SULLAIR Compressor 4500V

Return Line Strainer Maintenance

Refer to Discharge, Receiver and Piping System, 3000P, 3700 and 4500 on page 96

Replace the fluid filter element

Check maintenance gauge for red indication with compressor running full load

Is the maintenance gauge showing red?

Clean exterior of air filter housing

Rotate end cover counterclockwise and remove

Remove air filter element by pulling it out of the housing

Clean interior of housing using a damp cloth

Relieve all pressure from the receiver tank and all compressor lines

Loosen and remove the eight (8) hex head capscrews (M12 x 40mm) from the cover plate

Lift the cover plate from the receiver tank

Inspect the receiver tank for rust, dirt, etc.

Reinsert the separator element into the receiver tank taking care not to dent the element against the tank opening

Install a new lubricated O-ring in the O-ring groove on the underside of the receiver tank cover

Remove the filter canister using a wrench

Remove and dispose of filter element

Observe all laws and regulations for filter disposal

Apply a light film of fluid to the element seal

Install the element into the filter canister

Screw the canister to the filter head and tighten to 10 to 12 ft•lb (13.5 to 16.0 N·m)

Restart compressor and check for leaks

Order filter assembly No. 02250117-782

Disconnect the tube at bottom of sight glass

Unscrew the sight glass assembly where the elbow fitting joins the strainer/filter

Replace with new filter assembly