Great Plains 3PYP Operator Manual User Manual
Page 87
Great Plains Manufacturing, Inc.
Troubleshooting
83
2014-09-09
401-312M
Air line plug
between
Y-tube &
meter
Improper air hose routing.
With machine folded the air lines should be tight. With it
unfolded they should form a gentle horizontal “S” shape
through the holders with no big sags.
Air lines
plugging
above air box
at fold area
Fan too slow.
Speed up fan.
Improper air hose routing.
With machine folded the air lines should be tight. With it
unfolded they should form a gentle horizontal “S” shape
through the holders with no big sags.
Hydraulic
marker
functioning
improperly
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 54.
Needle valve(s) in sequence valve
plugged.
Open needle valves, cycle markers slowly and reset
needle valves, refer to page 54.
Wing Fold Switch ON
Turn Wing Fold switch OFF
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 54.
Reverse marker disk to pull or throw dirt.
Problem
Cause
Solution