Ransburg RMA Direct A12867 - Manual (Page 66)

RMA-303 Direct Charge - Maintenance
63 LN-9266-11.3
Bell Cup Handling
Always verify that high voltage is turned off
and the atomizer bell has stopped spinning
before performing any type of handling mainte-
nance.
Bell Cup Replacement
Bell cup wear is dependent on many factors
such as bell speed, flow rate, and type of coat-
ing being applied.
The bell cups shown in the photos indicates if
Photo 1
a bell cup has some useable life or should be
replaced. Photo 1 shows a bell cup that has
some useable life. The grooves worn around
the splash plate pins are shallow. The general
appearance of the cup surface is smooth and
uninterrupted. 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 noticeable lateral grooves extending
towards the outer edge of the cup.
Photo 2