Komatsu PW118MR-11 Operation & Maintenance Manual page 388

MAINTENANCE PROCEDURE
Differential
1.
Slowly loosen the plug (3) to discharge the pressure.
2.
Remove the discharge plug (2) and completely drain the used oil. While the oil flows out, remove the filler
plug (1).
Use a 12 mm wrench.
3.
Fit the plug (2) and fill via the plug (1) using the prescribed
oil until reaching the level corresponding to the lower edge
of the hole.
4.
Fit the plug (1).
Final reduction gears
1.
Position the reduction gear so that the plug (3) is in the low position on the vertical axis.
2.
Remove the plug (3) and discharge the used oil.
Use a 12 mm wrench.
3.
Move the machine to position the plug (3) on the horizontal
axle.
4.
Fill with the prescribed oil until reaching the lower edge of
the hole.
5.
Fit the plug (3), perform a few manoeuvres and with the
machine at standstill check the level again.
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WENAM00130
MAINTENANCE
RKA65350
RKA65430