DeWalt knocking noise - Scroll Saw Woodworking & Crafts Message Board

afscroller · 09-06-2007, 12:11 AM

My Dewalt just started to make a knocking noise when I am cutting.
I set the tension, start sawing, Knocking noise. At the same time the tension starts backing off. Can anyone help?

Woodbutcher68 · 09-06-2007, 01:58 AM

I get the knocking and tension when the blade is loose and slipping. Try roughing up the end of both thumbscrews with some sandpaper. If I have everything right, my tension stays between the 3 and 4.

lucky788scroller · 09-06-2007, 02:42 AM

check out www.scrollsaws.com under dewalt tuneup if Freds advice doesnt help. Dale

afscroller · 09-06-2007, 02:59 AM

, Woodbutcher68, for the information
The Saw is knocking as soon as I start it up.
I can watch the tension lever moveing from tight to loose,.

Daryl185 · 09-06-2007, 05:21 AM

the hex bolt under the cover that holds the tension adjuster may have worked its way loose try taking the cover off you will need a small torx bit to remove the cover and a hex wrench to try tightning the adjuster HTH

Marsha · 09-06-2007, 05:23 PM

Quote:

Originally Posted by afscroller

My Dewalt just started to make a knocking noise when I am cutting.
I set the tension, start sawing, Knocking noise. At the same time the tension starts backing off. Can anyone help?

This sounds real familiar.
Same thing happened to me back in July.
Before taking any parts off your saw, please unplug it. Then remove the tension cover, unscrew the large bolt, remove the tension lever to get to the aluminum cover. Check the threads in the cover, chances are the threads are stripped and there is particles of aluminum floating around in there. The hole is probably elongated from the movement of the bolt. The way to fix it is to take the cover and the bolt to a machine shop or auto repair shop and have someone put a Helicoil in the cover for you. It's real important to take the bolt with you, they match the Helicoil to the bolt. Problem fixed and you probably won't ever have the problem again.
If you search back through posts started by me you'll find one "Dewalt Woes". It's all there even some pictures of the parts. If I knew how to link to a previous post I would, but I don't, so I can't.
Good luck with getting it fixed
Marsha

racreel · 09-06-2007, 06:03 PM

Quote:

Originally Posted by Marsha

...If you search back through posts started by me you'll find one "Dewalt Woes". It's all there even some pictures of the parts. If I knew how to link to a previous post I would, but I don't, so I can't.
Good luck with getting it fixed
Marsha

DW788 Woes

09-06-2007, 12:11 AM	#1
afscroller Junior Member Join Date: Oct 2006 Posts: 3	DeWalt knocking noise My Dewalt just started to make a knocking noise when I am cutting. I set the tension, start sawing, Knocking noise. At the same time the tension starts backing off. Can anyone help?

09-06-2007, 01:58 AM	#2
Woodbutcher68 Senior Member Join Date: Aug 2005 Location: Hammond, IN Posts: 828	I get the knocking and tension when the blade is loose and slipping. Try roughing up the end of both thumbscrews with some sandpaper. If I have everything right, my tension stays between the 3 and 4. __________________ Fred There's a fine line between woodworking and insanity, I'm just not sure which side of the line I'm on!

09-06-2007, 05:21 AM	#5
Daryl185 Senior Member Join Date: May 2006 Location: Lakewood Ranch Florida Posts: 1,162	the hex bolt under the cover that holds the tension adjuster may have worked its way loose try taking the cover off you will need a small torx bit to remove the cover and a hex wrench to try tightning the adjuster HTH __________________ Daryl S. Walters Psycotic scroller with a DeWalt 788

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09-06-2007, 02:42 AM	#3
lucky788scroller Senior Member Join Date: Sep 2005 Location: wisconsin Posts: 6,260	check out www.scrollsaws.com under dewalt tuneup if Freds advice doesnt help. Dale

09-06-2007, 02:59 AM	#4
afscroller Junior Member Join Date: Oct 2006 Posts: 3	, Woodbutcher68, for the information The Saw is knocking as soon as I start it up. I can watch the tension lever moveing from tight to loose,.