SNOW PLOW WILL NOT RAISE
Does the
Motor Operate?
Is there power
going to
the motor?
Are all electrical
connections clean
and tight?
Is Battery Charged?
Charge Battery -
Clean and tighten
all electrical
Connections.
Remove motor.
Does motor run when
12 volts is applied?
Inspect Motor -
Armature, Brushes
Repair or Replace
Motor as necessary
Is there power
going to the
motor solenoid,
at White Wire?
Is there power
leaving the
switch?
Check switch
for Continuity
Check Wires at
Molded connector.
Can the pump
shaft turn by
hand?
Replace pump.
Replace the
Motor
Solenoid.
Replace the
Wiring
Harness.
Is the Fuse
OK?
Is Ground Cable
attached to the
Negative (-)
Battery Terminal?
Replace the
Raise
Switch.
Does the snow plow
angle to the left
instead of raising?
Does the snow plow
angle when the
Angle Switch
is activated?
Is there pressure
(or flow) at the
Filter port?
Is the "A" Valve
stuck in the
open position?
Clean or Replace
"A" Valve.
-Retest -
Does snow plow
raise?
Disassemble unit -
Inspect O-rings,
Cylinder,Piston
assembly.
Look for blockage in
Sump Casting
passages.
Can pump relief pressure
be adjusted to
1650 + 50 P.S.I
E-46 & E-47
Are the
Filters
Clogged?
Clean
or
Replace
Filters.
Is the motor turning
the proper direction?
Check for clogged
strainer - Is oil getting
to the pump?
Check Brushes for
proper installation or
replace motor.
Clean strainer
and flush the
system completely.
Replace
the
Pump.
Is the pump
shaft turning
tightly?
Does the motor
armature turn
tightly?
Replace
the
Pump.
Repair or Replace
the motor.
Replace Fuse.
Check for short
in Harness,
"B" Coil, Switch
Connections,
Motor Solenoid,
Electric Motor.
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
NO
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
YES
Does the "B" Coil
(Red Wire) have
magnetism?
Are the "B" Valve
O-Rings in good
Condition?
Replace
O-Rings.
Clean or
Replace the
"B" Valve
and retest.
Replace P.A. Block
with E-46 plate and
retest. - Does snow
plow Raise now?
Replace
Sump Base.
Replace
P.A. Block
Is there power to
the "B" Coil?
(Red Wire)
at Harness
Is there power
leaving the switch
at the red wire?
Replace
"B" Coil.
Replace
the wiring
harness.
Replace
the Raise
switch.
Are wires in
molded connector
making contact
with the switch?
Is the fluid level
1-1/2" below
filler hole?
ADD M-1
Fluid
