Repair Kits Available By Part Number Section 2 Page - GAMECO

1. Lubricate existing outer stem bearing, new stem O-ring and assemble
into seal gland.
2. Lubricate new dust seal and press fit into seal gland.
3. Lubricate and place the (3) new stem seals, new jam ring and new
stem washer into seal gland. Place new stem spring into seal gland.
4. Carefully thread the entire rebuilt seal gland assembly over stem and
into valve body.
CAUTION: Use special care in replacing seal gland assembly.
Excessive force could cut resilient parts.
5. Install the appropriate actuator onto valve.
Manual Actuator:
a. Install lever on stem and align holes.
b. Secure with cotter pin.
Pneumatic Actuator Installation:
NOTE: Lubricant compound 11550-215, or the equivalent,
should be applied in a light coating when specified. Torque
tolerance is +/- 10 lbs. Refer to Diagram 2 during assembly of
the pneumatic actuator.
a. Remove the clevis and clevis locknut from the air chamber shaft.
Remove cotter pin and pivot pin from the clevis.
b. Assemble the air chamber to the bracket using the air chamber
nuts and lock washers. Center the air chamber shaft in the
clearance hole of the bracket. Tighten air chamber nuts to 375
in/lbs.
c. Reassemble the clevis locknut and clevis to the air chamber
shaft. Adjust the clevis so that the center of the pivot pin hole is
2 3 /4" from the bracket with the pivot pin holes in the horizontal
plane. Lock the clevis in place with the clevis locknut using 200
in/lbs torque.
d. Mount the above bracket assembly to the valve face with the
bracket screws and lock washers. Be sure that the top of the
bracket is even with the upper edge of the valve face and
centered around the hex of the packing gland. Torque the
bracket screws to 60 in/lbs.
e. Assemble the crank arm onto the valve stem so that the crank
arm leg clears the clevis legs. Rotate the crank arm so the leg
positions itself between the legs of the clevis. Align cotter pin
holes and secure with the cotter pin. Spread and bend the ends
of the pin back onto the hub.
f. Assemble the two pivot pin washers onto the pivot pin. Lubricate
the pivot pin shaft and assemble through the holes of the clevis
legs and crank arm leg. The air chamber shaft can be displaced
manually along with movement of the crank arm to effect
alignment. Once the pivot pin is engaged, check to see that the
crank arm leg is at approximately 35 ° to the vertical. If bench
assembled, the cam should be horizontal, or slightly below
horizontal, and the clearance between the cam and the end of
the poppet should measure 3 /16" + /- 1 /64".
Should an adjustment be necessary, follow these procedures:
i) Remove the pivot pin and pivot pin washers.
ii) Rotate the crank arm counterclockwise until the leg clears the
clevis.
iii)Loosen the clevis locknut and adjust the clevis appropriately,
in or out. A half a turn of the clevis changes the angle
approximately 3 /4 degree, or the cam/poppet clearance by
.010".
iv)Reassemble the pivot pin and the pivot pin washers. Check
again for proper angle/clearance. Once correct, lock the
clevis in place with the clevis locknut.
v) Assemble the cotter pin into the pivot pin hole. Spread and
turn back the cotter pin legs around the pivot pin shaft.
Functional Testing
Connect a 50 to 60 psig air line through a pressure regulated valve to the
actuator.
Bench Testing
Slowly and alternately apply 0 to 35 psig air pressure to the actuator two
or three times while checking for binding and any interference. Make any
necessary adjustments so the actuator opens freely . Be sure the
actuator shaft bottoms out on the actuator housing at full stroke and not
within the valve.
Installed Testing
Same as the bench test, except a higher air pressure may be necessary
if tank pressure is present.
Diagram — 2
A3217F Internal Valve
Bracket Lockwashers (4)
Bracket Screws (4)
Air Chamber
Bracket
Clevis Cotter Pin
Valve Face
Packing Gland
Valve Stem
Air Chamber Nuts (2)
Air Chamber Lockwashers (2)
Nylon
Washer
Cotter Pin
Crank Arm
Pivot Pin Washer
Clevis
Locknut
Clevis
Pivot Pin