20 Most Recent Hilti TE 1000-AVR Demolition Hammer Package, 3450921 Questions & Answers

if the service light is on check this video, https://www.youtube.com/watch?v=kpcdYreqc5I

A dangerous work wear safety glasses and a leather apron because there could be metal pieces come off the parts , make first the part the disassembled toolholder hot with a large gas burner and in a bench vise with a hammer Interim anything like WD40 spray. sometimes it could be a long prolonged work if you have inserted an invalid chisel.

Go to the hilt I web site, it will give nearest service centre. If under warranty just call them.

You'll have to call Hilti for that. They're very protective of their material. But I think they'll still fax you a schematic.

Did you oil it?

go to Hilti.com or call them direct at 1-800-879-8000 and they can help