Ridgid 14in Bandsaw #5: Motor Wiring Questions

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Blog entry by Sarit posted 04-30-2011 09:50 AM 1460 reads 0 times favorited 1 comment Add to Favorites Watch
« Part 4: Motor Upgrade & Wheel Balancing Part 5 of Ridgid 14in Bandsaw series Part 6: Oops! »

I opened up the panel for the new 1.5hp motor. It looks like its already wired for CCW rotation at 120V which is what I wanted. It looks like they didn’t attach the green ground wire to the green ground screw inside. The wiring diagram on the motor makes no mention of ground. Should I connect the ground anyways? Also they used 18 gauge wire for the cord which seems a bit thin for the 17.6 amps the motor is rated for. Should I upgrade the wire also. If so, to what gauge?

If I have to rewire this anyways, should I wire it for 240? Are there any advantages to 240v other than smaller wire gauges?

1 comment so far

View Tedstor's profile


1643 posts in 2688 days

#1 posted 04-30-2011 05:45 PM

I bought a few older machines that came with old, non-grounded, brittle wiring. First thing I did was replace the wiring. I think I used 14g. Its tough to answer the grounding question w/o seeing the diagram, but it sounds as if the ground should be connected to the terminal you described.

220v pulls half the amps. Its less taxing on the home’s circuit. The power is more consistent, meaning start ups will be smoother and the motor will run better under load. There are other variables though that effect this though, so this is all “in theory”. And as a disclaimer, I am not a electrician, so I would urge you to take this info for what its worth. Hopefully someone smarter than me will chime in and confirm what I’m telling you (or raise the BS flag).

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