Hitachi C 7D, Техническое и сервисное руководство

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(4) Removal of the Armature Ass'y DC 24V [44]
First, remove the two Brush Caps [50] and take out the two Carbon Brushes [49].
The Carbon Brush [49] can be easily taken out by hooking the protrusion of the Carbon Brush [49] with the tip
of a flat-blade screwdriver as shown in Fig. 2. Remove the Retaining Ring (E-type) for D9 Shaft [70]. Slide
the Clamp Lever [71] to avoid contacting the protrusion (A) of the Clamp Lever [71] with the protrusion (B) of
the Handle Cover [28] then turn it. Remove the Clamp Nut [72], two Washers (S) and Bolt (Square) M6 [20].
Then, loosen the three Machine Screws (W/Washers) M5 x 45 (Black) [27], and separate the Gear Cover
Ass'y [3] from the Housing [34]. The Armature Ass'y DC 24V [44] will remain within the Housing [34]. With a
wooden or plastic hammer, tap gently on the outside of the Housing [34] to loosen and remove the Armature
Ass'y DC 24V [44]. At this time, be very careful not to hit the fan on the Armature Ass'y DC 24V [44].
(5) Removal of the Base Ass'y [62]
Extract the Roll Pin D6 x 40 [63] which connects the Base Ass'y [62] and the Housing [34], and separate
them.
Fig. 2
[34]
[49]
[47]
Protrusion
Fig. 3
[71]
[72]
[73]
[20]
[34]
Protrusion (A)
Protrusion (B)