WARNING: Do not attempt field repair of valve body, top assembly, or motor drive unit. Any alterations could be dangerous, and will void all warranties. Insure that signal switch wands have not been dis- engaged and that interference does not exist at OPEN/ SHUT indicator. Failure to do so can result in faulty operation and extensive valve damage. 12. Energize valve and cycle several times from closed, to full- open positions to prove it operates properly. 13. Replace wiring, terminal block cover, and sideplate, and place valve in service after careful operational testing.
Insure that signal switch wands have not been dis- engaged and that interference does not exist at OPEN/ SHUT indicator. Failure to do so can result in faulty opera- tion and extensive valve damage.
12. Energize and cycle valve several times from closed, to full- open positions to prove it operates properly.
13. Replace top cover and screws, and place valve in service after careful operational testing. If satisfactory, replace sideplate.
1519- -X ONLY
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1. Shut off all electrical power to valve and close upstream gas cock. 2. Remove wiring access sideplate , disconnect incoming lead wires (tag carefully for reassembly). Then remove top cover screws and complete assembly , cutting wire seal if still in place. 3. Remove conduit and leads. 4. Note position of signal switch wands. 5. Unscrew the four acutator bolts with 9⁄16 " box wrench to ¼ ". DO NOT REMOVE. These bolts secure that valve body to the valve top assembly housing. 6.Gently lift top assembly NOT MORE THAN ¼", just enough to break the seal between valve body and the Buna "N" rub- ber gasket. 1 2 3 5 4 WARNING : Lifting too far may dislodge some small parts inside the top housing, requiring complex reassembly and retesting by trained factory personnel. 8. Carefully rotate top assembly 30° beyond, and then back to the desired position, in a plane parallel to the top of the body casting . 9. Align screw clearance holes in valve body with corre- sponding tapped holes in the bottom of top assembly . 10. Reinsert body screws , engaging threads carefully, then tighten securely. 11. Reconnect conduit and electrical leads. 3 4 5 5 4 7. Remove the four actuator bolts , (that were partially re- moved in step 5). 3
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WARNING: Do not attempt field repair of valve body, top assembly, or motor drive unit. Any alterations could be dangerous, and will void all warranties.
Instructions 1518/1519 Page 3
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