MTS Series 505 SilentFlo Hydraulic Power Unit Model 505-180 - Manual (Page 62)

Model 505.60 - 505.180 SilentFlo™ HPU 62
Precharging the Optional Surge Suppressor
Installation
6. Slowly open the regulator shut-off valve until gas is heard escaping from the
accumulator charging kit bleed valve. Allow gas to slowly escape for
approximately ten seconds, and then close the bleed valve. Immediately
close the regulator shut-off valve before the pressure reading on either the
high or low charging kit pressure gage exceeds the pressure level of the
accumulator.
7. Open the locknut. Slowly open the regulator shut-off valve until the pressure
indicator on either the high or low charging kit pressure gage begins to rise.
When the pressure is at the required pressure level, close the regulator shut-
off valve.
8. Close the locknut.
9. Open the bleed valve on the charging kit and remove the chuck valve from
the accumulator.
10. Install the valve stem cap and protective cover. Close the valve on the
nitrogen bottle.