Ransburg No. 2 Process Handgun Electric Motor - Manual (Page 18)

No. 2 Process Electric Motor Version - Installation
Ransburg
14 AH-13-01.1
NO. 2 HANDGUN BRUSH
POSITIONING AND WEAR
(Refer to Figure 9)
When installing the electrical contact brush (3695-
00), it is important that it is properly positioned to
provide LIGHT CONTACT with the bell conductive
coating. Excessive contact pressure from the con-
tact brush will wear away the conductive coating
or the brush tip, causing poor electrical contact.
The small plastic pad at the tip of the brush arm
should lightly contact the black bell coating, not the
wire. The wire should never contact the coating.
The tip of the brush should not extend past the
edge of the bell cup or into the radius at the edge
(see Figure 9).
Figure 9-1: Un-Installed Brush Shape
Figure 9-2: Brush Contact Position
The brush should normally have a slight curve to
the arm. The more pressure applied the lesser
the curve (see Figure 4). The tip of the brush
assembly must be inspected prior to each use
for wear. When one-half (1/2) of the plastic tip
is worn away the brush assembly should be re-
placed (see Figure 10).
Figure 9-3: Brush and Feed Tube Positioning
Figure 9-4: Brush Contact Area