MTS Series 505G2 SilentFlo Hydraulic Power Unit Model 505G2-180 - Manual (Page 20)

Description Component Item
Filters particles out of the hydraulic fluid as it is returned to the HPU. Filter 2
Produces the pressurized hydraulic fluid for system use. Each pump
assembly includes a motor, pump, and electrical enclosure for connecting
with the main starter. Pump Assemblies 3
Holds the hydraulic fluid and houses the pump and motor. Reservoir 4
Allows the HPU to be commoned with another HPU. Commoning Expansion
Plate 5
Sets the output pressure of each pump assembly. Output Pressure Controls 6
Vents the hydraulic fluid reservoir. This is where you add hydraulic fluid. Filler Cap 7
Indicates the reservoir hydraulic fluid level. Fluid Level Gage 8
Transducer senses the hydraulic fluid level and produces an analog signal
for display purposes. Switch controls an interlock that automatically shuts
the HPU down if the fluid level drops too low. Level Transducer/Switch 9
Transducer senses the hydraulic fluid temperature and produces an analog
signal for display purposes. Switch controls an interlock that automatically Temperature
Transducer/Switch 10
shuts the HPU down if the hydraulic fluid temperature rises above the
sensor’s setting.
Hazard placards contain specific safety information and are affixed directly
to the system so they are plainly visible. Each placard describes a Hazard placards 11
product-related hazard. When possible, international symbols (icons) are
used to graphically indicate the type of hazard and the placard label
indicates its severity.
Disconnects the incoming power from the HPU. The switch is a lockable,
mechanical latch. Power is removed whenever the door to the electrical Power Disconnect Switch 12
enclosure is open. The switch will not allow the door to be opened when
in the ON (|) position. Incoming power lines to the switch are live unless
power is removed externally.
Configures and controls the operation of the hydraulic power unit and
indicates the current status of several sensors. User Interface Panel 14
Houses the HPU’s electrical and control components. The wye-delta
starters for the HPUs are located in the electrical enclosure. The main Electrical Enclosure 15
power lines enter the electrical enclosure at its top. The power disconnect
switch removes electrical power whenever the enclosure’s door is opened.
20 Series 505G2 SilentFlo™ Hydraulic Power Unit Product Information
Introduction