Grove Published 01-29-2015, Control # 512-01 7-29
TMS700E SERVICE MANUAL POWER TRAIN
DRIVE TRAIN
Description
The drive train consists of the manual transmission, clutch,
and drive lines (see Figure 7-12).
A two-plate clutch is used between the engine and the
transmission.
The transmission is an 11-speed forward and 3-speed
reverse transmission controlled through a shifter with
mechanical linkage. Range shift is air controlled. The
transmission oil is cooled by an oil cooler mounted in front of
the radiator.
There are three drive shafts. The coupling shaft assembly
with center bearing connects the output shaft of the
transmission to the forward slip shaft assembly. The forward
slip shaft assembly then connects to the input shaft of the
front differential of the rear tandem axles. The rear tandem
axles have a drive shaft that connects the output shaft of the
rear front axle differential to the input shaft of the rear rear
axle differential.
Maintenance
Transmission
Refer to the Cummins engine and Eaton transmission
manuals and other portions of this section for removal,
scheduled maintenance and corrective maintenance, and
installation.
Drive Shafts
Removal
1. Support the drive shaft being removed so it does not fall
when disconnected. If removing the coupling shaft
assembly or the forward slip shaft assembly, support the
other shaft also.
2. If removing the coupling shaft assembly, free its bearing
from the frame by removing two bolts, two locknuts, and
four washers.
3. Remove the bolts from the bearing cap on each end of
the drive line. Remove the drive line.
Installation
1. For the coupling shaft assembly, verify the center
bearing nut is torqued according to Fasteners and
Torque Values on page 1-12.
2. For any drive shaft which has mating marks (arrows),
align these mating marks to ensure proper phasing of
coupler yokes.
3. Position the drive shaft between the couplers on the two
components it is joining.
4. For the coupling shaft assembly, secure its bearing to
the frame with two bolts, two locknuts, and four washers.
Torque these locknuts according to Fasteners and
Torque Values on page 1-12.
5. Secure the drive shaft to the coupler with bolts. For the
rear tandem axles’ shaft (the shaft between the
differentials), torque the bolts according to Fasteners
and Torque Values on page 1-12. For the other drive
shafts, torque according to Fasteners and Torque
Values on page 1-12.
Lubrication
The drive line slip joints require lubrication. Refer to
Lubrication on page 9-1.
CAUTION
Do not disassemble drive lines when removing them from
the crane. Dirt can enter the spline and cannot be purged.
In addition, the drive lines are assembled in a specific
orientation when manufactured and can easily be
incorrectly reassembled.
Reference Only
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