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 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 & <strong>Repair</strong> Procedure<br />
NOTE: Maintenance may be performed with the valve installed or with<br />
valve removed from the line. In either case, the gas supply must be<br />
isolated from the line by closing a separate shut-off valve. Before starting<br />
repairs, open handwheel as far as it will go.<br />
CAUTION: Do not apply force after valve is fully open.<br />
A. Disassembly<br />
1. 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 />
2. Remove body gasket and discard.<br />
TO INSTALL NEW SEAT DISC:<br />
3. Clamp the square section of bonnet in a vise.<br />
4. While holding the hex section of the seat disc retainer with a wrench,<br />
use another wrench to remove the jam nut.<br />
5. Remove seat disc retainer washer and save for reassembly, take out<br />
and discard seat disc.<br />
A7515-50 Assembly for<br />
A7515AP, A7516AP, A7517AP,<br />
A7517FP, A7518AP and<br />
A7518FP Shut-Off Valves<br />
6. Soak new seat disc (A7515-4) in water prior to installation.<br />
7. Press seat disc into recess of seat disc retainer.<br />
8. Place disc retainer washer over threaded portion of seat disc<br />
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 until seat disc is fully<br />
compressed against lip of seat disc retainer, about 300 in/lbs.<br />
torque is required.<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 A-<br />
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 />
A7515-50 REPAIR PARTS, FOLLOW ALL OF THE REMAINING IN-<br />
STRUCTIONS.<br />
12. Remove handwheel locknut by turning counterclockwise with a<br />
small wrench to allow removal of washer 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<br />
particles.<br />
Figure 1-<br />
A7515AP<br />
A7515-13 Locknut<br />
A7515-37 Washer<br />
A7515-15B Handwheel<br />
* A7515-25 O-Ring<br />
A7515-19 Seal Housing<br />
* A7515-42 Pressure Seal Ring (3)<br />
* A7515-9 Jam Ring<br />
A7515-10 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 />
* A7515-8 Gasket<br />
A7515-26 Seat Disc<br />
A7515-12 Stem Holder<br />
A7515-16 Stem Retainer (2)<br />
* 7188-10 Roll Pin (2)<br />
A7515-5 Seat Disc & Retainer Assembly<br />
* A7515-4 Seat Disc<br />
Body<br />
A985B Plug (Not Illustrated)<br />
** 5555GS-3 Grease<br />
** 5555LT271 Loctite Cement<br />
** 5555PL Litharge Cement<br />
Figure 2 – A7515-5<br />
Seat Disc & Retainer Assembly<br />
Seat Disc Retainer<br />
A7515-4 Seat Disc<br />
Seat Disc Retainer Washer<br />
Jam Nut<br />
stake here<br />
* These items are included in the A7515-50<br />
assembly recommended for most repairs.<br />
** Must be ordered separately from Engineered<br />
Controls International, Inc.