page 138: ...ptional to switch the system on The indicator 4 lights up Direct the air nozzles towards the front window After de icing the windows or cleaning them of condensation the air conditioner may be turned...

Page 139: ...ns for as long as the switch is held down The indicator 2 lights up Hold down the switch longer and the wiper will get started Release the switch and the wiper will swing several times and stop itself...

Page 140: ...position Operating the rotary beacon optional The starter switch is in the RUN position Press the switch 1 to turn on the rotary beacon the indicator 2 will light up Press the switch 1 again to turn...

Page 141: ...the door handle 1 and lock the door by attaching the hook 2 at the cab wall Closing the cab door Press down the release lever 1 and pull the cab door into the lock Opening the cab door from the inside...

Page 142: ...front window forward within the guide rails up to the stopper Lock the front window at the stopper by re leasing the lock bars Check that the front window is locked Always lock the front window Do not...

Page 143: ...back wall and into the locking mechanism 3 until it snaps The front window must be opened and the backrest must be folded completely forward Note that the glass pane may fall down risk of injury If th...

Page 144: ...nto position in front of the rubber seal 4 Carefully place the front window base on the rubber blocks 2 Check that the front window is opened before install ing Note that the glass pane may fall down...

Page 145: ...both the working lights and the instrument lighting Pressing once The boom s working light turns on The upper indi cator 2 will light up Pressing twice The boom s and cabin s working lights turn on T...

Page 146: ...itch with graphite lubricant Grease the cab door hinges Fill the washer system with a antifreeze window cleaner page 147 Operation during the winter season The machine must be cleaned after work is fi...

Page 147: ...speed Check if the charge lamp turns off after starting Disconnect the jumper cable at the frame of the machine first and then at the negative terminal of the helping vehicle Disconnect the second ju...

Page 148: ...em The starter switch is in the RUN position If necessary lower the boom and the arm with the control levers as described in the Operating the controls during excavation work section page 117 If the e...

Page 149: ...After refuelling the machine be sure to tighten the filler cap and close the left service cover Spilled fuel must be bound immediately with an oil binding agent The contaminated oil binding agent mus...

Page 150: ...starter switch must be in the STOP position The switch 2 for the fill level monitor is located above the tank filter neck 1 Ensure that the starter switch is switched to the STOP position Press the sw...

Page 151: ...tem automatically within approx 60 s If the bleeding was insufficient the engine will stop again In this case repeat the procedure If the fuel tank was run empty or if work was performed on the fuel s...

Page 152: ...is not allowed If the malfunction can not be remedied by replacing the fuse or if the fuse blows again when starting contact skilled personnel Before replacing the slow blow fuse and other fuse turn...

Page 153: ...2 1 23 22 21 20 19 18 17 16 15 14 13 5A 5A 1 Blower motor 13 ECU Main AC 2 A C Controller 14 Fuel Pump 3 ECU LED B 15 Control lever Lock 4 ECU Main Power 16 Alternator 5 Horn Switch 17 Seat 6 Room lig...

Page 154: ...se box cap 1 and cover 2 then remove the bolts 3 Remove the burnt out main fuse from the main fuse box 1 and replace it Fuse layout A Alternator 80 A C Main Power 1 60 A C Main Power 2 50 A D CRS 30 A...

Page 155: ...cut off switch 1 must be in the ON position A OFF B ON If the battery cut off switch is in the OFF position most of the electrically powered functions will also be switched off e g horn fuel fill leve...

Page 156: ...nd press it into the lock Turn the key anticlockwise to lock the engine compartment cover Remove the key Risk of injury by the engine compartment cover swing ing upwards Putting up the engine compartm...

Page 157: ...er and press it into the lock Turn the key anticlockwise to lock the side cover Remove the key Risk of injury by side cover swinging upwards Putting up the side cover is supported by a gas spring The...

