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General Scroll Saw Talk / Re: DeWalt 788 question

« on: December 30, 2018, 11:04:10 am »

I completely agree with Jscott. I watched all the videos to get an idea of what is involved. I bought the necessary grease. I already had all the required tools. I took mine apart and found right away a loose bolt on the main connecting rod. That's where my vibration was coming from. I did not find any worn bearings or sleeves so I just ended up greasing everything with the synthetic Valvoline grease. I used a pipe cleaner to apply the grease with and tried to work it well into the needle bearings. I also applied grease to the sliding wedge that is what applies the tension to the blade. It's not a hard job and once you do it, you won't have to worry about it again for a very long time. I bought my type 1 Dewalt used on Craigslist. It had never had any tender loving care prior to what I did.

Ray

Ray:

I know this is an old post, but I'm just new to the Forums.

I saw your post that said you dis-assembled and lubed your DW788.  I bought a DW788, and it doesn't have the serial number/ID label on the motor, but I would guess it's a Type 1.  I got the saw, stand, and light included for $250 off craigslist locally, and it runs and cuts okay, but rattles at higher speeds.  I don't know if it's the adjustment of the tensioning rod, but I did try the suggested rotation and turned it 3 turns CCW, without total side cover disassembly, hoping it would easily stop the rattle, but it did not help.  (Did I turn it the wrong way?)

Anyway, I'm kinda spooked at disassembly, but would try it if it's not too risky to getting it back together.  You said you did a lube, but didn't have any bad bearings?  Where would I get bearings, if I needed them.

I've done quite a bit of woodworking/cabinet-making/etc. as a DIY-er, but scrollsawing is new to me.  Just a greenhorn, her.

thanks
tom