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Troubleshooting Guide (1 0f 2)
Problem
Probable Cause(s)
Suggested Remedy
Plow functions will not work after all connect-
Solenoid cartridge valve may be contaminated or damaged.
Determine a damaged cartridge valve by reversing the
ions are made or plow functions are slow.
A bent cartridge will not allow the valve to move freely
driver’s side and passenger’s side cartridge valves.
inside of the cartridge.
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.
Diode pack may be corroded or damaged.
Clean diode pack 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.
Review the Sequencing Valve & Hose Identification
wing extends when passenger’s side wing is
Guide under the A-frame cover for proper port locations.
activated from the control.)
Skid steer pump relief noise can be heard.
3/4” hydraulic pressure (P) and tank (T) hoses are installed
Review the assembly diagrams on pages 19 and 20 for
Plow movement is broken or will not move.
in the wrong ports.
proper hose installation. (Note: The “Tank” hose contains
a 90˚ swivel fitting and installs on the top port labeled “T”.)
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 set too low. NOTE:
Test the wing pressure relief. Attach a T-fitting with a
Increasing the pressure relief valve will cause damage to
fluid PSI gauge to the base end of the wing cylinder.
your plow. Do not set the pressure relief greater than
Pressure relief should not be greater than 1500 PSI.
1500 PSI.
Review the illustration on page 33 to increase the
pressure relief settings.
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 S1 & S2 coils (passenger’s side slide box
retract and extend) and S9 & S10 (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 power 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.
