My te 706 works, but doesn't hammer. what might the problem be?

SOURCE: te-5 rotary hammer i need parts

Call Hilti direct at 1-800-879-8000 and speak to them. They can fax or ssend you a breakdown of the tool list. They will also sell you parts. I don't know of an outside source for Hilti parts. If I have helped you would you please rate my response accordingly and Thank you.

SOURCE: Hilti TE 12. It will not hammer.

the rotory cam has been broken inside if not producing the hammer effect

SOURCE: I have a hilti TE

The hammering action is caused by air cushion between driver piston and striker piston.
A lack of lubrication will cause this or too much grease has entered cylinder or hammer is stored with nose of hammer up. To much, or little grease, or old dirty grease will cause poor hammering action because the striker piston cannot move all the way to front of cylinder (when you slam tool against the work, you are actually forcing the striker closer to the bit). Clean both pistons and apply fresh grease, also make sure orings on these pistons are in good order. If you think that the grease is ok, then try storing the hammer with nose down and bit removed so that the striker will creep down when still hot and be in the right position for next use /cold start. Good luck

SOURCE: I have a TE 74 and it has just stopped hammering, the motor still runs ok but no hammer action, any suggestions?

could be quite a few things. e.g. stuck ram worn o rings and seals. I would suggest calling Hilti direct at 1-800-879-8000 for a service center nearest you. These are not the most user friendly tools to repair. It can be done but trust me it is a pain.

SOURCE: Brand new te-7c and hammer

Mine does the same thing sometimes. Especially when it sits up for a while. What I've done, and it's worked every time, is bang it straight down on a block of wood a couple times nice a hard, then it works perfect. That pneumatic piston in there might just be hung up or something. Give it a shot.