Marker operation – Great Plains NTA3010 Operator Manual User Manual
Page 37
Great Plains Manufacturing, Inc.
Operating Instructions
33
2014-03-26
160-219M-A
Fan speed is monitored and reported by the seed
monitor, but is manually controlled. The optimum rate
depends on the seed type and treatments. See “Fan
Speed Adjustment” in the cart Operator’s Manual for
further information.
Material Rate Risk:
The proper reading for the magnehelic air pressure gauge is
12 to 25 inches of water. A sudden drop in pressure is a sign of
a possible leak which can adversely affect seeding.
Marker Operation
Great Plains does not manufacture markers for this
model drill. If you purchased markers, the marker
manufacturer has supplied operating instructions.
Carefully read marker manufacturer’s instructions for
safe installation, operation and adjustment. You may also
need the following additional information.
Any markers are on a separate hydraulic circuit on the
drill. The leading air cart has provisions for this circuit,
but also shares the circuit for a cart function.
Refer to Figure 39
Markers use hydraulic receptacles
and
on the air
cart.
This cart circuit is shared with the cart seed auger. On a
cart with a hydraulic fan, a manual diverter valve
switches the circuit between markers
and seed
auger
.
This valve is located at the front right corner of the front
bulk hopper. The valve handle must be set to the back
for the markers to function.
If markers are installed, the wing fold Marker Stop fittings
must be [re]installed. See “No-Marker Height
Adjustment” on page 28.
Figure 38
Fan Air Pressure
26425
Figure 39
Cart Hydraulic Receptacles
26332
Figure 40
Cart Selector for Markers
26417
1
3
2
A
B
1
2
3
2