Question about Hilti Drills
I have had this drill for 15 years. Never a problem. Suddenly, after having used it for an hour straight (in normal mode), it no longer wants to hammer. Drill turns fine just pneumatics seem to have died. How can I get into the top part of the drill where the hammer assembly is? And what is likely to be wrong? Heat damage? Also, should the gearbox have oil or grease in it? Mine seems to be pretty dry! Thanks. Any help welcome.
It sounds like it's way overdue for a rebuild. That includes orings and grease and maybe brushes. Hilti.com should get you either a parts breakdown or a phone number to Hilti to see if you can still get parts.
Posted on Apr 22, 2014
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Posted on Jan 02, 2017
the grease is called turmoil grease and is somewhat expensive. This also requires just about complete disassembly of the tool and smoe parts replacement.
Posted on Dec 19, 2008
look at the back of the brush holder for a tab that the forward/reverse lever locks into, it might be broken not allowing it to shift.
Posted on Mar 03, 2009
Inside there is a little plastic shaft, where the selector hooks to. They have had problems over the years stripping. Replacement part is still plastic. Yay! You may need a bearing puller or find some way to get the clutch off the shaft. Lemme know. Please rate me
Posted on Jun 18, 2009
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