Lit. No. 68251, Rev. 09
37
May 1, 2021
TROUBLESHOOTING
Problem
Cause
Solution
Snowplow will not stay angled
when plowing.
The angle pressure-relief valve is
set too low.
NOTE: Increasing the
pressure-relief setting will cause
damage to your snowplow. Do not
set the pressure relief greater than
3000 psi.
Check the pressure relief by testing the valve in-line
with the cylinder. Attach a tee
fi
tting to the angle
cylinder hydraulic adapter and connect the hose
and pressure gauge to the tee.
NOTE: The setting
should not exceed 3000 psi.
Snowplow will not angle, pump
works.
Review all probable causes above.
NOTE: Verify coils S3 and S4 for angle functions.
Wing will not stay angled when
plowing.
The angle pressure-relief valve is
set too low.
NOTE: Increasing the
pressure-relief setting will cause
damage to your snowplow. Do not
set the pressure relief greater than
1700 psi.
Test the wing pressure relief. Attach a
fl
uid psi
gauge to the quick connect
fi
tting on the manifold.
The pressure relief should not be greater than
1700 psi.
Wing will not move, pump works.
Control station, harness or cables
may be loose or improperly
connected.
Verify that control station, harness and all cables
are securely connected. Clean if necessary.
Hydraulic lock in the manifold has
occurred.
Loosen cartridge valves S9 and S10 or S1 and
S2 to relieve pressure and retighten. DO NOT
OVERTIGHTEN! Valves should be torqued to a
maximum of 24 ft-lb.
No power to the coils.
Verify that coils S1 and S2 (passenger-side slide
box retract and extend) and S9 and S10 (driver-
side slide box retract and extend) are grounded,
connected properly and receiving power. If no power
is available, diagnose the harness. Review the
harness schematics. If power is present, review the
next step.
Coils are receiving power.
Verify that coils are magnetizing. Position a
screwdriver 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.
Solenoid cartridge may be
contaminated or damaged. A bent
cartridge will not allow the valve to
move freely inside of the cartridge.
Determine a damaged cartridge valve by reversing
the driver-side and passenger-side cartridge valves.
Replace valve if necessary.
Snowplow lowers too slowly.
Variable
fl
ow control valve is not
adjusted properly.
WARNING: Snowplow can fall suddenly. You
can die or be seriously injured. Drop snowplow
to ground before adjusting
fl
ow control.
Turn
fl
ow control valve counterclockwise in small
increments and test.
Review all probable causes for
"Snowplow will not lift."
Verify S5 coil (
fl
oat) or S5 and S8 coils (disconnect)
for magnetism.
Snowplow drops sporadically.
Variable
fl
ow control valve is
opened too far.
WARNING: Snowplow can fall suddenly. You
can die or be seriously injured. Drop snowplow
to ground before adjusting
fl
ow control.
Turn clockwise 1/16 turn and test.
Headlamps will not switch from
the vehicle to the snowplow.
No power or ground to the
headlamp relay.
Verify that the headlamp/ground relay connector is
connected. If the connector is properly attached,
replace the headlamp relay(s).
Содержание POWER PLOW 810-1
Страница 50: ...Lit No 68251 Rev 09 50 May 1 2021 NOTES...
Страница 51: ...Lit No 68251 Rev 09 51 May 1 2021 NOTES...