Lit. No. B64118, Rev. 03 19 March 1, 2009
HYDRAULIC GUIDE
Milwaukee, Wisconsin 53224
B63177
Hydraulic Valve & Hose Port Guide
Models 680LT & 720LT
FC
3
S5
S6
S8
S4
S3
124
RV2 RV1
Pressure Gauge
Quick Connect
Clockwise – Decrease Snowplow Drop Speed
Counterclockwise – Increase Snowplow Drop Speed
If being used with auxiliary hydraulics, recommended for systems having a flow rated at 4–30 gallons per minute (gpm) and a
maximum pressure rating of 3,000psi.
HYDRAULIC HOSES
Port Function
1 Angle Right – Driver-Side Cylinder
2 Angle Left – Passenger-Side Cylinder
3 Raise – Lift Cylinder (Base)
4 Lower – Lift Cylinder (Rod)
RELIEF VALVES
Valve Function
RV1 Driver-Side Angle Cylinder Relief
RV2 Passenger-Side Angle Cylinder Relief
VARIABLE FLOW CONTROL VALVE
Valve Function
FC Snowplow Drop Speed Adjustment
NOTE: Energize the following solenoids for the functions:
S3 Angle Left – Passenger-Side Cylinder
S4 Angle Right – Driver-Side Cylinder
S5 Float
S6 Raise – Lift Cylinder (Base)
S5 & S8 Lower – Lift Cylinder (Rod)
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