Hammer Drill model KD350RE 520Watt Drill/Chuck slips under load, this is no drillslipping in chuck jaws. can it be repaired

SOURCE: makita 8444d mxt drill

what is the setting in your clutch. if you set the clutch to the highest setting and it`s still slipping then you need transmission assy.

SOURCE: drill chuck swap

1. Turn the screw clockwise to take it out.
2. Then you needs 3/8 allen key & insert the short side of the allen key & tighten the chuck.
3. hold the drill at the edge of the table & wack the allen key
counter clockwise & do it again as needed.
4. dewalt keyless chuck will fit but you might add a washer to insure the chuck is not rubbing the clutch collar.
5. putting it back together the other way.

SOURCE: Sir, I have a Powerbase Xtreme Rotary SDS 1200W

http://manuals.syntigroep.nl/manuals.htm
have a look here, they have just about every owners manual on the planet

SOURCE: bosch keyless chuck stuck

Make sure you try it in both directions.

SOURCE: How do you replace the chuck on a Bosch 650 RE

while holding the drill like a gun, hold the lock button REALLY tight and pull the black part to the right really hard. this will unlock the chuck and if you keep twisting the black part to the right it will loosen it enough so that you can remove it