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HYDRAULIC SYSTEM
The hydraulic unit's valve manifold includes relief
valves to prevent damage to the blade or vehicle
if either end of the blade hits an obstacle. The
valves are preset at the factory and do not need any
adjustments unless the valve manifold is serviced.
When force against the blade causes the pressure
in an extended ram to exceed the set limits, the relief
valve opens, allowing fl uid to escape, and the ram
retracts.
For hydraulic fl uid type and fi lling instructions, see
Hydraulic System, Annual Fluid Change, in the
Maintenance section of this manual.
Drop Speed
Adjustment
(CW = Slower)
Hose Ports
Lift Ram, Base End
Lift Ram, Rod End
DS Angle Ram
PS Angle Ram
Lit. No. 40595, Rev. 05
OPERATING YOUR SNOWPLOW
S2
S3
Solenoid Valve
("E")
("C")
Valve Model
Harness "C" Coil
S1
Harness "B" Coil
S2C1 S3C1
Plow Function
S1
S2C2
S3C2
Raise or Hitch
Lower/Float
Angle Right
Angle Left
Unhitch
Torque Specifications
All Solenoid/Check Valves:
All Solenoid Coil Nuts:
Motor Relay Terminals:
Pressure Test Port
Motor Terminals:
SAE -4 ORB
Hydraulic Information Label
(Located inside hydraulic unit cover.)
Breather
Drain Plug
S1
SV08-22
SV08-47E
S1
Active Coil
S2-C1
S1
S3-C2
S3-C1
S2-C2 & S1
Small 10–15 in-lb
Large 25–35 in-lb
23
Blade Drop
Speed Adjustment
Valve
Manifold
Reservoir
S2
S3
SV08-47C
S2-C1
S3-C1
S2-C2
S3-C2
Active Port
Lift Ram, Base End
Lift Ram, Base End
DS Angle Ram
PS Angle Ram
Lift Ram, Rod End
19–21 ft-lb
48–60 in-lb
50–60 in-lb
48268
May 1, 2021
Motor
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