M0275-01
Model 3700
6-4
1/16
TM
Troubleshooting
PTO PUMP DRIVE AND OIL COOLER OPTION
PROBLEM
POSSIBLE CAUSE
SOLUTION
Pump is squealing.
Lack of oil to pump.
Check for plugged suction strainer.
Check oil level.
Oil temperature high.
Low oil level.
Check oil level and add as required.
Desired fan speed cannot be
achieved.
Low oil level.
Check oil level and add as required.
Plugged filter.
Check and change as required.
Vacuum level not displayed.
Digital vacuum gauge console power
OFF.
Turn ON.
Cable not plugged in.
Check connection.
Digital vacuum gauge console
has no power.
Check fuse.
ROW MARKER OPERATION
PROBLEM
POSSIBLE CAUSE
SOLUTION
Right marker lowering slower
than left marker.
Solenoid valve cartridge in port V1 not
opening completely.
Switch with cartridge in port V2. If problem
repeats, replace cartridge.
Hose pinched or collapsed.
Inspect hose routing. Replace or repair
hoses as required.
Left marker lowering slower
than right marker.
Solenoid valve cartridge in port V2 not
opening completely.
Switch with cartridge in port V1. If problem
repeats, replace cartridge.
Hose pinched or collapsed.
Inspect hose routing. Replace or repair
hoses as required.
Both markers lowering.
Solenoid valve cartridge stuck open. If left
marker switch is selected, right cartridge
(V1) is defective. If right marker switch is
selected, left cartridge (V2) is defective.
Replace solenoid valve cartridge.
Neither marker lowers.
Blown fuse.
Check red light on control console. It
should be on if switch is on. If light is not
on, switch to opposite marker position. If
light comes on, switch may be defective.
Replace switch. Otherwise replace fuse.
Coils at V1 and V2 not energized.
Poor ground on wire, bad wire connection
or damaged wire. Repair as required.
Marker flow control valve closed too far.
See “Row Marker Speed Adjustment”.
Neither marker will raise.
Marker flow control valve closed too far.
See “Row Marker Speed Adjustment”.
Right marker will not lower.
Solenoid coil in port V1 not energized.
Check switch on control console. Replace
if defective. Check coil ground wire. Check
for poor connection or damaged wire.
Solenoid cartridge in port V1 stuck closed.
Switch cartridge with one on the planter
you know is operating properly. If right
marker lowers, replace defective cartridge.
Left marker will not lower.
Solenoid coil in port V2 not energized.
Check switch on control console. Replace
if defective. Check coil ground wire. Check
for poor connection or damaged wire.
Solenoid cartridge in port V2 stuck closed.
Switch cartridge with one on the planter
you know is operating properly. If left
marker lowers, replace defective cartridge.
Markers traveling too fast
and damaging rubber stop
on transport stands and/or
damaging pivot at rod end of
marker cylinders.
Marker transport stand not adjusted
correctly to allow marker cushion cylinders
to operate as designed.
See “Row Marker Transport Stand
Adjustment”.
Adjust row marker flow control valve.
See “Row Marker Speed Adjustment”.
Summary of Contents for 3700
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