Komatsu PW160-7K Series, Operation And Maintenance Manual

Page: 262 / 358

SERVICE PROCEDURE MAINTENANCE
262
REPLACE BUCKET TEETH
REPLACE BUCKET TEETH (VERTICAL PIN TYPE)
Replace the point before the adapter starts to wear.
WARNING
• It is dangerous if the work equipment moves by mistake
when the teeth are being replaced. Set the work equip-
ment in a stable position, then stop the engine and apply
the locks securely to the levers.
• If the locking pin is knocked out with excessive force,
there is a hazard that the pin may fly out. Check that
there is no one in the surrounding area.
• Pieces will often fly during the replacement operation,
so wear safety glasses, gloves, and other protective
equipment.
1. To make it possible to knock out the pin of tooth (1), set the
bottom surface of the bucket on a block, check that the work
equipment is in a stable condition, raise the safety lock lever
to the LOCK position.
Set so that the bottom face of the bucket is horizontal.
2. Use a hammer and drift to knock out lock pin (2). (If the drift is
set against rubber pin lock (3) when it is hit, the rubber pin
lock may break. Set it against the back of the pin.)
3. After removing lock pin (2) and rubber pin lock (3), check
them.
REMARK
If lock pins and rubber pin locks with the following defects are
used, the teeth may come off the bucket. Replace them with new
ones.
●
The lock pin is too short.
LOCK
UNLOCK
Block
The lock pin is too short 1/3 of A
Align with bottom face