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 should be evacuated from the system before starting<br />
repairs. Emergency service may be carried out with gas in the<br />
container but only under the same conditions required for<br />
releasing LP-Gas (see caution below).<br />
Installation, usage and maintenance of this product must be in<br />
compliance with all Engineered Controls International, Inc.<br />
instructions as well as requirements and provisions of NFPA<br />
#54, NFPA #58, DOT, ANSI, all applicable federal, state, provincial<br />
and 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<br />
and their vapors can cause serious injury or death! NH3 and LP-<br />
Gas must be released outdoors in air currents that will insure<br />
dispersion to prevent exposure to people and livestock. LP-<br />
Gas must be kept far enough from any open flame or other<br />
source of ignition to prevent fire or explosion! LP-Gas is<br />
heavier than air and may not disperse or evaporate rapidly if<br />
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 />
8475-51A Kit for<br />
7556V, 8475, G8475, 8477<br />
and 8593 Series Multivalves<br />
A. Disassembly<br />
1. Remove cap and save for reassembly.<br />
If the valve is repaired with gas in the container (emergency<br />
service):<br />
2. Place a vapor return coupling (part number 3171) on vapor<br />
valve. Stand aside and tighten onto 1 1 /4" ACME threads to close<br />
the internal excess flow valve. Leave coupling in place. Continue<br />
with steps A3-A5 and B1-B9.<br />
If the valve is repaired with all gas evacuated from the container:<br />
3. Remove the vapor return body (7556B-3) by turning counterclockwise,<br />
using a 1 5 /16" wrench with a handle of sufficient<br />
length to develop at least 1000 in/lbs torque. Discard assembly.<br />
4. Remove and discard stem & seat disc assembly (7556B-8),<br />
spring (7573-10) and gasket (2418-31) from MultiValve body,<br />
using care to keep from scratching gasket seal area.<br />
5. Inspect MultiValve body and clean if necessary, be sure that<br />
interior and gasket seal area are free of dirt, residue and foreign<br />
particles.<br />
B. Reassembly<br />
1. Position new gasket (2418-31) in MultiValve body.<br />
2. Place new spring over guide in MultiValve body as shown.<br />
3. Insert new stem & seat disc assembly into spring.<br />
4. Apply one 1 /8" stripe of a high strength thread locking<br />
compound on threads of vapor return body.<br />
NOTE: Thread locking compound must not contact seat disc or<br />
gasket.<br />
5. Press seat disc retainer into guide in MultiValve body and hold<br />
in position with the eraser end of a pencil. Place new vapor<br />
return body over pencil and thread into lower body, tighten to<br />
700 in/lbs torque with a suitable wrench.<br />
CAUTION: Unless seat disc retainer is held in guide during<br />
assembly, internal parts of valve may be damaged and threads<br />
of vapor return body and MultiValve body will not engage<br />
properly.<br />
6. Depress and release seat disc & retainer assembly a few times,<br />
if freedom of movement or proper seating is not possible,<br />
disassemble and repeat steps B-2 through B-6.<br />
7. Install new gasket (2797-20) in upper body.<br />
8. Reinstall valve and/or pressurize tank, check valve for proper<br />
operation and check all seal points for leaks by applying a leak<br />
detection solution.<br />
9. Replace vapor return cap.<br />
* 2797-20 Gasket<br />
7556V<br />
* 7556B-8 Stem &<br />
Seat Disc Assembly<br />
* 7556B-3 Body<br />
(Vapor Return)<br />
* 2418-31 Gasket<br />
* These items are included in the 8475-51A<br />
Assembly recommended for most repairs.<br />
* 7573-10 Spring