Graco ProMix 2KE Repair Parts page 29

Dosing Valve Manifold Rebuild
Order Kit 24H254 (see page 59) or Acid Kit 26A187 (see
page 61). Use all parts in the kit.
1. Follow Steps 1 - 5 in Remove Dosing Valve
Stacks, page 28.
2. Remove fitting (710) and o-ring (708).
3. Remove the dosing valve (705), then remove seat
(703) and o-rings (702 and 704) from each side of
each manifold (701, 706).
4. 3-Color Systems. Remove the spacer (707) and
o-rings (708 and 709) from between the two mani-
folds (706).
5. 3-Color Systems. Install new o-ring (708) on fitting
(710). Install fitting on bottom of 3-color manifold
(701).
NOTE: Relieve spring tension prior to installing the valve
(705) into the manifold (701 or 706).
6. Install the small o-ring (702), the seat retainer (703)
and the large o-ring (704) into the manifold, then
install the valve (705). Torque to 35-40 ft-lb (47-54
N•m). Repeat for each valve.
7. 3-Color Systems. Install new o-ring (708) on the
spacer (707). Install new o-ring (709) on the bottom
of the 1-color manifold (706). Align manifolds (701
and 706). Install four screws (711). Torque to 8-10
ft-lb (11-14 N•m).
8. Use four bolts (52) and washers (53) to reattach the
valve stacks (4, 108 if present).
9. Reconnect fluid lines. See F
10. Reconnect air lines. See System Pneumatic Sche-
matic, pages 64- 65. See also the Tubing Chart
and Diagrams, page 43 for pump-based systems or
page 51 for meter-based systems.
3A0870S
. 21, page 28.
IG
706
702
703
704
705
708
710
F . 23. Rebuild Dosing Valve Stacks
IG
Service
711
708
707
709
712
701
ti16302a
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