Panasonic 6810 electric hammer
Internal water is rusted, lubricating oil is dry and cracked, and wires are broken
Completely disassemble, re-derust, replace bearings, and refill with new lubricating oil. The broken circuit was repaired, the switch was disassembled and cleaned and reapplied with lubricating oil.
The original machine is a nickel-cadmium battery.
It has been a long time since I couldn't find a suitable battery case, so I changed it to the same interface as Makita, reassembled a 24V lithium battery, and used six sets of 18650 batteries in series.
After restoration, the appearance is very new, and the hammering force of the machine is very strong.