Problem
Possible Cause
Corrective Action
1. The hydraulic-fluid level is incorrect.
1. Check the hydraulic fluid level and
fill if required; refer to Checking the
Hydraulic Fluid.
2. The power/ground cables and/or the
control cables are not connected
properly.
2. Connect the cables.
3. The wiring connections on the
hydraulic valve manifold are not
connected properly.
3. Refer to the wiring schematic and
connect the wiring properly.
4. The battery is damaged or depleted.
4. Load a test battery and replace it if
necessary.
5. The pump pressure relief valve is
less than 2500 psi, contaminated, or
damaged.
5. Check the pressure at the hydraulic
lift cylinder port of the hydraulic power
unit. If the pressure is less than 2500
psi (at the end of the lift), the hydraulic
pump motor may be defective, the
main pump pressure relief valve may
be contaminated, damaged, set lower
than 2500 psi, or the pump may be
worn. See an authorized BOSS dealer
for an adjustment or to replace the
hydraulic power unit assembly.
The plow wing(s) do not extend, or they
extend slowly.
6. The extend solenoid valve or valve coil
has failed.
6. Replace the solenoid valve.
1. The power/ground cables and/or the
control cables are not connected
properly.
1. Connect the cables.
2. The wiring connections on the
hydraulic valve manifold are not
connected properly.
2. Refer to the wiring schematic and
connect the wiring properly.
The plow wing(s) do not retract, or they
retract slowly.
3. The retract solenoid valve or valve coil
has failed.
3. Check for voltage between the solenoid
valve terminal and ground with the
ignition switch and the control switch
is in the Wing In position. If voltage is
present, the solenoid valve or valve
coil has failed. Replace the solenoid
valve. If voltage is not present, check
the wiring and the switch box control.
The plow wing(s) retract too quickly while
plowing.
1. The pressure relief valve is set too low.
1. See an authorized BOSS dealer for
pressure relief valve adjustment.
1. The seals and fittings are loose or
worn.
1. Check the seals and fitting connections.
Tighten or replace as necessary.
2. The rods are pitted or rough.
2. Polish them with a copus cloth or extra
fine steel wool.
Hydraulic fluid leaks from the cylinders.
3. The breather vent on the lift cylinder is
damaged.
3. Check for a leaking cylinder breather
vent on the lift cylinder. If hydraulic
fluid leaks from the breather vent,
replace the lift cylinder.
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Содержание MSC12060
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