Delta 36-630 Tablesaw Question

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Forum topic by cmaeda posted 09-05-2008 08:08 PM 9574 views 0 times favorited 5 replies Add to Favorites Watch
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205 posts in 3819 days

09-05-2008 08:08 PM

Hello, I thought someone here might know this but a few weeks ago, I got a Delta 36-630 tablesaw for free. It was in really bad shape, the motor didn’t even start. I’m almost done restoring it and I got the motor working again. But I’m having a problem trying to align the pulleys. The bracket that attaches the motor base plate to the trunnions has a twist in it. This causes the pulley on the motor to be at an angle to the pulley on the arbor where the saw blade attaches. Does anyone know if this is correct? The bracket doesn’t look like it was twisted but it wouldn’t surprise me if it was. Can anyone confirm this?

The twist causes the tablesaw to vibrate a lot but the motor runs really surprisingly smooth if I don’t have the belt on it. I didn’t even have to replace any bearings.

The cast iron top also has a crown in it so I’ll be busy for a while with my hand scraper.

Thanks for your help!

5 replies so far

View marcb's profile


768 posts in 3938 days

#1 posted 09-05-2008 08:33 PM

Twist in which direction?

I’m not familiar with that model and I’m having trouble finding a picture that clarifies how the motor mounts. Got any pictures of the tail?

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205 posts in 3819 days

#2 posted 09-05-2008 08:36 PM

Sorry I’m at work, but I will try to post a picture later tonight.
This is how the bracket looks like:
When I install it on the tablesaw, the twist is very apparent as the left side of the motor is close to the tablesaw than the right side.

View mongoonlypawn's profile


1 post in 3789 days

#3 posted 10-01-2008 05:06 PM

Hi. I have had the same problem with my 36-640 tablesaw. I ordered a replacement motor mount bracket from, as well as a Fenner PowerTwist vibration reducing belt (

I received the drive belt first, and installed it on the machine, with the warped motor mount. This alone dramatically reduced the vibration of the machine. This belt is easy to adjust the length by adding/removing links.

Just a warning if you use this belt, it is significantly more elastic than a normal v-drive belt, and the belt is tensioned by the weight of the motor, so you may need a link or 2 smaller length than your existing v-belt.

I finally received the motor bracket, last night, and installed it this morning, with the new belt, and I couldn’t tell if there was any improvement the vibration. It did square the pulleys much better, which may improve the life of the belt.

I would recommend trying the PowerTwist belt before you order the replacement bracket.

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205 posts in 3819 days

#4 posted 10-01-2008 08:20 PM

I ended up using some clamps to twist the motor bracket back into alignment and now, the tablesaw is vibration free. It even passed the nickel test! I didn’t need to upgrade the belt. The bracket is pretty easy to bend so I’m going to weld some metal bars on it to strengthen it. I think over time, the pressure from the belt bends and twists the bracket.

View acviltrakis's profile


1 post in 1572 days

#5 posted 10-28-2014 12:11 AM

The Part# 422-39-014-0006 motor bracket has been discontinued.
I made a steel one for my mom’s neighbor and had enough material to make several more.
If your aluminum bracket is bent or broken and you want to keep your saw going It’s listed on ebay.

Custom steel motor bracket replaces Part# 422-39-014-0006 Delta 10” saw # 36-630

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