4-16
F-661-0321
Troubleshooting
Table 4-1: Troubleshooting
PROBLEM
PROBABLE CAUSE
SOLUTION
Center Roller Bulldozes
Wing Hinge Roller is not in the correct
position
Adjust turnbuckle to located Wing Hinge
Roller in the lower 1/3 of Guide Slot
Warning Lights do not work
Connections loose
Connect loose connection
Bulbs burned out
Change bulb
Power supply absent
Repair power source
Light module failure
Replace light module
Wings do not fold
External hydraulic leak
Repair leak
Not enough tractor hydraulic pressure
Increase hydraulic pressure
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
Repair or replace hydraulic cylinder
Center lowers before wings unfold
Too much hydraulic fluid flow is too
great, pressure increases and rockshaft
hydraulic cylinder becomes activated
Reduce hydraulic fluid flow
Leaving tire tracks in field
Transport axle hydraulic cylinder isn’t
fully retracted
Retract transport axle hydraulic cylinder
Note: Make sure that the wing hydraulic
cylinders are completely extended
External hydraulic leak
Repair leak
Air in hydraulic circuit
Bleed air from hydraulic circuit
Internal hydraulic cylinder leakage
Note: Does the cylinder get warm with
rod completely extended or retracted
and the hydraulic circuit still activated?
Heat indicates internal leakage
Repair or replace hydraulic cylinder
Tractor valve does not hold pressure
Repair tractor valve
Top Link not adjusted properly
Adjust turnbuckle to locate wing hinge
roller in the lower 1/3 of the Guide Slot