┌────────────────────┬─────────────────┬────────────────────────┐
│ Problem
│ Potential Cause │ Corrective Action
│
╞════════════════════╪═════════════════╪════════════════════════╡
│ 1. Adjust to a static │
│is outside of green │ regulator not
│
50psig.
│
│wedge (45-55psig). │ adjusted to
│
│
│
│ correct
│
│
│
│ pressure.
│
│
├────────────────────┼─────────────────┼────────────────────────┤
│
│ Malfunction in │ 2. Remove regulator
│
│
│ calibration
│
from system and
│
│
│ regulator.
│
rotate base of
│
│
│
│
regulator COUNTER- │
│
│
│
CLOCKWISE to expose │
│
│
diaphragm. Replace │
│
│
│
│
if cut or torn.
│
│
│
│
OR
│
│
│
├────────────────────────┤
│
│
│ 3. Adjust inlet
│
│
│
│
pressure with
│
│
│
│
another regulator to│
│
│
│
determine if source │
│
│
│
pressure gauge or
│
│
│
│
gauge or calibration│
│
│
│
regulator is at
│
│
│
OR
│
fault.
│
│
├─────────────────┼────────────────────────┤
│
│ Leak between
│ 4. Ensure tube is
│
│
│ inlet assembly │
secured from inlet │
│
│ and pressure
│
assembly to pressure│
│
│ gauge.
│
gauge. Apply liquid │
│
│
│
leak detector to
│
│
│
│
both ends of tube. │
│
│
│
Correct any
│
│
│
│
connection which
│
│
│
OR
│
bubbles.
│
│
├─────────────────┼────────────────────────┤
│
│ Malfunction in │ 5. Replace with new
│
│
│ source pressure │
gauge (P/N 501).
│
│
│ gauge.
│
│
└────────────────────┴─────────────────┴────────────────────────┘
Table 2-1. Source pressure gauge troubleshooting.
NOTE:
On earlier models, the adjusting screw is located on the back of the
manometer at the 12 o'clock position. To simplify calibration of the
pressure manometer, it is recommended it be updated with P/N 4407R.
MD0355
2-7