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Troubleshooting
14 309475F
Troubleshooting
Relieve the pressure (page 13) before checking or repairing the equipment.
To repair the regulator, refer to page 15.
Problem Cause Solution
Drop in fluid outlet pressure. Ruptured diaphragm (17) (pneu-
matic regulators only).
Replace diaphragm.
Air escaping (pneumatic regulators
only).
Check air hose and connections.
Replace packings (13).
Worn packings. Replace packings (13).
Fluid outlet pressure increases to
level of fluid inlet pressure.
Valve ball (8) and seat (4) are worn or
stuck open.
Clean ball and seat. Replace worn or
damaged parts.
Fluid leaking from upper housing. Ruptured diaphragm (17) (pneu-
matic regulators only).
Replace diaphragm.
Worn packings. Replace packings (13).