Kubota u25 Operator'S Manual Download | Manualshive

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36

MAINTENANCE

First operation

*1 When using a hydraulic breaker, change hydraulic oil and return filter according to the table on "Hydraulic Oil
Change (Including Exchange of the Suction Filter in the Hydraulic Tank)" under "EVERY 1000 SERVICE HOURS" in
the chapter "REGULAR CHECKS AND MAINTENANCE WORK".
*2 Clean and replace the air filter more frequently if used under dusty conditions. When the filter is very dirty from
dusty conditions, replace the filter.
*3 Replace only if necessary.
*4 Consult your local KUBOTA Dealer for this service.

A

The items listed above (@ marked) are registered as emission related critical parts by KUBOTA in the U.S.EPA
non-road emission regulation. As the engine owner, you are responsible for the performance of the required
maintenance on the engine according to the above instruction. Please see the Warranty Statement in detail.

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Summary of Contents for u25

Page 1: ...123 Taman Perindustrian Axis Seksyen 25 40400 Shah Alam Selan㷅or Darul Ehsan Malaysia Telephone 60 3 736 1388 Philippines KUBOTA PHILIPPINES INC 232 Quirino Hi㷅hway Baesa Quezon City 1106 Philippines Telephone 63 2 422 3500 Taiwan SHIN TAIWAN AGRICULTURAL MACHINERY CO LTD 16 Fen㷅pin㷅 2nd Rd Taliao Shian㷅 Kaohsiun㷅 83107 Taiwan R O C Telephone 886 7 702 2333 Thailand SIAM KUBOTA CORPORATION CO LTD ...

Page 2: ...tructures SAE Society of Automotive Engineers USA TPSS Two Pattern Selection System AI Auto Idle ABBREVIATION LIST California Proposition 65 WARNING IMPORTANT The engine in this machine is not equipped by the manufacturer with a standard spark arrester It is a violation of California Public Resource Code Section 4442 to use or operate this engine on or near any forest covered brush covered land or...

Page 3: ...aise Boom lower Arm out Arm in Bucket in Bucket dig rollback Boom swing left Boom swing Right Dozer raise Dozer lower Operation direction of control lever Operation direction of control lever Read operator s manual Lock Unlock GENERAL SYMBOLS The instruments and operation elements have been marked with a series of symbols in order to simplify the opera tion of your excavator These symbols are list...

Page 4: ...ates a potentially hazardous situation which if not avoided could result in minor or moderate injury Indicates that equipment or property damage could result if instructions are not followed This symbol the industry s Safety Alert Symbol is used throughout this manual and on labels on the machine itself to warn of the possibility of personal injury Read these instructions carefully It is essential...

Page 5: ... 11 Display Selector Switch 12 Battery Charge Lamp 14 Engine Oil Pressure Warning Lamp 14 Glow Lamp 15 LCD Display for Normal Operation 15 LCD Display for Warning 16 Warning Lamp 17 Checkpoints after Starting the Engine 17 STARTING THE ENGINE UNDER COLD CONDITIONS 18 STOPPING THE ENGINE 18 Engine Stop Lever 18 STARTING WITH AN AUXILIARY BATTERY 18 Observe Following Guidelines when Starting with an...

Page 6: ...37 Check Engine Oil Level 38 Check Hydraulic Oil Level 38 Checking Coolant Level 39 Washing Whole Machine 39 Lubrication Points 39 Check Fan Belt 40 Cleaning of Engine and Electrical Wiring 40 Check Radiator and Oil cooler 40 REGULAR CHECKS AND MAINTENANCE WORK 41 EVERY 50 SERVICE HOURS 41 Draining the Water from the Fuel Tank 41 Draining Water Separator 41 Battery 42 Battery Charging 43 Greasing ...

Page 7: ...Air Filter Element 51 EVERY 1500 SERVICE HOURS 51 Checking Fuel Injection Nozzle Injection Pressure 51 EVERY 2000 SERVICE HOURS 51 Changing Front Idler and Track Roller Oil 51 Checking the Alternator and Starter Motor 51 EVERY 3000 SERVICE HOURS 51 Checking Injection Pump 51 ANNUAL SERVICING 52 Electrical Wiring and Fuses 52 Checking the Electrical Circuit 52 BIENNIAL SERVICING 52 Replacement of R...

