Ransburg 19372 Service Manual page 35

5. Reverse the handle assembly so that the side
marked "X" is up (Reference Figure 21). Insert
trigger, making sure that the curved lower tip
of the trigger is pointed away from the handle
and the thrust washer is to the front of trigger.
6. Insert the roll pin through the hole and into the
trigger pivot hole.
7. With a small hammer, gently drive the roll pin
into the bottom tang, stopping when the roll pin is
about 2.3 mm (3/32") from the face of the tang.
Needle Assembly Replacement
1. Complete steps 1 through 4 of "Trigger Re-
placement" in the "Maintenance" section.
2. Remove the spring retainer with a 1/ 4-inch open
end wrench and slide the needle assembly out
of the handle. It is not necessary to remove
the two lock nuts and the thrust washer.
3. If the needle packing is to be replaced, refer to
"Needle Packing Replacement" in the "Mainte-
nance" section.
4. Insert new or rebuilt needle assembly into the
handle and with the 1/4-inch open end wrench
turn the spring retainer in about four turns.
5. Reinstall all removed parts per instructions in
the "Maintenance Section".
Needle Assembly Rebuild
1. Complete steps 1 through 3 of "Needle Assem-
bly Replacement" in the "Maintenance" section.
2. Remove lock nuts and thrust washer.
3. Unscrew spring retainer from spring housing
with a 1/4-inch open end wrench. Remove the
spring retainer from the spring housing.
4. Remove the spring, eyelet, and needle from
the spring housing.
5. Wash all parts in solvent and inspect all compo-
nents for damage and wear. Examine the needle
carefully and replace if worn, pitting, bent, or
broken. Replace any questionable parts.
6. Install snap ring onto needle. Slide eyelet, large
diameter first, onto threaded end of needle.
Install spring over threaded end of needle and
down over small diameter of eyelet.
AH-13-01.3
No. 2 Process Electric Motor Version - MAINTENANCE
Figure 20: Needle Assembly Diagram
NEEDLE ASSEMBLY
Item #
1
2
3
4
5
6
7
8
7. Insert needle, with previously installed compo-
nents, into spring housing (tapered end first).
Push needle into the spring housing until snap
ring bottoms out.
8. Install spring retainer, small threaded diameter
first, onto needle. Holding the spring housing in
one hand, compress spring until spring retainer
contacts the spring housing. While compressing
the spring, screw spring retainer into the spring
housing. Screw the spring retainer into the
spring housing until it bottoms.
9. To install the needle assembly, refer to steps 3
through 6 of "Needle Assembly Replacement"
in the "Maintenance" section.
1
2
3
4
(Figure 20)
Description
Housing, Spring
Needle, No.2 Hand Gun
External Retaining Ring
Eyelet, #5
Retainer, Spring
Nut, Lock
Washer, Plastic Thrust
Spring, Compression
8
5
6
7
6
31