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Section B
25 - 2
Extending Dipper
- Wear Pad Adjustment (Cont'd)
Adjusting the Bottom Wear Pads
1
Park the machine on level ground. Engage the parking
brake and put the transmission in neutral.
2
Support the boom and dipper as shown at C.
3
Stop the engine.
4
Clean the sliding faces of the inner dipper with a
suitable solvent.
5
Start the engine. Retract the Extradig dipper D. Make
sure that the bucket is clear of the ground and the
dipper is supported.
6
Stop the engine.
With grease, mud etc. removed from the sliding faces
7
visually check the gap between inner dipper and top
wear pad A, as shown at G. The gap should be no
greater than 1.5 mm (
1
G
S148121
9803/3280
Body and Framework
Service Procedures
/
in).
16
A
A
J
D
H
C
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If the gap is greater than
follows:
Remove one adjusting bolt H and discard one
a
washer J.
b
Refit and tighten bolt H.
c
Repeat the procedure for the remaining 3 adjusting
bolts H on the same side of the dipper.
d
Visually re-check the gap is no greater than 1.5 mm
(1/16 in) as shown at G, if necessary repeat steps a
to c for the other 4 bolts H on the opposite side of
the dipper.
e
Make sure that the inner dipper seats central to the
sides of the outer dipper.
Note: Remember to alternate sides each time an adjustment
is made.
Note: When all the adjusting washers J have been removed
and the clearance is greater than 1.5 mm (
pads A and B must be replaced as a set and fitted by a
qualified service engineer.
When the adjustments have been completed, apply Waxoyl
to the runners of the inner dipper.
G
Section B
25 - 2
1
/
in (1.5 mm) then adjust as
16
1
/
in), then wear
16
Issue 1
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