Komatsu PC15MRX-1 Operation And Maintenance Manual page 177

MAINTENANCE
Rubber Shoes Removal
It is extremely dangerous to release the grease by any
method except the procedure given below. If the track
tension is not relieved by this procedure, please con-
tact your Komatsu distributor.
Check that all the grease has been released before
rotating the sprocket to remove the rubber shoe.
1. Raise the chassis with the boom and arm.
When doing this, operate the levers slowly.
2. Loosen plug (1) gradually to release the grease.
3. Turn plug (1) a maximum of one turn.
4. Fit the steel pipes inside the rubber shoe, rotate the
sprocket in reverse, so that the steel pipes make the rub-
ber shoe come up from the idler, then to the side to
remove.
Rubber Shoes Installation
1. Raise the chassis with the boom and arm.
When doing this, operate the levers slowly.
WARNING
MAINTENANCE PROCEDURE
4-37