Re: Bosch CSB 850-2RET hammer drill
I repaired a Bosch hammer drill recently which had all but seized solid. On examination, the field permanent magnet segments had become unstuck from the yoke, resulting in a virtually locked armature.
Fairly strong measures were needed to unstake the yoke from the brush plate in order to withdraw the armature. The yoke bore and magnet segments were then cleaned up and re-assembled with warmed long set Araldite, paying careful attention to the magnet indexing relative to the brushes. Some jigging was needed to hold the magnets correctly during adhesive curing.
The job was a complete success - but took some time.
Leon.
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