Page 8: ......

Page 9: ... I Operator Protective Guards of Top Guard Level I OPG Top Guard Level I in accordance with ISO10262 is equivalent in definition to FOPS Falling Object Protective Structure Always use the seat belt when the machine is equipped with a ROPS OPG Top Guard Level I Do not modify structural members of ROPS by welding drilling bending grinding or cutting as this may weaken the structure If any component ...

Page 10: ... shoes eye protection ear protection working gloves etc as necessary and as prescribed by law or statutes 11 Do not allow passengers to ride on any part of the excavator at anytime The operator must remain in the excavator seat during operation 12 Check mechanical parts for correct adjustments and wear 13 Keep your excavator clean Heavy soiling grease dust and grass can cause fires accidents or in...

Page 11: ...wer the dozer blade during digging Keep the bucket as low as possible while driving uphill Turn slowly on slopes at reduced speed Do not place the excavator near the edges of trenches and banks as the earth can give away due to the weight of the excavator ALLOWABLE CLIMBING ANGLE 36 20 deg ALLOWABLE ANGLE IN CASE OF CROSSING SIDEWAY 27 15 deg 8 Watch out at all times for the area to which the exca...

Page 12: ...se the excavator to move and may cause a serious accident 6 If the excavator is to tow another machine make sure the load is smaller than the strength of the hook tow chain or cable 7 Do not use hooks on the roof of canopy or CAB for lifting the excavator Before doing maintenance work on the excavator place the machine on even solid ground lower the attachments to the ground stop the engine and re...

Page 13: ... a doctor immediately This fluid can cause gangrene or serious allergic reactions 10 To avoid environmental damage from acid and heavy metals do not throw the battery away 11 Observe all laws and regulations concerning the disposal of used oil coolants solvents hydraulic fluids battery acids and batteries 12 To avoid fire do not heat the hydraulic components tanks pipes hoses cylinders before they...

Page 14: ...s as well as from area in proximity to the engine A Inspect all fuel lines and hydraulic hoses for wear or for deterioration Replace them immediately if they begin to leak A Examine electrical wiring and connectors frequently for damage Repair any wires that are loose or frayed before operating the machine Clean all electrical connections and tighten all electrical connections as necessary A Inspe...

Page 15: ... 7 SAFE OPERATION ...

Page 16: ...SAFE OPERATION 8 ...

Page 17: ... 9 SAFE OPERATION ...

Page 18: ...SAFE OPERATION 10 ...

Page 19: ... your KUBOTA dealer 4 If a component with danger warning and caution label s affixed is replaced with new part make sure new label s is are attached in the same location s as the replaced component 5 Mount new danger warning and caution labels by applying on a clean dry surface and pressing any bubbles to outside edge 7 CARE OF DANGER WARNING AND CAUTION LABELS 1 Code No RC418 5725 1 Both sides Do...

Page 20: ......

Page 21: ...routine maintenance can be done by yourself Your KUBOTA dealer is responsible for servicing and the delivery of spare parts When ordering spare parts from your KUBOTA dealer always mention the serial number of the excavator and the engine Note these numbers right away in the supplied lines Model Serial No Excavator Engine Dealer s name To be filled in through the owner 1 Serial No 1 Engine serial ...

Page 22: ...pe Water cooled 3 cylinder diesel engine Model name KUBOTA D1105 E4 BH 1 Total displacement cc cu in 1123 68 5 Engine power SAE gross kW HP 15 6 20 9 Net kW HP 14 8 19 8 Rated speed rpm 2400 Low idle speed rpm 1300 to 1400 Performance Unit swing speed rpm 9 8 Travel speed Fast km h mph 4 5 2 8 Slow km h mph 2 5 1 6 Ground kPa pressure kgf With operator psi 22 9 0 23 3 27 Climbing angle deg 36 20 A...

