Komatsu HM400-5, Operation & Maintenance Manual

Page: 392 / 446

METHOD FOR LUBRICATING DRIVE BELT TENSION PULLEY ASSEMBLY OF
COMPRESSOR FOR ALTERNATOR AND AIR CONDITIONER
1.
By using a grease pump, pump in grease through the
grease fittings shown by arrows.
2.
After greasing, wipe off any old grease that is pushed out.
EVERY 2000 HOURS MAINTENANCE
Maintenance for every 50, 250, 500 and 1000 hours service should be performed at the same time.
METHOD FOR CHANGING OIL IN FINAL DRIVE CASE
k k
WARNING
• Immediately after the engine is stopped, its parts and oil are still very hot and may cause burn in-
jury.
Accordingly, wait until they have cooled down before starting the work.
• If there is remaining pressure inside the case, the oil or plug may jump out.
Turn the plug slowly to release the pressure, then remove it carefully.
• Front final drive case (each of right and left) refill capacity 5.5 ℓ
• Center final drive case (each of right and left) refill capacity 4.5 ℓ
• Rear final drive case (each of right and left) refill capacity 5.5 ℓ
Items to be prepared
Container to receive drained oil
Change the oil of all the final drive cases (front, center, rear).
Change the oil according to the following procedure.
1.
Stop the machine so that the TOP embossed mark is at
the top and drain plug (P) is at the bottom.
2.
Remove drain plug (P) and drain the oil.
3.
After draining the oil, tighten the drain plug.
4.
Add the specified amount of oil through the hole of plug
(G).
5.
After adding oil, check that the oil level is in the specified
range.
For the method to check the oil level in the final drive case,
see “METHOD FOR CHECKING OIL LEVEL IN FINAL
DRIVE CASE, ADDING OIL (4-56)”.
MAINTENANCE PROCEDURE MAINTENANCE
4-70