Western MVP PLUS Series User Manual

Lit. No. 27366, Rev. 01 February 15, 2008
52
LEFT EXTEND – ELECTRICAL
System Response
1. By activating the WING function
on the left side of 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 S4 & S7. The
wing mode toggles between
extend and retract.
NOTE: See the System Overview –
Controls Section for operation
information.
2. Hydraulic fluid from the pump
flows through activated S4 & S7
into the base end of the DS ram,
causing it to extend.
3. The extending DS ram pushes
the hydraulic fluid out of its rod
end. This fluid mixes with the
hydraulic fluid from the pump and
passes through activated S7 into
the base end of the extending
DS ram.
NOTE: This is called a regenerative
hydraulic circuit. Even though
both sides of the ram piston will
experience the same hydraulic
pressure, the ram will extend due to
unequal force. The difference in
area between the base end and rod
end of the ram piston creates a
greater force on the base end which
extends the ram.
Force = Pressure X Surface Area.
NOTE: Battery voltage is supplied
to the Plow Module, the motor
relay and the 11 solenoid coils
when the snowplow is connected
to the vehicle.
RED
Plow Module
4 Amp Fuse: Motor
Relay
4 Amp Fuse: S1, S2, S3
Pump
Motor
Motor
Relay
GG
A
A
A
B
C
E
D
F
B
C
D
E
F
H
KK
H
JJ
A
B
A
GG
B
D
C
F
E
D
B
C
F
E
H
KK
H
JJ
4 Amp Fuse: S8, S9,
S10, S11
4 Amp Fuse: S4, S5,
S6, S7
Wire Side View
10-Pin Connector
BB
A
C
A
HH
D
C
F
G
EE
D
C
F
G
K
J
K
J
WHT
TAN
BLK
RED
RED
RED
S1
S2
S3
BLK
RED
RED
WHT
GRN
BLU
RED
12V
COM
12V
M/R
S2
S3
S1
12V
S10
S9
S8
S11
S7
S6
GRY
RED
WHT
GRN
ORN
RED
BRN
YEL
S4
S5
BLK
TAN
S9
S8
S5
12V
S10
S11
S7
S6
S4
12V
E
D
B
C
A
F
G
J
H
K
+
–
BLK

Western MVP PLUS Series Specifications

General

Brand	Western
Model	MVP PLUS Series
Category	Snow Blower
Language	English