Is there a diagram of the chuck available
Here is a breakdown. https://www.ereplacementparts.com/makita-hr3000c-rotary-hammer-parts-c-97_380_507.html Here is the page of the manual that deals with bits http://powertool.manualsonline.com/manuals/mfg/makita/hr3000c_2.html?p=7
SOURCE: drill bit is stuck inside my makita drill chuck
Try using the low torque setting on the drill when reversing and something to assist you getting a better grip to hold the chuck from spinning when reversing. This may help.
Good Luck
SOURCE: Stuck chuck
open the chuck all the way, insde there may be a screw in the bottom it's lefthand thread turn it clockwise to remove, the chuck is also threaded, right hand thread. close the jaws on the short end of an allen wrench and strike the long end with a hammer to break it free
SOURCE: Bit stuck in Bosch PS20 keyless chuck
These units have only been out for a short while and most are on warranty. Take it to a Bosch Service center in your area and they will replace the front of the unit. Unfortunatly this is a problem with this type of unit. The bit will deform slightly from the impacting action and lock itself in the chuck.
SOURCE: sds drill stuck in chuck
tap it lightly with a ball pin hammer, if that dosnt shake it out try opening it and useing something to push it through
SOURCE: A bit is stuck in the chuck of my Bosch drill
Hello. Wrap a towel around the chuck and use a pipe wrench or a pair of channel locks to put a little force on the chuck. J.
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