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MAINTENANCE
ADJUST BUCKET CLEARANCE
It is dangerous if the work equipment is mistakenly moved when adjusting
the bucket clearance.
Set the work equipment in a stable condition, stop the engine, then set lock
lever securely to the LOCK position (L).
1. Set the work equipment in the position shown in the diagram on
the right, then stop the engine and set the lock lever to the
LOCK position (L).
2. Shift O-ring (1) and measure the amount of play "a".
Measurement is easier if you move the bucket to one side so
that all the play can be measured at one place (the right side in
the diagram).
Use a clearance gauge for easy and accurate measurement.
3. Loosen 4 plate mounting bolts (2), and loosen plate (3).
The shim is a split type, so the operation can be carried out
without removing the bolts.
4. Remove shim (4) corresponding to the amount of play "a"
measured above.
[Example]
In the case of play of 3 mm (0.118 in), remove two 1.0 mm
(0.039 in) shims and one 0.5 mm (0.020 in) shim. Play
becomes 0.5 mm (0.020 in). For shim (4), two types of 1.0 mm
(0.039 in) and 0.5 mm (0.020 in) are used.
When play "a" is smaller than one shim, do not carry out any
maintenance.
5. Tighten the four bolts (2).
If the bolts (2) are too stiff to tighten, pull out pin stopper bolt (5)
for easier tightening.
WARNING
MAINTENANCE PROCEDURE
(6)
Arm
(7)
Bucket
4 - 39
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