Ransburg RMA Indirect A11600 - Manual (Page 48)

W A R N I N G
>
Make sure that no solvent or other
contamination is allowed to enter the
motor assembly (air bearing and outer
shaft).
!
BELL CUP PREVENTIVE
MAINTENANCE
It is the user's responsibility to insure proper main-
tenance of the atomizer bell at all times. Bell cup
failure due to inadequate cleaning or handling will
not be covered under Warranty. The "DO NOT"
bullets (see "Operator/Maintenance
Warnings" in the "Maintenance" section) listed are
some examples of improper handling which could
adversely affect performance or personnel safety
and should not be attempted for any reason.
Bell Cup Handling
Always verify that high voltage is turned off and
the atomizer bell has stopped spinning before
performing any type of handling maintenance.
Bell Cup Replacement
Bell cup wear is dependent on many factors such
as bell speed, flow rate, and type of coating being
applied.
The bell cups shown in the following photos
indicates if a bell cup has some useable life or
should be replaced. Photo 1 shows a bell cup
that has some usable life. The grooves worn
around the splash plate pins are shallow. The
general appearance of the cup surface is smooth
and uninterupted. Photo 2 shows a bell cup that
needs to be replaced, as well as the splash plate
that was installed into the cup. The grooves are
deep, a visible groove exists at the outer edge
diameter of the splash plate and there are notice-
able lateral grooves extending towards the outer
edge of the cup.
• Recheck bell cup tightness. Torque to 50-70
lbs•in (5.65-7.91 Nm).
• Remove the rear shroud to expose the fluid
valve manifold assembly. Visually inspect for
signs of fluid leaks around fluid connections
and manifold. Correct problem and clean
paint from all components, including internal
portion of shroud.
• Reinstall rear shroud, bell cup, and front
shroud and replace cover on the outer hous-
ing (Refer to "Disassembly Procedures" in
the "Maintenance" section for definite instruc-
tions).
Photo 2
Photo 1
RMA-303 Indirect Charge - Maintenance
Ransburg
44 LN-9252-06.4