Troubleshooting
16K PLUS October 2019 8-11
Checking Valve Solenoids
To check the valve solenoids, use the following procedure.
Important: Only use Manual Load or Manual Stack screens when diagnosing problems with the valve.
1. If possible, raise the loader and offset the hitch to help reduce the risk of a crash. If it is not possible, take note of
the loader and hitch position and how far each may be moved before a crash will occur.
2. Turn off the tractor
3. Swap the electrical plug of the non-working valve with an adjacent valve that is known to work.
• Look for any obvious signs of damage to the electrical harness or hydraulic hoses.
• Select a function that is free to move in both directions. It may be necessary to either unplug certain sensors,
or use a metal washer to fool certain sensors to get the function to operate in both directions.
Example of unplugging sensors: If using the hitch inline/offset electrical plug as the “known good” circuit, and the
hitch is offset, unplug the “hitch offset” sensor so that the function will operate in both directions. Similarly, if the
hitch were inline, unplug the “hitch inline” sensor.
Example of fooling sensors: If using the Push Off plug as the “known good” circuit, you will have to use a metal
washer to fool the “bed up” sensor. (or alternatively you could raise the bed all the way up.) Otherwise, the crash
avoidance will prevent you from operating the Push Off circuit in manual mode.
4. Start the tractor and engage hydraulics.
5. Use one of the manual screens to try to move the non-working valve with the buttons for the known working valve.
Warning: Use extreme care when moving the machine. The crash avoidance is disabled in this procedure.
If the valve still does not operate, use the “Measure - Outputs” menu to observe the power going to the valve.
(Remember that crash avoidance may be preventing the function from operating. See step 3.)
• If there is power going to the valve and it still does not operate properly, service the hydraulic valve.
• If the valve operates normally: try operating the known working valve with the buttons for the non-working valve.
Again, use the “Measure - Outputs” menu to observe the power going to the valve.
• If the known-working valve does not operate, check the electrical harness for broken wires or shorts.
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