Komatsu PC5500-6 Operation & Maintenance Manual page 493

Hydraulic mining shovel
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MAINTENANCE
Change the Oil
1. Remove drain plug (4).
2. Remove gauge (1) and filler plug (2).
3. Remove breather filter (3), blow out with compressed air from
inside to outside and re-install.
4. After the oil is completely drained, flush the gear with the reg-
ular gear oil and reinstall drain plug (4).
5. Fill in new oil through opening (2) up to the "MAX" mark on
gauge (1). If the machine is equipped with a central refilling
system, proceed according to page 270.
6. Re-install parts (1 and 2).
7. After short operating period, check oil level and housing for
leakage.
NOTICE
If the oil level is above the "MAX" mark, drain the oil down
until the oil level is at the "MAX" mark. Too much oil in the
pump distributor gear will cause aeration of the oil.
4.14 EVERY 3000 OPERATING HOURS HOWEVER AT LEAST ONCE A YEAR
493

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