Great Plains 1625AHL Operator Manual User Manual
Page 104
100
1625AH
Great Plains Manufacturing, Inc.
411-020M
2014-04-21
Hydraulic
marker
functioning
improperly, or
not at all
Marker/Fold switch set to FOLD or OFF.
Hydraulic Selector switch must be set to “Marker”. Set
tractor remote circuit to Neutral or Float before
operating switch.
Air or oil leaks in hose fittings or
connections.
Check all hose fittings and connections for air or oil
leaks.
Low tractor hydraulic oil level.
Check tractor hydraulic oil level.
Loose or missing bolts or fasteners.
Check all bolts and fasteners.
Needle valve plugged.
Open needle valve, cycle markers slowly and reset
needle valve, refer to page 68.
Needle valve(s) in sequence valve
plugged.
Open needle valves, cycle markers slowly and reset
needle valves, refer to page 68.
Marker disk
does not mark
Marker folding linkage does not have
enough slack to allow marker disk to drop
into field depressions.
Maximum down float should be limited by the slot at the
rod end of the marker cylinder, refer to page 68.
Reverse marker disk to pull or throw dirt.
General Troubleshooting
Problem
Cause
Solution