User's Manual

Repair

3A0232R 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

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.

IG. 14

IG. 15

ti17687a

Outlet

ti17688a

Inlet

FIG. 16

NOTE: Parts shown are

not available on internal

mix, high flow front

heads