ASSEMBLY PROCEDURES
(Refer to Figure 1)
1. Inspect Item 11 (regulating needle and seat) for
damage. If either of these items are damaged or the
mating surfaces are scratched, both items should be
replaced as a matching set.
2. Discard the following items and replace them with the
new item from the 73913-00 or 73913-01 repair kit:
Item 16 Screw
Item 10 O-Ring
Item 9 Upper Diaphragm
Item 14 Center Diaphragm
Item 8 Lower Diaphragm
3. Place Item 10 (o-ring) in the slot on Item 6 (lower
diaphragm retainer).
4. Place Item 8 (lower diaphragm) on Item 6 (lower
diaphragm retainer) with the side of the diaphragm
contacting the retainers (o-ring side).
5. Stack the following parts on Item 8 (lower diaphragm),
in the following order:
Item 7 (Center Diaphragm Retainer)
Item 18 (Bleed Spacer)
Item 14 (Center Diaphragm)
Item 5 (Upper Diaphragm Retainer)
Item 16 (Screw)
6. Ensure that clearance holes in Items 8 and 14
(diaphragms) and Item 17 (bleed spacer) are aligned
properly and tighten Item 16 (screw). Use adhesive 222
on screw threads. Set the diaphragm assembly aside.
7. Place Item 3 (lower housing) on table with bottom
threaded opening facing "UP".
8. Insert Item 10 (o-ring) onto Item 11 (regulating seat) and
then insert the assembly into Item 3 (lower housing).
The beveled side of the regulating seat must be "UP".
9. Place Item 11 (regulating needle) into Item 3 (lower
housing) with the ball end against Item 11 (regulating
seat).
10. Place Item 10 (o-ring) on Item 13 (retaining plug).
11. Place Item 12 (spring) into Item 3 (lower housing)
over Item 11 (regulating needle) and thread Item 13
(retaining plug) into Item 3 (lower housing). Tighten
Item 13 (retaining plug) to 25-30 lbs•ft, ensuring that
Item 11 (regulating needle) and Item 12 (spring) remain
in the center of Item 3 (lower housing).
12. Place Item 3 (lower housing) on table with bowl facing
"UP" and place diaphragm assembly (from step 4)
into bowl of Item 3 (lower housing), with pin of Item 6
(lower diaphragm retainer) facing "DOWN". Rotate the
diaphragm assembly so that the slot on Item 6 (lower
retainer) is 180
o
to the outlet port of Item 3 (lower
housing) for cleaner flushing of the regulator assembly.
NOTE
CAUTION
!
CAUTION
!
DO NOT
scratch the coating.
Apply a small amount of non-silicone lubricant to
Item 10 (o-ring) prior to assembly.
Verify regulator seat and needle have matching
serial numbers.
13. Place Item 2 (spacer ring) on the top of Item 14 (center
diaphragm) with largest opening facing "DOWN". Rotate
Item 2 (spacer ring), without rotating the diaphragm
assembly, so that the air pilot port of Item 2 (spacer
ring) is 45
o
to the outlet port of Item 3 (lower housing)
and all the clearance holes are aligned (see Figure 1).
14. Place Item 9 (upper diaphragm) on Item 2 (spacer ring)
and align holes.
15. Place Item 1 (cap) on Item 9 (upper diaphragm). Align
holes and insert Item 4 (8 screws).
LN-9223-00-R12 (04/2018)
14 / 22
www.carlisleft.com
MAINTENANCE
EN
