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Mitre saw braking... but not stopping...

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Forum topic by newbiewoodworker posted 09-25-2010 04:18 AM 858 views 0 times favorited 8 replies Add to Favorites Watch
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newbiewoodworker

668 posts in 2289 days


09-25-2010 04:18 AM

You guys must either think that I abuse my tools, or that I am making this stuff up.. but if you want, Ill post a video tommorrow.

I was cutting a few boards on my new mitre saw, when It wouldnt brake. Usually, the blade brakes in 5 seconds after trigger release. I could hear at first, the brake pad being applied, but then it stopped, and the blade continued turning for another 30sec-1 min. I waited for it to stop, I then unplugged the saw. I looked, nothing noticably wrong. I repeated. This time I felt the blade, it was warm around the arbour. No cutting was done.

Also the motor sounded quieter. Less of a roar, more of a “zeeee” sound. I wasnt cutting through the guard as i first thought. I cannot figure this out. It wasnt doing it, until after I finished stapling up some plastic under my workbench.. but this just seems conincidental..

I hope its just dust, since I dont have a DC system.

Irs a Ridgid 10” CMS.

-- "Ah, So your not really a newbie, but a I betterbie."


8 replies so far

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newbiewoodworker

668 posts in 2289 days


#1 posted 09-25-2010 04:52 AM

I think I got the dangerous part out of the ” Saw blade not tightly on arbour..”

lol..

That is bad…

Why would it losen. I tightened it to the point of almost bending the wrench… Ill check in a sec…

-- "Ah, So your not really a newbie, but a I betterbie."

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newbiewoodworker

668 posts in 2289 days


#2 posted 09-25-2010 05:03 AM

I checked. It took one more turn, but by no means was it loose. I didnt fire it up, because its kinda 11Pm around here.. so I dont think the folks would take to kindly…

-- "Ah, So your not really a newbie, but a I betterbie."

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swirt

2117 posts in 2434 days


#3 posted 09-25-2010 05:49 AM

Are you sure you used to hear the brake pad? Most of these saws don’t use a mechanical break. They usually either have an off circuit that when you release the switch, it turns the motor into a generator, which creates the drag. Possible causes are a bad switch or bad brushes.

Though the fact that you were able to make a complete turn in tightening it sounds like a loose blade.

-- Galootish log blog, http://www.timberframe-tools.com

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newbiewoodworker

668 posts in 2289 days


#4 posted 09-25-2010 06:05 AM

Its mighty odd, because I had tightened it previously to the maximum. Arent the threads supposed to be anti clockwise, as so it tightens rather than loosens..?

-- "Ah, So your not really a newbie, but a I betterbie."

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newbiewoodworker

668 posts in 2289 days


#5 posted 09-25-2010 06:10 AM

Swirt: Your probably right, I just assumed a Brake Pad, due to the friction/heat.

-- "Ah, So your not really a newbie, but a I betterbie."

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newbiewoodworker

668 posts in 2289 days


#6 posted 09-25-2010 06:31 AM

Not what I was saying: I meant, isnt it not supposed to loosen with use… as to avoid any dismemberment…

-- "Ah, So your not really a newbie, but a I betterbie."

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newbiewoodworker

668 posts in 2289 days


#7 posted 09-25-2010 06:55 AM

Ahh… Mine just came with a screw… goes through the laser thingy, and into the arbour…

-- "Ah, So your not really a newbie, but a I betterbie."

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newbiewoodworker

668 posts in 2289 days


#8 posted 09-25-2010 06:55 PM

That did the trick. It seems to be fine.

Ill check it periodically for the next few days, and if it does it again, Ill put some teflon tape on the screw, hopefully that will stopped it.

-- "Ah, So your not really a newbie, but a I betterbie."

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