OPERATION
EN
AH-13-01-R8 (09/2022)
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NOTE
NOTE
WARNING
!
WARNING
!
COLOR CHANGE
If the gun is to be flushed with solvent between colors (as
when switching between two incompatible colors or paints),
turn ALL electrical power OFF and carefully follow the gun
cleaning and color change procedures as outlined in the
following steps.
1. Turn the gun motor to the “OFF” position by moving the
“ON - OFF” to “OFF” position. Release the paint pressure
at the pressure regulator and mount the gun on its stand.
2. Regulate the pressure to normal operating setting (or
high for faster cleaning) and use one or two quarts of
any suitable cleaning solvent that is compatible with the
paint being used.
3. Remove the gun from its stand and be sure that the
electric power is turned OFF. Position the feed tube and
the contact brush upward and remove the bell from the
gun by following the steps outlined under “Shutdown” in
the “Operation” section.
BEFORE attempting any cleaning or color
change procedures, the high voltage and the AC
power to the power supply MUST be turned OFF!
If your equipment has an individual pressurized
container and hose for each paint and solvent, or indi-
vidual hoses for use with a pump, disconnect the gun.
When one pressure pot and a single hose is used,
replace the paint container with a solvent container.
If the hose is used with a pump, remove the pump
pick-up tube from the paint and place it in a solvent-filled
container.
Paints and solvents MUST ONLY be flushed
into earth grounded metal safety containers.
4. Reposition the feed tube to the five o’clock position and
trigger the gun into a grounded container until there is no
evidence of paint in the stream.
5. Release the trigger and remove the feed tube. Wipe the
feed tube thoroughly. Pull trigger to flush material trapped
by feed tube o-ring.
6. Release the trigger, replace the gun on the stand, and
release the fluid pressure. Reinstall the feed tube. Feed
tube o-ring may swell from solvent and need regular
replacement.
7. Connect the gun to the new paint supply, set for normal
operation, and apply pressure.
8. Trigger the gun for a few seconds to remove all of the
solvent from it and the hose (until paint flows from feed
tube). Replace the bell and reposition the feed tube and
the contact brush.
9. Turn the gun motor and high voltage switch ON and
resume normal operation.
Keep the barrel of the applicator angled downward
until the solvent is completely drained out of it.
GUN ELECTRICAL OUTPUT
Because the high voltage output of the No. 2 handgun af-
fects the coating material atomization and the efficiency of
the application, it is important to ensure that the electrical
portion of the system is operating correctly. This can be
accomplished by performing a Short Circuit Current Test
(SCI). The normal SCI reading should be between 80 to
115 microamperes (.08 to .115 milliamperes). See “Gun
Output Test” in the “Maintenance” section.
Power Supply Microampmeter
The power supply, used with the 19372 –AAU No. 2 Hand-
gun, is equipped with a microampmeter, that can be used to
indicate the total collective current demand for the system
(i.e., power supply, handgun, fluid line, and paint and target
distance). Under normal operating conditions the meter