Blizzard Snowplows 760HD - Manual (Page 36)

April 1, 2006 36 Lit. No. B64090, Rev. 00
TROUBLESHOOTING
Problem Cause Solution
Plow will not stay angled when
plowing.
The angle pressure relief valve is
set too low. NOTE: Increasing the
pressure relief valve will cause
damage to your plow. Do not set
the pressure relief greater than
3000 PSI.
Check the pressure relief by testing the valve inline
with the cylinder. Attach a tee fitting to the angle
cylinder hydraulic adapter and connect the hose and
pressure gauge to the tee. NOTE: The setting should
not exceed 3000PSI.
Plow will not angle, pump works. Review all probable causes above. NOTE: Verify coils S3 & S4 for angle functions.
Variable flow control valve is not
adjusted properly.
WARNING: Snowplow can fall suddenly. You
can die or be seriously injured. Drop snowplow
to ground before adjusting flow control.
Turn flow control valve counterclockwise in small
increments and test.
Plow lowers too slow.
Review all probable causes for
plow will not lift Verify S5 coil (float) or S5 & S8 coils (disconnect) for
magnetism.
Plow drops sporadically.
Variable flow control valve is
opened too far.
WARNING: Snowplow can fall suddenly. You
can die or be seriously injured. Drop snowplow
to ground before adjusting flow control.
Turn clockwise 1/16 of a turn and test.
Headlights will not switch from the
vehicle to the snowplow. No power or ground to the
headlight relay.
Verify the headlight/ground relay connector is
connected. If the connector is properly attached
replace the headlight relay(s).