Komatsu PC30MR-5, Operation & Maintenance Manual

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NOTICE
• After removing the pins, make sure that mud or sand does not get on them.
• Dust seals are fitted at both ends of the bushings, be careful not to damage them.
When replacing the bucket, replace the dust seal with a new one if it is damaged.
If a damaged one is used without being replaced, sand and dirt may enter the part of pin and cause
abnormal wear of the pin.
Place the machine on a firm and flat surface and do the work.
When performing joint work, appoint a leader and follow that person's instructions and signals.
1.
Set the machine in the posture shown in the figure.
1) Start the engine, and run it at low speed.
2) Set the lock lever to FREE position (F).
3) Push the blade control lever forward to lower the
blade to the ground.
4) Operate the work equipment control levers to make
the bucket bottom level.
5) Operate the work equipment control lever, and lower
the boom gently to lower bucket (1) to the ground.
6) Set the lock lever to LOCK position (L).
7) Stop the engine.
REMARK
When removing the pins, place the bucket so that it is in
light contact with the ground.
If the bucket contacts strongly to the ground, the resist-
ance at pins will be increased and it will be difficult to re-
move the pins.
2.
Remove the double nut of stopper bolt at arm pin (A) and
link pin (B), then pull out the bolts.
3.
Pull out arm pin (A) and link pin (B), then remove bucket
(1).
RKA63210
MACHINE OPERATIONS AND CONTROLS OPERATION
3-146
WENAM00150