Page 23: ...N OF MACHINE PARTS DEPICTED CONTENTS 1 Arm 2 Bucket cylinder 3 Bucket link 4 Bucket 5 Swing bracket 6 Dozer cylinder 7 Dozer blade 8 Arm cylinder 9 Boom 10 Operator s seat 11 Engine hood 12 Drive sprocket 13 Front idler 14 Working light option ...

Page 24: ... INSTRUMENT PANEL AND CONTROL ELEMENTS B Instrument Panel Switches DEPICTED CONTENTS 1 Starter switch 2 LCD display 3 Working light switch 4 Horn switch 5 Travel speed switch 6 User setting switch switch 2 7 Display selector switch switch 3 ...

Page 25: ...cator light 2 Aux operation lamp 3 Periodic check lamp 4 Clock setting request lamp 5 Glow lamp 6 Remaining fuel warning lamp 7 Engine oil pressure warning lamp 8 Battery charge lamp 9 Coolant temperature warning lamp 10 Warning lamp 11 Fuel gauge 12 Coolant temperature gauge 13 LCD display ...

Page 26: ...1 Throttle lever 2 Drive lever left 3 Drive lever right 4 Control lever for front attachments left 5 Control lever for front attachments right 6 Dozer control lever 7 Service port pedal 8 Boom swing pedal 9 Lock lever D When the lock lever pulled up prevents inadvertent machine movement ...

Page 27: ...ts in the chapter on maintenance Check fuel level Check engine oil level Check hydraulic fluid level Check air filter for clogging Check all control lamps indicators revolution counter and hour meter Check the light system Check the condition of the safety and warning labels See DANGER WARNING AND CAUTION LABELS in SAFE OPERATION SLIDING THE SEAT To avoid personal injury A Lock the lever for attac...

Page 28: ...ay locks automatically For closing lift up the hood and release the stay Push down the hood until it locks automatically BOpening and Closing of the Fuel Tank Cover To open the tank cover first insert the key into the key slot and turn it counterclockwise to unlock then open the tank cover upward For closing return the tank cover to original position and turn the key clockwise to lock then remove ...

Page 29: ...trol Lever Lock A When the excavator is not used or left unattended be sure to place the lock lever in position Lock The attachment control lever lock is located on the left side 1 Seat sliding lock lever 2 Lock lever for attachment control A Sliding forward B Lock 1 Tool Box 2 Grease gun 1 Operator s manual 1 Lock lever for attachment control A Lock B Unlock ...

Page 30: ...ot repaired or revised If any structural member of the ROPS OPG Top Guard Level I is damaged replace the entire structure at your local KUBOTA dealer Check the seat belt daily and replace it if damaged or frayed A Do not remove the ROPS OPG Top Guard Level I except for service Install the ROPS OPG Top Guard Level I correctly before you operate the machine again A Do not install any attachments tha...

Page 31: ...he operator should not depend solely on the warning lamps but should always conduct the routine checks see MAINTENANCE Start the engine in the following manner 1 Before starting the engine make sure that all control levers are in the neutral positions 2 Pull the lock levers all the way back lock position A Put the throttle lever towards 3 Insert the key into the starter switch and turn it to the p...

Page 32: ...r 10 seconds C Setting the clock Selecting the clock setting mode 1 Turn the starter key to the position RUN 2 Press the user setting switch switch 2 1 3 Select the clock setting mode by pressing the display selector switch switch 3 2 and the clock setting request lamp on the instrument panel lights up A Press switch 3 2 for a long time and the year month day hour and minute will be selected in th...

Page 33: ...meric setting will be larger Setting the day Press switch 2 and the numeric setting will be smaller Press switch 3 and the numeric setting will be larger Changing the AM PM system to the 24 hour system Select the AM PM system or 24 hour system by pressing switch 3 Setting the hour Press switch 2 and the numeric setting will be smaller Press switch 3 and the numeric setting will be larger Switch 2 ...

Page 34: ...gets started the lamp goes out A If there is disconnection or failure in the charging system when the key is turned to RUN the following symbol will appear BEngine Oil Pressure Warning Lamp The engine oil pressure warning lamp lights up due to failure of the lubricating system with the engine running When the starter switch is turned ON with the engine off this lamp lights up and when the engine s...

