Ransburg 19372 Service Manual page 38

If any such damage is found the resistor hous-
ing (Item 5) needs to be replaced. Contact an
authorized Ransburg representative to replace
the resistor housing if damaged.
† After two to four resistors failing, the
resistor housing may be permanently con-
taminated and require replacement.
5. Measure the resistance of the resistor (Item 2)
using a MegOhm meter with leads placed end to
end. The resistance should be between 550 to
500 MΩ. If the resistor is outside of this range,
it must be replaced.
6. Fill the inside diameter of a new resistor (Item
4) with dielectric grease. Hold the nozzle of
the grease tube to the hole on one end of the
resistor and slowly squeeze the grease into
the resistor until it protrudes from the opposite
end of resistor. Coat the outside surface of the
resistor lightly with the dielectric grease .
7. Insert the resistor (Item 4) into the front of the
resistor housing (Item 5) with the inked end
(black) of the resistor toward the front of the
barrel (Item 6).
8. At the front end of the barrel (Item 6) use a
screwdriver to hold the resistor (Item 4). At
the back of the barrel insert the washer (Item
7) and screw (Item 8) into the resistor housing
(Item 5). With a long screwdriver screw the
screw into the resistor.
C A U T I O N
!
† DO NOT OVERTIGHTEN the screw when
securing the resistor. The ceramic resistor
will be damaged.
AH-13-01.3
No. 2 Process Electric Motor Version - MAINTENANCE
NOTE
9. Place a new O-ring (Item 2) onto resistor seal
(Item 3). Apply a thin coating of petroleum jelly to
the O-ring and insert the resistor seal (side with
hole first) into the front end of resistor housing
(Item 5). Push the resistor seal (Item 3) into
resistor housing until it contacts the resistor
(Item 4). Insert the contact brush (Item 1).
10. Install cable assembly and motor assem-
bly onto the rear of the barrel. See "Cable
Assembly Replacement" procedures in the
"Maintenance" section.
Ground Resistor Replacement
(Refer to Figure 23)
1. Remove the cable/motor assembly per steps
1 and 2 of "Cable Assembly Replacement" in
the "Maintenance" section.
2
1
3
Figure 23: Ground Resistor Removal
GROUND RESISTOR REMOVAL
(Figure 23)
Item #
Spring
1
Ground Resistor 10,000 MΩ
2
Barrel
3
2. Tilt the Barrel (Item 3) so the rear opening
is down. The resistor (Item 1) and the spring
(Item 2) should fall out of the drive shaft.
3. Measure the resistance of the resistor (Item
2) using a MegOhm meter with leads placed
end to end. The resistance should be between
11,000 to 9,000 MW. If the resistor is outside
of this range, it must be replaced, or there is
a large hole in the center of the spray pattern.
Description
34