This manual is a complete guide, including later additions. It has all the necessary information about the replacement items. The material quality is great to read.
Text excerpt from page 2 (click to view)
DISASSEMBLY ADVICE to replace SPRING ON / OFF SWITCH (4)
EXPLODED VIEW + PARTS LIST
2 1
7
to replace BATTERY (7) remove SCREW A
6
A
A 4 5 3
Pos 1 2 3 4 5 6 7
Description comb cutter cleaning brush spring on/off switch slide on/off switch battery NiMh battery NiCd adapter NiCd USA adapter NiCd CND adapter NiCd JPN adapter NiCd EURO adapter NiMh EURO adapter NiCd UK adapter NiCd Taiwan adapter NiCd Korea adapter NiCd Australia
Before reassembling the battery holder, make sure that the internal wiring is guided as shown in figure 1. After the product has been repaired, it should function properly and has to meet the safety requirements as laid down and offically established at this moment.