Great-plains 2525P Operator Manual User Manual Page 89

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4/23/2010
118-915M
87
Veris Drive Operating Instructions
Veris Drive Sprocket Change
For proper operation on finger meters (high range) it will
be necessary to switch from 12 tooth to 24 tooth Veris
Drive sprocket.
Refer to Figure 124
1. Loosen chain idler. Remove Veris drive chain. Pull
retaining clip from sprocket spacer (1). Remove
spacer (1) from Veris drive shaft.
2. Slide 12 tooth sprocket (2) and 24 tooth sprocket (3)
towards Veris drive until they rest against inside
locking collar (4).
3. Replace spacer (1) on shaft between 24 tooth
sprocket (3) and outside locking collar (5). Hold
spacer in place with retaining clip. Install Veris drive
chain and tighten chain idler.
4. Reverse this procedure to switch back to 12 tooth
sprocket (2) when operating 20 and 25 series
meters.
NOTE: Make sure and switch to proper sprocket on
both drives.
Calibration Table-Finger Meter (High Range)
Motor 24T Driver-Mainshaft 36T Driven
** Refer to seed chart to determine optimum planting speed for your nominal rate.
NOTE: Finger Meters require 24 tooth sprocket on Veris drive. Refer above for sprocket change.
Figure 124
Veris Drive Sprocket Change
Crop Row Spacing Number of cells Min. Rate Max. Rate Cal #
Corn 20” 6 Finger Meter 13200 35800 750***
Corn 20” 12 Finger Meter 17500 47700 1501**
Corn 30” 6 Finger Meter 8800 24000 500***
Corn 30” 12 Finger Meter 17500 47700 1000**
Corn 38” 6 Finger Meter 9200 21000 395***
Corn 38” 12 Finger Meter 28000 50000 790**
Corn TR 30” 6 Finger Meter 17500 47500 1000**
Corn TR 30” 12 Finger Meter 35000 96000 2001**
Corn TR 38” 6 Finger Meter 18500 50000 790***
Corn TR 38” 12 Finger Meter 28000 80000 1580**
1. Press Engage key to activate drive. Green light
above Engage key will illuminate.
NOTE: If you do not move within 10 seconds, the
automatic disengagement feature will disengage
the drive. To begin planting again, you must press
the Engage key.
2. Console display shows two numbers while operat-
ing: “Set” rate is the rate you tell the system to
plant, and the “Out” rate is the calculated rate
based on the actual rotations of the drive. The
“Out” reading is monitoring the drive system;it
isn’t monitoring population. It verifies that the drive
system is functioning properly.
Note: The “Out” readings will normally fluctuate within
5% of the “Set” rates. This fluctuation is evidence of
the drive system compensating for minor fluctuations
in ground speed.
3. If “Out” rate varies from the “Set” rate by more than
20%, an audible alarm will sound.
4. If Controller is powered directly from battery or un-
switched power port, make sure to power Console
off when tractor is shut down. This prevents tractor
battery drain.
22880
*** Extremely high rates on wide row spacing may require lower ground speed - refer to seed charts for mph limits.
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