SNOW PLOW WILL NOT HOLD ANGLE
Bleed air from the system
and snug up gland nuts.
Check couplers and fittings
for leaks.
NO
NO
Does the moldboard
hold left angle & release
from right angle?
Are the "C" Valve
O-Rings in poor
condition?
Is Crossover Relief set
at 3800 + 400 P.S.I.?
Are Crossover O-Rings
in good condition?
Are the Rams mushy?
Can you push the moldboard
6" to 8" by hand?
NO
Replace O-Rings
Replace the
P.A. Block
NO
Change Pilot Check
Ball and Seat.
does snowplow
now hold?
Inspect Crossover Relief.
(Rebuild or Replace)
Does snow plow now
hold angle?
Inspect "C" Valve O-rings
Change if necessary. Does
snow plow now angle?
YES
YES
YES
NO
Replace the
P.A. Block
YES
NO
Set Crossover Relief to
3800 + 400 P.S.I.
Replace Crossover O-Rings
or complete Crossover.
NO
