Ransburg Aerobell (Std.) Rotary Atomizer A12381 - Manual (Page 63)

TROUBLESHOOTING GUIDE
General Problem Possible Causes Corrective Action
Bad Spray Pattern
Low or No High
Voltage
1. Bell cup damaged
2. Low voltage
3. Bad fluid regulator
4. Paint lodged in shaping air
ring
5. Damaged shape air parts
6. Plugged holes in cup
1. High current draw
2. Solvent valve is actuated
3. a. Loss of low voltage
cable connection between
MicroPak and cascade
b. Loss of cable between
atomizer and Voltage
Master power supply
4. Improper limiting current
and voltage settings
5. Atomizer grounding out
(usually indicated by high
current draw or by Micro-
Pak over-current fault
light)
6. Faulty low voltage connec-
tions (usually indicated by
MicroPak feedback fault
light)
1. Replace bell cup.
2. See "Low or No High Voltage" below.
3. Repair or replace regulator in system.
4. Disassemble and clean.
5. Replace parts.
6. Disassemble and clean.
1. Paint resistivity to be .1 MΩ to ∞ (solvent-
borne direct charging).
2. Remove solvent valve air pilot signal (high
voltage must be interlocked with the sol-
vent valve air pilot signal to prevent solvent
flow while high voltage is energized).
3. Inspect connections.
4. To re-adjust settings, refer to "MicroPak
and Voltage Master 2" operating manuals.
5. a. Clean atomizer externally with non-polar
solvent.
b. Check the atomizer for internal fluid-
leaks.
c. Check for fluid leaks at quick-disconnect
mounting.
d. Check for arcing (usually indicated by
sparking sounds).
6. Check low voltage connection at MicroPak
and cascade.
(Continued On Next Page)
Aerobell - Maintenance
59 LN-9264-08.2
Ransburg