MTS Series 505 SilentFlo Hydraulic Power Unit Model 505-11 - Manual (Page 69)

Surge Suppressor Kit
Model 505.07/.11 SilentFlo™ HPU Accessories 69
To replace the filter:
1. Ensure that system hydraulic pressure has been reduced to zero before
proceeding. To do this, turn off the hydraulic power unit and exercise the
actuator until it stops moving.
2. Unscrew the filter bowl and remove the filter element.
3. Lift the filter element out of the filter bowl. Be careful to catch any
hydraulic fluid dripping from the filter element with a rag or drip pan.
4. Insert the replacement filter into the filter assembly.
5. Screw the filter bowl back onto the filter assembly. Torque the filter bowl to
27.1 N•m (20 lbf-ft).
6. Press the Reset button on the HPU control panel to reset any interlocks and
turn off the Dirty Filter indicator.
Surge Suppressor Kit
The surge suppressor kit smooths out the ripple caused by the pulsing action of
the pump as it pressurizes the hydraulic fluid. The surge suppressor is a cylinder
that has an outer sleeve that is pressurized with nitrogen. The gas pressurized
sleeve dampens the pressure pulses.
The surge suppressor is mounted to the output of the hydraulic pump inside the
reservoir.
Optional Remote Charging Kit
consists of adapter, hose,
charging valve, and bulkhead
fitting that allows you to mount
the charging valve above the
fluid level for easier access
Fluid Level