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General Category => General Scroll Saw Talk => Topic started by: losfound on April 19, 2010, 11:40:47 pm

Title: adjusting a dewalt 788
Post by: losfound on April 19, 2010, 11:40:47 pm
I have a Dewalt 788 and my question is can the nut be tightened that holds up the arm to keep it up when changing blades or will that cause damage the unit if it is tightened? 

Thanks

Larry
Title: Re: adjusting a dewalt 788
Post by: Ablade on April 19, 2010, 11:48:11 pm
Larry, yes, yes, yes, you can adjust that bolt so that the arm with stay up by itself.  Please don't waste your money on after market rigs.  I had one, but sold it when I learned I could adjust the bolt.  I was told how to do this by a DeWalt shop tech so that is good enough for me.
Title: Re: adjusting a dewalt 788
Post by: dgman on April 20, 2010, 12:09:16 am
I used to have a Jim Dandy on my saw, but took it off when I relized it was actually slowing me down. I feed from the top, so it is easier for me to lift the arm with one hand and feed the blade from the top  with the other hand. Then I let the weight of the upper arm to drop the blade through the hole.
When cutting a project with hundreds of inside cuts, it takes to much time to have to pull the upper arm down.
Title: Re: adjusting a dewalt 788
Post by: sgood on April 20, 2010, 01:20:14 am
Hey ablade, I learned something here tonight. I was unaware you could tighten the bolt. I'm comfortable with the Jim Dandy ez lift but I do want to test this so I know to recommend it or not. Thanks for the info.
Title: Re: adjusting a dewalt 788
Post by: dunk on April 20, 2010, 06:51:12 am
I was told by a Dewalt tech that tightening the bolt was not the correct thing to do as it will cause undue wear on the bolt and can cause the manufacturers warranty to be negated.  He actually suggested using a bungee cord attached above the saw or a Jim dandy ez lift.  I got the ez lift and love it.  I used to use a block of wood to hold up the arm.
Title: Re: adjusting a dewalt 788
Post by: Marshall on April 20, 2010, 07:36:30 am
I hate to say this > but I'm still using the old block of wood . Maybe someday when my wish list gets smaller I'll ask for the ez-lift ............Marshalll
Title: Re: adjusting a dewalt 788
Post by: oily on April 20, 2010, 08:08:55 am
I use the old 31/2" block. The only time I want the arm held up is for a blade change. When not in use I take the tension off the blade and leave the arm in the down position in  case my big flat feet hit the pedal when I'm stompin' around the shop
Title: Re: adjusting a dewalt 788
Post by: woodcrafter tom on April 20, 2010, 09:59:12 am
I teach scrolling at the Woocraft store in Harrisburg and was  told by the Dewalt Tech that adjusting the nut will not hurt anything. I have been doingthis adjustment for two years and have not experienced any problems.
Title: Re: adjusting a dewalt 788
Post by: crusty59 on April 20, 2010, 11:29:58 am
I also have the DeWalt. I have a shelf bracket above the saw with a bungee cord attached to the saw so that it goes up and down very easily, but it will stay up so I can change the blade. If you are interested I will post a picture of this setup
Title: Re: adjusting a dewalt 788
Post by: dunk on April 20, 2010, 11:35:15 am
I teach scrolling at the Woocraft store in Harrisburg and was  told by the Dewalt Tech that adjusting the nut will not hurt anything. I have been doing this adjustment for two years and have not experienced any problems.

That is good too know.  Thanks for passing that along.  I guess it depends on which rep you ask.
Title: Re: adjusting a dewalt 788
Post by: telecomdude on April 20, 2010, 11:35:47 am
Could someone elaborate on which bolt you are referring to on the Dewalt? I'm currently using the bunjee cord method...
Title: Re: adjusting a dewalt 788
Post by: losfound on April 20, 2010, 02:28:51 pm
I have a Dewalt 788 and my question is can the nut be tightened that holds up the arm to keep it up when changing blades or will that cause damage the unit if it is tightened? 

Thanks

Larry
thanks for all the input it's great and thank you Steve for this forum.

Larry
Title: Re: adjusting a dewalt 788
Post by: Barry on April 20, 2010, 09:27:33 pm
Here's my two cents, worth just what it costs you.

