MTS Series 505G2 SilentFlo Hydraulic Power Unit Model 505G2-11 - Manual (Page 15)

Component Identification
Model 505G2.07/.11 SilentFlo™ HPU 15
Component Identification
Component Descriptions (part 1 of 2)
Item Component Description
1 Output Pressure Gage Displays the hydraulic pressure being output from the HPU.
2 Auto-Cooling Valve Keeps the hydraulic fluid clean and cool by circulating the fluid
through the return filter and the heat exchanger while the HPU is in
high pressure mode and the fluid demand by the external circuit is
very low.
3 Pressure Relief Valve Prevents the HPU from exceeding 22.4 MPa (3250 psi).
4 Fluid Sample Port Access port for obtaining hydraulic fluid samples from the HPU. A
quick disconnect port is provided. Use the optional sampling kit that
includes a needle valve to regulate the flow through the sample port.
5 Electrical Enclosure Houses the electrical and control components of the HPU. The main
power lines enter the unit at the top. The power disconnect switch
removes electrical power whenever the enclosure door is opened.
6 Low level/Overtemperature
Sensor Senses the hydraulic fluid level and temperature. Control interlocks
automatically shut the HPU down if the fluid level drops too low or
the hydraulic fluid temperature rises above the temperature sensor’s
setting.
7 Fluid Level Gage Displays the level of the hydraulic fluid.
8 Filler Cap Vents the hydraulic fluid reservoir. This is where you add hydraulic
fluid.