Hitachi C 12FSA Technical Data And Service Manual page 42

Disassembly
Item
No. spots
7
Armature ass'y,
stator ass'y,
housing ass'y
1. Disassembly of the Armature Ass'y
(1) Remove the Brush Cap [99], Carbon Brush [100] and four Tapping
Screws (W/Flange) D5 x 25 (Black) [135] to remove the Housing
Ass'y [101] from the Gear Case [140].
(2) Remove the Armature Ass'y [122] by gently hammering the Gear
Case [140].
2. Cut the internal wire of the Stator Ass'y [104] from the Controller
[110]. Then remove the two Tapping Screws (W/Flange) D4 x 16
(Black) [111] to remove the Controller [110].
Disassembly procedure
Fig. 65
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Necessary tools
Flatblade
screwdriver
Phillips
screwdriver
Plastic hammer
Phillips
screwdriver