Landoll 9650 FC Operator's Manual page 152

TROUBLESHOOTING GUIDE
PROBLEM
SWEEPS NOT CUTTING, LEAVING
SKIPS
WINGS FOLD TOO FAST
HYDRAULIC - LIFT CYLINDERS NOT
FULLY EXTENDING
HYDRAULIC - ENTIRE UNIT SETTLING
HYDRAULIC - UNIT SETTLING, ONE
WING RAISING
HYDRAULIC - WING SETTLING
HYDRAULIC - UNIT WILL NOT
FOLD/UNFOLD
HYDRAULIC - DEPTH CONTROL VALVE
NOT WORKING
WHEEL BEARING FAILURE
HARROW PLUGS WITH RESIDUE
HARROW REELS PLUGGING
HARROW REELS WILL NOT TURN OR
PUSH SOIL
5-2
PROBABLE CAUSE
Shanks not positioned correctly
Sweeps not wide enough
Sweeps set too shallow
Incorrect sweep angle
Incorrect shank spring adjustment
Bent/broken/loose shank or sweep
Restrictors not properly installed in
cylinders
Lift cylinders not in phase.
Cylinders not installed in proper series.
Hoses not properly connected
Tractor valve leaking
Bad fitting/hose
Center frame cylinder leaking internally on
side of unit that wing is raising.
Wing cylinder leaking
Bad Couplers
Tractor valve not Working
Hydraulic hoses not properly connected
Depth stop contacts depth control valve,
but does not shut off oil.
Implement raises, but will not lower
Seals not properly installed
Harrow set too aggressive
Harrow spring pressure excessive
Excessive down pressure
Depth set too deep for loose or wet
conditions
Reel bearing failure
SOLUTION
Check for proper shank placement
Use wider sweeps
Increase operating depth
Use 47 degree sweeps
Adjust spring shank.
Repair shank or sweep
Black restrictor fittings should be in both
ends of outer fold cylinders and rod end
of inner fold cylinders.
Fully extend cylinders and hold hydraulic
lever until all cylinders are fully
extended
Cylinders not installed in proper series.
Wing cylinders are smaller diameter
than center cylinders
Check hose routing
Unplug unit from tractor, and check if unit
still settling
Repair fitting/hose
Repair center frame master cylinder.
Repair wing cylinder
Replace hydraulic couplers
Try a different known working valve
Check hose connections
Valve plumbed incorrectly
Valve leaking internally.
Valve or manifold plumbed incorrectly
Triple-lip seals should be installed with lips
pointing outward away from the hub.
Reduce tine/tooth angle to allow residue to
flow thru harrow
Harrow operating too deep, reduce spring
pressure/raise harrow.
Reels operating too deep, reduce spring
pressure/raise harrow.
Adjust reel operating depth
Repair reel bearing.
F-605-0221