
3N-4010F, 3N-4010HDF, and 3N-4020F
Troubleshooting
93
2019-03-08
196-359M
b. Check radar gun angle.
c. Check power to system. Less than 12 Vdc power
will cause drive to behave erratically - often
problem manifests itself in speed loop.
8. Drive shuts off while planting:
a. If it occurs after 20 seconds of not planting, such
as turning on headlands, operation is normal
safety shutoff (on units with radar speed signal).
b. Check setting of speed signal interrupter switch -
reposition as necessary to keep actuator from
disengaging while planting.
c. 1.5 second delay shutting off drive - causes:
chain binding, inadequate hydraulics.
9. Drive will not achieve desired rate:
a. Recheck calibration number and rerun
calibration procedure if necessary.
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 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 re-run
calibration procedure if necessary.
b. Check speed shown on cab console against
other speedometer. 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 (p/n
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.