Page 158: ...and turn the key anticlockwise Pull out the key Opening closing the left service cover Insert the key in the lock 1 of the cover 2 and turn it anti clockwise Open the cover To lock the cover close it...

Page 159: ...clockwise Pull out the key Replacing the bucket When replacing the bucket make sure to wear an eye protection a helmet and protective gloves During attaching and detaching chippings and burrs may occ...

Page 160: ...set to STOP when leaving the machine an acoustic signal will sound as a warning and the message Pull out the key is shown in the display The vehicle comes with two different types of keys Black indiv...

Page 161: ...turned off Do not use several of these keys in a bunch This could lead to electrical interfering frequencies which might prevent the motor from starting Use only the special KUBOTA key ring Other key...

Page 162: ...the machine s working area It is essential to warn persons in the vicinity of the machine by briefly honking the horn Make sure that all operational controls are in the neutral position Starting the...

Page 163: ...ess the return switch on dial switch to complete registration 9 One after the other insert all registered black keys into the starter switch and check whether the engine can be started us ing these ke...

Page 164: ...162 W9272 8135 1 05 2020 Operation...

Page 165: ...a of the front attachments unless the front attachments are secured against inadvertent lowering by suitable measures Troubleshooting Before operation MALFUNCTION POSSIBLE CAUSE REPAIR No function ava...

Page 166: ...il page 86 Suction filter restricted Change the suction filter in the hydraulic oil tank page 200 Hydraulic hoses or connections are leaking Must be replaced Inform your KUBOTA dealer Travel speed but...

Page 167: ...KUBOTA dealer Engine oil level is too low Check the engine oil level add engine oil if necessary page 189 Fuel quality is low Use fuel as indicated in the Operating materials table page 180 Particles...

Page 168: ...hydraulic sys tem for leaks if neces sary contact your KUBOTA dealer 3 Problem with charging system The machine will work until the battery dies Check the V belt When the V belt is OK let the engine r...

Page 169: ...an run but ma chine fails to move Inform your KUBOTA dealer immediately 14 Problem with multi pur pose system If systems other than multi purpose system function work can be continued Inform your KUBO...

Page 170: ...the oil cooler and other components for clogs Immediately clean them 26 DPF is regenerating This is a normal maintenance activity Exhaust temp is rising It is possible to work with careful operation 2...

Page 171: ...rect key 36 Cannot start with red key Engine will not start Start engine with correct key 37 Problem with hyd oil temp sensor system Meter does not show hyd oil temp and over heating cannot be detect...

Page 172: ...g 44 Malfunctions in the partic ulate control device PCD NOx control de vice NCD Engine control is not working properly Immediately contact your KUBOTA dealer of the emergency repair No indicator Prob...

Page 173: ...ozer must always be lowered to the ground for servicing When failures are detected during servicing or maintenance the machine may only be operated after the fail ures have been repaired Repairs may o...

Page 174: ...e paid to the repaired parts and the safety devices Maintenance intervals Maintenance interval display 10 hours before a certain service interval is due the respective maintenance interval is already...

Page 175: ...ather filter Change 500 h 5 Drive unit oil Change 500 h 6 Hydraulic oil Change 1000 h 7 Air filter element Change 1000 h 8 Return Filter Change 1000 h 9 Suction filter Change 1000 h 10 Pilot circuit f...

Page 176: ...ondenser Check daily 85 V belt Check daily 85 Exhaust system leakage Check daily 86 Hydraulic oil level Check daily 86 Water separator Check daily 87 Bucket bolt and linkage bolt Grease daily 87 Lubri...

Page 177: ...condenser Check daily 85 V belt Check daily 85 Exhaust system leakage Check daily 86 Hydraulic oil level Check daily 86 Water separator Check daily 87 Bucket bolt and linkage bolt Grease daily 87 Lub...

Page 178: ...er 2000 h EGR system Check Please contact your KUBOTA dealer 3000 h Turbo charger Check Please contact your KUBOTA dealer 3000 h Diesel particle filter 5 Clean Please contact your KUBOTA dealer 6000 h...

