Manitowoc Grove CD3340B User Manual

GROVE 10-5
CD3340B/YB4411 STEERING SYSTEM
10
Published 04/07/2015 Control # 569-00
Machine will not turn when the
steering wheel is turned
1. Insufficient oil level.
2. Leaks in relevant hoses or component
connections.
3. Air in the hydraulic system.
4. Low pump flow.
5. Malfunctioning steering relief valve.
6. Worn or damaged part in the steering
orbitrol.
7. Priority valve not operating correctly.
8. Steering mode valve not operating
correctly.
9. Mechanical failure.
10. Steering column splined shaft not fully
engaged in orbitrol.
1. Check for leaks and fill tank.
2. Check hoses and connections for
leaks.
3. Bleed system - bleed the load sense
line.
4. Check pump flow. If required repair or
replace the pump.
5. Replace priority valve.
6. Remove, inspect and repair.
7. Check if the priority valve is sticking,
repair if necessary.
Check the load sense line for leaks or
loose connections.
8. Check for sticking spools. Clean or
replace.
Check for faulty solenoids. Replace if
necessary.
9. Check for damaged axle components,
such as cylinders, tie rods, linkages,
etc.
10. Check shaft engagement.
Steering fails to respond to
selected mode
NOTE: The wheels must
pass the proximity
sensor to actuate
relays to change
steering mode. See
“General” and
“Principle of
Operation” on
page 10-7.
1. Selector switch faulty.
2. Proximity switches not operating
correctly.
3. Steering mode valve not operating
4. Leaks in relevant hoses or component
connections
5. Electrical failure.
1. Replace switch.
2. Check setting of proximity switch,
reset or replace switches as required.
3. Check if spools are sticking. Repair or
replace, as necessary.
4. Check hoses and connections for
leaks. Tighten or replace.
5. Check relevant electrical connectors,
if problem still persists, do a wiring
continuity check on relevant circuits.
See page 10-8.
Wander - Tendency of vehicle
to deviate from course
1. Air in system.
2. Worn steering linkage.
3. Loose steering cylinder piston.
4.
Severe wear in steering orbitrol.
1. Correct condition
and add
fluid.
Bleed system and load sense line.
2. Repair or replace linkage.
3. Repair or replace the cylinder.
4. Repair or replace the orbitrol.
Slip - A slow movement of
steering wheel fails to cause
any movement in steering
wheels
1. Leakage of cylinder piston seals.
2. Worn steering orbitrol.
1. Repair or replace cylinder.
2. Repair or replace orbitrol.
Symptom Probable Cause Action
Reference Only

Manitowoc Grove CD3340B Specifications

General

Brand	Manitowoc
Model	Grove CD3340B
Category	Construction Equipment
Language	English