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DeWalt 7740 RAS Yoke Adjustment

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Forum topic by Jim246 posted 07-24-2013 01:55 PM 828 views 0 times favorited 1 reply Add to Favorites Watch
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Jim246

2 posts in 1227 days


07-24-2013 01:55 PM

Topic tags/keywords: dewalt 7740 ras ras yoke adjustment ras king bolt ras yoke clamp handle loose ras yoke

Just bought a used DeWalt 7740 RAS minus table which is currently in process of assembly, but first noticed loose yoke clamp and play between the upper face of the yoke and the bottom face of the rollerhead. I followed the manual’s “yoke clamp handle adjustment” to the letter, but am simply unable to get it tight. The king bolt adjuster turns, but something is slipping and the yoke clamp handle isn’t getting any tighter. I’m afraid the threads on either the king bolt or the yoke clamp must be stripped. What can be done to fix the loose yoke? Can I still find replacement parts? Or do I have to have them fabricated? Has anyone ever had to make a new king bolt and yoke clamp assembly? Or is this RAS toast?

-- Jim246, Wisconsin


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Jim246

2 posts in 1227 days


#1 posted 07-24-2013 10:28 PM

After unscrewing the yoke clamp handle last night, and removing the winged adjuster washer and king bolt, my worst expectations were realized. Both the yoke clamp jam nut and the king bolt threads were stripped. And the tab on the adjuster washer that fits into the slot on the king bolt was broken off; but it could still rotate on the king bolt and strip its threads even more. No doubt this contributed greatly to the failure of the threads on this rather poorly designed tightening assembly. I’ve since located the correct jam nut, and my next mission is to find or make a new king bolt. The DeWalt customer service and parts people, a DeWalt Service Center and 2 other DeWalt parts suppliers have the same sad story that the needed parts are no longer available for this model, so I’m on my own, unless one of you readers has a better idea.

I’m now thinking that I should just tighten this whole roller head/yoke thing down in the straight cross-cut position and forget about using the rip feature of this saw, unless I want to go to the trouble of loosening the replacement king bolt, rotating the yoke 90 degrees and tightening it down again for the ripping job. Yeah, I know, probably not worth the trouble.

-- Jim246, Wisconsin

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