Page 179: ...the event of a warning or every 6000 operating hours 6 If you feel a drop in the air conditioner airflow replace the interior air filter with a new one regardless of its replace ment intervals DPF di...

Page 180: ...dealer 2000 h EGR system Check Please contact your KUBOTA dealer 3000 h Turbo charger Check Please contact your KUBOTA dealer 3000 h Diesel particle filter 5 Clean Please contact your KUBOTA dealer 60...

Page 181: ...the event of a warning or every 6000 operating hours 6 If you feel a drop in the air conditioner airflow replace the interior air filter with a new one regardless of its replace ment intervals DPF dif...

Page 182: ...verified NLGI 2 grease can also be used Further information can be found on Japan Lubricating Oil Society s website JALOS A fuel with sulphur content not greater than 10 mg kg 20 mg kg at point of fi...

Page 183: ...the air inlet for the air conditioner and heater system at the swivel frame Before cleaning shut down the engine and secure it against starting If a steam cleaner is used for cleaning the machine do...

Page 184: ...FULL mark 1 Close the expansion tank cover Close the engine compartment cover If the coolant expansion reservoir was completely empty check the coolant level in the radiator Open the side cover page...

Page 185: ...4 from the engine side with a water jet or a compressed air pistol Do not use high pressure clean ers Pay particular attention to the space between the radiators and the condenser as leaves tend to ac...

Page 186: ...184 W9272 8135 1 05 2020 Maintenance Dusting cover In cleaning the cooler remove the dusting cover to discharge dust out of the machine Remove the screws 1 Remove the dusting cover 2 1 1 2 2...

Page 187: ...2 and tensions the V belt 1 Press in the V belt at position A The V belt must give way by approx 12 15 mm pressure 6 7 kg Tighten the lock nut 3 After adjusting check the V belt Fan Alternator V belt...

Page 188: ...n cracks bulges hard spots of all coolant hoses 1 on the engine and to the radiator or to the heater fan and ensure that they are tight and the clamps 2 are securely fastened If nec essary have the ho...

Page 189: ...drain Remove the coolant expansion reservoir 1 and drain it clean ing it if necessary Refit the reservoir Fill the premixed coolant into the radiator and expansion reser voir Start the engine page 96...

Page 190: ...m below the engine for maintenance purpose Before attaching it back into position pass the drain hose 2 of engine oil tray 3 through the cover s hole Caution The engine oil and the oil filter are very...

Page 191: ...e page 96 The engine oil pressure indicator must go out as soon as the engine has started If this does not happen switch the engine off immediately and contact trained personnel Let the engine run at...

Page 192: ...For the replacement pull the internal filter element out and immediately insert a new filter element Clean the outer filter element with compressed air max 5 bar from the inside out without damaging t...

Page 193: ...s Close the engine compartment cover While changing the fuel filter be careful not to allow dust or dirt into the fuel line and the fuel filter Always remove spilled fuel immediately Place a cleaning...

Page 194: ...ion Loosen the venting screw 3 Loosen the drain valve 6 and drain the impurities Close the drain valve Tighten the venting screw Make sure that the sensor cable plug 5 is connected Switch the shutoff...

Page 195: ...nd tighten it by hand Switch the shutoff valve to the ON position Bleed the fuel system page 149 Check the water separator for leaks Connect sensor cable plug Close the engine compartment cover While...

Page 196: ...place if damaged Screw on B the filter cup and tighten it by hand Switch the shutoff valve to the ON position Bleed the fuel system page 149 Check the water separator for leaks Connect sensor cable pl...

Page 197: ...ice cover page 156 Place a container with a minimum capacity of 12 l under the fuel drain valve Open drain valve 1 and drain the water Close the drain valve Dispose of fluid in the container according...

