Grove
Published 01-14-2021 Control # 707-01
8-5
TMS9000-2 SERVICE MANUAL
CARRIER
8
Removal
Refer to (Figure 8-1).
NOTE:
The axle does not have to be removed from the
crane for maintenance.
1.
Raise the crane on outriggers until the weight is off the
tires and place jack stands under the carrier frame.
2.
Completely drain the air pressure from both systems.
3.
Remove the tire and wheel assemblies from both sides
of the axles and remove the speed sensor harness.
4.
Place an adequate lifting/supporting device under the
axles and suspension system.
NOTE:
The axle and suspension system weighs
approximately 1700 kg (3750 lb).
5.
Tag and disconnect the air lines to the four brake
chambers and the four air bags. Remove the fittings
from the air bag connections. Cap all hoses and
openings.
NOTE:
Do not change the torque rod or vertical socket
drag links dimensions. This will make wheel
alignment easier when the axle is reinstalled.
6.
Remove the bolts, hardened washers, and nuts securing
four torque rods to the carrier frame.
7.
Remove the cotter pin and nut securing two vertical
socket drag links to the axle.
8.
Remove the cotter pin and nut securing two steer
cylinders to the axles.
9.
Remove the hardware securing the linkage rod of each
height control valve to its respective saddle assembly.
10.
Remove the nut, lockwasher, and hardened washer
securing two shock absorbers to the carrier frame.
11.
With the axles and suspension fully supported, remove
the two nuts and washers securing each of the four air
bags to the carrier frame brackets.
12.
Remove the two bolts and washers securing each
saddle assembly cap blocks to the carrier frame
brackets.
13.
Remove the axles and suspension assembly from under
the carrier
Disassembly
Refer to (Figure 8-1).
Disassemble the axle and suspension assembly as
necessary using the following procedures.
NOTE:
Check and record the distance for each torque rod
from center to center of the rod clevis. Do not
change this dimension when installing torque rods.
This will make wheel alignment easier when the
axle is reinstalled.
1.
Remove the bolts, hardened washers, and nuts securing
four torque rods to the axle brackets.
2.
Remove two shock absorbers from the suspension
saddle assembly by removing the nut and two washers
securing each. Remove the shock absorber(s).
3.
Remove each axle from the walking beams by removing
the two bolts, washers, and nuts securing each end of
the axle to the walking beam end bushings. Remove the
axle(s).
4.
Remove the saddle assemblies from the walking beams
by removing two bolts and washers from each pivot
block cap. Remove the caps. Remove the saddle
assemblies and the trunnion tube from the walking
beams.
5.
Remove each air bag from the saddle assembly by
removing the bolt and lockwasher. Remove the air
bag(s).
Assembly
Refer to (Figure 8-1).
As necessary, assemble the axle and suspension assembly
using the following procedures.
1.
Position the air bag(s) on the saddle assembly and
secure each with a bolt and lockwasher.
2.
Position the trunnion tube through the center bushing on
each walking beam. Position each saddle assembly
over the center bushing and secure with the pivot block
cap and two bolts and lockwashers, apply Loctite to bolt
threads. Torque the bolts 310 to 375 Nm (229 to 277 lb-
ft).
3.
Position the axle(s) under the walking beams aligning
the axle brackets with the bar end bushings on the
walking beams. Apply Loctite 243 to bolt threads and
secure each end with two bolts, washers, and nuts.
Torque the bolts 615 to 815 Nm (453 to 601 lb-ft).
4.
Position the shock absorber(s) on the saddle assembly
and secure each with a nut and two washers, apply
Loctite 243 to threads. Torque the nuts 615 Nm (453 lb-
ft).
5.
Position the torque rods in the axle brackets and secure
each with two bolts, hardened washers, and nuts, apply
Loctite 243 to the bolt threads. Torque nuts to 295-322
Nm (217-236 lb-ft).
Fo
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Reference
Only
