Ransburg Aerobell (Std.) Rotary Atomizer A12381 - Manual (Page 50)

Inspect Bell Cup Daily
Check for signs of damage such as nicks, heavy
scratches, dents, or excessive werar. Replace
the cup assembly with any of these conditions.
Atomizer Bell Cup Removal,
Disassembly, Cleaning, and Reas-
sembly
• Remove the shaping air cap by unscrewing
counter-clockwise. Use an RPM-419 wrench
to aid in removal.
• To remove atomizer bell, place RPM-419
(wrench) over flats of shaft to lock shaft.
Unscrew atomizer bell by hand turning
counter-clockwise.
• If the atomizer is tight and can’t be removed
by hand, use the second RPM-419 ( wrench)
to place over the wrench flats of the atomizer
bell.
If the splash plate of the atomizer bell cup needs
to be removed, do not use a hex key with a
ball end. This will cause the head to strip or
"round-out" prematurely. Use a 1/16" hex key
with a squared-off end for best results. Before
removing the three (3) flat head screws, make
sure the sunken hex of the screws are cleaned
out to full depth. Push the splash plate off its
seat from behind using a plastic bolt to prevent
damage to the plate. Once the screws are
removed, they must be discarded and replaced
by new ones. When reassembling, tighten
screws to 2-4 lbs•in torque (0.23-0.45 Nm).
DISASSEMBLY
PROCEDURES
>
Mean time to repair entire assembly is
60 minutes.
NOTE
Inspect the splash plate, screws, and bell
cup for wear. Check splash plate teeth for wear.
If teeth are missing or severely undercut,
replace splash plate and screws (see Figure 10).
Pay special attention to the center four holes
in the splash plate. Look for erosion between
the holes. Replace any part if necessary.
Figure 10: Worn Splash Plate Teeth
• Before reassembling the atomizer bell, ensure
the tapers of the shaft and bell which mate are
totally clean, as well as the shaft and bell
threads.
• Place RPM-419 (wrench) over wrench flats of
shaft to lock the shaft.
• Screw atomizer bell onto shaft in clockwise
direction. Torque 50-70 lbs•in (5.65-7.91 Nm)
• Reinstall shaping air cap into shroud. Note when
screwing RPM-4 in place, it will become tight
after approximately 2 1/2 turns. At this point,
use the RPM-419 (wrench) to tighten further.
The RPM-4 will break free and become loose
again and can then be tightened down fully until
it bottoms against the shroud.
Aerobell - Maintenance
46 LN-9264-08.2
Ransburg