Lit. No. 41298, Rev. 01 February 15, 2019
32
ELECTRICAL & HYDRAULIC SCHEMATICS
CROSSING WIRE
WIRE SPLICE
FUSE
SOLENOID COIL
CIRCUIT GROUND
MOTOR RELAY
BATTERY
MOTOR
IN-LINE CONNECTOR
PARK/TURN LAMP
COMPONENT ENCLOSURE
PRINTED CIRCUIT BOARD
HEADLAMP
PILOT-OPERATED (P/O)
CHECK VALVE
ELECTRICAL LEGEND HYDRAULIC LEGEND
COMPONENT ENCLOSURE
FILTER, STRAINER,
DIFFUSER
ELECTRIC MOTOR
CYLINDER
HYDRAULIC PUMP
FIXED DISPLACEMENT
LINE, TO RESERVOIR
BELOW FLUID LEVEL
FLOW, DIRECTION OF
HYDRAULIC FLUID
LINE, WORKING (MAIN)
LINES JOINING
LINES CROSSING
SPRING
SOLENOID, SINGLE WINDING
VALVE, ADJUSTABLE
PRESSURE RELIEF
VALVE, FLOW CONTROL,
ADJUSTABLE-
NON-COMPENSATED
VALVE, 2-POSITION,
2-CONNECTION
(2-WAY)
CHECK VALVE
VALVE, 2-POSITION,
3-CONNECTION
(3-WAY)
VALVE, 2-POSITION,
4-CONNECTION
(4-WAY)
ORIFICE PLATE
This section contains hydraulic and
electrical schematics to help explain
how the hydraulic unit performs the
different functions. A schematic is an
abstract drawing showing the purpose
of each component in the system. Each
component is represented by a graphical
symbol. The hydraulic and electrical
legends describe each symbol used in the
schematics for this guide.
The fi rst two schematics show an overview
of the complete electrical and hydraulic
systems. Other schematics highlight the
fl ow of hydraulic oil and electrical current for
each function the hydraulic unit performs as
well as the fl ow of electrical current for the
snowplow and vehicle lights.
• Bold lines and gray lines (ground)
represent the circuit being activated
only.
• Shaded components are either
activated or shifted from their normal
position.
NOTE:
Left Side = Driver's Side (DS)
Right Side = Passenger's Side (PS)
Wire Color Code Abbreviations
BLK Black BLU/ORN Blue w/ Orange GRY Gray PUR Purple DRL Daytime Running Lamps
BLK/ORN Black w/ Orange BRN Brown LTBLU Light Blue RED Red MTR RLY Motor Relay
BLK/RED Black w/ Red BRN/GRN Brown w/ Green LTGRN Light Green WHT White P/T SIG Park / Turn Signal
BLK/WHT Black w/ White BRN/RED Brown w/ Red ORN Orange WHT/YEL White w/ Yellow
BLU Blue GRN Green PNK Pink YEL Yellow
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