9
EXLANATION OF PRESSURES
HYDRAULIC
Pump PSI – The pump pressure Indicates the inlet pressure from the pump. This pressure will always be
approximately 200 PSI higher than the load sense pressure. This pressure will never exceed the main relief setting.
Load Sense PSI – The Load Sense PSI indicates the pressure communicated from the hydraulic load. With no
functions operating, the LS pressure should be 0 PSI. There will only be a LS pressure if a function is operating.
Boost / Differential Pressure – The boost or differential (pressure) is the difference between the Pump and the
Load Sense Pressures. Typical load sense hydraulic systems require a boost between 200 and 300 PSI. The boost
pressure is required to overcome the pressure drop across the valves. Using a gear pump, the boost pressure is
set using the boost pressure cartridge. Using a Piston Pump, the boost pressure is adjusted at the pump.
SOLENOID SHIFT SEQUENCE
Spinner TS3, SP2
Auger TS3, SP3
Plow Raise TS3, SP1
Plow Lower (DA)
TS3, SP6, TS2
Plow Lower (SA)
SP6
Plow Left
TS3, EHPR2
Plow Right TS3, EHPR1
Dump Raise TS3, SP2
Dump Lower (DA)
TS3, SP5, TS1
Dump Lower (SA)
SP5
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