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Troubleshooting
PROBLEM
Center Roller Bulldozes
Warning Lights Do Not Work
Wings Do Not Fold
Center Lowers Before Wings Unfold
Leaving Tire Tracks In Field.
4-14
TABLE OF CONTENTS
PROBABLE CAUSE
Wing Hinge roller is not in the correct
position
Connections loose
Bulbs burned out
Power supply absent
Light module failure
External hydraulic leak
Not enough tractor hydraulic pressure
Note: Need 2,000 PSI on 36 ft machine,
less or smaller
Internal hydraulic cylinder leakage
Note: Does the cylinder get warm with rod
completely extended or retracted and the
hydraulic circuit still activated?
Heat indicates leakage
Too much hydraulic flow
Note: Wing hydraulic cylinders have
restrictors, if flow is too great,
backpressure increases and rockshaft
hydraulic cylinder becomes activated
Transport axle hydraulic cylinder isn't fully
retracted
External hydraulic leak
Air in hydraulic circuit
Internal hydraulic cylinder leakage
Note: Does they cylinder get warm the rod
completely extended or retracted and the
hydraulic circuit still activated?
Heat indicates internal leakage
Tractor valve does not hold pressure
Top Link not adjusted properly
SOLUTION
Adjust Turnbuckle to locate Wing Hinge
Roller in the lower 1/3 of Guide Slot
Connect loose connection
Change bulb
Repair power source
Replace light module
Repair leak
Increase hydraulic pressure
Repair or replace hydraulic cylinder
Reduce hydraulic fluid flow
Retract transport axle hydraulic cylinder
Note: Make sure that they wing hydraulic
cylinders are completely extended
Repair leak
Bleed air from hydraulic circuit
Repair or replace hydraulic cylinder
Repair tractor valve
Adjust Turnbuckle to locate Wing Hinge
Roller in the lower 1/3 of Guide Slot
F-1108-0121
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