Thickness
Shim Part No.
TIE
ROD ARM
Shim Part No.
DRAG LINK ARM
Shim set 77-4050 77-4040
0.8 mm (0.03 in.) 76-7820 76-7700
1.0 mm (0.04 in.) 76-7970 76-7760
1.2 mm (0.05 in.) 76-7980 76-7780
1.4 mm (0.055 in.) 76-7990 76-7790
Installing Drag Link and Tie Rod Arm
1. Carefully insert bushing into arm.
2. Put arm into position over holder, fitting it to final case
and
secure to case with bolts.
3. Check thrust clearance. Proper thrust clearance is
0 to 0.2 mm (0.008in.). If necessary reduce clearance
to specification by shimming. Shim stock for this adjust-
ment is available in the following thicknesses:
Figure 38
4. After selecting required shim, remove the arm. Apply
multi-purpose lithium base grease to OD part of holder.
Install holder on arm with shim and secure to final case
by tighten reamer bolts to following torque value:
Torque specification 8.5 ∼ 9.5 kg-m
(61 ∼ 69 ft-lb)
Installing Gear Case Assembly to Axle Housing
1. To check backlash between pinions (14T) –– one on
f
inal drive shaft and one on differential shaft –– tempo-
rarily fit gear case to axle housing and tighten two bolts
diametrically opposite. DO NOT use black reamer bolt
for this temporary assembly.
2. Install a dial indicator to final case, putting gauge
s
pindle to tooth on pinion (15T pinion on bottom end of
final drive shaft). Take a backlash reading.
Pinion (14T) backlash 0.2 ∼ 0.4 mm
(0.008 ∼ 0.016 in.)
3. If reading is outside of specified range, remove gear
case and adjust shim between pinion (14T) on differen-
tial shaft and ball bearing. Shim stock for this adjustment
is available in the following thicknesses:
Figure 39
Axles and Brakes
Thickness Part No.
Shim set 77-4020
0.1 mm (0.004 in.) 76-7520
0.2 mm (0.008 in.) 76-7530
0.4 mm (0.016 in.) 76-7540
Groundsmaster
®
455-D Page 6 - 21 Repairs
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