Komatsu PC45MR-30403, Operation And Maintenance Manual

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METHOD FOR REPLACING BUCKET
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WARNING
• When pins are knocked in with a hammer, pieces of metal may fly and cause serious injury.
When performing this operation, always wear protective eyeglasses, helmet, gloves, and other pro-
tective equipment.
• Place the removed bucket in a stable condition.
• The pin is hit with a strong force to remove, so the pin may fly out and injure the near people. Pay
attention to the area around the machine.
• Do not stand behind the bucket, and do not put your foot on the side of the bucket when removing
the pins.
• Do not get your fingers caught when removing or inserting pins.
• Never insert your fingers into the pin holes when aligning the holes.
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.
If the dust seal is damaged, replace it with a new one when replacing the bucket.
If a damaged seal is used without being replaced, sand and dirt may enter the pin portion and cause
abnormal wear of the pin.
Place the machine on a firm and flat surface and do the work.
When performing the 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).
Be sure to operate the lock lever by the operating por-
tion on the top.
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 the bucket (1) to the ground.
OPERATION MACHINE OPERATIONS AND CONTROLS
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