Method For Change Oil In Swing Machinery Case; Method For Changing The Oil In The Transmission Reduction Gear - Komatsu PW98MR-10 Operation & Maintenance Manual

MAINTENANCE

METHOD FOR CHANGE OIL IN SWING MACHINERY CASE

Immediately after the engine is stopped, its parts and oil are still very hot, and may cause burn injury.
Accordingly, wait until they have cooled down before starting the work.
Refill capacity: 2.8 ℓ (0.74 U.S.Gal)
Prepare a container to receive oil.
1.
Swing the upper structure so that drain plug (P) on the un-
derside of the machine is in the middle between the right
and left tracks.
2.
Place the oil container to catch oil under drain plug (P).
3.
Remove drain plug (P), drain the oil, then tighten the plug
again.
Tightening drain plug (P) to 44 to 93 Nm {4.5 to 9.5 kgm,
32.5 to 68.7 lbft}.
4.
Loosen bolt (1) and move cover (2).
5.
Add engine oil through the pipe for dipstick (G) by the refill
capacity.
6.
Check the oil level in the swing machinery case.
Check that the oil level is between H and L of dipstick (G).
For the oil level check procedure, see "METHOD FOR
CHECKING OIL LEVEL IN SWING MACHINERY CASE,
ADDING OIL (4-36)".
7.
Return cover (2) to its original position and fix it with bolt
(1).

METHOD FOR CHANGING THE OIL IN THE TRANSMISSION REDUCTION GEAR

Immediately after the engine is stopped, its parts and oil are still very hot and may cause burn injury.
Wait until they have cooled down before starting the work.
This operation must be carried out with the machine positioned on level ground and at operating temperature,
so that the oil becomes fluid and can be easily drained, which facilitates the elimination of any suspended solid
particles.
1.
Loosen the cap (1) slowly to release any residual pressure.
2.
Remove the drain plug (1) and let the oil flow out completely. While the oil flows out, remove the filler cap
(2).
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WARNING
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WENAM00061
MAINTENANCE PROCEDURE
4-61