MAINTENANCE
7-74
4
Adjust Bucket Linkage
The machine is provided with a bucket adjustment system
to take up play in the linkage. When play in the linkage
increases, remove and install shims as follows:
1. Park the machine on a level surface. Lower the bucket to
the ground with the flat side down so that the bucket will
not roll.
2. Run the engine at slow idle. With the bucket on the
ground, slowly swing counterclockwise slightly until the
top of the left bucket boss contacts the arm.
3. Stop the engine. Pull the pilot control shut-off lever to
the LOCK position.
NOTE: Bolt (1) does not need to be removed to remove shims
(2). Shims (2) are of a split type that can be easily
pushed off with a screwdriver after bolts (1) have been
loosened.
4. Slightly loosen three (M14) bolts (1) using a 22 mm
wrench. Remove all shims (2) from clearance (c) between
plate (3) and bucket.
5. Push and hold bolts (1) to remove all clearance (a) be
-
tween arm and boss (4). Holding boss (4) against arm
increases clearance (b). Measure distance (b) using a
feeler gauge. This distance should not be adjusted below
0.5 mm (0.02 in).
6. Install as many shims (2) into clearance (b) as possible.
NOTE: Remaining shims (2) must be installed in clearance (c)
to prevent arm end face or bolt damage.
7. Install remaining shims (2) into clearance (c) and tighten
bolts (1) to 140 N•m (14 kgf•m, 103 lbf•ft).
NOTE: The total number of shims (2) used is A.
A : 12 (6 pairs)
8. Replace boss (4) if measurement (d) is 5 mm (0.2 in) or
less.
M503-07-056
Clearance
Adjust Part
M104-07-066
SECTION II
Bucket Pin Arm
d
II
a
b c
II
4
2
3
1
Bucket
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