Hitachi C 6DD Technical Data And Service Manual page 15

(5) Removal of the Armature Ass'y DC 18V [45]
First, remove the two Brush Caps [54], and take out the two Carbon Brushes [53]. The Carbon Brush [53]
can be easily taken out by hooking the protrusion of the Carbon Brush [53] with the tip of a flat-blade
screwdriver as shown in Fig. 2. Then, loosen the three Machine Screws (W/Washers) M5 x 35 [30], and
separate the Gear Cover Ass'y [3] from the Housing [58]. The Armature Ass'y DC 18V [45] will remain
attached to the Housing [58]. Then, gently tap the outside of the Housing [58] with a wooden or plastic
hammer to loosen and remove the Armature Ass'y DC 18V [45]. At this time, be very careful not to hit the fan
on the Armature Ass'y DC 18V [45].
(6) Removal of the Base Ass'y [69]
Extract the Roll Pin D6 x 40 [64], and disassemble the Base Ass'y [69] from the Gear Cover Ass'y [3].
[58]
[51]
Protrusion
Fig. 2
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[53]