Komatsu PW160-7H, Operation & Maintenance Manual

Page: 293 / 346

MAINTENANCE SERVICE PROCEDURE
PW160-7H VEAM390100 293
12. Check for oil leakage and wipe off any spilled oil.
When the hydraulic breaker is installed, the hydraulic oil deterio-
rates earlier than in normal bucket digging work.
The first element replacement should be at 100 to 150 hours for
new machines. Thereafter, replace the element, see "WEAR
PARTS LIST (231)".
CHANGE OIL IN SWING MACHINERY CASE.
WARNING
The parts and oil are at high temperature after the engine is
stopped, and may cause serious burns. Wait for the tempera-
ture to go down before starting the operation.
●
Refill capacity: 4.5 litres
1. Remove cover (A) of the inspection hole.
2. Set an oil container under drain valve (P) under the machine
body and feed the drain hose from the drain valve into the
container.
3. Loosen drain valve (P) and drain the oil. Then tighten the
drain valve again.
4. Remove the cap from oil filler (F) and add the specified
amount of engine oil through oil filler (F).
5. Pull out dipstick (G) and wipe the off oil from it with a clean
cloth.
6. Insert dipstick (G) into the gauge pipe as far as it will go and
then pull out it again.
7. If the oil level is between the H and L marks on dipstick (G), it
is normal. If the oil does not reach the L mark, add more oil
through oil filler (F).
8. If the oil level exceeds the H mark, drain the excess oil from
drain valve (P), and check the oil level again.
9. Close the drain valve and allow excess oil to drain from the
drain tube. Stow the hose and reinstall the undercover.
CHECK ALL TIGHTENING PARTS OF TURBO-
CHARGER.
Contact your Komatsu distributor to have the tightening portions
checked.
P
F
G