How do you release the drill bit on a Wacker drill/hammer?
My friend is trying desperately to remove the bit currently in the tool so he can put another very large bit on (he's drilling through concrete). this is a very large, commercial type tool that also works as a jack hammer. he can't figure it out and is pretty much losing it at this point, complete with lots of obsenities being shouted. PLEASE HELP!!
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Push the rubber sleve off the drill bit and up the drill bit then the plastic ring. release the clip around the spindle. Slide the clip and chuck sleve forward and remove the ball sitting in the spindle. You should then be able to pull the bit from the machine. If it does not want to come hold the bit in a vice and tap the spindle off the end of the bit using a suitable punch. Rebuild chuck in reverse.
Without clarification on what is wrong with your tool I can quickly explain how to use it. The chuck has a locking sleeve with ridges on it. You pull it back and insert the bit then release the sleeve to lock in the bit. Behind that is a bigger sleeve. Turning the sleeve and then allowing it to come foward puts it in drill only mode. Pulling that sleeve back and turning it to lock it in puts it in hammer-drill mode. That is about it. A a dab of grease on the end of your bit occasionally to grease your chuck. Hope this helps.
If the chuck is too tight to get the bit out you can either put a glove on one hand
grab the chuck and run the drill in the reverse direction or if that
will not work use vise grips or a small pipe wrench on the chuck to
loosen it but be sure to tape the pipe wrench or vise grips with a thin
piece of duct tape so you don't gouge the drill chuck.
Most cordless drills use keyless chucks these days. Shift the drill into reverse and hold the main body of the chuck. Pull the trigger and the bit should come out. Put it into forward and run it to tighten onto a new bit.
If you are having trouble turning the chuck to remove the drill bit just wrap a cloth around it a couple of times and use a pair of adjustable channel lock pliers to give yourself a mechanical advantage. If you have loosened the chuck but can't remove the bit just clamp onto the bit with a pair of vise grips and tap them a few times with a hammer while a friend holds the drill for you.
put a box end wrench 7/16 or a 3/8 over the bit. put the bit in a vise. Lightly tap the wrench with a hammer while holding the relase sleeve back. usually need 2 people. 1 to hold the drill and the sleeve and 1 to hold the wrench and hammer. try a little tranny fluid or wd40 in the chuck. don't use the painted bits. use onle the chrome ones
Basically yes. Lower power units are usually titled as "hammer drills." Higher power units, usually labeled "rotary hammers," tend to be larger and provide bigger impact forces. But there are a few differences that are worth knowing: The rotary hammer usually have a chisel only feature, for light chiseling and masonry removal. Rotary hammers also have specially designed chucks that only accept bits specifically designed to fit their chuck. The special chuck on a rotary hammer helps hold the drill bit and prevents it from slipping during use.