Blizzard 680LT Installation Instructions & Owner's Manual page 37

Problem
Snowplow will not stay angled
when plowing.
Snowplow will not angle, pump
works.
Snowplow lowers too slowly.
Snowplow drops sporadically.
Headlamps will not switch from
the vehicle to the snowplow.
Lit. No. B64118, Rev. 03
TROUBLESHOOTING
Cause
The angle pressure relief valve is
set too low. NOTE: Increasing the
pressure relief valve will cause
damage to your snowplow. Do not
set the pressure relief greater than
3000 psi.
Review all probable causes
above.
Variable fl ow control valve is not
adjusted properly.
Review all probable causes for
snowplow will not lift.
Variable fl ow control valve is
opened too far.
No power or ground to the
headlamp relay.
37
Solution
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.
NOTE: Verify coils S3 and S4 for angle functions.
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.
Verify S5 coil (fl oat) or S5 and S8 coils (disconnect)
for magnetism.
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.
Verify the headlamp/ground relay connector is
connected. If the connector is properly attached
replace the headlamp relay(s).
March 1, 2009