Hitachi D 13VB3 Technical Data And Service Manual page 15

(4) Removal of the armature from the inner cover
As illustrated in Fig. 6, support the Inner Cover [12] <12> (12) with a tubular jig, and push down on the top of
the pinion of the Armature [24] <23> (23).
(5) Removal of the stator from the housing
First, disconnect the internal wires from the Switch [35] <34> (34). To disconnect the internal wires from the
switch, insert a small flat-blade screwdriver into the windows near the terminals and pull out the internal wires.
Remove the Hex. Hd. Tapping Screws D4 x 50 [26], D4 x 45 <25> (25) and tap the end surface of the Housing
[30] <29> (29) slightly with a wooden hammer. Then the stator can be removed from the housing.
Push.
Pinion
Fig. 6
--- 12 ---
Inner Cover [12] <12> (12)
Armature [24] <23> (23)