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 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,<br />
NFPA #58, DOT, ANSI, all applicable federal, state, provincial and<br />
local 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<br />
be kept far enough from any open flame or other source of ignition<br />
to prevent fire or explosion! LP -Gas is heavier than air and may<br />
not 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 DIS-<br />
ASSEMBLY OR REPAIR. Turn handwheel counterclockwise as far<br />
as it will go to release any gas remaining in the container.<br />
CAUTION: Do not apply force after valve is fully open.<br />
2. Using a 15 /16" wrench with a handle of sufficient length to develop<br />
1250 in/lbs. torque, remove four nuts from the bonnet by turning<br />
counterclockwise and lift bonnet away from the valve body.<br />
3. Remove body gasket and discard.<br />
To Install New Seat Disc:<br />
4. Clamp the square section of bonnet in a vise.<br />
TA7515A-50 Assembly for<br />
TA7515AP, TA7516AP, TA7517AP,<br />
TA7517FP, TA7518AP and<br />
TA7518FP Shut-Off Valves<br />
5. While holding the hex section of the seat disc retainer with a wrench,<br />
use another wrench to remove the jam nut.<br />
6. Remove seat disc retainer washer and save for reassembly, take out<br />
and discard seat disc.<br />
7. Press new seat disc (A7515-4T) into recess of seat disc retainer.<br />
8. Place seat disc washer over threaded portion of seat disc retainer.<br />
9. Apply Loctite cement (5555LT271) to the first three threads of<br />
retainer.<br />
CAUTION: Do not allow Loctite to contact seat disc.<br />
10. Thread on jam nut and tighten with a wrench to 350 to 400 in/lbs.<br />
torque so that seat disc forms a gas tight seal.<br />
11. Stake nut in two places at retainer thread to prevent loosening (see<br />
figure 2).<br />
NOTE: If no further repairs are required, disregard steps A-12 through<br />
A-17 and B-1 through B-9 of the instructions. Finish reassembly by<br />
following steps B-10 through b-14 only. TO INSTALL ALL OF THE<br />
TA7515A-50 REPAIR PARTS FOLLOW ALL OF THE REMAINING<br />
INSTRUCTIONS.<br />
12. Remove handwheel locknut by turning counterclockwise with<br />
a small wrench to allow removal of washer, information disc<br />
and handwheel.<br />
13. Using a 1 5 /8" wrench with a handle of sufficient length to develop at<br />
least 2000 in/lbs. torque, turn seal housing counterclockwise and<br />
carefully remove from bonnet.<br />
CAUTION: Do not mar finish of stem.<br />
14. Remove and discard pressure seal rings and O-ring from seal<br />
housing. Clean old cement residue from seal housing threads with<br />
a wire brush and make sure interior is free of dirt and foreign particles.<br />
Figure 1-<br />
TA7515AP<br />
A7515-13 Locknut<br />
A7515-37 Washer<br />
A7515-27T Information Disc<br />
A7515-15T Handwheel<br />
* A7515-25S O-Ring<br />
A7515-19 Seal Housing<br />
* A7515-42 Pressure Seal Ring (3)<br />
* A7515-9 Jam Ring<br />
A7515-10T Gasket<br />
* A7515-21 Washer<br />
A7515-17 Spring<br />
A7515-14 Stem<br />
A7515-2 Bonnet<br />
A7515-43 Stud (4)<br />
A7515-18 Nut (4)<br />
* A7515-8T Gasket<br />
A7515-26T Seat Disc<br />
A7515-12 Stem Holder<br />
A7515-16 Stem Retainer (2)<br />
* 7188-10 Roll Pin (2)<br />
A7515-5T Seat Disc & Retainer Assembly<br />
* A7515-4T Seat Disc<br />
Body<br />
A985B Plug (Not Illustrated)<br />
** 5555GS-3 Grease<br />
** 5555LT271 Loctite Cement<br />
** 5555PL Litharge Cement<br />
Figure 2 – A7515-5T<br />
Seat Disc & Retainer Assembly<br />
Seat Disc Retainer<br />
A7515-4T Seat Disc<br />
Seat Disc Retainer Washer<br />
Jam Nut<br />
stake here<br />
* These items are included in the TA7515-50<br />
assembly recommended for most repairs.<br />
** Must be ordered separately from Engineered<br />
Controls International, Inc.