Ransburg RMA Direct A12867 - Manual (Page 68)

RMA-303 Direct Charge - Maintenance
65 LN-9266-11.3
14. It is recommended that extra bell cups be
purchased. The cups can then be cleaned
off line in an automated cup cleaner.
15. Reinstall cups to proper torque 50-70 lbs•in
(5.65-7.91 Nm).
CLEANING SHAPING AIR HOLES
In order to maintain uniform pattern control, the
shaping air holes of the inner ring and the
shaping air cap must be clean and free of any
blockage.
It is best to leave the shaping air supply ON
during normal production break cleaning peri-
ods. Shaping air can be reduced to 70 slpm
during this time. This will help stop material
from entering the passage ways.
Periodically (weekly) the outer shaping air cap
and the inner shaping air ring should be re-
moved and thoroughly cleaned. Use of an ul-
trasonic cleaner would make cleaning of hole
diameters easier. Inspect all holes for block-
age. Blow holes clear with compressed air
after some time of soaking in solvent. DO
NOT use any type of pick to clear the holes.
Damage may result to parts and could affect
performance of the equipment. If holes are
damaged (oversized holes, blockage, and
gauges) it must be replaced.