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Troubleshooting
3A0427B 9
Fluid flow will not shut off. Dirty needle (6) and seat (5). Remove and clean. Replace if worn
or damaged. See page 10.
Inlet air is not shut off. Shut off inlet air.
Seat retainer (7) is loose. Tighten.
Broken spring (13). Replace spring (13). See page 10.
Regulator is leaking fluid. Screws (17) are loose. Torque oppositely and alternately to
25 in-lb (2.8 N•m).
Ruptured fluid diaphragms (9a, 9b). Replace. See page 10.
Loose fluid fitting. Tighten.
Regulator is leaking air. Loose air fitting. Tighten.
Screws (17) are loose. Torque oppositely and alternately to
25 in-lb (2.8 N•m).
Ruptured air diaphragm (15). Replace. See page 10.
Problem Cause Solution