Question about Drills
Had to open drill to remove a stuck chuck but 2 small steel cylinders/pins or rollers about 2mm diameter x8mm long fell out any ideas
I answered this on a different post, Have taken apart the makita bhp 451 hammer drillHope this helps.
Posted on Feb 02, 2013
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Posted on Jan 02, 2017
SOURCE: chuck change
open the chuck fully and remove the scre inside by turning clockwise. insert allen short side in to the chuck & tighten
the chuck. hold the drill & hit the allen counter clockwise & do it again as needed.
Posted on May 29, 2008
Put the chuck key on and strike it with a hammer counter clockwise. the chuck key must be properly seated in the hole. Once the chuck is brokrn free, you can unscrew it my hand. Buy a new chuck an screw it in olace and againm strike the key but no as hard clockwise. It will self tighten more as it is used, Good Luck-Ned-
Posted on Sep 17, 2009
secure the short end of an allen wrench in the chuck, making sure it is as tight as possoble. Useing a wood or hard rubber mallet strick the long end of the allen wrench so it turns counter-clockwise. This should loosen the chuck from the spindle enough that you can unscrew it by hand.
Posted on Feb 19, 2010
SOURCE: Broken Makita Drill 6408k chuck
If the chuck itself slips, you can tear down the outer layers (yes it is a bit brutal)
of the chuck until you reach the inner metal core. You can then try several things;
1 loosen it with a pipe wrench, provided you can get a grip on the axle of the chuck to counter the torque
2 Weld an allen key to the metal core of the chuck and use a firm rapid blow by a hammer to rotate it counterclockwise
3 Dismantle the final shaft with the chuck core, and set it in a vise with aluminium plates to protect it, while you turn the chuck with a wrench or pliers.
4.If there is no senter lock screw inside the bottom of the chuck it may be fitted with a thread locking compound. It will loosen easilier if heated with a heat gun or moderate gas heat.Only supply just enough heat to loosen it, or the hardening of the steel may be compromised.
Posted on Dec 02, 2010
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