Page 198: ...he air intake hoses check Check all accessible fuel lines 1 air intake hoses 2 and clamps 3 to ensure that they are not damaged and are firmly seated Repair or replace damaged parts 1 1 3 3 3 3 1 1 1...

Page 199: ...raulic oil tank cover 2 While replacing the return filter be careful not to allow dust or dirt into the hydraulic oil tank Always remove spilled hydraulic oil immediately Pay attention to utmost clean...

Page 200: ...ove the cover 4 Take the breather filter 5 out of the hydraulic tank cover and replace it with a new one Tighten the cover 4 and the nut 3 and install the cap nut 1 Close the side cover Dispose of cle...

Page 201: ...engine page 96 Let the engine run at idle speed to warm up then stop it page 99 Check the hydraulic oil level add oil if necessary Close the side cover While changing the pilot circuit filter be care...

Page 202: ...raulic oil tank cover 2 While replacing the hydraulic oil and the suction filter be careful not to allow dust or dirt into the hy draulic oil tank Always remove spilled hydraulic oil immediately Pay a...

Page 203: ...lter assembly Install the return filter page 197 Check the condition of the sealing ring of the hydraulic oil tank cover Replace if necessary Attach hydraulic oil tank cover and screw on tightly Fill...

Page 204: ...to release pressure Reinstall the cap nut While replacing the hydraulic oil and the suction filter be careful not to allow dust or dirt into the hy draulic oil tank Always remove spilled hydraulic oil...

Page 205: ...filler plug 1 from the hydraulic oil tank Insert a clean funnel with a strainer into the filler plug opening Open the engine compartment cover page 154 Press in the hexagonal plug 2 and the black plas...

Page 206: ...ine page 96 and operate all control functions Operate the boom arm bucket and boom swing mechanism so that all hydraulic cylinders are extended half way Lower the dozer onto the ground See the Placing...

Page 207: ...ry considerably For refillable type batteries never charge or use when the electrolyte level is below the LOW ER lower limit level mark Check the fluid level regularly and top up distilled water as re...

Page 208: ...the affected battery with a battery tester and contact trained personnel Battery acid is very caustic Avoid contact with battery acid under all circumstances If clothing skin or eyes have come in cont...

Page 209: ...in the swivel frame and fasten it with the battery retainer Make sure that the battery is in stalled tightly Do not operate the machine with a loose battery Connect the positive cable clamp to the pos...

Page 210: ...of approx 50 g of grease approx 20 shots with the grease gun Refer to the Operating materials section page 180 When moving the swivel frame make sure no person or material is in the swivel area Turn t...

Page 211: ...m and dozer as shown in the figure Stop the engine remove the key Refer to the Op erating the controls during excavation work section page 117 Lubricate all greasing points with grease see the Operati...

Page 212: ...ler tension check The crawler seam 3 is on the top halfway between the idler 1 and sprocket 2 Check the crawler sag as shown in the figure Crawler sag A 10 15 mm If the crawler sag is more than 15 mm...

Page 213: ...rawlers Remove the crawler tensioner cover 3 Position the grease gun on the grease fitting 1 Pump the grease gun until the specified crawler tension is ob tained Loosening the crawlers Cautiously unsc...

Page 214: ...cities 0 9 l Refit the oil filler plug and the set screw with a new sealing ring and tighten it Perform the same service on the second drive unit Interior air filter check clean change Open the heatin...

Page 215: ...rvice cover Clean only with filtered air at max 2 bar pressure Always wear eye protection when working with com pressed air Take care not to damage the filter when installing it A damaged filter would...

Page 216: ...he pipes and hoses of the heating and air conditioner systems are in serviceable condition no cracks bulges or hard spots and are firmly seated If there are any worn or damaged parts found consult you...

Page 217: ...the refrigerant level ac cording to the table below If the refrigerant level is too low please contact your KUBOTA dealer Close the side cover Avoid eye and skin contact The refrigerant causes severe...

