MTS Model 512-04 Hydraulic Power Unit User Manual
Page 28
Model 512.04 Hydraulic Power Unit
28
Maintenance
1.
Set the HPU’s output to HIGH PRESS. Put the HPU into a no-flow
condition (where no fluid is flowing to other hydraulic equipment).
2.
Wait for the fluid to reach the operating temperature of 64 and 68ºC
(147 and 155ºF).
3.
Hold the setscrew with a 5/32–inch hex key. Loosen the locknut with
a 9/16–inch wrench.
4.
Turn the setscrew while watching the gage until you get the output
pressure you want.
5.
Hold the setscrew and tighten down the locknut.
Locknut
Setscrew
Pressure Gage
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