problem with DeWalt 788 blower

  • Advertise with us

« back to Scrollsawing forum

Forum topic by JesseTutt posted 01-05-2013 06:18 PM 5368 views 0 times favorited 9 replies Add to Favorites Watch
View JesseTutt's profile


854 posts in 2079 days

01-05-2013 06:18 PM

Topic tags/keywords: question scroll saw dewalt dewalt 788

The blower tube that connects to the upper arm and flexes to blow the saw dust off of the wood cracked and now will not stay where I placed it. The first joint where the black plastic connects to the steel ball has a crack in it. The slight vibration when the saw is running causes the entire tube to drop onto the table.

Here is a picture of the saw:

and a close-up of the break:

I tried to remove the last segment but it would not easily come off the tube. I don’t want to try to force it because it might break the next segment. Would you use expoy, hot melt, or ??

I thought about gluing the last segment to the metal connector. That would decrease flexibly (positioning of the blower tube) but at least I would have something.

What do you think?

-- Jesse, Saint Louis, Missouri

9 replies so far

View Bill White's profile

Bill White

4907 posts in 3929 days

#1 posted 01-05-2013 07:17 PM

I gave up on the std. blowers on scrollers. Built my own by using a standard 1/4” air hose connector, some clear tubing and a nozzle fabbed from small brass tubing.
Now I just hook the blower to the compressor at a very low pressure setting.
Works like a champ, and I don’t have to futz around with the crappy blower stuff on my saw.
Just the way I did it.


View shipwright's profile


7967 posts in 2767 days

#2 posted 01-05-2013 07:57 PM

I had the same problem on my DeWalt.
I got a new one on warranty. While I was waiting for it I did get the broken piece to come out without breaking anything….and the “new” socket snapped on to the base ball.
Maybe I was just lucky but try it. You have only one segment to lose.

-- Paul M ..............If God wanted us to have fiberglass boats he would have given us fibreglass trees.

View me5269's profile


43 posts in 2136 days

#3 posted 01-06-2013 12:48 AM

i remeber reading somewhere that someone with the same problem used a heat gun or hair dryer to warm up the joint and it popped right apart. also used the same method to attach the new joint to the ball.

-- Mike

View Grandpa's profile


3259 posts in 2644 days

#4 posted 01-06-2013 12:52 AM

That looks like the same part that metal working machines use for coolant. Check with a place that sells those parts and see what it would cost. This appears to be too short. You might get a better quality from these places if they will attach to your saw. A part for a $5,000 machine should be better than a part for a $500 machine. I don’t know.

View Madwood's profile


68 posts in 3020 days

#5 posted 01-06-2013 12:54 AM

Jesse, try softening the 2nd link with a blow dryer or heat gun. Once it’s a little soft, it’ll pop the 1st link without much effort.While it’s still soft, press it onto the metal nub on the side of the saw. Once it cools down, it should be good as new. On the chance that won’t work for you, another option could be to use a small hose clamp to hold it place and seal any leakage with hotmelt glue. YMMV

-- In the shop making chaos out of order

View JoeinGa's profile


7735 posts in 1976 days

#6 posted 01-06-2013 01:27 AM

Those links just pop in and out of each other. If you put a bit of pressure and bend the “hose” far enough at any point you’ll see how easy they actually do snap apart. That way you can make ‘em longer or shorter as needed

-- Perform A Random Act Of Kindness Today ... Pay It Forward

View gvales's profile


20 posts in 2308 days

#7 posted 01-12-2013 11:56 PM

Had same problem brand new. Dewalt is replacing under warranty, but for now I just used a small worm drive hose clamp.

View Muddquez's profile


2 posts in 1947 days

#8 posted 01-14-2013 03:55 PM

It looks like 1/4 inch Loc-line, you can get it directly from the company if you want to replace any of it. It should come off without breaking any of the other links though.

View William's profile


9949 posts in 2811 days

#9 posted 01-14-2013 08:58 PM

My saw hasn’t had a blower on it in a year or two. I just blow dust away with my mouth if enough gets in the way of me seeing what I’m working on.
I do think that’ll snap out though. If not, what have you lost? From what you’re saying, the blower is useless as is anyway. I say use some of the suggestions here and go for it.


Have your say...

You must be signed in to reply.

DISCLAIMER: Any posts on LJ are posted by individuals acting in their own right and do not necessarily reflect the views of LJ. LJ will not be held liable for the actions of any user.

Latest Projects | Latest Blog Entries | Latest Forum Topics