Question about Hammering
Posted by Anonymous on
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Posted on Jan 02, 2017
Look around there for some O rings we have had this same problem with some of our Bosch hammer drills, and they usually replace a set of seals around the nose of the tool
Posted on Jul 06, 2009
Large hammers have an air driven piston (an air cushion betweem pistons) and an intermediate anvil that actually hammers on bit. If the cylinder and air cushion piston are dry there will not be enough suction/pressure between the driver piston and driven. Remove lower part of hammer and lube with electric hammer grease. Make sure that orings fit snuggly and the anvil is not jammed. Do not store hammer with the bit pointing up because the driven piston will slide down cylinder and hug driver piston. If the hammer was stored pointing up, turn hammer around and place in stand with nose down in a warm location so that the driver piston will drop into place. Good holidays
Posted on Dec 17, 2010
could be a few problems, the striker could be stuck from debris or the ram might be hydraulically locked. they make a rebuild kit for this tool if you are mechanically inclined. I would suggest first going to their site and downloading a parts breakdown and there you will find what is involved and the parts listing. It is "dewaltservicenet.com" and on the left hand side type in your model number and then follow the links to download this. Let me know if you need more assistance.
Posted on Apr 23, 2011
The gears inside that engage the chisel points to move back and forth are either not alligned properly or are stripped. You'll have to open up the hammer to see what, exactly, is the problem.
Posted on Sep 20, 2012
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