06:17PM | 01/24/03
Member Since: 01/23/03
3 lifetime posts
I found an old (heavy duty) electric motor that I've been using to drive an even older belt-driven table saw. It would work better if I could turn the motor around and have it spin the opposite direction. I tried switching the terminals inside, but it still always spins in the same direction. Is there an add-on switch to reverse the polarity? Someone told me that the motor is most likely single phase, single speed, and will only go one direction no matter what. Does that sound accurate? Thanks for any help....



09:41AM | 01/29/03
Member Since: 09/17/02
524 lifetime posts
Do you know what type of motor this is? Capacitor start, capacitor start/capacitor run, split phase? Did you check the plate on the motor or the cover over the wiring connections. They sometimes put reverse direction in there.


04:03PM | 01/31/03
Member Since: 01/23/03
3 lifetime posts
Thanks for the reply Joed,

It's a capacitor start(centrifuge switch)-induction run motor. There appears to have been a wiring diagram on the inside cover, but it's long since deteriorated. It's an old "Whirl-a-Way" c. 1950?? Not sure about split-phase...Runs great. 115v AC. Coming off the copper coil are three wires. The way they are "mounted" on the coil is strange. Two of the three face one way, and then once faces the opposite way by itself. Which one might be the start winding? I took it to an electric motor shop and they thought it was not reversible, but weren't sure since it was old. They were interested in selling me a new one, didn't seem interested in offering a "repair" or rewiring. Also, I didn't lable the wires before I cut them (oops) and rearranged them trying to get the right combination to get a reversal. I was able to get it working again, but it seems to be lacking in starting power, like I didn't wire in the capacitor correctly. Know of any wiring diagrams or is there a standard for wiring the more simple motors sch as these? Thanks again!



04:06PM | 01/31/03
Member Since: 01/23/03
3 lifetime posts
oh, and by "got it working again" I mean it still runs in the wrong direction.



Post a reply as Anonymous

Photo must be in JPG, GIF or PNG format and less than 5MB.


type the code from the image


Post_new_button or Login_button

All bookworms need a good bookmark that inspires them to keep reading. To make this colorful bookmark, cut a rectangular p... It turns out that many bath and kitchen cleansers contain chemicals that are dangerous to the skin and eyes, and often pro... So often we paint tiny nooks white to make them appear larger, but opting for a dark, dramatic wall color like this one—Be... Chocolate-colored walls and large window frames allow the exposed wood beams to take center stage in this small screened p... If you're not crazy about the idea of commingling plants and pool, this modern variation may be more to your liking. The s... Yes, a freestanding garage can become its own tiny house. Artist Michelle de la Vega has all the comforts of a modern resi... There’s nothing like a new set of cabinet hardware to refresh a room. The possibilities are endless: Go modern, rustic, or... Pursue what's known as the stack effect. To achieve it, open the windows on both the upper and lower floors, and as warm a... Like no other floor type, a checkerboard design works wonders to underscore the retro kitchen theme. Vinyl flooring, ceram... Twine lanterns add pops of crafty—but sophisticated—flair to any outdoor setting. Wrap glue-soaked twine around a balloon ... When securely fastened to a tree or the ceiling of a porch, a pallet and some cushioning make the ideal place to lounge. V... Incorporate nature into your lighting scheme by securing a dead tree in a concrete mold and draping your pendant lamp from... For the cost of a can of exterior paint , you can totally transform your porch. Paint the floor a hue that complements yo... In this urban apartment, a standard-issue patio became a serene and green perch by replacing the typical concrete with gro... If you put the washing machine in the mudroom, you can stop the kids from walking through the house in dirty, grass-staine...
Newsletter_icon Google_plus Facebook Twitter Pinterest Youtube Rss_icon