Manitowoc Grove TMS800E User Manual

8-13
TMS800E SERVICE MANUAL UNDERCARRIAGE
8
GROVE
Published 01-29-2014, Control # 496-00
b. Caster degree incorrect. b. Correct to specified degree.
11. Wheel turns hard in one direction. a. Metal or foreign material in
relief ball seat in piston of
steering gear.
a. Remove and clean relief valve
seats or replace damaged
parts.
12. No attempt to return straight
ahead from turns/should also be
hard steering complaint.
a. No positive caster. a. Set caster to specified
degree.
b. Steering column bind. b. Check and repair U-joints and
support bearings.
c. Steering gear mounting
distorted.
c. Shim mounting pads to
correct piston to bore
interference. Make sure
correct bolt length is used on
the base mount gears.
d. Linkage ball sockets seized or
binding.
d. Check and repair or replace.
e. King pins seized or binding. e. Repair or replace.
f. Oil flow rate incorrect. f. Check and correct supply
pump.
13. Darting, wandering, oversteering. a. Oil flow too high. a. Supply pump not to
specifications.
b. Air trapped in steering gear. b. Bleed system.
c. Looseness, worn front end
parts.
c. Check and repair as required.
d. Front end alignment not
correct.
d. Align front end - caster.
e. Overloading. e. Reduce loads.
f. Rear axle not parallel. f. Check and repair as required.
g. Tight tie rod ends and drag
link sockets.
g. Check rotational torque and
replace if necessary.
14. Excessive backlash, freeplay. a. Worn universal joint. a. Replace universal joint.
b. Rack on piston damaged. b. Replace steering gear.
c. Damaged sector shaft/
splines.
c. Replace steering gear.
d. Worn or damaged pitman arm
splines.
d. Replace pitman arm and/o
r
sector shaf
t.
e. Universal joint yoke loose on
actuating shaft.
e. Repair or replace damaged
parts.
15. Steering input not smooth. a. Worn universal joint. a. Check and replace as
required.
b. Lack of lubrication. b. Lubricate per lube chart.
c. Universal joints not phased
properly.
c. Re-phase columns.
Table 8-1Troubleshooting
Symptom Probable Cause Solution
Reference Only

Manitowoc Grove TMS800E Specifications

General

Brand	Manitowoc
Model	Grove TMS800E
Category	Construction Equipment
Language	English