Bosch PSB 1800 Li-2 Combi drill chuck stuck - two teeth out and one in

[DIY1st]

Hi everyone,
The keyless chuck of my bosch combi psb 1800 Li-2 is stuck. The teeth on the chuck (sorry dont know what they are called), were a bit out alignment but today it just got stuck when I was loosening it to replace a bit. Two of the teeths are out and the third seems to have fallen inside. I am attaching two pics. In the first one you can see a bit of the third chuck that is stuck inside. If I try to turn it, it turns a little in both directions but nothing seems to be moving. I can neither fully open or close it!

 

[Deluks]

Doesn't look good, the only thing I can think of is to try opening it in different orientations whilst jiggling it.
A fubar chuck can usually be replaced, but you need it open to get it off in the first place.

 

[ETAF]

maybe a light tap with a small hammer see if they drop back in

 

[jj4091]

Try jamming a flat screw driver blade in the jaws then gripping the handle witha a wrench and turnig the chuck body with a pair of pipe grips

 

[DIY1st]

Thank you, I used the screwdriver and then tapped with a hammer. It came loose, then just using my hands with a new pair of gardening gloves I managed to loosen it. It is working fine now. Also the jaws are closer to being fully aligned.