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Reply by teejk02

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Posted on Screwed (Quite LIterally) By Delta - Once Again

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teejk02

501 posts in 1542 days


#1 posted 08-21-2016 11:12 PM



A partial update from Kalamazoo:

Grinding down wrenches or vise-grips may be the only way to go. I bought yet another 8mm open end wrench and it would not remove the stuck bolts. I did try a pair of needle-nosed vise-grips, but they would not grab well enough. So…. as I did once before, I cut the heads off two screws. This time I was able to use a Dremel tool and the job went much faster. I was able to get all of the rest of the screws out, but a few were damaged in the process. I had enough good screws to combine with the leftovers I had from my last experience to make a full set. Cleaned everything up, installed the new knives (with anti-seize compound!!!) and buttoned it up. The new knives required a major adjustment since they were a bit wider than the Delta set in the jointer. All is well and the jointer is working again. I will “get to work” once again.

However….. what about the next time? I visited Loews, Menards, and two well stocked hardware stores today. There is nothing like the original screws available. It turns out that both MrUnix and I are both correct on our own parts of the dimensions. The threads are 1/4 – 28 AND the hex head is an 8mm metric! Very strange. The length of the screws is not any common fraction of inches and is not an even number of millimeters. The head of the screw is crowned so that only the center point makes contact with the wall of the groove in the planer head when you tighten it. I would imagine that the clamping bar would tend to move around as you tightened screws with flat heads that were contacting a larger surface. AFAIK these screws are not a common item of commerce and were custom made for the purpose (AND for a long list of other Delta jointers). Now they are no longer available. The only recourse seems to be grinding down some screws to make them fit. Screwed again? I will leave that decision up to you.

I intend to visit Fastenal this week to ask them, but I have been on their website and there is nothing remotely like the needed screws. I will let you know what they say.

Note to RickM. Your comment about ditching all of my Delta machines strikes home. I was a hard core Delta fan with a contractor s saw, planer, two dust collectors, jointer, band saw, drill press, miter saw, and a host of accessories. I have had an increasing number of issues due to ageing machines and the fact that many (most?) Delta parts are no longer available. Several jerry-rigged repairs. The table saw was the first to go. I gave it to the guy who has done most of the remodeling work on my house in exchange for his crew getting my SawsStop safely into the basement. The planer went to a friend who is new to woodworking when I got a Dewalt 735. I got two nice bottles of wine for it. The rest will slowly be replaced as needs be. I did quit buying Delta and have moved to other brands.

- Kazooman

I goofed on my earlier reply (been a long time since I changed knives on my Delta 37-190…I’ve learned to treat them like a rare jewel). The first time I did it I knew that that cheap wrench was not going to work…not only did it not grab enough of the head, it was way to short to provide any meaningful leverage (they are “tight” for a reason, probably dictated by their legal dept. The internet is full of complaints about trying to remove the fasteners from the lunch-box planer knives). Like any bolt or nut I STOP if there is any slop between the head and the wrench. Lucky for me I had the correct wrench from an old Honda motorcycle and that’s what I have used ever since. But back to the replacement…these 6” jointers all seem to be the same other than color…have to wonder whether Jet or ShopFox or Grizzly uses the same bolt.


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