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3rd April 2019, 11:03 AM #1
Dewalt DWE7491-XE - Crank will turn freely upwards but blade will not rise
Hi all,
My Dewalt DWE7491-XE - Crank will turn freely upwards but blade will not rise.
Yesterday it was rising and lowering freely with ease.
Today the crank will engage the blade height downwards.
But the crank WILL NOT engage the blade height upwards.
I'd like to repair this myself.
If anyone has the DWE7491-XE and has fixed this themselves,
could you please reply.
Thanks in AdvanceThanks,
Barry G. Sumpter
May Yesterdays Tears Quench the Thirst for Tomorrows Revenge
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3rd April 2019 11:03 AM # ADSGoogle Adsense Advertisement
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3rd April 2019, 02:05 PM #2
Ok just a few screws and bolts and came apart easily.
The threads on the gear case have stripped.
I'd like to get a matching nut and weld it just above the stripped thread hole.
Any suggestions?
IMG_4314.jpg
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IMG_4312.jpgThanks,
Barry G. Sumpter
May Yesterdays Tears Quench the Thirst for Tomorrows Revenge
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3rd April 2019, 05:54 PM #3Woodworking mechanic
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Bolt or Nut?
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3rd April 2019, 05:56 PM #4
Darn it!
Nut.
Corrected.Thanks,
Barry G. Sumpter
May Yesterdays Tears Quench the Thirst for Tomorrows Revenge
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3rd April 2019, 07:29 PM #5Senior Member
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What about a thread saver? These you can buy from Boltmasters and they screw onto the bolts thread making it bigger. Then you tap the stripped hole to match the larger thread saver
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3rd April 2019, 07:40 PM #6GOLD MEMBER
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Like Runningman said, thread repair in a nut is very easy. You just need to identify the thread type and size. If it is a standard size then a helicoil kit (or an equivalent brand) will fix it without much effort.
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3rd April 2019, 07:43 PM #7Senior Member
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3rd April 2019, 08:43 PM #8
I rang boltMasters who don't stock the 14mm / 2mm thread nuts.
They'd have to order them in as its not a common size they sell very often.
grrrr
Sounds like I need two taps.
First is to widen the stripped threads hole.
Then tap the widened stripped threads hole to match the insert/collet.
Deducing the insert/collet has a thread on the outsize.
Then tap the inside of the insert/collet to match my bolt thread.
Unless the insert/collet comes in a m14/2mm thread side.
yep: https://www.youtube.com/watch?v=9rtiFBC0wms
Be sure to read the comments.
Lot of mucking about in a tight space.
Was hoping I would NOT need to remove the gear housing.
Well duh, I can work from the bottom I think.
Is there an epoxy for glueing the bolt to the housing?Thanks,
Barry G. Sumpter
May Yesterdays Tears Quench the Thirst for Tomorrows Revenge
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3rd April 2019, 09:50 PM #9GOLD MEMBER
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When you get a kit you get the required tap and the inserts. You also need an insertion tool that reduces the insert diameter as you screw it in and then snaps off the little lug to trap the insert.
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4th April 2019, 07:05 AM #10Woodworking mechanic
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I may have a helicoil kit that size at work if you have problems finding one. You are sure it’s 14mm x 2.0 pitch?
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4th April 2019, 07:53 AM #11
Not as yet but will soon.
Thanks,
Barry G. Sumpter
May Yesterdays Tears Quench the Thirst for Tomorrows Revenge
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4th April 2019, 08:47 AM #12
Was speaking to dewalt to find out if they could tell me what the specs were.
They had the presence of mind to ask me about my warranty.
They looked up my serial number and told me it was covered.
I'm not debating the issue.
Going down to have it assessed.
Trying to stay calm as I've got the worst luck and don't expect this to turn out well.Thanks,
Barry G. Sumpter
May Yesterdays Tears Quench the Thirst for Tomorrows Revenge
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4th April 2019, 03:59 PM #13
Sounded better on the phone than in reality.
Could have sworn they were talking like they could have a look at it straight away and tell me.
Nope. 5 to 10 working days.
So shocked I returned home after dropping it off I forget to ask about the control screw specs.
I've left a message for their repair team.
They will send me a message in reply.
I swear this is the only tool I've purchased outright off the shelf.
So was super surprised it was still under any warranty.
Gonna have to find mitre saw projects to keep me busy.
My other worry is that they will simple replace the part to be tread stripped again in a few years.
At the very least other will be able to take advantage of this discussion.
I'm sure I'll be returning.Thanks,
Barry G. Sumpter
May Yesterdays Tears Quench the Thirst for Tomorrows Revenge
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15th April 2019, 03:06 PM #14
Now DEWALT are telling me it's gonna cost $250 for the repair.
Since the saw didn't do it on its own.
Told him it was a moving part.
He told me it wasn't.
I told him he was talking silly.
He told me he was going to have his manager ring me and maybe I could talk him into repairing it under warranty.
Whats up with that?Thanks,
Barry G. Sumpter
May Yesterdays Tears Quench the Thirst for Tomorrows Revenge
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15th April 2019, 03:10 PM #15Senior Member
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The joys of a warranty claim! Not worth its value on paper, from past experience with lots of things, hence why I don’t buy brand new cars
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