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MAINTENANCE PROCEDURE
9.
Check the hydraulic oil level.
After adding oil, check that the oil is at the specified level by referring to "METHOD FOR CHECKING OIL
LEVEL IN HYDRAULIC TANK, ADDING OIL (4-46)".
10. After bleeding air, install the cover (2) with bolts (1) (4 pieces).
11. Check the HST oil filter for oil leakage.
When the HST oil filter clogging caution lamp lights up, replace the HST filter element even if it has not yet been
used for 1000 hours or 1 year.
METHOD FOR LUBRICATING CENTER HINGE PIN
1.
By using a grease pump, pump in grease through the
grease fittings (1) and (2).
(1): Upper part of center hinge pin (1 place)
(2): Lower part of center hinge pin (1 place)
2.
After greasing, wipe off any old grease that is pushed out.
METHOD FOR CHECKING ALL TIGHTENING POINTS OF ENGINE INTAKE PIPE
CLAMPS
Ask your Komatsu distributor for checking the tightening of the clamps between the air cleaner - turbocharger -
aftercooler - engine.
METHOD FOR CHECKING AND REPLACING ALTERNATOR BELT
•
Special tools are required for the replacement of the belt. Ask your Komatsu distributor to perform this work.
•
Since the auto-tensioner is installed, tension adjustment is not required.
If alternator drive belt shows the following conditions, it must be
replaced. Ask your Komatsu distributor to replace it.
•
When vertical flaw (2) that crosses horizontal flaw (1) is
found.
•
When a part of the belt has tears (3).
•
You do not need to replace the belt when it has only hori-
zontal flaw (4).
EVERY 2000 HOURS MAINTENANCE
Maintenance for every 50, 100, 250, 500, and 1000 hours service should be performed at the same time.
METHOD FOR CHANGING OIL IN HYDRAULIC TANK, CLEANING HYDRAULIC
TANK STRAINER
•
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: 80 ℓ
4-64
k
k
WARNING
MAINTENANCE
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