Y600A Series
5
6. Install the lever assembly (key 16) into the stem
(key 14) and secure the lever assembly with the
machine screws (key 17).
7. For a Type Y600A or Y600AM (Figures 3 and 4),
hold the pusher post (key 8) and place diaphragm
assembly parts on the pusher post in the following
order: diaphragm (key 10), diaphragm head (key 7),
lower spring seat (key 50), and washer (key 36),
and secure with diaphragm cap screw (key 38)
using 7 to 9 foot-pounds (9 to 12 N•m) of torque or
for a Type Y600AR (Figure 6), secure the pusher
post (key 8) to the relief valve spring holder with
1 to 3 foot-pounds (1,4 to 4,1 N•m) of torque.
8. Install the pusher post (key 8) and attached parts
onto the lever (key 16).
9. Install the control spring (key 6) and spring case
(key 3) on the diaphragm casing (key 4) so that the
vent assembly (key 26) is correctly oriented, and
secure them with the cap screws (key 24) and hex
nuts (key 23) to nger tightness only.
10. Turn the adjusting screw (key 35) clockwise until
there is enough control spring (key 6) force to
provide proper slack to the diaphragm (key 10).
Using a crisscross pattern, nish tightening the cap
screws (key 24) and hex nuts to 5 to 6 foot-pounds
(6,8 to 8,1 N•m) of torque. Finish turning the
adjusting screw to the desired outlet pressure setting.
11. Install the closing cap (key 22) or the Type 662
remote control drive unit, if used.
To Convert Constructions
The Type Y600A to the Type Y600AM:
New parts required: keys 30, 31, and 33
1. Remove pipe plug (key 27) from the diaphragm
casing (key 4).
2. Refer to steps 1 and 5 in the Body Area Maintenance
section to remove the four machine screws (key 33)
and pitot tube (key 32, Figure 3).
3. Insert the throat O-ring (key 31, Figure 4) and one
machine screw (key 33, Figure 4).
4. Insert the stem O-ring (key 30, Figure 4) by following
steps 1 through 6 in the Diaphragm and Spring Case
Area Maintenance section.
The Type Y600AM to the Type Y600A:
New parts required: keys 27, 32, and 33
1. Insert pipe plug (key 27, Figure 4) in the diaphragm
casing (key 4).
2. Follow steps 1 through 4 in the Diaphragm and
Spring Case Area Maintenance section to remove
one machine screw (key 33, Figure 3), the stem
seal O-ring (key 30, Figure 4), and the throat seal
(key 31, Figure 4) blocking the registration port.
3. Insert pitot tube (key 32) and four machine screws
(key 33) as outlined in step 5 of the Body Area
Maintenance section.
Parts Ordering
When corresponding with your local Sales Ofce about
this regulator, include the type number and all other
pertinent information stamped on the closing cap.
Specify the eleven-character part number when ordering
new parts from the following parts list.
Parts List (Figures 3 through 6)
Key Description Part Number
Parts Kit (keys 10, 11, 12, 13, 15, 30, and 31)
Types Y600A and Y600AM RY600AX0012
Type Y600AR RY600ARX012
1 Body, Cast iron
3/4 x 3/4-inch 1E987119012
1 x 1-inch 1E987319012
2 Cap Screw (2 required), Plated steel 1C856228992
3 Spring Case Assembly, Cast iron 1B6365X0342
4 Diaphragm Casing, Cast iron 47B2271X012
5 Orice, Aluminum
1/8-inch (3,18 mm) 1A936709012
3/16-inch (4,76 mm) 00991209012
1/4-inch (6,35 mm) 0B042009012
3/8-inch (9,53 mm) 0B042209012
1/2-inch (12,7 mm) 1A928809012
9/16-inch (14,3 mm) 1C4252X0012
6 Spring, Plated steel
4 to 8-inches w.c. (10 to 20 mbar) 1B653827052
7 to 16-inches w.c. (17 to 40 mbar) 1B653927022
15-inches w.c. to 1.2 psig (37 to 83 mbar) 1B537027052
1.2 to 2.5 psig (0,08 to 0,17 bar) 1B537127022
2.5 to 4.5 psig (0,17 to 0,31 bar) 1B537227022
4.5 to 7 psig (0,31 to 0,48 bar) 1B537327052
7 Diaphragm Head
Types Y600A and Y600AM, 304 Stainless steel 17B9723X032
Type Y600AR, Plated steel 1B541425072
8 Pusher Post
Types Y600A and Y600AM, Aluminum 17B9734X032
Type Y600AR, Zinc 2B541944012
10* Diaphragm, Nitrile (NBR)
Types Y600A and Y600AM 17B9726X012
Type Y600AR 1C942902072
11* Body Seal O-ring, Nitrile (NBR) 1H993806992
12* Insert Seal O-ring, Nitrile (NBR) 1B885506992
13* Disk Assembly, Aluminum Disk Holder
with Nitrile (NBR) disk 1C4248X0212
14 Stem, Stainless Steel 17B3423X012
15* Cotter Pin, Stainless steel 1A866537022
* Recommended spare part.
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