Question about Hitachi Drills
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Posted on Jan 02, 2017
On most sds drills the movement of the beat piece inside the piston cause then to vibrate, even at slow speed, this is normal, the most speed the louder the noise and vibration., note: is not a grinding noise, it should be a smooth nocking constant sound, as so the vibration.
Posted on Sep 26, 2009
Sorry I couldn't be of more help. I've looked at about every DV 20 version parts list and cannot find a part 16 that would create any difficulty in removing. All are either gears, pins, or the plate that goes under the switch. from the way you are describing it it sounds like the only possibility would be the Model DV 20VB which has a spindle which has to be unscrewed from the drill chuck it is held in by a retaining clip that you would need retaining ring pliers to remove.
Posted on Feb 11, 2010
The difference is the working action. SDS drills use a corrugated cams running against each other.
Posted on May 30, 2012
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