Page 35: ...entarily as the engine starts This is not an error BLCD Display for Normal Operation C Fuel gauge To avoid personal injury A Before adding fuel be sure to stop the engine A Be sure to keep open flame away from the machine Otherwise a fire may result If the fuel in the tank goes below the prescribed level the warning lamp will flash If this should happen during operation refuel as soon as possible ...

Page 36: ...e warning lamp The engine oil pressure warning lamp lights up due to failure of the lubricating system with the engine running When the starter key is turned to RUN position with the engine off this engine oil pressure lamp lights up warning lamp blinks and when the engine starts the lamps go out If the lamp stays on with the engine running stop the engine and check the engine oil level C Battery ...

Page 37: ...e is emitting steam 4 Make sure there is no risk of getting burned Then remove the cause of overheat referring to TROUBLESHOOTING Finally get the engine restarted BCheckpoints after Starting the Engine After starting the engine but before starting operation check the following points 1 Put the throttle lever in position LOW and let the engine idle for approx five minutes This allows the engine lub...

Page 38: ...e the excavator under full load before the engine has warmed up enough STOPPING THE ENGINE To avoid personal injury or death A Do not keep the bucket or dozer in the lifted position as a person could accidentally touch the levers and cause serious accidents 1 After slowing the engine to idle turn the key to STOP 2 Remove the key 3 Pull the lock lever to Lock position BEngine Stop Lever To avoid pe...

Page 39: ...to the plus terminal of the auxiliary battery 7 Connect the black cable to the minus terminal of the auxiliary battery 8 Connect the other end of the black cable coming from the auxiliary battery to the excavator frame as far away as possible from the low battery 9 Start the engine of the helping machine and let it run for a while Start the excavator with the low battery 10 Disconnect the jumper c...

Page 40: ... metal particles are generated and cause damage and shorten the life of many components Pay attention to the oil change intervals and complete them sooner than later See REGULAR CHECKS AND MAINTENANCE WORK section for more details on the oil change intervals BSeat Belt To avoid personal injury or death A Always use the seat belt with a ROPS OPG Top Guard Level I protection structure Adjust the sea...

Page 41: ...tched on by pressing the switch C Night operation To avoid personal injury A Visibility is reduced in darkness therefore the work light alone may not be enough In which case prepare additional stationary artificial lighting observe safety rules as well as special regulations for night work BTravel Buzzer Option When you handle the drive levers the buzzer sounds at the same time or before the excav...

Page 42: ...n selected by operating slowly BPattern Change 1 Loosen the lever lock knob 2 and slide it to the direction a and position the pattern selector lever 1 to the desired position 2 Slide the lever lock knob 2 to the direction b and tighten it 1 Pattern selector lever Two Pattern Selection System TPSS 2 Lever lock knob 3 Pattern A 4 Pattern B a UNLOCK b LOCK Lever Position Pattern A Pattern B Attachme...

Page 43: ...e oil warms up To lower the boom push the attachment control lever forward A When lowering the boom make sure that it does not hit the dozer and that the bucket teeth do not touch the dozer OPERATION OF THE ARM Pull back the attachment control lever and the arm will be pulled in To move the arm out push the control lever towards the front A When pulling in the arm the movement may stop for a short...

Page 44: ...r and the swing motor Additionally the life of the excavator will be shortened 1 Move the control lever to the left and the upper structure will turn to the left 2 Move the control lever to the right and the upper structure will turn to the right BOOM SWING OPERATION 1 Flip the pedal lock up to unlock the pedal 2 Step on the left side of the pedal to swing the boom to the left 3 Step on the right ...

Page 45: ... are removed to connect attachments drain approx 100 cc of oil per side For breaker choices contact your dealer DRIVING To avoid personal injury or death A Before starting the engine make sure that no one is near the excavator A Before operating the excavator check the track direction Idler and dozer blade to the front of the excavator 1 Adjust the engine speed from idling to an intermediate speed...

