Repair Kits Available By Part Number Section 2 Page - GAMECO
Repair Kits Available By Part Number Section 2 Page - GAMECO
Repair Kits Available By Part Number Section 2 Page - GAMECO
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WARNING: Installation, disassembly, repair and maintenance<br />
must be performed only by qualified personnel.<br />
All gas MUST be evacuated from the system before starting<br />
repairs.<br />
Installation, usage and maintenance of this product must<br />
be in compliance with all Engineered Controls International,<br />
Inc. instructions as well as requirements and provisions of<br />
NFPA #54, NFPA #58, DOT, ANSI, all applicable federal,<br />
state, provincial and local standards, codes, regulations<br />
and laws.<br />
Inspection and maintenance on a periodic basis is essential.<br />
Be sure all instructions are read and understood before<br />
installation, operation and maintenance. These instructions<br />
must be passed along to the end user of the product.<br />
CAUTION: Contact or inhalation of liquid propane, ammonia<br />
and their vapors can cause serious injury or death! NH3<br />
and LP-Gas must be released outdoors in air currents that<br />
will insure dispersion to prevent exposure to people and<br />
livestock. LP-Gas must be kept far enough from any open<br />
flame or other source of ignition to prevent fire or explosion!<br />
LP -Gas is heavier than air and may not disperse or evaporate<br />
rapidly if released in still air.<br />
Disassembly and <strong>Repair</strong> Procedure<br />
CAUTION: READ THROUGH ALL OF THESE INSTRUCTIONS,<br />
INCLUDING THE NOTICE AND WARNINGS ON THE BACK OF<br />
THIS SHEET, BEFORE BEGINNING ANY DISASSEMBLY OR<br />
REPAIR.<br />
NOTE: <strong>Repair</strong>s must be performed in a clean area. Hands,<br />
clothing, tools and work area must be completely free of oil,<br />
grease and foreign matter to prevent contamination of component<br />
parts and valves.<br />
A. Disassembly<br />
1. EVACUATE ALL GAS FROM THE SYSTEM BEFORE ANY<br />
DISASSEMBLY REPAIR. Open valve by lifting lever to<br />
vertical position to release any gas remaining in the system.<br />
2. Completely remove valve from line and clamp in vise.<br />
3. Move lever to horizontal (valve closed) position.<br />
4. Remove roll pin and lever and save for reassembly.<br />
7901T-80 <strong>Repair</strong> Kit for 7901<br />
Series Quick Acting Valves<br />
5. Using a 11 /16" wrench on hex section of bonnet assembly,<br />
remove by turning counterclockwise.<br />
6. Carefully remove seat retainer, stem assembly and spring<br />
from bottom of bonnet. Save spring for reassembly.<br />
7. Remove seat retainer from stem assembly. Discard seat<br />
retainer. Save stem for reassembly.<br />
9. Remove and discard gasket from body.<br />
10. Inspect inside of valve body. Clean if necessary.<br />
CAUTION: do not scratch or mar seat area.<br />
B. Reassembly<br />
1. Place new O-ring into grove of bonnet assembly.<br />
2. Place new seat retainer on stem.<br />
3. Reposition spring as shown in diagram.<br />
4. Carefully install new seat retainer and stem assembly through<br />
spring and bottom of bonnet.<br />
5. Inspect to insure washer has remained in position as shown<br />
in diagram.<br />
6. Replace lever in horizontal position. Align holes. Replace<br />
roll pin with small hammer. (Install slot of pin towards<br />
bonnet).<br />
7. Push lever to vertical (valve open) position.<br />
8. Place new gasket into grove in valve body as shown in<br />
diagram.<br />
9. Thread bonnet assembly into body by turning clockwise.<br />
Using a 11 /16" wrench, tighten to 1500 in/lbs. torque.<br />
10. Move lever to horizontal position (valve closed) position and<br />
replace valve in line.<br />
11. Pressurize line. Check valve for proper operation.<br />
12. Check all seal points for leaks by applying a suitable leak<br />
detection solution.<br />
Lever<br />
7901T-80<br />
Roll Pin<br />
Groove<br />
Washer<br />
Bonnet<br />
* Gasket<br />
* O-Ring<br />
Stem<br />
Spring<br />
* Seat Retainer Assembly<br />
Body