Needle Replacement; Nozzle Replacement; Needle Packing Replacement - Graco SHARPE RAZOR A Serie Manual Del Usuario

Repair
See Parts, page 38, for callout references.

Needle Replacement

1. Remove fluid control valve (8), spring (29),
and needle (9). Inspect. Replace tip (9a)
or needle (9) as necessary. See page 2.
2. Insert needle (9), spring (29), and fluid
control valve (8).

Nozzle Replacement

1. Unscrew retaining ring (14) to remove air
cap assembly (13).
2. Trigger gun while unscrewing nozzle (11)
to prevent needle damage.
3. Check o-ring (21) and replace if necessary.
4. Trigger gun while replacing nozzle (11).
5. Insert air cap assembly (13) into gun.
6. Screw retaining ring (14) into place.
Air Control Valve Replacement
1. Remove air control valve assembly (5).
2. Insert replacement assembly (5) into gun.
Air Valve Replacement
1. Remove trigger nut (24), trigger pin (23),
wave washer (18), and trigger (10).
2. Remove fluid control valve (8), spring (29),
needle (9) and nut (7).
3. Remove spring (31) and push the air valve
assembly (6) out the back of the gun.
4. Inspect u-cup seals (22) and replace if
necessary.
5. Lubricate gun as described in
Maintenance, page 6.
312412B
6. Insert replacement air valve assembly (6).
Replace spring (31) and nut (7).
7. Replace trigger (10), wave washer (18),
trigger pin (23), trigger nut (24), needle (9),
spring (29), and fluid control valve (8).

Needle Packing Replacement

1. Remove trigger nut (24), trigger pin (23),
wave washer (18), and trigger (10).
2. Remove fluid control valve (8), spring (29),
and needle (9).
3. Unscrew nut (17) and remove u-cup (16)
and spreader (15).
4. Insert replacement spreader (15) facing
back of gun, u-cup (16) facing front of gun,
and nut (17).
5. Replace trigger (10), wave washer (18),
trigger pin (23), trigger nut (24), needle (9),
spring (29), and fluid control valve (8).
Repair
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