4-15. Differential Pressure Gage (Cont).
Do not smoke or use open flame in vicinity of filter/separator.
Repair of differential pressure gage is limited to replacement
of the gage or tubes and fittings.
Disconnect lower fittings (1), remove tubes (2), and drain into suitable container.
Unscrew and remove lower elbows (3) from tank (4).
Inspect and clean tubes (2) for blockage and dirt.
Replace any damaged parts.
Coat threads of lower elbows with sealing compound (3) and screw into tank (4).
Attach tubes (2) to lower elbows (3) at lower fittings (1).