Question about Bosch 1194AVSR 1/2" Vsr Hammerdrill

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Chuck on Bosch 1194 vsr drill is rusted... how to remove?

How do I remove the entire chuck? is it attached with normal threads or left hand threads? it is pretty rusted in place. There is a screw on some of the expanded drawings (but not on all of them)... that may hold the chuck on, but why then would the shaft be designed for using a wrench?

thanks!

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You are half right. The screw that you see is a chuck retaining screw (LH thread) to keep the chuck from loosening up when in reverse. What you need to do is if you have one remove it first and then find a bent handle allen wrench about the size of the chuck capacity, lock the shorter end in the jaws and then position the wrench at about a 30 deg angle and put the chuck on a block of wood or bench and take a hammer and hit it counter clockwise. If you have a wrench small enough to lock onto the spindle use it and brace it on the bench. If this tool has a high and low setting use the low and if clutch equipped the drill only. Let me know if you need more help

Posted on Jun 27, 2009

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Another Bosch drill, an old CBS 550-R, but same problem. As above, I hit the Allen wrench, while holding shaft with a 17mm wrench ground down to fit the 3/16th gap between chuck n drill head. Nothing gave! After clouting it several times with no gain, I lay the drill on a folded towel upon the kitchen floor, put right foot upon drill, put all of my 180 pounds on the 17mm wrench and right handed belted the allen wrench with a sguare faced four pound hammer against the clock and the flamer freed off. It took one hell of a wallop before freeing off. Best of luck to anyone with an old well seized chuck.

Posted on Sep 23, 2012

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Posted on Jan 02, 2017

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