Hitachi CM 4SB2 Technical Data And Service Manual page 16

(7) Disassembly of the Armature [46] (Fig. 8)
1 Secure the Armature [46] and loosen the Special Nut M7 (right-hand thread) [42] to pull out the Pinion [43].
2 Remove the Ball Bearing 629VVC2PS2L [44], Washer (A) [45], Ball Bearing 608VVC2PS2L [7] and Dust
Seal [6] from both ends of the Armature [46].
(8) Disassembly of the Handle Cover [9] and the Switch (1P Screw Type) [11] (Fig. 9)
1 Remove the three Tapping Screws (W/Flange) D4 x 20 (Black) [14] and remove the Handle Cover [9] from
the Housing Ass'y [13].
2 Loosen the small screw of the Switch (1P Screw Type) [11]. Then the two internal wires coming from the
Stator Ass'y [4] and the two internal wires coming from the Cord [28] can be disconnected and the Switch
(1P Screw Type) [11], Switch Rubber Cover [10] and Noise Suppressor [22] can be removed from the
Housing Ass'y [13]. Remove the two Tapping Screws (W/Flange) D4 x 16 [25], Cord Clip [26], Cord [28]
and Cord Armor [27] from the Handle Cover [9].
3 Remove Rubber Cover (B) [8] from the Handle Cover [9].
[4]
[43] [44] [45]
[42]
[10]
[9]
[8]
[46]
Fig. 8
[11]
[25]
[22]
Fig. 9
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[6] [7]
[13] [14]
[26]
[27]
[28]