Western HTS Mechanic's Manual page 57

STRIKING AN OBJECT WHILE PLOWING
Blade Movement: Striking an
Object While Plowing
Control: None
System Response:
1. Hydraulic fl uid is trapped in the
base end of the cylinders by the
relief valves, the P/O check valve
(PC1) and solenoid cartridge
valve S2.
2. When the snowplow contacts an
object, the force of the impact
increases the hydraulic pressure
in the base end of the cylinder.
When the pressure exceeds the
relief valve pressure setting, the
relief valve opens allowing oil to
fl ow to the base of the opposite
cylinder.
Lit. No. 41467, Rev. 01
Force applied
when backdragging
ANGLE RIGHT
Pump
Force applied
when pushing
ANGLE LEFT
Quill
Angle
Relief
PS
Angle
Relief
Pump Relief
Filter
LIFT
Raise Lower
Scrape
Lock
Return to Reservoir
57
Draws Fluid
on Lower
April 15, 2021