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Forum topic by rlrjr posted 10-23-2010 09:07 PM 1272 views 0 times favorited 7 replies Add to Favorites Watch
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rlrjr

65 posts in 2300 days


10-23-2010 09:07 PM

Good afternoon,

I bought a used 3650 a few months ago and the fella gave me a white plastic throat plate that had not been used before. (No slot in it for the blade to protrude through.) He said to lower the blade until it was below the table top, insert the throat plate, turn on the saw and slowly raise the blade and allow it to cut through the plate thus producing a zero-clearance plate. However, when I lower the saw blade below the top of the table the drive belt from the motor becomes so loose that it won’t turn the saw blade. What don’t I get about this procedure?

-- When I works, I works hard. When I sits, I sits loose. And when I thinks I falls asleep.--


7 replies so far

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Howie

2656 posts in 2383 days


#1 posted 10-23-2010 09:50 PM

I would check the motor mounting bracket. I have a 3650 and have never had this problem.
Once you get it fixed you’re gonna love it. Great saw.(hint buy a good blade)

-- Life is good.

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knotscott

7208 posts in 2836 days


#2 posted 10-23-2010 10:49 PM

You may need to start the cut with a smaller diameter blade…like a circular saw blade. It also sounds like the motor and belt may need some adjusting.

-- Happiness is like wetting your pants...everyone can see it, but only you can feel the warmth....

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interpim

1158 posts in 2919 days


#3 posted 10-23-2010 10:59 PM

yeah… adjust your motor on the mounts. There are to pins that it sits on with a bolt on them that lock it in place. loosen those up and adjust it back a bit.

-- San Diego, CA

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syenefarmer

431 posts in 2541 days


#4 posted 10-24-2010 02:10 AM

I have an earlier model of your Ridgid TS, the 3612, and I’ve never been able to start cutting a ZCI with a 10” blade. The top of a 10” blade just can’t be lowered enough to allow any clearance between the blade and the insert. For full kerf ZCI’s I use one of the outside blades from my dado set to start the cut in the insert. For thin kerf ZCI’s I use a circular saw blade.

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Abbott

2570 posts in 2764 days


#5 posted 10-24-2010 02:36 AM

I also have a TS3650 and I have no problems cutting a slot into a zero clearance insert. I just lower the 10” blade, install the blank insert, turn on the saw and slowly raise the blade to cut the slot. If your drive belt is to loose to do this then you have something out of adjustment.

-- Ohh mann...pancakes and boobies...I'll bet that's what Heaven is like! ♣ ♣ ♣ ♣

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Howie

2656 posts in 2383 days


#6 posted 10-24-2010 03:34 AM

Actually when you insert the plate and raise the blade thru it, you should move your fence over it slightly so it will hold the plate down.

-- Life is good.

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rlrjr

65 posts in 2300 days


#7 posted 10-24-2010 03:45 PM

Thanks to all who offered suggestions on fixing the problem of the loose drive belt when the blade is lowered below the surface of the table. After reading some of the emails I wanted to go out to the shop and immediately look it over but common sense and prudence took over as it was 11:15 at night and I waited until this morning. I lowered the blade as far as it would go and looked at the motor and saw that the motor had “bottomed out” on the slotted bracket with the screw that would lock the motor in one position. (Pretty much like tightening the fan belt on an alternator on your car.) I loosened the two bolts that lock the two rods that support the entire motor assembly and pulled the motor out until the belt was tight. I then lifted up on the motor and pulled it out just a little further and then tightened the two bolts on the rods that support the motor. I felt that doing this would allow some space for the motor to lean further out if and when the belt gets slightly longer as it wears over time.
I took the blade from my chop saw and put it on the 3650 as it is an 8 1/4” blade and cut into the new blank insert and raised the blade as far as it would go. Then I put on the 10” blade, slid the blank over it and finished cutting the slot by raising the blade up as far as it would go. Works perfectly! Thanks to all of you for your suggestions that solved the problem very quickly.

-- When I works, I works hard. When I sits, I sits loose. And when I thinks I falls asleep.--

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