Manitowoc Grove TMS700E User Manual

UNDERCARRIAGE TMS700E SERVICE MANUAL
8-12 Published 01-29-2015, Control # 512-01
6. Once all four corners are adjusted, drive the machine
forward at a slow speed and “tap” the brake pedal to
bounce the machine. Do this 3 times going forward, then
3 times in reverse.
7. Repeat steps 3 through 5 until all the trailing arms
remain adjusted within 0.5° of level.
STEERING SYSTEM
Description
The steering system is comprised of the steering gearbox,
steer pump, and two steer cylinders. The steering gearbox
provides for full time hydraulic steering, but still allows for
manual steering in the event of a system malfunction.
Maintenance
Troubleshooting
Table 8-1
Symptom Probable Cause Solution
1. Oil leaking at output shaft of
steering gear.
a. Damaged sector shaft seal. a. Replace sector shaft.
2. Oil leaking at actuating shaft of
steering gear.
a. Worn or damaged oil seal. a. Replace actuating shaft seal.
b. Damaged actuating shaft seal
surface.
b. Replace bearing cap,
actuating shafts assembly.
3. Oil leaking at supply pump drive
shaft.
a. Damaged oil seal. a. Replace oil seal.
b. Oil seal-heat damaged. b. Check operating temperature.
c. Loose or damaged bushing
on pump drive shaft.
c. Repair pump per pump
service instruction.
4. Lubricant milky or white in
appearance.
a. Water entry through reservoir
venting system.
a. Clean vent system or replace
cap assembly.
5. Oil forced out of reservoir or
foaming.
a. Clogged oil filter. a. Change oil and oil filter.
b. Air in system. b. Bleed air from the system.
Check for air leak on suction
side of supply pumps.
c. Relief plungers of steering
gear not adjusted properly
creating high operating
temperatures.
c. Adjust relief plungers.
d. Air leak in suction side of
supply pump.
d. Reference pump servicing
instruction.
e. Pump cavitation. e. Check for restriction in pump
supply.
f. Oil overheating. f. Check for restriction in
steering gear return.
6. Engine oil in power steering
reservoir (gear driven pump).
a. Faulty seal at pump drive
shaft.
a. Repair pump.
b. Faulty seal at accessory shaft
driving supply pump.
b. Repair accessory drive.
Reference Only

Manitowoc Grove TMS700E Specifications

General

Brand	Manitowoc
Model	Grove TMS700E
Category	Construction Equipment
Language	English