12.
Tighten the filter cap (3).
Tightening torque: 20 to 25 Nm {2.0 to 2.5 kgm}
13.
Install the cover (2) with bolts (1).
EVERY 4000 HOURS MAINTENANCE
Maintenance for every 250, 500, 1000, and 2000 hours services should be performed out at the same time.
REPLACE DEFINED LIFE PARTS
Material quality of these parts can change as time passes and they are likely to wear out or deteriorate.
Replace them every 2 years or every 4000 hours, whichever comes sooner.
DEFINED LIFE PARTS LIST
No.
Periodical replacement parts
1 Fuel system Fuel hose
Spill hose
Ask your Komatsu distributor
for replacement.
2
Engine lubrication system Turbocharger lubrication hose
Engine oil filter hose
3 Steering system High pressure circuit hose
4 Brake system Brake oil pressure hose
Retarder control valve rubber parts
5 Torque converter, trans-
mission system
Transmission circuit hose
6 Work equipment hydraulic
system
Main pump delivery hose
Main pump delivery hose other than described
above
Main pump LS hose
Hose for hydraulic drive fan
External work equipment hose
• Hoist circuit hose
7 Others PPC accumulator
METHOD FOR CHANGING OIL IN STEERING AND HOIST OIL TANK
WARNING
• Immediately after the engine is stopped, its parts and oil are still very hot and may cause burn in-
jury.
Wait for the temperature to go down, and then start the work.
• When removing the oil filler cap, the oil may spurt out. Turn it slowly to release the internal pres-
sure, then remove it carefully.
Refill capacity: 120 ℓ
1.
Lower the dump body.
MAINTENANCE PROCEDURE MAINTENANCE
4-78
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