Angle Left - Western HTS Mechanic's Manual

ANGLE LEFT – ELECTRICAL
BLK
Pump
Motor
RED
Motor
Relay
BLK
RED
S1
WHT
S2
GRN
S3
BLU
Lit. No. 41467, Rev. 01
A
A A
B B
TAN C C
WHT D D
E E
RED F F 12V
G G
H H
J J
BLK K K COM
4A Fuse: S1, S2, S3
4A Fuse: Motor
Relay
B
RED A A 12V
B B
C C S3
S2
D D
S1
E E
F F M/R
G G
H H
J J
RED K K 12V
C
Wire Side View
10-Pin Connector
A K
B J
C H
D G
E F
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 fl uid from the pump
fl ows 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 fl uid 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 three solenoid coils
when the snowplow is connected
to the vehicle.
April 15, 2021
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