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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

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