Ransburg Aerobell 168 Atex Approved 13350 - Manual (Page 46)

† Never wrap the applicator in plastic to
keep it clean. A surface charge may build up
on the plastic and discharge to the nearest
ground object. Efficiency of the applicator will
also be reduced and damage of failure of the
applicator components may occur. WRAP-
ING THE APPLIACTOR IN PLASTIC WILL
VOID WARRANTY.
Internal Fluid Path Purge
Cleaning and Load
Cleaning the incoming paint line (from paint supply
source such as color manifold through the fluid
manifold and bell assembly:
Open the dump valve and flush the incoming paint
line with solvent or an air/solvent chop. Make
sure the last step of the sequence is air to purge
the dump line of remaining solvent. To speed
the loading of the new paint, leave the dump line
open to allow the air in front of the paint push to
escape. The length of time the dump valve is
open depends on several factors such as viscosity,
paint pressure, etc. Timing should be such that
the dump is closed as the paint reaches the trigger
valve in the atomizer. Paint in the dump line may
cause high voltage issues.
External Atomizer Surface Cleaning
† Verify that the high voltage is turned off.
All external surfaces may be cleaned using a mild
solvent and lint free rags to hand wipe. Turbine
drive air must be off, but leave bearing air on. The
shaping air should have approximately 70 SLPM
air flow through each to prevent the solvent from
entering these passages.
† Do not spray the unit with a solvent applica-
tor used for cleaning. The cleaning fluid under
pressure may aid conductive materials to work
into hard to clean areas or may allow fluids to be
forced into the turbine assembly.
Do not reuse an atomizer bell cup that shows any
sign of damage such as nicks, heavy scratches,
dents, or excessive wear.
Always final wipe all parts with a non-polar solvent
and wipe dry (high flash Naphtha, etc.).
Bell Cup Cleaning
(Cup Wash) (Without Cleaning the
Incoming Paint Line)
Turn off the high voltage and trigger valve. With
the bell spinning at 30,000 rpm, turn on the exter-
nal solvent valve to allow cleaning solvent to flow
through the manifold passages, through the fluid
tube, and into the bell cup. The spinning bell will
atomize the solvent, clean out the bell passages.
It is always recommended to blow the solvent line
dry after the cleaning operation. Typical bell speed
during the cup flush sequence is 30,000 rpm.
W A R N I N G !
W A R N I N G !
† The high voltage must be turned OFF be-
fore entering the spray area and performing
any maintenance procedures. Spray booth
exhaust fan(s) should remain ON while
cleaning the equipment with solvents.
Aerobell 168 - Maintenance
Ransburg
LN-9247-13 43