Great Plains 2525P Operator Manual - Manual (Page 88)

2525P and 2520P
118-915M 4/23/2010
86
Operations
Before going to the field:
1.
Once calibration procedure above has been
followed, Console will store the calibration and
rate information until new information has
been entered.
Refer to Figure 122
2. Turn on Console by pressing On/VR key.
Pressing the On/VR key twice will put the unit
in VR (Variable Rate) mode. Leave Console in
manual mode.
NOTE: For units with P/N 21567 skip step 3.
3.
To double-check calibration before planting,
follow same procedure as for mechanical
ground drives as outlined in Great Plains Pre-
cision Seeding System Operator’s Manual,
with these differences:
• Volumetric: use extreme caution when per-
forming this calibration to prevent injury due to
drive entanglement. Also, turn drive gauge
wheel with a consistent speed of at least 30
rpm for maximum calibration accuracy.
• Singulated: Rather than calibrating from a
standing start, measure the distance as listed
in the GP manual, and set two flags. Start driv-
ing far enough in advance of the first flag that
your unit is operating at field speed (min. 3
mph) during the calibration distance.
In Field:
Refer to Figure 123
1. Turn on Controller Console by pressing On/VR
key. Green light above On/VR key will illumi-
nate when power is on. Pressing
On/VR key twice will put unit in VR mode. VR
will appear on the screen along with the Rate
being sent from computer. Press On/VR key
again to toggle back to manual mode. (Mode
and rate changes take effect with the release
of key.)
2. To change rates manually whether in manual
or in VR mode, simply touch Up/Down arrow
keys. This will change Controller to rate you
select manually. To return to VR, simply touch
On/VR key to toggle back to VR mode.
3. Engage hydraulic flow by pushing FORWARD
on tractor remote hydraulic lever. Remote le-
ver must be LOCKED OPEN in this position to
provide constant flow to drive motor.
• John Deere tractors with Sound-Gard ®
body: Use lever lock clip to lock lever forward.
Figure 122
Figure 123
22710
22734
• See your tractor dealer for lock purchase and instal-
lation.
• John Deere 7000 Series tractors: Rotate valve de-
tent selector to motor position to lock lever in for-
ward position.
• John Deere 8000 Series tractors: Set timer to con-
tinuous. Push lever forward until detent clicks.
• Case-IH Magnum tractors: Lock lever forward in
detent position. You may need to turn up detent
pressure to its maximum setting. Do not tie hydraulic
lever past detent position with a strap. See your trac-
tor dealer for details.
• Other tractors: Lock lever forward in detent posi-
tion. You may need to turn detent pressure to maxi-
mum or use a mechanical detent holder to hold lever
forward. See your tractor dealer for proper means of
providing constant flow.