Every 1000 Hours Maintenance; Method For Checking Oil Level In Final Drive Case, Adding Oil - Komatsu HM400-5 Operation & Maintenance Manual

MAINTENANCE PROCEDURE
2.
Remove mounting bolts (2) of cover (1) on the right side of
the machine.
3.
Remove cover (1).
4.
Blow off mud, dirt, leaves, etc. in aftercooler fins (3) with
compressed air.
Steam or water may be used instead of the compressed
air.
However, when performing powerful steam cleaning (high-
pressure machine washing) of the heat exchanger (radia-
tor), maintain sufficient distance from the machine.
If steam cleaning (high-pressure machine wash) is per-
formed at close distance, there is a danger that the internal
fins of the heat exchange equipment may be deformed,
and this will cause early clogging and breakage of the
equipment.
5.
Perform the following check.
• Check the rubber hoses. If they are cracked or fragile,
replace them.
• Check the hose clamps for looseness.

METHOD FOR CHECKING OIL LEVEL IN FINAL DRIVE CASE, ADDING OIL

• 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.
Check the oil level and add oil to all the final drive cases (front, center, rear).
1.
Stop the machine so that the TOP embossed mark is at
the top and drain plug (P) is at the bottom.
2.
Remove plug (G).
3.
Check that the oil level is near the lower edge of the plug
hole.
If the oil level is too low, add oil through the plug hole until
the it overflows.

EVERY 1000 HOURS MAINTENANCE

Maintenance for every 50, 250 and 500 hours should be performed at the same time.
4-56
k k
WARNING
MAINTENANCE