Page 46: ... place a safety block or safety post to prevent the machine from turning over Keep the lock lever for attachment control in the LOCK position BTravel Speed Switch Travel speed will increase when this switch is pushed down Switching the dual travel speed 1 Press the travel speed switch The buzzer beeps and the travel speed changes from first speed to second The symbol lights up 2 Press the travel s...

Page 47: ...ection of the arrow of the illustration below 2 Pull the left drive lever backward the excavator will turn in the direction of the arrow of the illustration below C Change of Direction while Travelling 1 While travelling forwards bring the left drive lever in the neutral position the excavator will turn in the direction of the arrow of the illustration below 2 While travelling backwards bring the ...

Page 48: ...ling up or down a slope use extra caution and follow the instructions below While travelling uphill keep the lower edge of the bucket approx 20 to 40 cm 8 to 16 in above the ground Although the KUBOTA excavator will not slip easily because of the tracks it is safer to let the bucket slide over the ground while travelling downhill Always choose slow speed for uphill and downhill travelling UPHILL T...

Page 49: ...r Make sure that the boom cylinder does not hit the dozer when doing deep excavation If necessary swing around so that the dozer is in the back of the machine A Pay attention when pulling in the bucket When pulling in the bucket for driving or transportation avoid hitting the dozer A Avoid collisions When moving the excavator pay attention that the dozer does not collide with obstructions such as ...

Page 50: ...ould be damaged when swinging around the upper body A Do not jack up the machine using its boom to load or unload the excavator from the truck Dangerous situation could arise B Transporting on a Truck To avoid personal injury or death A After loading the machine on the truck lower the bucket and dozer onto the truck bed Prepare a platform to load or unload the excavator Take following steps when u...

Page 51: ...NG THE EXCAVATOR ON A TRUCK 5 Block the tracks and tie down the excavator with suitable chains and approved method check appropriate state regulation 6 Before unloading raise the dozer and bucket from the truck bed ...

Page 52: ... steel cables or straps must be fixed in the middle of the hook 5 The load must be lifted vertically from the ground 6 Do not enter the working area under suspended loads and do not move the load over people The load must only be moved in an area where the balance can be easily maintained B Lifting Procedure for the Excavator To avoid personal injury or death A Do not use the hooks on the roof of ...

Page 53: ... Lift slowly and safely 2 Do not enter the excavator area when lifting 3 Lift the excavator horizontally Modify cable or strap connections according to needs Maximum strength for example JIS G 35 25 6X24 Excavator Weight 2520 kg Load Cable 8500 N Minimum Cable Diameter Safety factor 6 12 5 mm or more Diameter zinc plated not zinc plated 10 mm 3 8 45 8 KN 49 3 KN 12 5 mm 1 2 71 5 KN 77 KN 14 mm 9 1...

Page 54: ...element Outer element clean every 200 hrs 45 2 replace every 1000 hrs 51 2 Inner element replace every 1000 hrs 51 2 14 Greasing swing ball bearings every 200 hrs 45 15 Fuel filter cartridge replace every 500 hrs 48 16 Engine oil filter replace every 500 hrs 47 17 Drive unit oil change every 500 hrs 48 18 Hydraulic return filter element replace every 500 hrs 49 19 Hydraulic suction filter element ...

Page 55: ...filter element Outer element clean every 200 hrs 45 2 replace every 1000 hrs 51 2 Inner element replace every 1000 hrs 51 2 14 Greasing swing ball bearings every 200 hrs 45 15 Fuel filter cartridge replace every 500 hrs 48 16 Engine oil filter replace every 500 hrs 47 17 Drive unit oil change every 500 hrs 48 18 Hydraulic return filter element replace every 500 hrs 49 19 Hydraulic suction filter e...

Page 56: ...r filter more frequently if used under dusty conditions When the filter is very dirty from dusty conditions replace the filter 3 Replace only if necessary 4 Consult your local KUBOTA Dealer for this service A The items listed above marked are registered as emission related critical parts by KUBOTA in the U S EPA non road emission regulation As the engine owner you are responsible for the performan...

