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Repair
312781E 11
Repair the Valves and Seats
(ProMix 2KS and ProMix 3KS
only)
Valve Seat Kit 24A861 is available. See page 15. Parts
included in the kit are marked with a symbol, for exam-
ple (16‡). For best results, use all parts included in the
kit.
See the Parts drawings on pages 14 and 16. Clean and
inspect all parts. Apply pipe sealant to all pipe threads
when reassembling.
1. Relieve pressure.
2. Disconnect the fluid line from the valve adapter (17).
3. Disconnect the air lines from the valve (19).
4. Unscrew the cap (C) to remove spring pressure on
the valve. See F
IG. 5.
NOTE: Another method of removing spring pres-
sure is by applying air to the ON port, to lift the valve
needle off the seat.
5. Remove the screws (20). Lift the adapter (17) and
valve (19) off the shutoff valve manifold (11 or 36).
6. Remove the seat (16) and o-rings (15).
7. Unscrew the valve (19) from the adapter (17).
Remove the o-ring (18).
NOTE: See manual 312782 to repair the valve (19).
8. Install the new seat (16‡) and o-rings (15‡).
9. Reinstall the adapter (17) and screws (20).
10. Before performing step 11, install the new o-ring
(18*) and screw the valve (19) securely into the
adapter (17).
11. Install the spring and valve cap (C). See manual
312782 to adjust the spring tension and needle
travel.
12. Reconnect the fluid and air lines.
F
IG. 5. Dispense Valve Cap
C
TI11581a
ON Port