Hi Guys & Gals,
Final Step Jaw attachment
This was by far the most difficult part of this project. The goal is to attach the jaws so they are tight and both pins share the load. Each jaws has two .205 holes that mate up with two holes in the casting that seem to be about .202in. So I am assuming they left the factory with tapered pins. I have measured pins removed from other Chas Parkers and they seemed to be tapered. This vise however, had coiled spring pins, which I thought was a good idea. I don’t think they were the factory pins but I wanted to use them. Unfortunately I was unable to find coiled spring pins in this size. The closest is 7/32 which is very hard to find at a local hardware store. I am going to order some online soon so I can try them next time. I used a #3 tapered pin. Photo #1 shows the #3 X 2inch long tapered pins. The large end of a # 3 tapered pin is always .219 no matter what the length is. This was my starting point. Photo #2 shows the pins finger tight. This is why I got the 2 inch long pins because I am going to use the middle part of the pin. (The part that is tapered in the .202 - .205 dia. range.) You can see on the jaws I decided to leave the “battle scars”. I could have fixed this with the belt sander but I thought it was better to leave the evidence from the previous workers that used this vise to do a job. Photo #3 -Two pins fit perfect and two pins needed a little diameter adjustment on the belt sander so they could be tight in both the jaw & casting. This is a slow trial and error fit up and I barely touched the belt with the pin as to remove only a little at a time. Sorry I have no photo but when the pins stuck up above the top of the jaws about ¼ inch, then I hammered in the rest of the way. I hammered until they were flush with the jaw. On one I stopped because the pin started to mushroom on the top. I stopped hammering and ground it flush with the jaw. Photo #4 & 5- shows underneath the jaw where I took a die grinder and carefully ground flush the rest of the pin that stuck down. In the end, the jaws are tight, the pins are tight, 3 of the 4 pins on the top of the jaws are flush and one is a little below the jaw. ARRGH .. I am so bummed I think it looks best with all 4 pins flush. I might do this one over next week. There must be a better way to do this. Of course I always had in the back of my mind don’t hammer too hard and crack the casting or jaw. That didn’t happen so I really have nothing to complain about.
Next post will be the beauty shots.
Take Care,
Greg