Page 57: ...un empty Air will enter the fuel system and must be purged before restarting A See PURGING OF THE FUEL SYSTEM in OTHER ADJUSTMENTS AND REPLACEMENTS A To prevent condensation water accumulations in the fuel tank fill the fuel into the tank before parking overnight If the fuel in the tank goes below the prescribed level the warning lamp will flash If this should happen during operation refuel as soo...

Page 58: ...ng the oil level BCheck Hydraulic Oil Level To avoid personal injury A Stop the engine and remove the key before checking the oil level A Before filling oil wipe away all sand and dust from around the oil port Make sure to use an identical type of hydraulic fluid A The excavator has been filled with hydraulic fluid before delivery See RECOMMENDED OILS Do not mix different oils 1 Park the excavator...

Page 59: ...le Machine A Do not wash the excavator with the engine running Water could enter the air filter and damage the engine Make sure that the air filter is kept dry A Remove the mud before washing the machine BLubrication Points To avoid personal injury A First lower all attachments on the ground then stop the engine and remove the key A While greasing take care not to step on the bucket teeth A When d...

Page 60: ...have gathered on the battery the cables and wiring the muffler or on the engine If so remove thoroughly BCheck Radiator and Oil cooler To avoid personal injury A Always stop the engine and remove the key before checking the radiator A Wear eye protection when cleaning with compressed air 1 Check if the fins and ribs are clogged If so clean with compressed air or steam 2 Check the rubber hoses for ...

Page 61: ... 1 Remove the drain plug on the underside of the body and drain water 2 Re tighten the drain plug BDraining Water Separator 1 Open the hood 2 When the separated water is being drained the red float moves upwards When the float reaches the line close the shutoff valve so that no fuel can run out Now loosen the ring nut and remove the cup and empty completely 3 Finally do not forget to open the shut...

Page 62: ...tidote External Rinse with plenty of water Internal Drink large quantities of water or milk Follow with milk of magnesia beaten egg or vegetable oil Call a physician immediately Eyes Rinse with plenty of water for 15 minutes and get prompt medical attention Keep batteries out of the reach of children A Before inspection or dismounting the battery be sure to turn the starter switch to the OFF posit...

Page 63: ...g Liquid shortage damages the battery Excessive liquid spill damages the excavator body 3 To slowly charge the battery connect the battery positive terminal to the charger s positive terminal and the negative to the negative one Then recharge in the standard fashion 4 A boost charge is only for emergencies It will partially charge the battery at a high rate and in a short time When using a boost c...

Page 64: ... loose fan belt the belt could slip and cause overheating of the engine or insufficient battery charging Check fan belt tension regularly A Should the fan belt break or jump off the indicator light for battery charge will light up Stop the engine and remove the key immediately BChecking Radiator Hoses and Clamps To avoid personal injury A Wait long enough for the radiator coolant to cool down Chec...

Page 65: ... Do not run the engine without the air filter BAir Filter Maintenance To avoid personal injury A Wear eye protection C Cleaning with compressed air Pressure of compressed air must be under 205 kPa 2 1 kg 30 psi and the cartridge should be blown clean from the inside to the outside until the dust deposits are remarkably reduced A If the air suction is still inadequate or the colour of the exhaust g...

Page 66: ...ol levers Grease the tip of the push rod and the rotating part of the link EVERY 500 SERVICE HOURS Do all 50 and 250 hour servicing at the same time BChanging Engine Oil Change the engine oil every 500 hours or every 1 year in the case that service hour is less than 500 hours To avoid personal injury A First stop the engine then remove the key and wait long enough for the oil to cool down 1 Remove...

Page 67: ... hours 1 Replace the oil filter cartridge at the same time as doing engine oil change 2 Remove the cartridge with the supplied filter wrench 3 Oil the O ring of the new oil filter cartridge lightly Then tighten the oil filter cartridge by hand 4 Fill engine oil to the specified level 5 Let the engine run for approx 5 min and make sure that the engine oil indicator lamp does not light up Then stop ...

