Manitowoc Grove CD3340B User Manual

STEERING SYSTEM CD3340B/YB4411
10-4
Published 04/07/2015 Control # 569-00
TROUBLESHOOTING
Table 10-1
Symptom Probable Cause Action
Slow steering, hard steering, or
loss of power assist
1. Worn or malfunctioning pump.
2. Priority valve not opening correctly.
3. Malfunctioning relief valve.
4. Overloaded steering axle.
5. Air in hydraulic system.
6. Malfunctioning steering orbitrol.
7. Malfunction in steering mode valve.
8. Mechanical failure.
1. Repair or replace pump.
2. Check for sticky spool. Repair or
replace.
Check load sense line for leaks or
poor connection.
3. Replace the priority valve.
4. Reduce the load.
5. Bleed system - bleed the load sense
line.
6. Remove and inspect.
7. Check if spools are sticking. Repair or
replace.
Check if solenoids are operating.
Replace if needed.
8. Check for damaged axle components,
such as cylinders, tie rods, linkages,
etc.
Steering wheel turns on its own
1. Dirt in steering orbitrol (causing
sleeves to stick open).
2. Steering actuator centering springs
damaged or broken.
3. Steering actuator - position of rotor to
shaft slot incorrect.
1. Clean and inspect unit.
2. Check orbitrol. Repair or replace.
3. See page 10-14. Correct if required.
Reference Only

Manitowoc Grove CD3340B Specifications

General

Brand	Manitowoc
Model	Grove CD3340B
Category	Construction Equipment
Language	English