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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 released from line before starting 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! NH 3<br />

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 />

1. EVACUATE ALL GAS FROM THE SYSTEM BEFORE ANY<br />

DISASSEMBLY OR 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 it in a vise.<br />

3. Remove roll pin and lever assembly. Save for reassembly.<br />

7553T-80 <strong>Repair</strong> Kit for<br />

7553T and 7053T Series<br />

Quick-Acting Valves<br />

4. Using a 1 1 /4" wrench on hex section of bonnet assembly, turn<br />

counterclockwise. Remove from body.<br />

5. Remove stem and seat retainer by pulling assembly, out through<br />

bottom of bonnet.<br />

6. Remove seat retainer assembly from stem and discard. Save<br />

spring for reassembly.<br />

7. Remove back up ring and o-ring from stem and discard.<br />

8. Remove and discard gasket from body.<br />

CAUTION: Do not scratch or mar seat area.<br />

B. Reassembly<br />

1. Place new gasket into body.<br />

2. Place new back-up ring and new O-ring into grouve of stem.<br />

3. Place new seat retainer assembly onto stem.<br />

4. Replace spring. Replace entire stem, spring and seat retainer<br />

assembly into bonnet, through the bottom of bonnet. Be sure<br />

washer on top of bonnet is in place as shown.<br />

5. Replace lever asembly in horizontal position and secure by<br />

reinserting roll pin.<br />

6. Lift lever to vertical (open) position and thread entire bonnet<br />

assembly into body. Using a suitable 1 1 /4" wrench, tighten to<br />

1500 in/lbs torque.<br />

7. Move lever to horizontal (closed) position and replace valve in<br />

line.<br />

8. Pressurize line. Check valve for proper operation.<br />

9. Check all seal points for leaks by applying a suitable leak<br />

detection solution.<br />

Lever in<br />

Vertical Position<br />

7553T<br />

Lever in<br />

Horizontal Position<br />

Lever Assembly<br />

Roll Pin<br />

Washer<br />

Bonnet<br />

* Back-Up Ring<br />

* O-ring<br />

Stem<br />

* Gasket<br />

Spring<br />

* Seat Retainer Assembly<br />

Body

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