Miter gauge question

ldh · Post by **ldh** » Wed Jan 30, 2008 11:53 am

eldyfig,
I am curious as to the reference number of the NYLOC SCREW that you are referring to when you said on reassembly you could not get the miter gauge protractor to move. What was the part number that you had to order from Shopsmith?
ldh

eldyfig · Post by **eldyfig** » Wed Jan 30, 2008 11:59 pm

282 is the reference nmber. When I removed the screw and washer, there was what I thought was crud in the threads and some on the washer. Looked to me like compacted wood dust. I cleaned in all off the screw and washer and out of the hole. Put it all back together. Screwed it too tight, the protractor wouldn't move. Loosened the screw a little. It was ok for a couple of changes in the protractor angle. Kept moving the protractor back and forth and the screw worked itself tight again.

Part number was 501639.

Tony

ldh · Post by **ldh** » Thu Jan 31, 2008 1:42 am

Eldyfig,
Now I know what you are talking about. The part you ordered will no doubt solve the problem, but I have found that if I place a small drop of blue loctite on the threads (part 282) and adjust the screw for proper protractor movement then let the loctite set up it will remain in adjustment and I don't have to replace the screw with a new one. Hope this is helpful to you.
ldh

eldyfig · Post by **eldyfig** » Thu Jan 31, 2008 1:23 pm

I have some 271 red loctite would have probably worked.

Nick · Post by **Nick** » Thu Jan 31, 2008 1:46 pm

Warning: DON'T USE THE RED LOCKTITE! Once set, the screw can only be removed by an Act of Congress.

With all good wishes,

ldh · Post by **ldh** » Thu Jan 31, 2008 2:29 pm

Nick,
I should have told the member that RED LOCTITE does not even belong in the same room with a Shopsmith. Sorry
ldh

james.miller · Post by **james.miller** » Thu Jan 31, 2008 4:56 pm

My experience with Blue Lock-Tite and most Aluminum alloys is that eventually it becomes permanent and you can't get it apart without stripping the aluminum threads at best. Don't know about the particular alloy
SS uses but I don't want to take any chances.

ldh · Post by **ldh** » Thu Jan 31, 2008 8:36 pm

Jim,
Have used blue loctite on Shopsmiths for several years and never had a thread stripping problem. Perhaps I have been lucky, but I have always tried to give my Shopsmiths a kind and loving home.
ldh

james.miller · Post by **james.miller** » Thu Jan 31, 2008 8:56 pm

Must be that SS alloy works with Loctite. The pieces I have had trouble with were not SS. They freeze together after several months of being assembled almost like they were cold welded. The disclaimer at the end of their data sheet is interesting http://henkelconsumerinfo.com/products/ ... _CA_EN.pdf

Actually this is the data sheet I should have put first, this is under disassembly procedures on page 3. In rare instances where hand tools do not work because of excessive engagement length, apply localized heat to nut or bolt to approximately 250 °C. Disassemble while hot https://tds.us.henkel.com//NA/UT/HNAUTT ... 243-EN.pdf

ldh · Post by **ldh** » Thu Jan 31, 2008 10:45 pm

Jim,
A steel bolts into aluminum threads is at best not a great idea. Many applications require Anti-Seize compounds. Like I said, I have probably just been lucky. A few months back I was upgrading an old SS bandsaw and found one of the Eccentric Mounting Tube set screw seized and ended up having to over size the hole and tap for a 3/8 set screw. It just seemed to be the natural oxidation of the aluminum reacting with the steel that caused it to seize.
ldh