Ransburg MMA-570 Direct_Ind Charge Atomizer A13366 - Manual (Page 49)

O-RINGS
All O-rings in this atomizer are solvent proof
except those on the air bearing spindle. These
O-rings must not be soaked in solvent; if these
are exposed or soaked in solvent, they must
be replaced. These O-rings are engineered to
provide a fit between the air bearing spindle and
it’s mating parts to reduce or eliminate harmonic
resonance (vibration).
Some O-rings are encapsulated. These O-rings
have a limited amount of stretch and will not return
to their original diameters if over stretched. These
O-rings are subject to being distorted more easily
than rubber O-rings, so it is important that they
be sufficiently lubricated when mating parts are
installed onto them. They also will take a square
set over time and should be replaced periodically
if mating parts are removed repeatedly or if a new
mating part is installed onto them.
Any O-ring that is cracked, nicked, or distorted
must be replaced.
A suitable lubricant is food grade petroleum jelly
or A11545-00 Petrolatum Jell.
CLEANING PROCEDURES
In addition to the above Warning, which relates
to potential safety hazards, the following infor-
mation must be observed to prevent damage to
the equipment.
Internal Fluid Path Purge Cleaning
Cleaning the incoming paint line (from paint sup-
ply source such as color manifold through the
fluid manifold and bell assembly): Turn off the
high voltage and turn on the color stack trigger
valve for solvent supply. With the bell spinning,
flush cleaving solvent through the incoming paint
line and through the manifold passages, and out
through the dump valve. Use restricted bell wash
solvent to clean the fluid tube and bell cup. The
spinning bell will atomize the solvent and clean
out the bell passages. If desired, open the dump
valve to flush through the dump line for a faster
and contained system flush.
MAINTENANCE
W A R N I N G !
C A U T I O N !
† Electrical shock and fire hazards can exist
during maintenance. MicroPak supply must
be turned off before entering the spray area
and performing any maintenance procedures
on the atomizer. Spray booth fans should
remain on while cleaning with solvents.
† Never touch the atomizer bell while it
is spinning. The front edge of the bell can
easily cut into human skin or cut through
gloves and other materials. Be sure the
atomizer bell has stopped spinning be-
fore attempting to touch it. Approximate
time for the bell to stop spinning after turn-
ing off turbine drive air is three minutes.
† Ensure high voltage is off during any man-
ual cleaning procedure.
† DO NOT immerse the MMA-570 turbine in
solvent or other liquids. Turbine components
will be damaged and warranty will be voided.
† Bearing air must be on during all cleaning pro-
cedures to protect the air bearing components.
C A U T I O N !
† The maximum flow rate of 800 cc/min.
must not be exceeded during a flush routine.
Use of an in-line fluid restrictor is recom-
mended.
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 the
MMA-570 Direct/Indirect Charge - Maintenance
Ransburg
LN-9279-13 46