Ransburg Aerobell 33 AER5000, AER5001 - Manual (Page 38)

Aerbell 33 Rotary Atomizer - Maintenance
Ransburg
34 LN-9521-00.4
No Fluid Flow
(Continued)
Continuous Fluid
Flow
Uncontrollable Fluid
Flow
Fluid Leakage
Around Fluid Valve
Fluid Leakage
Around the Fluid
Regulator Cap
Fluid valve does not actuate
Clogged fluid tube
Fluid valve open
Fluid valve seat damaged or worn
Insufficient back pressure to fluid
regulator
Fluid regulator does not control flow
Damaged o-ring(s) on outer
diameter of valve body
Damaged or worn needle seals
inside valve assembly
Regulator cap is loose
Ruptured diaphragm
Pinched or cut o-ring between
lower support washer and
diaphragm
a. Verify that air pilot signal is present.
b. Fluid valve air pilot pressure is too low.
Increase air pressure to 70 psig minimum.
c. Replace fluid valve.
Remove and inspect fluid tube.
a. Remove air pilot signal.
b. If still open, replace fluid valve.
Replace fluid valve seat.
Replace fluid tube with the next smaller
inner diameter size.
Disassemble fluid regulator and inspect
for failed components.
Replace o-ring(s).
Replace valve assembly.
Disassemble, clean, and reassemble.
Tighten regulator cap hardware.
Replace diaphragm.
Replace o-ring.
Figure 15: Troubleshooting Guide (Continued)
TROUBLESHOOTING GUIDE
(Cont.)
General Problem Possible Cause Solution