Komatsu PC80MR-5E0, Operation & Maintenance Manual

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Set the machine in the posture shown in the figure.
1) Start the engine and run it at low idle.
2) Set the lock lever to FREE position (F).
3) Operate the work equipment control lever to swing the up-
per structure to make it right angle with the undercarriage.
Bring the work equipment to the side of the track.
4) Operate the work equipment control levers, and push up
the machine slowly by using the boom and arm until the
track is raised from the ground.
Operate the levers slowly.
5) Set the lock lever to LOCK position (L).
6) Stop the engine.
METHOD FOR REMOVING RUBBER SHOES
k k
WARNING
• Grease is pumped into the track tension adjustment
system under high pressure.
If the adjustment is performed with the procedure oth-
er than following, grease drain plug (1) may fly out and
cause serious injury or death.
If the rubber shoe track is not loosened, ask your Ko-
matsu distributor for repair.
• Do not loosen grease drain plug (1) more than 1 turn.
• Do not loosen any part other than grease drain plug
(1).
• Do not put your face, hands, feet, or any other part of
your body close to grease drain plug (1).
• Before removing the rubber shoe track, check that the
internal grease is fully discharged, and then turn the
sprocket.
1.
Loosen grease drain plug (1) gradually to release the grease.
RKA63210
MAINTENANCE PROCEDURE MAINTENANCE
4-32
WENAM00241