Komatsu PC400LC-5 Operation & Maintenance Manual page 114

12. OPERATION
12.15 REPLACEMENT AND INVERSION
OF BUCKET
A
WARNING
l When knocking the pin in with a hammer, metal particles
may fly and cause serious injury, particularly if they get into
your eyes. When carrying out this operation, always wear
goggles, helmet, gloves, and other protective equipment.
l When the bucket is removed, place it in a stable condition.
Stop the machine on a firm, flat surface. When performing joint
work, make clear signals to each other and work carefully for safety's
sake.
12.15.1 REPLACEMENT
1. Place the bucket in contact with a flat surface.
REMARK
When removing the pins, place the bucket so that it is in light
contact with the ground.
If the bucket is lowered strongly to the ground, the resistance will
be increased and it will be difficult to remove the pins.
2. Remove the stopper bolts and nuts, then remove pins @ and @I,
and remove the bucket.
NOTICE
After removing the pins, make sure that they do not become
contaminated with sand or mud and that the seals of bushing on
both sides do not become damaged.
3. Align the arm with holes @ and the link with holes 0, then coat
with grease and install pins @ and @I.
4. Install the stopper bolts and nuts for each pin, then grease the
pin.
Bucket cylinder
AE082740
2-70