Automobile Accessories User Manual

30 Troubleshooting Guide (1 of 2)
Problem Probable Cause(s) Suggested Remedy
Plow functions will not work after all connect- S5 coil is not magnetizing. S5 coil should magnetize with each function.
ions are made or plow functions are slow.
Solenoid cartridge valve may be contaminated or damaged. Determine a damaged cartridge valve by reversing the
A bent or over torqued cartridge will not allow the valve to driver’s side and passenger’s side cartridge valves one
move freely inside of the cartridge. at a time. Replace valve if necessary.
Plow functions start and terminate suddenly. Skid steer hydraulic fluid flow is set to variable flow. For plow functions to work, the skid steer hydraulic fluid
flow should be set to continuous flow. Review your skid
steer operation manual for proper flow settings.
Multiple valves function simultaneously. Diodes may be corroded or damaged. Clean diodes thoroughly and/or replace.
Wire harness may be damaged. Verify harness is not damaged. Review wire schematic(s)
to troubleshoot connection(s). Replace if needed.
Plow functions are reversed. (i.e. Driver’s side Hydraulic hoses are connected wrong or coils and wiring Review the Hydraulic Valve & Hose Port Identification
wing extends when passenger’s side wing is are incorrect. Guide under the A-frame cover for proper port locations
activated from the control.) and/or place respective coils over correct valves.
Both wings extend when the skid steer Pressure (P) and tank (T) hoses are installed in the wrong Review the skid steer operation manual to determine the
hydraulics are turned on. position on the skid steer. pressure and tank connections.
Plow angles only one way. Skid steer computer conflicts with cylindrical connection. Using a jumper wire, connect pin K to pin L at the back
of the cylindrical connector (cylindrical connector only).
Wing will not stay angled when plowing. The wing pressure relief valve is contaminated. Test the wing pressure relief. Attach a T-fitting with a fluid
PSI gauge to the base end of the wing cylinder. Pressure
relief should not be greater than 1700 PSI. Replace if
less than 1500-1700 PSI.
Plow will not stay angled when plowing. The angle pressure relief valve is set too low. NOTE: Follow the guidelines indicated above; however, the PSI
Increasing the pressure relief valve will cause damage setting should not exceed 3000 PSI. NOTE: If the plow
to your plow. Do not set the pressure relief greater than is floating back when angled to the right, adjust the left
3000 PSI. pressure relief valve and vice versa.
Wing will not move. Control station, wire harness or cables may be loose or Verify control station, wire harness and all cables are
improperly connected. securely connected. Clean if necessary.
No power to the cartridge valve. Verify S9 & S10 coils (passenger’s side slide box retract
and extend) and S1 & S2 (driver’s side slide box retract
and extend) are connected properly. Diagnose the wire
harness. Review all wire harness schematics. If power is
present, review the next step.
Coils are receiving power. Verify that the coils are magnetizing. Position a screw-
driver inside of the coil. When the respective function is
activated, the screwdriver is drawn to the side of the coil.
If the coil is not drawn to the screwdriver, replace the coil.
If magnetization is present, review the next step.
Troubleshooting Guide
Prior to diagnosing your Power Plow, verify that all connectors (rubber connectors, plastic electric connectors,
ground and power wire terminals, coil wire and extension harnesses) are free of corrosion and are well lubricated
with white lithium grease. Insuring that all connectors are in good working order will save time in determining your
snowplow attachment’s service needs.