Drive dog frustration

[m4a1usr]

No argument, been using 45% silver for over 25 years in the commercial refrigeration business myself.

What a small world. I wonder how many other FE guys are/were refer mech's as well? I was refer mech for many years. High performance/ rapid temp change chambers. Cascade systems my specialty. Dont miss it with the exception of access to the gases for home/ car repairs.

John

[RIPFENCE]

Ground a flat in and blue loctited and it seems to be going good finally...i have one more handling issue i am going to start a new thread on...thanks for the problem solving

[Doug Smock]

That's cool John.
The vast majority of what I do now is medical. Bone, transplant tissue applications (cascade), blood bank, pharmacy, ice machines, and my personal favorite, morgue. I'll never get used to that, I guess I'm a wuss.LOL
I still do some food service, enviromental chambers, and warehouse stuff (colder than your mother inlaws love).
I enjoy it for the most part, but like every job it has it's days.

Doug

[Greg Schweers]

We all know the silver solder is going to go where the heat is, so that means the stub shaft and the drive dog are going to be cherry red hot. Personally, I'm going to have a problem putting that on my boat, knowing the stub shaft has been that hot. Like everyone else, I just take my 1/8" square file and put a flat spot on the stub shaft, and lock-tight. I, too, have done a lot of silver brazing, done a lot of medical gas, hundreds of split systems -- I was a plumber for 36 years, but the last 20 years was for a heating and cooling company. As you know, for a plumber to become a pipefitter, you have to have your brains kicked out first.

[Doug Smock]

Man, what a bunch of old Brazers.

Doug

[Jeepers]

We all know the silver solder is going to go where the heat is, so that means the stub shaft and the drive dog are going to be cherry red hot. Personally, I'm going to have a problem putting that on my boat, knowing the stub shaft has been that hot. Like everyone else, I just take my 1/8" square file and put a flat spot on the stub shaft, and lock-tight. I, too, have done a lot of silver brazing, done a lot of medical gas, hundreds of split systems -- I was a plumber for 36 years, but the last 20 years was for a heating and cooling company. As you know, for a plumber to become a pipefitter, you have to have your brains kicked out first.

are these silver soldered??? if so wouldn't they have to be red hot? I am sure you have used them on your boats.

http://www.offshoreelectrics.com/pro...prod=hug-b6666

[andym]

If you get your shaft cherry red then you are using to big a flame, Map gas is CRAP does not have the heat of acetylene therefore larger flame and longer heating times, this means a much larger heat affected zone. Small flame , intense heat used with control and precision works well. However if you like grub screw's that's great too.

[Jeff Wohlt]

Staybrite is also strong for silver solder....even plumbing solder is fine with some paste flux for drivedogs. Or a flat spot and be done. You can also drill them and pin them like Ed does.