User Manual

TROUBLESHOOTING GUIDE (Cont.)
General Problem
Possible Causes
Corrective Action
No Fluid Flow
(Cont.)
Continuous Fluid
Flow
Uncontrollable Fluid
Flow
Fluid and/or Air
Leakage Between
the Valve Module
and Mounting Man-
ifold
Fluid Leakage
Around Fluid Valve
4. Clogged uid tube
5. Plugged bell cup
6. Worn bell cup splash plate
1. Flud valve open
2. Fluid valve seat damaged
or worn (MCV type)
1. Insufcient back pressure
to uid regulator
2. Fluid regulator does not
control ow
1. Fittings loose
2. O-ring is missing
3. O-ring is damaged
1. Damaged o-ring(s) on
outer diameter of valve
body (MCV style)
2. Damaged or worn needle
seals inside valve assem-
bly.
3. Dirt or debris in valve
4. Remove and inspect uid tube.
5. disassemble and clean.
6. Check splash plate for worn or missing teeth.
Replace.
1. a. Remove air pilot signal.
b. If still open, replace uid valve.
2. Replace uid valve seat.
1. Replace uid tube with the next smaller inner
diameter size.
2. Disassemble uid regulator and inspect for
failed components.
1. Tighten or replace.
2. Install o-ring.
3. Visually inspect for damage and replace.
1. Replace o-ring(s).
2. Replace valve assembly.
3. Remove debris. If damage to seat exists, re-
place valve and/or seat.
(Continued On Next Page)
Aerobell - Maintenance
62
LN-9264-08.2
Ransburg