Boss Snowplow MSC08042C Owner's Manual page 90

Troubleshooting Guide
PROBLEM
9. Wing(s) extend, but will not
retract or retract slowly.
DIAGNOSTIC CHECK
Check power/ground cables
and control cable are
connected properly.
Check wiring on valve block
for proper connections.
Load test battery.
Check pressure at pressure
port of pump.
Check WING OUT solenoid
valve.
Check wiring and control
box.
Check power/ground cables
and control cables are
connected properly.
Check wiring on valve block
for proper connections.
91
RESULT
Connect.
Refer to the wiring diagram in
your installation manual.
Replace battery if weak or
defective.
If pressure is less than 2500
psi (at end of lift). Motor
brushes may be defective,
pump pressure relief valve
may be contaminated,
damaged, or set less than
2500 psi, pump may be worn.
WING OUT solenoid valve not
opening completely. Replace.
Refer to the wiring diagram in
your installation manual.
Connect.
Refer to the wiring diagram in
your Installation manual.