Western Snowplows Midweight Series, Mechanic'S Manual

Page: 67 / 104

Lit. No. 48163, Rev. 00 March 15, 2016
67
ANGLE LEFT — ELECTRICAL
2-PLUG SYSTEM
System Response
1. By activating the angle left (L on the control
face) function on the cab control, the control
sends a signal to the Plow Module to complete
the ground path for the electrical circuit,
activating the motor relay and solenoid
cartridge valves S2 and S3.
2. Hydraulic fluid from the pump flows through
activated S3 and S2 and into the base end of
the PS ram, causing it to extend.
3. Pressure within the hydraulic circuit causes the
P/O check valve (PC1) to open.
4. The retracting DS ram pushes the hydraulic
fluid out of its base end through the open P/O
check valve, through activated S3, and back to
the reservoir.
NOTE: Battery voltage is supplied to the plow
module, the motor relay and the 3 solenoid
coils when the snowplow is connected to the
vehicle.
G G
A
A
A
B
C
E
D
F
B
C
D
E
F
H
K K
H
J J
A
B
A
G G
B
D
C
F
E
D
B
C
F
E
H
K K
H
J J
12V
COM
12V
M/R
S2
S3
S1
12V
Plow
Mo
dule
4-Amp Fuse: Motor Relay
4-Amp Fuse: S1, S2, S3
Pump
Motor
Motor
Relay
WHT
TAN
BLK
RED
RED
RE
D
S1
S2
S3
BLK
RED
RED
WHT
GRN
BLU
RED
+
–
BLK
RE
D