Page 68: ...verflows out of the oil check port Oil change first oil change after 100 hrs then every 500 hrs or at least once a year 4 Use prescribed gear oil SAE 90 BReplacing Fuel Filter Cartridge To avoid personal injury A Keep fire away 1 Remove the filter with the supplied filter wrench 2 Add fuel to a new filter before installing 3 Apply a light film of fuel to the seal of the new filter and turn in tigh...

Page 69: ...ulic Pilot System for Hydraulic Pilot Types Dust and dirt collect on the concave side of the filter Clean the filter by letting hydraulic oil flow through from the convex side BReplacing the Hydraulic Pilot Filter Element To avoid personal injury A Before replacing the element wait long enough for the hydraulic fluid to cool down 1 Remove the arch cover 2 Remove the hydraulic oil tank cover 3 Remo...

Page 70: ...ders halfway out and lower the bucket on the ground 2 Remove the drain plug on the underside of the hydraulic tank and drain the oil 3 Remove the cover of the hydraulic tank 4 With a fork wrench or similar remove and exchange the suction filter 5 Retighten the drain plug 6 Fill oil through the oil filling opening on the top side of the tank 7 Let the engine run for approx 5 min and check the oil l...

Page 71: ...NCEA YEAR BReplacing Air Filter Element Open the engine hood and remove the dust cover Remove and replace the outer element and inner element with new elements When reassembling install the dust cover so that its TOP mark arrow faces up wards A Shorten the replacement period if the machine is used in dusty or sandy areas EVERY 1500 SERVICE HOURS BChecking Fuel Injection Nozzle Injection Pressure C...

Page 72: ... cap and allow enough time for the pressure in the system to be released Now remove the cap completely BReplacement of Radiator Hoses and Hose Clamps Replace radiator hoses and hose clamps every two years If the hoses are swollen hard or cracked they must be replaced earlier BChanging Radiator Coolant In case of long life coolant fluid Stop the engine then remove the key and wait until it has cool...

Page 73: ...loosely or not properly fitted overheating of the engine can result due to coolant fluid loss BReplacing Fuel Hoses and Hose Clamps Replace the hoses and clamps See Checking Fuel and Intake Air Line in EVERY 200 SERVICE HOURS BReplacing Intake Air line Replace the hoses and clamps if necessary See Checking Fuel and Intake Air Line in EVERY 200 SERVICE HOURS 1 Recovery tank A FULL B LOW Radiator 2 ...

Page 74: ...que must be between 98 to 108 N m 72 3 to 79 7 ft lbs A If the tracks are too tight wear is increased A If the tracks are too loose the track pads may collide with the sprocket and wear is increased The track may dislocate or come off A Clean the track after every use A Should the track tension be high due to sticking mud lift the track with the help of the boom arm and bucket idle the engine and ...

Page 75: ... the tracks will be tensioned too loosely and a further readjustment will be necessary A Rotate the track after adjustment one to two times to check the tension A Additionally following points are to be observed when adjusting rubber tracks 1 If the track loosen more than 25 mm 1 in readjust them 2 Check track tension 50 hours after initial use and readjust if necessary Check and adjust thereafter...

Page 76: ...chment to do a correct operation safely when other attachments are installed instead of Kubota specified bucket FUSES BReplacing Fuses 1 Remove the cover of the fuse box 2 Replace the burnt out fuse with a fuse having the same capacity BFuse Capacities and Circuits BSlow Blow Fuse Slow blow fuse is provided to protect the electrical circuits If the fusible link is blown check the electrical circui...

Page 77: ...necessary Purge the fuel system Abnormal exhaust gas color Poor fuel Use high quality fuel Too much engine oil Drain engine oil to prescribed oil level Water temperature too high Overheating Worn or torn fan belt Adjust or replace Coolant level too low Fill to prescribed level Radiator grill or fins are clogged Clean Coolant is contaminated with rust from the cylinder head or crank case Replace co...

Page 78: ...his message appears when the fuel level is low and prompts the operator to refuel Refuel the excavator 3 Periodic check soon notice This message appears 10 hours before the periodic check interval This message means that the regular service is due shortly Operate the machine as usual Ask your KUBOTA dealer about the relevant parts Run the maintenance procedure 4 Periodic check passed warning This ...

