Method For Adjusting Bucket Clearance - Komatsu PW118MR-11 Operation & Maintenance Manual

MAINTENANCE PROCEDURE
5.
Insert the new tooth (2) in the tooth holder, partially push
the pin (1) manually, then insert it with a hammer and block
the tooth on the bucket.

METHOD FOR ADJUSTING BUCKET CLEARANCE

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It is dangerous if the work equipment moves by mistake
when the tooth is being replaced.
Lower the work equipment to the ground, set it in a stable
condition, stop the engine, and set the lock lever securely
to LOCK position (L).
1.
Set the work equipment in the position shown in the figure,
then stop the engine and set the lock lever to LOCK posi-
tion (L).
A: Arm
B: Bucket
2.
Shift O-ring (1) and measure the amount of play "a".
REMARK
Measurement is easier if you move the bucket to one side
so that all the play can be measured at 1 place (the right
side in the figure).
Use a feeler gauge for easy and accurate measurement.
3.
Loosen the plate mounting bolts (2) (4 pieces) and loosen
the plate (3).
The shim is a split type, so the work can be performed
without removing the bolts.
4.
Remove shim (4) corresponding to the amount of play "a".
Shim (4) is a set of 2 pieces. The thickness of each piece
(4) is 0,5 mm
When play "a" is smaller than 1 shim, do not adjust it by
tightening bolts (2).
5.
Tighten bolts (2) (4 pieces).
If bolts (2) are too stiff to tighten, pull out pin stopper bolt
(5) for easier tightening.
4-24
WARNING
WENAM00130
MAINTENANCE
RKA49020