How do you remove a stuck bit in the chuck of a TE 17 Hilti hammer drill?

what you need to do is twist the collar of the chuck to remove bit and reverse the procedure to lock it into place.

With the palm of your hand over the chuck where the bit goes in take your fingers and pull the black sleeve right at the drill casing and pull towards your palm. After you have pulled it all the way back just pull the whole chuck off.

Have seen this problem with some 'none' HILTI bits which do not fit correctly into the SDS chuck.
Tends to be with larger drill bits which have a wider shank than the SDS connector, the wider shank hits the end of the drill nose which stops the end of the drill bit contacting with the internal hammer.
Solution is to purchase original bits from Hilti. If you have OEM bits and chisel it will be another problem. Hope this helps.

Grab the bit and see if it will move in or out of the chuck around a half inch. If the bit will not move at all inside the chuck at all. Lock the bit in a vise and strike the chuck with a rubber mallet. This will usually get the bit out.

Slide the collar on the chuck to the rear (toward the handle)

You should not have to grease The TE-7. It is permantly lubricated. You can occasionally put a small ball of grease on the end of a drill bit before you stick in the chuck. This will keep the chuck greased.

The TE-70 is permantly lubricated. You would only add lubricant if you took the tool apart. You can add a small amount of grease to the end of your bit occasionally before putting in the chuck. This keeps the chuck parts lubed.

Yes. New bits will fit old Hilti drills. Old Hilti bits do not fit the new (last 15 years) Hilti drills.

hi i have a 30 year old hilti te17, yes i know but its great but i need the bit holder ( chuck i think its called, the thing that hold the drill bit in for this hammer drill, otherwise its works perfect, built to lasst these things, but parts are hard to come by in aystralia, anyone help me if you can please
lulu

Probably a missing ball problem---contact Hilti website.