Hitachi CR 18DMR Technical Data And Service Manual page 19

(6) Removal of the Gear [37] from the Gear Cover Ass'y [27]
Remove the three Seal Lock Flat Hd. Screws M4 x 12 [20] through the hole of the Balance Weight [36].
Then the Gear [37] (together with the Balance Weight [36], Spindle [23] and others) can be removed from the
Gear Cover Ass'y [27].
(7) Removal of the Gear [37] from the Spindle [23]
Hold at the width-across-flat portions of the Spindle [23] with a vise and remove the Nylock Hex. Socket Flat
Hd. Bolt M6 x 16 [29]. Remove the Balance Weight [36], Gear [37], Bearing Cover (B) [21] and Ball Bearing
6901ZZCMPS2L [22].
(8) Disassembly of the blade mounting section
Slide the Cap [11] (made of rubber) out of Lever (A) [12] with fingers horizontally. Remove the Special Bolt
M4 [10]. Then Blade Holder (A) [1], Lever (A) [12], Spring (D) [13], Holder Pin (B) [14] and Spring (B) [15]
can be removed from the Plunger [3]. At this time, be careful not to lose Spring (B) [15].
(9) Disassembly of the housing section
Remove the seven Tapping Screws (W/Flange) D4 x 20 (Black) [55] and Housing (A).(B) Set [46]. Then the
Pushing Button [52] and the power supply ass'y (DC-Speed Control Switch [53], Brush Block [44], Magnet
[43] and Terminal Piece [51] are mounted) can be removed.
[14]
[13]
[12]
[11]
[10]
[43]
[44]
[45]
[52]
[48]
[47]
[51]
[46]
[49]
[50]
[2]
[1]
[3]
Fig. 6
[54]
[55]
[53]
[57]
[56]
Fig. 7
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