Komatsu PC400LC-5 Operation & Maintenance Manual page 115

12.15.2 INVERSION
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 @,
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.
4.
5.
Install the bucket inversely.
After the bucket is inversed, correct the inclination and direction
of the retaining pin holes @ and @ and stabilize the bucket
securely.
Align the arm with holes @ and the link with holes 0, then coat
with grease and install pins @ and @.
Install the stopper bolts and nuts for each pin, then grease the
pin.
Bucket cylinder
Link
2-71