User guide

505.07/.11 HPU Hydraulic Schematic
Model 505.07/.11 SilentFlo™ HPU Introduction
17
505.07/.11 HPU Hydraulic Schematic
The hydraulic schematic shows the functional layout of the Series 505 Hydraulic
Power Unit.
PRDDWW
Water
Shutoff
Valve
Water
Regulator
Valve
Heat
Exchanger
Sight
Gage
Temperature
Gage
Pump Drain
Check Valve
0.007 MPa (1.0 psi)
Pump Drain
Check Valve
0.034 MPa (5.0 psi)
3 Micron
Filter
Reservoir
Pump
Motor
Surge
Suppressor
(optional)
Temperature
and Low Level
Sensor
Control Manifold
Pressure
Gage
Oil Sample
Port
Optional
Pressure
Port
Pressure
Filter
(optional)
Auto-cooling
Valve
(adjustable)
Check
Valve
Pressure
Relief Valve
(factory set at
22.4 MPa (3250 psi)
High Pressure
Solenoid Valve
Auto-cooling
Valve
(factory set)
Accumulator
0.06 inch Orifice
0.007 MPa (1.0 psi)