Air Driven Air Amplifiers, AA-8, AA-15 & AA-30 • OM-15J
4
Maintenance
(refer to individual assembly drawing and figure 2)
Air Valve Section
Remove spool or sleeve in the following manner:
1. Remove air exhaust muffler and fitting located in the lower end cap. Pull out spool; inspect 568017 o-
rings on spool and 568015 o-ring inside exhaust fitting.
Relube; reinstall; retest before further
disassembly.
2. If necessary to remove sleeve and bumper (rubber faced spacer at inside end of sleeve) use tool P/N
28584 as shown-in photos 4 thru 6 or an L shaped hook bent from 1/8” diameter brass rod.
3. Replace any 568020 o-rings or the bumper - spacer if damaged, worn, or swollen.
4. Lubricate o-rings with light coat of Haskel 50866 lubricant.
5. Use lubricant liberally to hold bumper - spacer to sleeve with rubber side facing sleeve.
6. Push lubricated sleeve and bumper into end cap bore, all the way in one quick motion. (If bumper
drops off sleeve too soon, remove, regrease and repeat.)
7. Install
spool.
8. Replace fitting and muffler.
FIGURE 2
1. 28584 Tool and end cap assembly (cutaway).
2. Insert tool or small hook in first row of holes in spool.
3. Pull straight out. Inspect o-rings. (Do not proceed with steps 4, 5, 6 unless required).
