Graco AirPro 289028, Инструкция и каталог запасных частей

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Repair
12 312578M
Repair
See Parts , page 14, for callout references.
Disassembly
1. Unscrew retaining ring (14) to remove air
cap (13b). Check o-rings (13a and 13c)
and replace if necessary.
2. Trigger gun while unscrewing nozzle (11)
to prevent needle damage.
3. Check o-ring (19) and replace if necessary.
4. Remove fluid control valve (8), spring (26),
needle (9), and nut (7). Inspect. Replace
tip (9c), needle (9), and u-cup seal (20) as
necessary. If replacing needle tip, use low
strength thread adhesive on needle tip
threads.
5. Remove spring (28) and push the air valve
assembly (6) out the back of the gun.
Inspect. Replace air valve assembly (6)
and u-cup seal (20) as necessary. Use
tool (33) to install u-cup seal.
6. Remove trigger nut (22), trigger pin (21),
wave washer (18), and trigger (10).
7. Unscrew needle packing nut (17) and
remove u-cup packing (16) and
spreader (15).
8. Remove air control valve assembly (5).
Inspect and replace as necessary.
9. Remove air inlet valve assembly (27).
Inspect and replace as necessary.
Follow Pressure Relief Procedure, page 7 .
Do not remove the fluid inlet fitting. It was
attached to the gun body with permanent
thread locker. There is also no need to
remove the air inlet fitting.