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 must<br />
be performed only by qualified personnel.<br />
Remove all pressure from system before removing filling connector,<br />
then release lever lock and lift lever to vertical (valve open)<br />
position. Remove entire valve from line before performing 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 />
Before repairing valve, thoroughly examine valve lever and all associated<br />
parts for excessive wear. Check valve handle for proper function, and<br />
ACME threads for excessive wear and damage. Check surface of filling<br />
connector that seats on filler valve gasket when the valve is used, and<br />
make sure it has a smooth surface. Any components that are not in good<br />
condition and fully operational should be replaced during repairs.<br />
Disassembly:<br />
1. Clamp valve body in a vise by hex section of body inlet.<br />
2. With valve lever in open position, remove entire bonnet assembly by<br />
turning clockwise (left-hand thread), using a 1 11 /16" wrench.<br />
3. Remove upper gasket and discard.<br />
4. Clean cement residue from body threads using a wire brush.<br />
Thoroughly clean all parts of body assembly. Set valve body<br />
assembly aside for later reassembly.<br />
5. Return lever to horizontal (valve closed) position.<br />
6. Knock out groove pin with a 1 /4" drift pin.<br />
7. Remove lever. Discard bonnet washer.<br />
8. Pull stem assembly, together with lower spring, out from bottom of<br />
bonnet and keep together. Carefully inspect stem for scoring or<br />
scratches in stem seal area. Deep grooves or scars are cause for<br />
replacement of the stem and spring.<br />
9. Clamp the hex section of bonnet in a vise. Turn seal housing<br />
counterclockwise with a wrench and carefully remove from bonnet.<br />
10. Remove housing washer, jam ring, pressure seal rings and O-ring<br />
from seal housing and discard.<br />
11. Remove upper spring and bonnet gasket from bonnet. Discard<br />
gasket and save spring for reassembly.<br />
12. Place seat disc retainer end of valve assembly (removed in step 2)<br />
in a vise with the slotted end up.<br />
NOTE: Make sure end of disc retainer sticks out of vise enough to<br />
expose seat disc and retaining screw.<br />
13. Remove retaining screw by turning counterclockwise with a large<br />
screwdriver, and discard old seat disc.<br />
14. Remove old Loctite from threads of disc retainer with a wire brush.<br />
15. Press new seat disc in place over center of seat disc retainer. Large<br />
diameter of seat disc is inserted first.<br />
16. Apply Loctite sparingly to threads of retaining screw and thread into<br />
seat disc retainer using 30 in/lbs torque.<br />
A7797-50 <strong>Repair</strong> Kit<br />
for A7797 Quick-Acting<br />
Hose-End Valves<br />
Lock Lever<br />
Lever Spring<br />
17. Remove assembly from vise. * Denotes parts included in repair kit<br />
Lever<br />
* Bonnet<br />
Washer<br />
* O-Ring<br />
Seal Housing<br />
* Pressure<br />
Seal Rings<br />
Jam Ring<br />
* Housing<br />
Washer<br />
Upper Spring<br />
* Bonnet<br />
Gasket<br />
Bonnet<br />
Lower Spring<br />
Stem<br />
Stem Gasket<br />
Connector<br />
Cap Screw<br />
Guide<br />
Seat Disc<br />
Retainer<br />
* Seat Disc<br />
Retaining<br />
Screw<br />
Lever Pin<br />
Grove Pin<br />
* Upper<br />
Gasket<br />
Body<br />
Lower<br />
Gasket<br />
Nipple<br />
Handle<br />
Assembly<br />
Lower<br />
Body