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This is an old Bosch GSH 4 Hammer. A very good hammer they where. Small, light, powerful and reliable.
The little brother to the GSH 11 E hammer.
They always had a common fault where the connectors of the field would break, but not this time.
eventually had to strip everything down to identify the problem as the speed controller.
luckily a second hand controller soon sorted it out.
#tools #repair #powertools #toolrepair #deandohertygreaser #fix #makita #howto #machine #diy #bosch
