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Repair
312579K 15
Reassembly
1. Install air control valve assembly (5) with
valve turned fully counterclockwise to outer-
most position. Torque to 85-90 in-lb
(9.6-10.2 N•m).
2. Install air inlet valve assembly (27) with
valve turned fully counterclockwise to outer-
most position. Torque to 205-215 in-lb
(23.2-24.3 N•m).
3. Lubricate u-cup spreader (15) and u-cup
packing (16). Install spreader (15) with
tapered end facing rear of gun. Install u-cup
packing (16) with open end facing front of
gun. Install packing nut (17). Torque to
3 in-lb (0.3 N•m).
4. Install wave washer (18) with cupped side
toward the gun body. Lubricate and apply
thread retainer to trigger pin (10). Install trig-
ger (10), trigger pin (21), and trigger
nut (22). Torque to 15-20 in-lb
(1.7-2.2 N•m).
5. Install air valve assembly (6), spring (28),
and nut (7). Torque to 175-185 in-lb
(19.8-20.9 N•m).
6. Install needle (9) and spring (26). Lightly
lubricate and install fluid control valve (8).
7. Trigger gun while replacing nozzle (11).
Torque to 155-165 in-lb (17.5-18.6 N•m).
8. Install air cap assembly (13) and retaining
ring (14).
15
16
17
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