Landoll VT Plus 7550, Operator'S Manual

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5-1
Chapter 5
Troubleshooting Guide
The Troubleshooting Guide, shown below, is included to help you quickly locate problems that can happen using your
7550 VT. Follow all safety precautions stated in the previous when making any adjustments to your machine.
PROBLEM PROBABLE CAUSE SOLUTION
UNIT NOT LEVEL, LEAVING CENTER
RIDGE Leveler not adjusted properly Adjust leveler, lower front gang
Hitch adjustment too low Raise implement hitch point
Gauge wheels carrying too much weigh Raise gauge wheels
UNIT NOT LEVEL, LEAVING CENTER
FURROW Leveler not adjusted properly Adjust leveler, raise front gang
Hitch adjustment too high Lower implement hitch point
UNIT NOT LEVEL, LEAVING RIDGE ON
OUTSIDE OF UNIT Unit not level front to rear, front running too
deep Adjust unit to be level.
Wings not level with center frame Adjust side to side level. Wings should
typically be set even with or slightly
higher than center section
Operating speed too fast, front gang
moving soil past rear gang Slow down to proper operating speed for
field conditions.
Hitch adjustment too high Lower implement hitch point.
Gauge wheels too high, allowing wings to
go to deep Properly reset gauge wheels.
UNEVEN DEPTH Frame not level side to side Level center frame side to side.
Wing frames and center frame not level Level wing frames to center frame
Lift cylinders not in phase Fully extend lift cylinders and hold
hydraulic lever until all cylinders are
fully extended
Lift wheels not carrying enough weight Adjust depth stop and raise implement
Fold cylinders not fully extended to allow
wings to flex extend fold cylinders fully.
Tire pressure too low Check inflation
Unit not level front to rear Adjust unit to be level.
UNIT SIDE DRAFTS OR MOVES SIDE
TO SIDE Lift wheels not carrying enough weight Adjust depth stop and raise implement.
Unit not level front to rear Adjust unit to be level.
Level unit side to side Level center frame and wing frame to
center frame side to side.
Gauge wheels too high, allowing wings to
go to deep Properly reset gauge wheels.
FRAMES BUCKLING, NOT EVEN Lift wheels not carrying enough weight Adjust depth stop and raise implement
Wing frames and center frame not level to
each other Level wing frames to center frame
Gauge wheels not set correctly or uneven Set gauge wheels properly.
WHEEL BEARING FAILURE Seals not installed correctly Install seals with the lips pointing outward
away from the hub.
HYDRAULIC - LIFT CYLINDERS NOT
FULLY EXTENDING Lift cylinders not in phase 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. Reinstall cylinders
properly.
Hoses not properly connected: Check hose routing