Problem
Possible Cause
Corrective Action
1. The hydraulic-fluid level is low.
1. Check the hydraulic-fluid level; refer
to the Checking the Hydraulic Fluid
section.
2. The power/ground cables or the control
cable are not connected.
2. Connect the cables.
3. The wiring on the valve block is not
connected.
3. Refer to the wiring schematic.
4. The battery if it is weak or needs
replacing.
4. Load a test battery and replace it if
necessary.
5. The motor brushes are bad.
5. Check the motor brushes and replace
them if necessary.
6. The pump pressure relief valve is
set to less than 172 bar (2,500 psi),
contaminated, or damaged.
6. Ensure that the pressure is set to 172
bar (2,500 psi). Check the pressure
again. If it is less than 172 bar (2,500
psi) at the end of the lift, clean or
replace the pressure relief valve.
7. The pump is worn.
7. Replace the pump.
8. The Raise control solenoid valve is not
opening completely.
8. Replace the valve.
The plow does not raise or raises slowly.
9. The Lower control solenoid valve is
stuck open.
9. Replace the valve.
1. The fittings are loose or the O-rings
are damaged.
1. Tighten loose fittings. See your
authorized BOSS dealer for a seal kit.
Oil leaks from the lift cylinders.
2. The rods are pitted or rough.
2. Polish them with a copus cloth or extra
fine steel wool.
The vehicle battery dies when the vehicle
is turned off.
1. The wire harness is not connected to a
keyed fuse source.
1. Connect the wire harness to a
keyed fuse source; refer to the wire
schematic.
1. There is a short in the controller wiring.
1. Repair or replace the controller.
2. There is a short in the wire harness.
2. Repair or replace the wire harness.
The vehicle battery dies when all of the
switches are in the Neutral position.
3. There is a short in the valve coils.
3. Replace the valve coils.
1. The terrain is too steep.
1. Avoid steeply sloped areas.
2. The pump reservoir is overfilled.
2. The hydraulic fluid level should be
within 2 cm (3/4 inch) of the top of the
reservoir.
Fluid is running out of the fill cap of the
hydraulic pump.
3. The plow is hitting snowbanks too
hard.
3. Do not plow recklessly.
The pump chatters when raising or angling
the plow.
1. The hydraulic-fluid level is low.
1. Check the hydraulic-fluid level; refer
to the Checking the Hydraulic Fluid
section.
While trying to raise the plow, the wing(s)
extend prior to raising the plow and do(es)
not retract.
1. The pressure or return lines are
incorrectly routed.
1. Ensure that the pressure line is
connected from the “P” on the pump
to the “P” on the valve manifold, and
the return line is connected from the
“T” on the pump to the “T” on the valve
manifold.
1. The wing-return-solenoid valve on the
manifold is contaminated.
1. Clean or replace it.
The wings drift back when extended.
2. The pressure-relief valve is
contaminated.
2. Clean or replace it.
27
Содержание Drag Pro 180Z
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