I also have a 788 and love it.  I use the EZ Lift and like it.  You definitly need something, it is too awkward to hold the saw up with one hand and feed with the other.  As far as tightening the bolt.  Anything mechanical that you tighten to hold a weight is going to increase wear and wear it out quicker.  I say go with something that takes the weight off (block,bungee or EZ lift) and keep scrolling!

Barry
Title: Re: adjusting a dewalt 788
Post by: sgood on April 20, 2010, 11:09:55 pm
As much as I like the DW788 it does make you wonder why they engineered the saw this way. They paid so much attention to details I wonder how they overlooked this need. It's been good for Jim Dandy I guess.
Title: Re: adjusting a dewalt 788
Post by: Becky on April 21, 2010, 12:48:57 am
I would also like to know which bolt that is.  There are a lot of them back there - or so it seems to me.  How do I know which one to tighten?  A picture pointing out the correct bolt would definitely make me feel warm and fuzzy.   :)  I guess a description would do in a pinch.  Thanks.
Title: Re: adjusting a dewalt 788
Post by: ups34 on April 21, 2010, 07:00:00 am
I was going to order the Jim Dandy. I see some say EZ lift. What is an EZ lift. I am new to scroll sawing. The bolt sounds like the wrong way to go. If just tightening the bolt was the fix. I would have thought it would be tighter from the start?
Title: Re: adjusting a dewalt 788
Post by: mark1945 on April 21, 2010, 09:58:30 am
Where do you get info on the jim dandy or the easy lift? I have always used just a block of wood.
Title: Re: adjusting a dewalt 788
Post by: UHMNL on April 21, 2010, 10:08:05 am
Jim Dandy website:
http://www.jimdandy.com/
Mike
Title: Re: adjusting a dewalt 788
Post by: northie66 on April 21, 2010, 07:55:39 pm
I'm so glad I found this thread because my buddy at work that scroll saws and has the same Dewalt as me, gave me a block of wood and said it's what he uses to change blades.  I took it so as not to insult the man, but I never understood what he was talking about because when I lift the arm up on mine, it stays there.  I suppose this is not the norm.  At least now I know why he gave me the block of wood.

Janet
Title: Re: adjusting a dewalt 788
Post by: chief on April 23, 2010, 12:09:41 am
Well i tried the bolt thing and it works.  I just tightend a little, not even a quarter turn and it stays up when you lift and it goes down easily when done.  I will make my own lift device next week and see how it works out and loosen the bolt.
The bolt works, but I agree with some of the others I think it will shorten the life a little of the saw.
Title: Re: adjusting a dewalt 788
Post by: Vince on June 11, 2010, 09:11:09 pm
     I use the block of wood to keep the arm up - works for me, I just happened to have a piece of wood in my shop. LOL

Vince
Title: Re: adjusting a dewalt 788
Post by: GrayBeard on June 11, 2010, 10:04:22 pm
The FIRST cut I made with the new 788 was a notch in a block to hold the arm up.

Works fine so far...

Only bad thing is I had to find me a taller stool!

~~~GrayBeard~~~
Title: Re: adjusting a dewalt 788
Post by: GrayBeard on June 12, 2010, 06:50:21 pm
Decided to try tightening the bolt.

I/6 of a turn works just fine...easy up, holds in place, easy down.

Maybe I can afford a JimDandy from my next allowance?!?!?!?

~~~GrayBeard~~~
Title: Re: adjusting a dewalt 788
Post by: dgman on June 12, 2010, 07:28:21 pm
GraryBeard, If you learn to feed from the top you don't have to hold the arm up.
Here's what I do. Loosen the lower clamp, Raise the upper arm with one hand, line up the blade from above with the other hand. let the upper arm with the blade drop into the hole, then tighten the lower blade clamp.
To make it easier to access the lower blade clamp, remove the lower blade guard. It's a thin bar mounted in front of the blade clamp.
Title: Re: adjusting a dewalt 788
Post by: GrayBeard on June 12, 2010, 08:20:17 pm
I am a switch hitter....sometimes feed from top and sometimes from bottom. Have problems with the right arm/shoulder on occasion.

Bottom blade guard came of right after the "Hold-Down" before the saw was ever turned on!

~~~GrayBeard~~~