Maintenance - Haskel AG Serie Betriebs- Und Wartungsanleitungen

Maintenance

Air Valve Section
Remove spool or sleeve in the following manner:
1. Remove air exhaust fitting located in cycling valve end cap. Pull out spool; inspect 568017 o-rings.
Relube; reinstall; retest before further disassembly.
2. If necessary, remove sleeve and bumper (rubber faced spacer at inside end of sleeve) with tool P/N
28584 as shown in figures 1, 2, and 3.
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 exhaust fitting.
Pilot System
1. Remove hex o-ring sealed plug.
2. Remove spring and 27375 pilot stem (figure 4).
3. Inspect pilot stem and seat for foreign material. Replace stem if shank is bent or scratched.
4. Replace stem if molded seat is damaged.
5. Apply 50866 lubricant and reassemble in the reverse manner.
Air Driven Gas Booster Compressor, 5-3/4" Drive AG Series • OM-3F
Figure 1: Insert tool in second row of holes in sleeve
and if necessary, pry out with screwdriver.
Figure 2: Pull straight out.
Figure 3: Insert bumper hook through center
of bumper and pull straight out.
4