Page 79: ...load lever the indicator goes out 14 Oil pressure too low red The engine oil pressure is too low Stop the engine immediately The engine may have developed a fault Inform your KUBOTA dealer immediately 15 Overheat The machine is overheated and must cool off by idling Allow the machine to cool off by idling Do not switch the engine off as the coolant could then boil over Clean the radiator and check...

Page 80: ...erature sensor error red The coolant temperature sensor has developed a fault the coolant temperature gauge does not appear in the display Press the display selector switch to return to the default display The functions of the machine are stable but overheating cannot be excluded Inform your KUBOTA dealer immediately 19 20 Lever lock system error red The electrical system in the lock lever unload ...

Page 81: ... immediately 26 27 External 5 V system error red The 5 V sensor supply line has developed a system fault The main functions are not available The machine can be started and driven Do not perform any work with the machine Inform your KUBOTA dealer immediately 28 External 12 V system error red The 12 V sensor supply line has developed a system fault The main functions are not available The machine c...

Page 82: ...y in about 10 seconds A When the key is turned from OFF to RUN repeatedly 10 times the message disappears C In case the service hour meter replaced due to any trouble with it the meter is set to 0 Contact your KUBOTA dealer for details No Check points Measures Hour meter indicator Interval 50 100 250 500 600 750 1000 1 Engine oil change every 500 hrs 2 Hydraulic oil every 1000 hrs 3 Air filter ele...

Page 83: ... A Use permanent anti freeze or long life coolant A Drain the coolant completely and clean the inside of the radiator then fill with the water and anti freeze mixture A The anti freeze acts as an anti corrosive it is not necessary to add an additive to the water and anti freeze mixture A See Coolant check under DAILY CHECKS in MAINTENANCE for radiator fill volumes PROCEDURE AFTER DONE WORK Clean t...

Page 84: ...the excavator on the planks and cover completely 2 Do an oil change and grease the excavator 3 Heavily grease the visible section of the cylinder rods 4 Remove the battery and store indoors 5 If it is expected that the temperature will sink below the 0 32 mark add anti freeze or drain coolant completely A Wash the excavator after stopping the engine If you wash the excavator while running the engi...

Page 85: ...ystem use only a KUBOTA genuine hydraulic hose Since especially marks are super wear resistance hoses please surely use a KUBOTA genuine hydraulic hose Inspection Interval Check points Daily Checks Oil leak at fuel and hydraulic hose connections and points Every month Oil leak at fuel and hydraulic hose connections and points Damages at fuel and hydraulic hose cracks chafing Every year Oil leak at...

Page 86: ...S RECOMMENDED OILS 1 Before delivery the hydraulic oil used was Shell Tellus S2M46 2 Use engine oil API service classification CF CF 4 or better and SAE10W 30 3 Use SAE 90 API GL 4 GL 5 as drive unit oil for all seasons ...

Page 87: ... SAE 10W 30 SAE 15W 40 0 to 25 32 to 77 SAE 20 or SAE 10W 30 SAE 15W 40 Below 0 32 SAE 10W or SAE 10W 30 SAE 15W 40 A Refer to the following table for the suitable API classification engine oil according to the engine type with internal EGR external EGR or non EGR and the fuel Fuel used Engine oil classification API classification Oil class of engines except external EGR Oil class of engines with ...

Page 88: ... F G H I J U25 CANOPY 590 23 2 620 24 4 1500 59 1 760 29 9 1300 51 2 1500 59 1 4530 178 3 3200 126 0 2810 110 6 1960 77 2 K L M N O P Q R S U U25 CANOPY 1900 74 8 2420 95 3 360 14 2 320 12 6 3160 124 4 990 39 0 4150 163 4 4670 183 9 4780 188 2 800 31 5 ...

Page 89: ...ed to boom and dozer blade cylinders A The values mentioned in the table are valid only on even hard grounds When lifting on soft ground the machine can tip over due to the load being concentrated only on one side of the machine A The table values are calculated at the end of the arm without the bucket In order to find the allowable loads for machines with bucket the bucket weight must be subtract...

Page 90: ...70 LIFTING CAPACITY ...

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