Great Plains YP1625 Operator Manual - Manual (Page 79)

Great Plains Manufacturing, Inc. Troubleshooting 75
03/12/2012 401-226M-A
Null4-AAC:
End of “Troubleshooting”.
Seed
blowing out
of pro-box
door area Fan too fast. Slow down fan. If already at 3000 rpm, reset fan to 3800 rpm
and use fan butterfly valve to reduce airflow.
Seal from airbox to hopper damaged
or not adjusted. Inspect and adjust seal. Seal should be intact, and compress
to about
1 ⁄
2
in (13mm) under seed container.
Air lines
plugging
between air
box and Y
splitters Fan too slow. Speed up fan.
Air leaks between manifold and split-
ters Check for leaks and correct as needed.
Improper hose routing, sags or kinks With planter unfolded, hoses should for a gentle “S” shape
through the holders, with no deep sags.
Air lines
plugging
between Y-
tube and
meter Sag or kink in air hose. Check air tube placement in tube mount weldment. If correct,
shorten any hose that has stretched due to age.
Meter is shut off but Y-tube is open. Shut off Y-tube.
Air tube assembly not positioned on
correct tab. Move assembly to properly position Y-tubes over row meters.
Hydraulic
marker
functioning
improperly,
or not at all
Marker/Fold switch set to Fold. CFM Switch must be set to “Marker”. Set tractor remote cir-
cuit to Neutral or Float before operating switch.
Marker/Aux valve set to Aux On a planter with optional Auxiliary Hydraulics, selector valve
must be set to Marker for markers to function. Set tractor
remote circuit to Neutral or Float before changing valve.
Air or oil leaks in hose fittings or con-
nections. 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 49.
Needle valve(s) in sequence valve
plugged. Open needle valves, cycle markers slowly and reset needle
valves, refer to page 49.
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 49.
Reverse marker disk to pull or throw dirt.
Auxiliary
Hydraulics
Inoperative Marker/Fold switch set to Fold CFM Switch must be set to “Marker” for Aux to function. Set
tractor remote circuit to Neutral or Float before switching.
Marker/Aux valve set to Marker Selector valve must be set to Aux. Set tractor remote circuit
to Neutral or Float before changing valve.
Problem Cause Solution