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Reassembly
Clean all parts thoroughly before reassembling. Check
them carefully for damage or wear, replacing parts as
needed. For best results replace the original parts with
new parts in repair kits.
Prior to assembly, lubricate all seals and o-rings with
PARKER-O-LUBE or an equivalent lubricant.
1. Connect needle (8) and stop nut (2) to yoke (1).
2. Secure yoke (1) in soft jawed vise. Lock stop nut (2)
against yoke.
3. Insert needle (8) into packing nut (5).
4. Push three seal needles (6) in packing nut (5) using
soft rod or dowel. Orient as shown below
5. Install o-ring (4) on groove of packing nut (5).
6. Install guide (22) on needle (8).
7. Rewind spiral o-ring backup (21) on guide (22).
8. Install two o-rings (23) on guide (22).
9. Insert cartridge assembly in gun body (17) from rear
of gun.
10. Screw packing nut (5) into gun body (17).
11. Insert valve (20) through front of gun on needle (8).
12. Tighten nut (19) on needle (8).
13. Adjust screw (3) to tighten packings.
14. Install trigger (18). Align yoke (1) in gun body (17).
15. Press trigger pin (12) into gun body.
16. Secure trigger pins (12) using screws (11) and lock
washers (28).
17. Install spring (13) and spring retainer (15) into gun
body (17).
18. Adjust spring retainer to allow approximately 1/32 in.
of free play on trigger.
19. Tighten stop nut (14).
20. Install o-ring (10) on adapter (9).
21. With trigger retracted screw adapter (9) on gun body
(17).
22. While holding adapter (9) stationary, screw collar
(16) and nozzle into adapter. Do not over tighten
collar.
23. Reconnect flow gun to material supply line.
24. Turn on material supply line to gun.
25. Return flow gun to normal operating condition.
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