Ransburg Aerobell (Std.) Rotary Atomizer A12381 - Manual (Page 53)

Figure 19: RPM-79 and RPM-80 Disassembly
(30mm)
Figure 20: RPM-79 and RPM-80 Assembly
(30mm)
Figure 18: RPM-79 and RPM-80 Assembly
(30mm)
RPM-452-1 Bell Cup Assembly
This bell cup requires a shaft plug for operation.
To assemble the shaft plug, install the small end
into the end of the turbine shaft until it bottoms
on the shaft. Install bell cup and tighten. There
will be a soft feel when tightening. This is normal.
The shaft plug is conforming to the inside of the
bell cup. Tighten to a final torque of 50-70 lbs•in
(5.65-7.91 Nm).
Shaft Plug Removal
The shaft plug may stay in the bell cup or in the
end of the shaft. Remove the shaft plug from the
shaft by gripping around the outer diameter with a
pair of pliers and twist outwardly. To remove from
inside the bell cup, use a pair of long nose pliers
and pull straight out. In any case, be careful not
to damage metal components of shaft or bell cup.
It is recommended that the shaft plug be replaced
if removed from the shaft or bell cup.
To reassemble, install the shaping air cap on to
the shaping air ring with the RMP-419 wrench
until the face of the shaping air cap is flush with
the shaping air ring. DO NOT OVERTIGHTEN!
Inspect parts at the front. The shaping air annulus
must be visually even all the way around the entire
part. Uneven annulus will cause the spray pattern
to be distorted.
Reinstall the assembly on to the shaping air
manifold. When tightening into place, it will become
tight after approximatly 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 be tightened down fully until it bottoms
against the RPM-3 shroud.
HOLD STEADY WHILE TIGHTENING
SHAPE AIR CAP WITH OTHER WRENCH
HOLD STEADY WHILE LOOSENING
SHAPE AIR CAP WITH OTHER WRENCH
PART TO BE FLUSH
WITH EACH OTHER
GAP ALLOWED
DO NOT OVER TIGHTEN!
Aerobell - Maintenance
49 LN-9264-08.2
Ransburg