Manitowoc Grove GRT9165 Service Manual

8-11
GRT9165 SERVICE MANUAL UNDERCARRIAGE
8
Published 10-01-2020 Control # 699-00
GROVE
Rear Steering System
Troubleshooting
Table 8-2
Steer Cylinders
The steer cylinders are mounted on the axles, two cylinders
on each axle. The barrel end of each cylinder is attached to a
bracket on the axle housing and the rod end is attached to
the steering lug on the wheel end. The Carrier Manifold Valve
controls the rear axle steer cylinders. For more information,
see Carrier Manifold Valve, page 2-25. The steer control
valve in the steering column controls the front axle steer
cylinders. For more information, see Front Steering Control
Valve, page 8-9.
Symptom Probable Cause Solution
1. Rear steering
inoperative.
a. Hydraulic oil low. a. Check system for leaks. Make
repairs as needed. Fill reservoir.
b. Clogged, broken, or loose
hydraulic lines or fittings.
b. Clean, tighten, or replace lines or
fittings.
c. Steer cylinder locked. c. Repair or replace cylinders.
d. Defective control valve. d. Repair or replace valve.
e. Defective steer cylinder(s). e. Repair or replace cylinder(s).
f. Lack of electrical signal f. Check electrical connections/wiring
2. Difficult to steer left
and right.
a. Hydraulic oil low. a. Check system for leaks. Make
repairs as needed. Fill reservoir.
b. Clogged or loose hydraulic lines or
fittings.
b. Clean or tighten lines or
fittings.
c. Defective steering control valve. c. Repair or replace valve.
d. Defective hydraulic pump. d. Repair or replace pump.
e. Clogged or loose hydraulic lines or
fittings.
e. Clean or tighten lines or
fittings.
f. Defective steer cylinder. f. Repair or replace cylinder.
g. Damaged relief. g. Replace relief valve.
3. Steering is erratic left
and right.
a. Hydraulic oil low. a. Check system for leaks. Make
repairs as needed. Fill reservoir.
b. Clogged or loose hydraulic lines or
fittings.
b. Clean or tighten lines or
fittings.
c. Defective steering control valve. c. Repair or replace valve.
d. Defective hydraulic pump. d.
Repair or replace pump.

Manitowoc Grove GRT9165 Specifications

General

Brand	Manitowoc
Model	Grove GRT9165
Category	Construction Equipment
Language	English