Manitowoc Grove CD3340B User Manual

STEERING SYSTEM CD3340B/YB4411
10-6
Published 04/07/2015 Control # 569-00
Erratic steering
1. Air in system due to low level of
hydraulic oil, cavitating pump, leaky
fitting, pinched hose, etc.
2. Loose steering cylinder piston.
3. Sticking check valve.
4. Turning steering wheel too rapidly.
1. Correct condition and add fluid.
Bleed system and load sense line.
2. Repair or replace cylinder.
3. Clean or replace.
4. Slow movement.
“Spongy” or soft steering
1. Air in hydraulic system. Most likely air
trapped in cylinders or lines.
2. Low fluid level.
1. Correct conditions. Bleed air our of
system and load sense line.
2. Add fluid and check for leaks.
Free wheeling - Steering wheel
turns freely with no feel of
pressure and no action on
steering wheels
1. Steering column upper shaft is loose
or damaged.
2. Lower splines of column may be
disengaged or broken.
3. Steering orbitrol meter has a lack of
oil. This can happen on start up, after
repair, or long down time intervals.
4. Steering cylinder piston seal blown
out.
1. Tighten the steering wheel nut. Check
shaft engineering to orbitrol.
2. Repair or replace.
3. Usually starting engine will cure the
problem. Bleed system if necessary.
4. Determine cause. Correct and replace
the seal.
Excessive free play at steering
wheel
1. Loose steering wheel nut.
2. Steering column shaft worn or
damaged.
1. Tighten the nut.
2. Repair or replace the steering wheel
connection or column.
Excessive free play at steered
wheels
1. Leaky steering cylinder seals. 1. Replace cylinder seals.
Binding or poor centering of
steering wheel
1. Large dirt particles can cause binding
between orbitrol spool and sleeve.
1. Clean the orbitrol. Repair or replace, if
necessary. If another component has
failed. Generating contaminants, flush
the hydraulic system while bypassing
the orbitrol.
Steering orbitrol locks up
1. Large particles of contamination in
metering section.
2. Severe wear and/or broken pin.
1. Clean the orbitrol. Repair or replace, if
necessary.
2. Repair or replace the orbitrol.
Symptom Probable Cause Action
Reference Only

Manitowoc Grove CD3340B Specifications

General

Brand	Manitowoc
Model	Grove CD3340B
Category	Construction Equipment
Language	English