Manual

Replacing the Pressure Line Filter Element

Model 505.20 - 505.30 SilentFlo™ HPU Accessories

10. If you are changing the filter because the dirty filter indicator tripped, run

the HPU for two to four hours to remove contaminants. Then take a fluid

sample and have it analyzed.

Clean or change the fluid if it does not meet an ISO cleanliness level of 13/9

or better.

11. Press the Reset button on the HPU control panel to reset any interlocks and

turn off the Dirty Filter indicator.