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Repair Kits Available By Part Number Section 2 Page - GAMECO

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WARNING: Installation, disassembly, repair and maintenance must<br />

be performed only by qualified personnel.<br />

All gas MUST be isolated from the connection before starting<br />

repairs.<br />

Installation, usage and maintenance of this product must be in<br />

compliance with all Engineered Controls International, Inc. instructions<br />

as well as requirements and provisions of NFPA #54, NFPA<br />

#58, DOT, ANSI, all applicable federal, state, provincial and local<br />

standards, codes, regulations and laws.<br />

Inspection and maintenance on a periodic basis is essential.<br />

Be sure all instructions are read and understood before installation,<br />

operation and maintenance. These instructions must be<br />

passed along to the end user of the product.<br />

CAUTION: Contact or inhalation of liquid propane, ammonia and<br />

their vapors can cause serious injury or death! NH3 and LP-Gas<br />

must be released outdoors in air currents that will insure dispersion<br />

to prevent exposure to people and livestock. LP-Gas must be kept<br />

far enough from any open flame or other source of ignition to<br />

prevent fire or explosion! LP-Gas is heavier than air and may not<br />

disperse or evaporate rapidly if released in still air.<br />

Disassembly and <strong>Repair</strong> Procedure<br />

CAUTION: READ THROUGH ALL OF THESE INSTRUCTIONS, IN-<br />

CLUDING THE NOTICE AND WARNINGS ON THE BACK OF THIS<br />

SHEET, BEFORE BEGINNING ANY DISASSEMBLY OR REPAIR.<br />

NOTE: <strong>Repair</strong>s must be performed in a clean area. Hands, clothing,<br />

tools and work area must be completely free of oil, grease and foreign<br />

matter to prevent contamination of component parts and valves.<br />

A. Disassembly<br />

Before beginning repair, examine the connector body for excessive<br />

wear or physical damage. The connector must be replaced if there is any<br />

doubt about its condition.<br />

1. Turn off source of gas to connector before beginning disassembly<br />

or repair. Insert 7141F into male connector to insure no gas is<br />

trapped between connector and service valve.<br />

2. Remove connector from system. Clamp connector in a vise by the<br />

hex with the 3 /8" female NPT threads facing up.<br />

3. Remove and discard the retaining ring with suitable pliers.<br />

4. Remove the washer, spring, and slip washer. Save for reassembly.<br />

NOTE: Inspect the spring to insure coils are not broken or bent.<br />

Replace if necessary with Spring <strong>Part</strong> <strong>Number</strong> 7141-1).<br />

7141M-50 <strong>Repair</strong> Kit<br />

For 7141M Connectors<br />

5. Remove and discard check assembly.<br />

6. Reposition connector in vise with the 1 1 /4" ACME threads facing up.<br />

CAUTION: Be careful not to score sealing surfaces.<br />

7. Remove and discard gasket and o-ring.<br />

8. Examine the inside of the body. Clean with a suitable solvent if<br />

required.<br />

B. Reassembly<br />

1. Carefully insert new o-ring into groove.<br />

CAUTION: Do not cut or damage the o-ring.<br />

2. Insert new gasket into slot.<br />

3. Reposition connector in vise with the 3 /8" female threads facing up.<br />

4. Insert new check assembly into body with four (4) guides pointing<br />

up.<br />

5. Insert slip washer into body. The smaller diameter side of the<br />

washer must slip inside the four (4) guides of check assembly<br />

(see diagram).<br />

6. Place spring into body. The spring should sit flat on top of slip<br />

washer.<br />

7. Place washer into body on top of spring.<br />

8. Compress washer and spring towards seat. Insert new retaining<br />

ring into body using suitable retaining ring pliers. Allow retaining ring<br />

to expand into groove below 3 /8" NPT thread.<br />

NOTE: Make sure retaining ring is properly inserted into the<br />

retaining groove and not caught in one of the NPT threads.<br />

9. Remove from vise.<br />

10. Depress check assembly from ACME thread side. Check for<br />

smooth opening and closing of valve.<br />

11. Apply 100 to 200 psi of air pressure to 3 /8" female threads. Check<br />

for any seat leakage.<br />

12. Mate a 7141F with the repaired 7141M. Assemble and disassemble<br />

the connectors several times with air pressure still applied. Check<br />

for proper opening and resealing of 7141M.<br />

7141M-4 Retaining Ring *<br />

7141M-5 Washer<br />

7141-1 Spring<br />

7141-15 Slip Washer<br />

7141M-6 Check Assembly *<br />

7513-25 O-Ring *<br />

7141M-3 Gasket *<br />

7141M Safety<br />

Check Connector<br />

* Included in the 7141M-50 <strong>Repair</strong> Kit.

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