Komatsu PC118MR-8, Operation And Maintenance Manual

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MAINTENANCE
MAINTENANCE PROCEDURES
4-67
DRAINING THE HYDRAULIC OIL TANK 4
(Only for machines in which synthetic biodegradable oil type HEES is used)
WARNING
q
Retract the arm and bucket cylinders completely, rest the bucket teeth on the ground and, after
stopping the engine, eliminate the residual pressures from the equipment (by shifting the controls
more than once) and from the tank (by slowly loosening the filler cap).
q
Let the oil cool down until it reaches 40–45°C before carrying out this maintenance operation.
q
Immediately clean any area dirty with oil.
q
Oils, filters, the coolant and the battery are considered special waste and must be collected and
disposed of according to the regulations in force.
1. Turn the turret so that the lower part of the hydraulic oil
tank is not covered by the tracks.
2. Retract the arm and bucket cylinders completely and lower
the boom until the bucket teeth rest on the ground.
3. Lower the blade to the ground.
4. Take the safety device lever to LOCK position (L), stop the
engine and eliminate the remaining pressure of the
equipment (moving the commands many times).
1. Open the side cover (1).
WEAM014802