I just picked up a Delta 14-650 hollow chisel mortiser to facilitate construction of a run of 20 chairs I have to build this spring. I bought the display model from the dealer’s floor at a 50% discount and need to replace a few missing pedestal bolts.
I can’t find a matching thread. I’ve tried 5/16″ NC, 5/16″ NF and M8 – 1.25 pitch. I can only get a thread or two engaged before the bolt locks. Thread count on the bolts looks like the M8 – 1.0 pitch won’t work either.
Anyone know what thread standard the offshored Delta products use?
Edited 1/21/2008 12:54 am by observer
Edited 1/22/2008 12:23 am by observer
Replies
This might help.
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It would indeed be a tragedy if the history of the human race proved to be nothing more than the story of an ape playing with a box of matches on a petrol dump. ~David Ormsby Gore
If you haven't already done so, go to Delta's website and get the owners manual(s) for your mortiser. They're usually free in a pdf format and will have parts info - including buying information and service/repair shop locations. The service/repair shop list may (or may not) be accurate depending on the age of your tool.
The parts breakdown does not give the thread pitch but if it is a M8 the normal pitch is 1.25mm. If you tried to determine the screw/bolt size using various taps you could have messed up the first couple of threads. If you want to find the correct fastener locally try Lowe's as they have a fair amount of common metric fasteners.
Life is what happens to you when you're making other plans .
Most metric bolts come in fine and coase pitch thread variants.
You can always re-tap to a slightly larger imperial thread.
Many thanks for the answers and particularly the parts diagram and list as this package only included the machine shy a few bolts, the holddown parts that I have no need of and the paperwork.I did attempt a download of the manual, but Delta sends me to the Dewalt servicenet who deny existence of any such machine and don't give me the option of searching in their files for it myself. Useful as teats on a bull.I've tried actual bolts rather than using a tap to determine what fits. Since they are listed as M8, convention says they should be the coarser of the two metric pitches, the 1.25 or 8 thread/cm but those don't fit.It is possible that either the bolt or casting is poorly threaded. Since the listed size is confirmed as M8, I'll try tapping to that spec. No doubt that will sort it out.Once again, I appreciate the help.
Edited 1/21/2008 12:14 pm by observer
observer,
From actaul experiance if you phone Delta things are worse. I used to be a loyal Delta buyer but my experaince was so bad , so painful I switched to Grizzly and have been happy ever since..
Turns out the threads are indeed M8-1.25 (coarse) pitch. They just needed to be chased.Frenchy, I never expect helpful post-sale service. I concentrate on making sure the machine is sufficiently well designed, built and serviceable prior to purchase and do all my own maintenance and modification post-sale. I've ended up with a lot of Delta simply because I've obtained some extremely good pricing on it. For all the Ford/GM/Chrysler type brand arguments, I've found no one brand is reliably and consistently better than any other.
Observer,
There is probably a great deal of truth in what you say, however in the Ford Chey Dodge debate there is always a few neutral observers who's opinion is well respected.. Consumers report and such,....
Since we are without such a source in our wood working hobby you'd need to rely on these pages here to provide you with an answer. Grizzly is pretty well thought of here. You and I have both exprerianced the pain of Delta.I'm hoping the price you get on Delta is low enough to deal with the difficulty of Delta.. I found that not to be the case and I switched to Grizzly and my switch was made not because because the price was dramtically lower than I could get Delta's stuff, ( I could buy Grizzly a lot lower) but because those who had purchasd it spoke so highly of the company..
None of my Delta or non-Delta equipment has caused me any problem I couldn't quickly solve with the help of my own tools, experience and a local bearing supplier. It's all been picked carefully. My local tool supplier carries a big enough inventory that I can thoroughly examine competing brands and do a cost/benefit tailored to my particular circumstances. You've got your way, I've got mine.James, I'm on Vancouver Island.
Frenchy: I've had just the opposite w/ Delta. Had a problem w/ my TS, they came to my house w/i a week & fixed it. (It wastill under warranty by just a month) Had another problem w/ OSS motor heating up, their service center put a new capacitor on the motor for a few $, good as new. Go figure????
James
I too have had a good experience with Delta Industrial although I have not had a need for service. I have a 5 horse unisaw, 3ea. 5 horse shapers, the big oscillating belt sander, a couple of power feeds, the line drill, 14 inch bandsaw, 18 inch bandsaw, mortising machine, 8 inch grinder,sharpening machine and two lathes. Not a problem so far.------------------------------------
It would indeed be a tragedy if the history of the human race proved to be nothing more than the story of an ape playing with a box of matches on a petrol dump. ~David Ormsby Gore
Where are you located?
James
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