Lit. No. 41298, Rev. 01 February 15, 2019
64
TROUBLESHOOTING
WARNING
Keep 8' clear of the blade when it is being
raised, lowered or angled. Do not stand
between the vehicle and blade or directly in
front of the blade. If the blade hits or drops
on you, you could be seriously injured.
Perform this test if the control lights up and/or turns
on, but the motor does not run.
1. Check the motor relay fuse on harnesses B.
Replace if fuse is blown, then retest snowplow.
2. Remove the coil fuse F1 in harness B. Remove
the 8" red battery cable from the large terminal
of the motor relay and isolate it. Removing
the fuses and isolating the battery cable will
eliminate the potential of accidental blade
movement during testing.
3. Check for 12V at the small terminal of the motor
relay with the red wire attached to it. If 12V is not
present, recheck the coil fuse F2 in harness B. If
the fuse is good, check the red wire in harness B.
Replace/repair either the wire or the harness as
needed.
4. If 12V is present at the small relay terminal with
the red wire, turn the control ON, then check
for switched ground on the small terminal with
the black wire attached to it while activating
any function except lower. If switched ground is
not present, check the black wire in harness B
of the Plow Module. Replace/repair either the
wire or the harness as needed.
6. If switched 12V is present at the empty large
motor relay terminal, replace the motor.
7. Once repair/testing is completed, reinstall
fuses and 8" red battery cable, then retest
snowplow.
MOTOR AND MOTOR RELAY TEST
Clamp Plow Cable
with 1/2"–1"
Exposed Braid
Black
Red
Red Wire Daisy
Chain from "B"
Harness to
S1, S2, S3
S1
S2
S3
White from
"B" Harness
to S1
Green from
"B" Harness
to S2
Blue from
"B" Harness
to S3
"B" Harness
"A" Harness
from Plow Cable
Blank
Connector
4A Fuse
Module
1/4-20 x 1/4
Tapping Screw (2)
60–70 in-lb
1/4-20 x 1/4
Tapping Screw (2)
60–70 in-lb
8" Red Cable
to Motor (+)
5/16-24 Nut (2)
35 in-lb Max
10-32 Nut (2)
15 in-lb Max
Black Wire from
"B" Harness
Red Wire from
"B" Harness
3/8-16 x 1
Button Cap Screw (3)
22–27 ft-lb
Assemble Cables
Between Flat Washers
5. Check for switched 12V at the empty large
motor relay terminal while activating any
control function except LOWER. The empty
terminal is the terminal that would normally
contain the 8" red battery cable. If switched
12V is not present, replace the motor relay.
To Next Page
Loading...
