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TROUBLESHOOTING GUIDE
PROBLEM
Floor cut has grooves.
Machine bounces in the field.
Uneven operating depth.
Rear gauge points not uniform.
Machine does not hold consistent
working depth.
Wings fold too slowly.
Wings fold too fast.
5-2
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PROBABLE CAUSE
Rear gangs out of adjustment
relative to the front disc unit.
Field
conditions
too
operating speed.
Draft comp pressure is too low.
Draft comp circuit out of adjustment.
Floor cut irregular.
Air is trapped in the gauge cylinders.
Wing frame(s) not operating at
uniform depths.
Rear
gauge
points
synchronization.
Hydraulic wing down pressure is not
operating (correctly).
Hydraulic wing down pressure is too
high and center section is too light.
Hydraulic wing down pressure is too
low and the wing tips are too light.
Rear
gauge
points
synchronization.
Cylinder leaking internally.
Rear gauge point limit valve leaking.
Front gauge point limit valve leaking.
Front and/or rear gauge points out
of synchronization.
Restrictors
are
not
installed.
Restrictors not properly installed.
SOLUTION
Adjust rear gang to the right slightly
less than the average width of the
groove bottoms.
Reduce operating speed. Work
rough
for
twice if necessary.
Increase draft comp pressure 200 -
300 psi relative to the
recommended setting.
Increase draft comp pressure 200 -
300 psi relative to the
recommended setting.
Adjust rear gangs laterally.
Remove air from the cylinders by
holding hydraulic circuit in extend
position for 5 to 10 seconds after full
extension.
See
"Synchronizing and Leveling
Front Gauge Points" on page
Synchronize cylinders by holding
out
of
hydraulic circuit in extended position
for 5 to 10 seconds after full
extension.
Make certain that the indicator
gauge is showing the recommended
pressure and the flow is not
excessive.
Reduce wing down pressure.
Increase wing down pressure.
Synchronize cylinders by holding
out
of
hydraulic circuit in extended position
for 5 to 10 seconds after full
extension.
Repair/replace cylinder.
Replace rear limit valve (on
left-hand wing frame).
Replace front limit valve (on hitch).
Synchronize cylinders by holding
hydraulic circuit in extended position
for 5 to 10 seconds after full
extension.
Smart restrictor fittings should be
properly
installed in wing cylinder base end
points.
Black restrictor fittings should be
installed in the rod ends of wing
cylinders.
4-3.
F-894-0919
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