Page 218: ...og dial to the right until Log record is selected in the display Press Jog dial enter switch The Log record appears in the display A calendar appears in the display Press Jog dial enter switch Rotate...

Page 219: ...0 12 8 123 6 147 1 12 6 15 0 166 7 196 1 17 0 20 0 M 16 166 7 191 2 17 0 19 5 196 1 225 6 20 0 23 0 259 9 304 0 26 5 31 0 M 20 333 4 392 3 34 0 40 0 367 7 431 5 37 5 44 0 519 8 568 8 53 0 58 0 Diamet...

Page 220: ...13 0 105 8 129 4 10 8 13 2 1 1 4 220 5 230 3 22 5 23 5 Size of the steel pipe OD ID thickness Tightening torque Nm kgf m Wrench size guide number Comments 8 6 1 mm 0 31 0 24 0 04 in 29 4 39 2 3 0 4 0...

Page 221: ...1 3 7 4 5 With O ring Tightening torque for connections 58 8 78 5 6 8 19 mm 0 75 in 12 mm 0 47 in 3 8 68 6 73 5 7 0 7 5 With O ring Tightening torque for connections 78 5 98 1 8 10 23 mm 0 91 in 15 m...

Page 222: ...220 W9272 8135 1 05 2020 Maintenance...

Page 223: ...s appraisal and evaluation neutral and must not be influenced by personal eco nomic or operational interests The inspection is a visual and functional check of all components for condition and complet...

Page 224: ...222 W9272 8135 1 05 2020 Safety inspection...

Page 225: ...ve a sufficient bearing capacity for the weight of the machine The storage place must be frost free dry and well ventilated Measures before taking out of service Clean and dry the machine thoroughly p...

Page 226: ...om the piston rods of the hydraulic cylinders Install the battery page 207 Check the safety devices for proper operation Carry out the pre operational services page 83 If failures are detected during...

Page 227: ...additional pipe safety valve must be installed in accordance with EN 474 1 page 33 The lifting attachment is to be fastened to the attachment or to other parts of the excavator in such a manner as to...

Page 228: ...s The operator must pick up the load at the centre avoid sudden movements make sure the load does not swing Do not lift loads which exceed the values indicated in the lifting capacity tables Always ob...

Page 229: ...Lifting capacity of the excavator W9272 8135 1 227 05 2020 Lift point radius Vertical axis Lift point height Lift point...

Page 230: ...apacity of the excavator Max lifting load during swivel operation is 360 2 7m 0 1 2 3 4 5 6 0 1 2 3 4 1 2 3 4 5 6 m 360 X m kg X 1 45m 4 5 m 4 m 3 m 2 m Z X MAX 540 640 950 Z 2 530 610 910 1440 Z 1 47...

Page 231: ...80 14 7 1 50 12 4 1 26 1500 17 4 1 77 25 6 2 61 28 6 2 92 32 3 3 30 24 8 2 53 19 9 2 03 16 3 1 67 13 5 1 38 10 8 1 10 2000 20 0 2 04 31 8 3 25 36 4 3 71 26 9 2 75 21 1 2 15 17 1 1 75 14 0 1 43 11 0 1...

Page 232: ...0 14 7 1 50 12 4 1 26 1500 17 4 1 77 25 6 2 61 28 6 2 92 32 3 3 30 24 8 2 53 19 9 2 03 16 3 1 67 13 5 1 38 10 8 1 10 2000 20 0 2 04 31 8 3 25 36 4 3 71 26 9 2 75 21 1 2 15 17 1 1 75 14 0 1 43 11 0 1 1...

Page 233: ...so to use this software This product includes OSS that is made available under the GNU General Public License GPL LGPL or the Mozilla Public License 2 0 MPL If you purchase this product you may obtai...

Page 234: ...232 W9272 8135 1 05 2020 Software information...

Page 235: ...Software information W9272 8135 1 233 05 2020...

Page 236: ......

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Kubota U50-5, Operating Instructions Manual

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