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Open Question: Where would I find a SERVICE manual for an antique sewing machine? and more... Open Question: Where would I find a SERVICE manual for an antique sewing machine?Where would I be able to find a service OR repair manual for a antique Kenmore sewing machine, preferably model # 117-812? I have the instruction manual but can't find a service manual to save myself. Please help. Open Question: Fluorescent Light fixture *Hum* grounding Issue?I installed three new 48" fluorescent light fixtures in my shop. My shop is a metal style carport garage. I wired them in using normal household 14-awg wire in the standard white/black/bare solid copper wire. The black and white went to the ballast and the bare copper wire went to the green ground wire that just grounds to the body of the fixture. All three lights are on one string of wire connected to a light switch and then going to the breaker box with their own 15-amp breaker. The light fixtures are mounted directly to the metal framing of the garage with a 3/8" thick by 1" wide universal automotive weatherstripping in 48" strips so the metal fixture case don't come into contact to the metal framing of the garage. The lights have been hooked up for a few days now but I just got bulbs today. When I turn the lights on the fixtures buzz/hum quite loud. When I read the manual that came with the fixtures it says that a buzz/hum could be caused from a bad ground. If it is a bad ground I don't see what I did wrong. I used all new 14awg wire, and installed them on a their own 15-amp breaker. Ive checked all the connections at the breaker box and light fixtures and light switch they are all connected. So my questions are: Could this be just because the lights are new? Or it's 40*f here, Could cold weather cause them to hum? If it is a grounding issue, Should I take the bare copper (green) ground and connect it to the metal framing of the garage as well as the fixture case? OR what other things can I do to fix the ground (if that is the issue)? BTW: The "hum" is not the normal fluorescent light hum, This is quite loud, Ive never herd one this loud before. Thanks for your time! ***responce to answers*** It IS grounded all the way to the box. Im sure the box is grounded to the earth because it just passed inspection in july when I bought the house. I forgot to mention, the breaker box is the house's breaker box. I have two power leads from the main house breaker box to the shop. One for plugs and one for lights. Both are wired with outdoor grade 12 awg wire and then connected in the shop to the indoor 14awg wire. They are cheap $10 lowe's light fixtures. Im 99% sure they are indoor lights. I never figured tempture would effect the lights. I figured indoor = Dry outdoor = wet. Never thought about the tempature. Thanks for the help. More Recent Articles
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