Airline Regulator, 3/8", 0-125 psi, 60 CFM, paint tank fluid pressure

Both are regulator faults, not tank faults:

• Air escaping from the port on the regulator cap means a broken or damaged diaphragm.
• Pressure creeping on the gauge means a dirty or worn valve seat that no longer closes fully.

Binks says erratic operation or loss of regulation is usually dirt in the valve area: remove the bottom plug, clean the seat and body with denatured alcohol, blow out with compressed air and check the O-rings. If cleaning does not cure it, or the unit leaks at the bottom plug, fit the KK-4977 repair kit, which covers both the HAR-507 and HAR-511 regulators used on Binks tanks. Release all system pressure before servicing.

The HAR-511 takes main-line air and delivers it at a lower regulated pressure. It has a 3/8″ NPT(F) inlet, two regulated outlets (one 1/4″ and one 3/8″ NPT(F)) and two unregulated 1/4″ outlets, so one body can feed a tank and a gun. Capacity is 60 CFM, regulated range 0–125 PSI, maximum inlet 150 PSI, maximum temperature 150°F.

Install it as close as possible to where the regulated air is needed, with flow in the direction of the arrow and the same pipe size as the line. The adjusting handle works in any position; clockwise raises pressure. It is for compressed air only, never for other gases. Repair kit: KK-4977.