Repair
3A0232ZAA 33
7. For standard 1/4 in. mixers, use a 0.152 in. drill in
the diffuser assembly outlet to remove hardened
material.
For high flow 3/8 in. mixers, use a 0.161 in. drill.
8. For 1/4 in. mixers, use a 0.246 in. drill in the diffuser
assembly inlet to remove hardened material.
For 3/8 in. mixers, use a 0.359 in. drill.
9. Use a pick to remove any cured material from the
front air cap (808).
10. Install new mix element into diffuser (803).
11. Install new check valve seat (816) into diffuser. See
F
IG. 16 for seat orientation.
12. Install check valve (812) and new spring (813) into
the seat then install cap (806). See F
IG. 18 for orien-
tation of parts.
13. Remove and inspect o-ring (804). Replace if worn
or damaged.
14. Lubricate o-ring and install onto diffuser. Install dif-
fuser into head.
15. Torque cap to 23-27 in-lb (2.6-3.1 N•m).
16. Install diffuser into head (801).
17. Install air cap assembly and tighten retaining ring.
F
IG. 14
F
IG. 15
FIG. 16
NOTE: Parts shown are
not available on internal
mix, high flow front
heads
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