Cashco 31-B - Manual (Page 9)

IOM-31-B 9
SECTION VII
Possible Cause Remedy
A. Diaphragm failure. A. Replace diaphragm.
B. Body gasket failure. B1. Replace body gasket.
VII. TROUBLE SHOOTING GUIDE
Possible Cause Remedy
A. Oversized regulator. A1.
A2.
Check actual fl ow conditions; consider use of smaller
orifi ce.
Reduce P
1
pressure if possible.
B. Inadequate rangeability. B1.
B2.
Check actual fl ow conditions; consider use of larger
orifi ce.
Increase P
1
pressure if possible.
C. High Inlet P
1
pressure. C. Reduce P
1
pressure to 60 psig (4.14 Barg) or lower.
D. Loading ring is “loose”. D. Replace loading ring.
E. Dirty service gas; unit becomes unresponsive. E1.
E2. Clean gas stream with liquid separators, strainers, etc.
Disassemble and clean buildup on a routine basis.
1. Erratic Operation..
2. External leakage.
Possible Cause Remedy
A. Closing cap removed. A. Reinstall gasketed closing cap.
B. Plug vent. B. Clean vent opening in spring chamber.
3. Unstable Operation.