I just picked up a Dr. Pepper machine, but no tags on it whatsoever. From research I believe it is a Dixie Narco DNCB 304/174-9-10. Measurements are 66"H x 26.5"D x 36"W. Any help with the identification will help. I really need to find a service manual. The machine will accept coins, correct change light will come on, but nothing will vend. I can manually activate the vend motors on all 10 selections. I used KEB's Free Vend tip and disconnected Wire 71 and inserted Wire 10, but now the #2 vend motor will engage just by plugging it in and it will not stop. Bad Vend Relay? Bad Vend Motor? Any help would be appreciated.....

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