Air Controls - Graco XM Series Repair Parts

Repair

Air Controls

Remove Air Control Assembly
1. Remove shroud. See Remove Shroud, page 30.
2. Disconnect air motor air lines and system air line.
3. Remove four nuts (7) from front of air control
bracket (301). See XM Plural-Component
Sprayers Common Parts on page 74.
4. Pull out assembly.
5. Follow steps in reverse order to reinstall air control
assembly.
Replace Solvent Pump Ball Valve
1. Remove shroud. See Remove Shroud, page 30.
2. Disconnect air motor air lines and system air line.
3. Remove four nuts (7) from front of air control
bracket (301).
4. Pull out assembly.
5. Remove two screws (329) from front of air control
bracket (301).
6. Disconnect air line (333) running to ball valve
assembly (328).
7. Replace with new ball valve assembly. See Air
Controls Module (26C688) Parts, page 86.
8. Follow steps in reverse order to reassemble.
Replace Solvent Air Regulator
1. Remove shroud. See Remove Shroud, page 30.
2. Disconnect air motor air lines and system air line.
3. Remove four nuts (7) from front of air control
bracket (301).
4. Pull out assembly.
5. Remove regulator nut (331), and disconnect air
lines (327, 333) running to regulator (322).
6. Remove regulator assembly and replace with new.
See Air Controls Module (26C688) Parts, page
86.
7. Follow steps in reverse order to reassemble.
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Replace System Air Regulator
1. Remove shroud. See Remove Shroud, page 30.
2. Disconnect air motor air lines and system air line.
3. Remove four nuts (7) from front of air control
bracket (301).
4. Pull out assembly.
5. Remove regulator nut (326) and disconnect system
air line.
6. Remove the T-handle on ball valve (337).
7. Remove four nuts (320) from the back of the air
controls to remove the air control assembly.
8. Remove regulator assembly (345) from manifold
(303, 305) and replace. See Air Controls Module
(26C688) Parts, page 86.
9. Follow steps in reverse order to reassemble.
Replace Solenoid Inlet Air Regulator
1. Remove shroud. See Remove Shroud, page 30.
2. Disconnect air motor air lines and system air line.
3. Remove four nuts (7) from front of air control
bracket (301).
4. Pull out assembly.
5. Disconnect air line.
6. Remove the T-handle on ball valve (337).
7. Remove four nuts (320) from the back of the air
controls to remove the air control assembly.
8. Remove regulator assembly (309) from swivel union
(304) and replace with new. See Air Controls
Module (26C688) Parts, page 86.
9. Follow steps in reverse order to reassemble.
10. Set new air pressure regulator to 80-85
psi.(0.55-0.58 MPa, 5.5-5.8 bar).
313289W