In this video I repair angle grinder BOSCH PWS 850-125. Despite the nice appearance the armature of the electric motor was defective. For rewinding I used thicker wire than originally mounted (diameter 0.355mm instead of 0.34mm). The free space in the armature grooves allowed me to do this. I also replaced the armature bearings that were loose. See what I got.
00:00 Check
00:11 Dismantling
01:38 Checking the stator
01:53 Motor armature check
02:09 Removing the winding pattern
03:16 Engine armature disassembly
06:09 Motor armature rewind
10:51 Shrink manifold
12:26 Engine armature impregnation
13:16 Motor armature balancing
14:29 Assembly
18:22 Result