Catalyze
Well-known member
Hello Cecil......the Parker 273 is a 5" width jaw vise. It is in the early Parker line of swivel jaw vises. I have a model 272 and here is a link to an article about freshening one up.
http://www.garagejournal.com/forum/showthread.php?t=98279&highlight=Parker
The U bracket was used on a lot of vises that had cracks in the main body to keep the pressure from the jaws pushing back and upward and widening the split. Yours might have been to keep pressure from pushing up on the swivel jaw in case it had some play in it or you may have a piece broken from the swivel jaw where it fits in the main body.
The Parker company had a pretty slick way of holding the swivel jaw in place.
1. Remove the U bolt
2. Remove the stuck jaw pin that sticks out the top of the swivel jaw
3. Remove the cross pin....this is the pin that has a round head on one side and fits flush in the body on the other...it runs across the main body just under the swivel jaw near the jaw face end of the main body..in this photo it is the polished round head pin sticking out the side of the body
View media item 8906You remove it by pounding on the other flat end of the pin
4. Once that pin is out...you remove the swivel jaw by lifting it straight up...there is a hole machined out of the center of the main body and that jaw drops straight down into it....the cross pin locks it in place...hopefully these photos will help you visualize it
View media item 8899View media item 8897
The Parker company is the only one that I have seen that put this much machining into a swivel jaw. It is a wonderfully tight and secure method but once it rusts into place.....the key word becomes "tight" and "secure"...LOL
Best of luck!!
Craig
http://www.garagejournal.com/forum/showthread.php?t=98279&highlight=Parker
The U bracket was used on a lot of vises that had cracks in the main body to keep the pressure from the jaws pushing back and upward and widening the split. Yours might have been to keep pressure from pushing up on the swivel jaw in case it had some play in it or you may have a piece broken from the swivel jaw where it fits in the main body.
The Parker company had a pretty slick way of holding the swivel jaw in place.
1. Remove the U bolt
2. Remove the stuck jaw pin that sticks out the top of the swivel jaw
3. Remove the cross pin....this is the pin that has a round head on one side and fits flush in the body on the other...it runs across the main body just under the swivel jaw near the jaw face end of the main body..in this photo it is the polished round head pin sticking out the side of the body
View media item 8906You remove it by pounding on the other flat end of the pin
4. Once that pin is out...you remove the swivel jaw by lifting it straight up...there is a hole machined out of the center of the main body and that jaw drops straight down into it....the cross pin locks it in place...hopefully these photos will help you visualize it
View media item 8899View media item 8897
The Parker company is the only one that I have seen that put this much machining into a swivel jaw. It is a wonderfully tight and secure method but once it rusts into place.....the key word becomes "tight" and "secure"...LOL
Best of luck!!
Craig
What would you have to pay for a new quality vise around 4"-5" in Croatia?


