Rewinding Information
Copper wire 0.95 mm
12 Commutator bar
12 Stack teeth armature
10 turns for each commutation bar
Dc motor information
Voltage 20V to 40V
Noload current 6.5A (20V) 130W
Start current 18A (20V) 360W
Motorbike starter permanent magnet part
Key moments
00:04 circular saw disassembly
00:42 circular saw gear box Disassembly
01:14 circular saw motor removal
01:46 circular saw all parts show
01:57 plastic parts cleaning
02:16 armature disassembly
03:02 old commutator bar removal
03:20 old coil removal
03:44 new commutator bar Installation
03:55 armature rewinding process
07:46 armature short circuit checking
07:52 commutator bar continuity checking
08:12 armature gluing
09:33 armature balancing
11:09 permanent magnet installation
12:27 first test new DC motor with 20V
12:36 battery adapter installation
13:50 metal parts painting
14:31 gearbox installation
16:14 finish look
16:20 new circular saw weight
16:30 rpm measurement
16:40 power measurement
17:03 cordless circular saw cutting test

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Gear Show