I rebuilt my Bosch GBH 2-24DFR and found 2 faults - the mains lead had
an intermittent connection near the drill and the drill/hammer/
rotation-stop switch was dodgy (on my drill this is a purely
mechanical switch sliding an internal cam around).

I found a schematic of the drill internals here http://www.raidiy.com/
(under "spares") though they have recently changed the design of the
website.

I didn't need any specialist tools - but the mechanical internals
weren't the simplest to get back together.

In fact, I've just remembered I wrote this up properly when I did the
repair - see last post in the thread:

http://groups.google.com/group/uk.d-...3cf10d3f 470c