Ransburg Aerobell M Rotary Atomizer 78101 - Manual (Page 35)

LN-9237-00.1
Aerobell M Rotary Atomizer - Maintenance
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Figure 15: Troubleshooting Guide (Continued) Figure 15: Troubleshooting Guide (Continued) Figure 15: Troubleshooting Guide (Continued) Figure 15: Troubleshooting Guide (Continued) Figure 15: Troubleshooting Guide (Continued)
General Problem General Problem General Problem General Problem General Problem Possible Causes Possible Causes Possible Causes Possible Causes Possible Causes Corrective Action Corrective Action Corrective Action Corrective Action Corrective Action
No Fluid Flow
(Continued)
Continuous Fluid Flow
Uncontrollable Fluid
Flow
Fluid Leakage Around
Fluid Valve
Fluid Leakage Around
the Fluid Regulator
Cap
3. Fluid valve does not actu-
ate
4. Clogged fluid tube
1. Fluid valve open
2. Fluid valve seat damaged
or worn
1. Insufficient back pressure
to fluid regulator
2. Fluid regulator does not
control flow
1. Damaged o-ring(s) on outer
diameter of valve body
2. Damaged or worn needle
seals inside valve assem-
bly
1. Regulator cap is loose
2. Ruptured diaphragm
3. Pinched or cut o-ring
between lower support
washer and diaphragm
3a. 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.
4. Remove and inspect fluid tube.
1a. Remove air pilot signal.
b. If still open, replace fluid valve.
2. Replace fluid valve seat.
1. Replace fluid tube with the next smaller inner
diameter size.
2. Disassemble fluid regulator and inspect for
failed components.
1. Replace o-ring(s).
2. Replace valve assembly.
1. Disassemble, clean, and reassemble. Tighten
regulator cap hardware.
2. Replace diaphragm.
3. Replace o-ring.