update on dewalt 788 vibration / problem solved - Scroll Saw Woodworking & Crafts Message Board

roughcut · 01-08-2007, 09:36 PM

Just want to let everyone know that I found the vibration problem with the Dewalt 788. I looked everywhere on this thing and jiggled and moved linkages to never find any movement that could cause such a noise and vibration. Just as I was about to give up and take it to a service center I found that the M5 screw #27 that connects the connecting rod assembly #82 to the Verticle rocker assembly #8 was just ever so slightly loose. Not enough to cause any freeplay when moving it by hand but enough when the saw is running. I tightened that and good grief it's like a brand new saw. The point being, it was not at all an obvoiious problem so if you have vibration and noise that you can't find a reason for you might try tightening on the aformentioned area. Best to all..roughcut

NC Scroller · 01-08-2007, 09:53 PM

Good catch. Being without a saw is a real downer. Thanks for sharing.

Scott

north wood clocks · 02-06-2007, 06:24 PM

Thank you Thank you.
I really like my Dewalt 788, but the quality of work was slipppping. I thought I had big problems and I really wanted to finish the project I had started. I opened it (the saw) up and nothing appeared loose but 3 different screws tightended slightly. It is a completely different machine. The quality of the cuts is like a new machine. It is fun to saw again.
Thank you for your help.

Minnesota scroller · 02-06-2007, 07:32 PM

That's great news. After all, why scroll if it isn't fun? Enjoy, make sawdust and show us the fruits of your labors.

roughcut · 02-14-2007, 11:56 PM

Glad it helped!! Thats why I posted it. Really made a huge difference didn't it?
I am so glad it benefited someone else. My saw is still doing great. Thanks for sharing..

01-08-2007, 09:36 PM	#1
roughcut Junior Member Join Date: Nov 2006 Posts: 9	update on dewalt 788 vibration / problem solved Just want to let everyone know that I found the vibration problem with the Dewalt 788. I looked everywhere on this thing and jiggled and moved linkages to never find any movement that could cause such a noise and vibration. Just as I was about to give up and take it to a service center I found that the M5 screw #27 that connects the connecting rod assembly #82 to the Verticle rocker assembly #8 was just ever so slightly loose. Not enough to cause any freeplay when moving it by hand but enough when the saw is running. I tightened that and good grief it's like a brand new saw. The point being, it was not at all an obvoiious problem so if you have vibration and noise that you can't find a reason for you might try tightening on the aformentioned area. Best to all..roughcut

02-06-2007, 07:32 PM	#4
Minnesota scroller Moderator Join Date: Jun 2006 Location: SW MN Posts: 1,706	That's great news. After all, why scroll if it isn't fun? Enjoy, make sawdust and show us the fruits of your labors. __________________ Mike Making sawdust with a Dremel 1680. www.picturetrail.com/naturephotos

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01-08-2007, 09:53 PM	#2
NC Scroller Senior Member Join Date: Jul 2005 Location: Cary, NC Posts: 334	Good catch. Being without a saw is a real downer. Thanks for sharing. Scott

02-06-2007, 06:24 PM	#3
north wood clocks Senior Member Join Date: Feb 2006 Location: Saskatchewan Canada Posts: 108	Thank you Thank you. I really like my Dewalt 788, but the quality of work was slipppping. I thought I had big problems and I really wanted to finish the project I had started. I opened it (the saw) up and nothing appeared loose but 3 different screws tightended slightly. It is a completely different machine. The quality of the cuts is like a new machine. It is fun to saw again. Thank you for your help.

02-14-2007, 11:56 PM	#5
roughcut Junior Member Join Date: Nov 2006 Posts: 9	Glad it helped!! Thats why I posted it. Really made a huge difference didn't it? I am so glad it benefited someone else. My saw is still doing great. Thanks for sharing..