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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 must be<br />

performed only by qualified personnel.<br />

All gas MUST be isolated from the system before starting repairs.<br />

Maintenance may be performed with the valve installed or with valve<br />

removed from the line. In either case, the gas supply must be isolated<br />

from the line by closing a separate shut-off valve.<br />

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

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

as requirements and provisions of NFPA #54, NFPA #58, DOT, ANSI, all<br />

applicable federal, 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 installation,<br />

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

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

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

vapors can cause serious injury or death! NH 3<br />

and LP-Gas must be<br />

released outdoors in air currents that will insure dispersion to prevent<br />

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

from any open flame or other source of ignition to prevent fire or<br />

explosion! 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, INCLUD-<br />

ING THE NOTICE AND WARNINGS ON THE BACK OF THIS SHEET,<br />

BEFORE BEGINNING ANY DISASSEMBLY OR REPAIR.<br />

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

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

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

A. Disassembly<br />

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

BLY OR REPAIR. Open handwheel as far as it will go to release any gas<br />

remaining in the system.<br />

CAUTION: Do not apply force after valve is fully open.<br />

2. Clamp the valve in a vise by the hex end section of the body.<br />

TA7509B-50 Assembly for<br />

TA7509BP and TA7510BP<br />

Shut-Off Valves<br />

3. Grip the hex section of the bonnet and turn clockwise until it can be<br />

removed from body. Use a 1 19 /32" wrench with a handle of sufficient<br />

length to develop at least 2400 in/lbs torque.<br />

CAUTION: Bonnet has left hand thread, indicated by notches on the<br />

hex edge.<br />

4. Remove body gasket and discard.<br />

TO INSTALL NEW SEAT DISC:<br />

5. Put the valve body aside and clamp the hex section of bonnet in the vise.<br />

6. While holding the top of the seat disc retainer with a wrench, use another<br />

wrench to remove the disc retaining nut. Save for reassembly.<br />

7. Remove and discard seat disc.<br />

8. Immerse new seat disc in water immediately prior to assembly.<br />

9. Install new seat disc (7509A-4T) by pressing into recess of seat disc<br />

retainer.<br />

10. Apply 1 /8" stripes of Loctite cement (5555LT) across threads in two<br />

places on opposite sides of the seat disc retainer.<br />

CAUTION: Do not allow Loctite to contact seat disc.<br />

11. Thread on disc retaining nut and tighten with a suitable wrench to 100<br />

to 125 in/lbs torque. Stake nut in two places at retainer threads (see<br />

drawing) to prevent loosening.<br />

NOTE: If no further repairs are required, disregard steps A-12 through A-17<br />

and B-1 through B-9 of the instructions, finish reassembly by following<br />

steps B-10 through B-15 only. TO INSTALL ALL OF THE TA7509B-50<br />

REPAIR PARTS, FOLLOW ALL OF THE REMAINING INSTRUCTIONS.<br />

12. Remove handwheel locknut by turning counterclockwise with a<br />

small wrench, to allow removal of washer, information disc, and<br />

handwheel. Save for reassembly.<br />

TA7510BP<br />

7513-13 Locknut<br />

7560-37 Washer<br />

A7515-27T Information Disc<br />

7509B-15 Handwheel<br />

7509B-14 Stem<br />

*7509B-25S O-Ring<br />

7509B-11 Seal Housing<br />

*7509B-42 Pressure Seal Rings (2)<br />

*7509B-9 Jam Ring<br />

*7509B-21 Washer<br />

*7509B-10T Gasket<br />

7509B-17 Spring<br />

7509B-2 Bonnet<br />

*7509B-8T Gasket<br />

TA7509BP<br />

Body<br />

A985B Plug (not shown)<br />

7509A-5T Seat Disc & Retainer Assy.<br />

** 5555LT Loctite Cement Kit<br />

** 5555GS-5 Lubricant<br />

** 5555PL Litharge Cement Kit<br />

Figure 2<br />

7509A-5T Seat Disc & Retainer<br />

Assy.<br />

Stake Here<br />

Seat Disc Retainer<br />

*7509A-4T Seat Disc<br />

Seat Disc Retaining Nut<br />

* These items form the TA7509B-50 assembly<br />

recommended for most repairs.<br />

** Must be ordered separately from Engineered<br />

Controls International, Inc.

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