MAINTENANCE
EN
AH-13-01-R8 (09/2022)
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General Problem
Possible Cause
Solution
TROUBLESHOOTING GUIDE
(Cont.)
(Continued On Next Page)
Hose fittings not tight
Hose broken or worn
Needle packing worn
O-ring worn or missing
Paint bushing missing
Bell probe electrically dead
Spring missing in back of bell
Spring not contacting end of shaft
Ground resistor damaged or
not contacting
Spring in ground resistor missing
or not contacting
Contaminated hub leaking high
voltage to the probe
Target parts not properly grounded
to earth ground
Bell outer coating damaged
Paint too conductive
Low short circuit current
Atomizing voltage too low
Fluid hose fittings are all Left Handed threads.
Insure each connection is properly secured.
Order replacement or remove fitting, cut off
defective area and replace fitting.
Adjust packing nut or rebuild handle and
replace packing.
Replace O-ring
Insure paint busing is properly installed.
Replace.
Replace.
Clean or replace.
See “Ground Resistor Test and Replacement” in
“Maintenance” section.
Replace.
Clean or replace hub assembly.
Strip workholders and ground wires of built
up paint to ensure proper ground correction.
Replace bell.
See “solvent Selection”.
Perform SCI tests.
Perform tests: See “Electrical Testing”.
Paint Drips
From Paint Hose
Connection or
Rear of Applicator
Poor Atomization
(See First “Mechanical
Troubleshooting”)
Poor Attraction
Large Hole in
the Center of
the Pattern
Paint Leaks
From Barrel and
Handle Assembly
Connections
Paint Leaks from
Inside Hand
Grip or trigger
Mechanism
MECHANICAL
ELECTRICAL