Great Plains 2025P Operator Manual - Manual (Page 103)

8/14/2006 118-928M
101 Veris Drive Operating Instructions
b. Check to make sure that your desired rate is within the range of the meter that is installed.
c. Inadequate hydraulic flow. Adjust flow control to higher position. Check with flow meter if flow is
suspect.
d. Field speed too high. Check maximum planting rate in seed chart for rate that you are planting.
e. Check sprocket combinations; see Assembly and Parts Manuals for the planter you are operat-
ing (30P and 40P models).
f. Check speed shown on cab console against other speedometer - tractor, planter monitor. If drive
speed is significantly lower, recalibrate speed on drive.
10. Drive plants significantly higher than desired rate:
a. Recheck calibration number and rerun calibration procedure if necessary.
b. Ensure that you have installed the correct seed meter.
c. Check sprocket combinations; see Assembly and Parts Manuals for the planter you are operat-
ing (30P and 40P models)
d. Check speed shown on cab console against other speedometer - tractor, planter monitor. If drive
speed is significantly higher, recalibrate speed on drive.
11. Drive continues to rotate after tractor has stopped:
a. Contamination or wear in proportional valve (PN 19798). Remove and inspect. Blow out with
compressed air. Check o-rings and reinstall. Replace if necessary.
12. Fluid weeping from motor shaft seal:
a. Excessive back pressure in return hose. Check quick coupler connection. Use motor control
port for return if available.
Calibration Troubleshooting:
13. If the time to run for calibration is less than 4 seconds, the cab console will display TIME TOO LOW.
Pressing the FUNCTION key will bring up the ENTER TARGET AMOUNT screen. The target should
be raised to increase the calibration time. If the time is greater than 255 seconds, the cab console
will display TIME TOO HIGH. Pressing the FUNCTION key will bring up the ENTER TARGET
AMOUNT screen. The target should be lowered to decrease the calibration time.
14. While rate calibration is running, one of four error messages may be displayed:
Message Cause Solution
COMM TIMEOUT Power to or communica-
tion with the external
controller was inter-
rupted during calibration. Check power and com-
munication connections
from the cab console to
the external controller
and rerun calibration.
TIME OVER LIMIT The external controller
ran too long in calibra-
tion. Rerun calibration. If the
same message appears,
call technical support.
USER TERMINATED The engage key was
pressed during calibra-
tion. Rerun calibration.
CALIBRATE ERROR The drive did not turn
when calibration began. Check encoder cable
and connection, solenoid
cable and connection,
and hydraulic lever posi-
tion.
Pressing FUNCTION will exit rate calibration from these error screens.