Precautions In Disassembly And Reassembly; Disassembly - Hitachi S 15SB Technical Data And Service Manual

8. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY

The [Bold] numbers in the descriptions below correspond to the numbers in the Parts List and the exploded
assembly diagram for the Model S 18SB, and the <Bold> numbers to those in the Parts List and the exploded
assembly diagram for the Model S 15SB.

8-1. Disassembly

(1) Replacement of the armature and the lock lever
1. Remove the Brush Cap [33] <33> and remove the Carbon Brush [34] <34> from the Brush Holder [35] <35>.
2. Remove the Tapping Screw (W/Flange) D5 x 55 (Black) [7] <7> and the Tapping Screw (W/Flange) D5 x 35
(Black) [15] <15>. Remove the Armature [12] <12> from the Housing Ass'y [24] <24> together with the Gear
Cover Ass'y [8] <8> and the Inner Cover [9] <9>.
3. Remove the Gear Cover Ass'y [8] <8> from the Inner Cover [9] <9>.
4. As shown in Fig. 7, remove the Armature [12] <12> and the Lock Lever [11] <11> from the Inner Cover [9] <9>
using the J-130-2 Sleeve (Code No. 970908) and the J-131-2 Plate (Code No. 970910).
5. If the Ball Bearing 6000DDCMPS2L [10] <10> and the Lock Lever [11] <11> are remainded in the Armature
[12] <12>, remove the Ball Bearing 6000DDCMPS2L [10] <10> from the Armature [12] <12> using the J-30
Bearing Puller (Code No. 970804) and then remove the Lock Lever [11] <11>.
(2) Replacement of the Dust Seal [22] <22>
1. Insert the hooks of the J-204 Bearing Puller (Code No. 970982) into the clearances between the Ball Bearing
608VVC2PS2L [23] <23> and the Dust Seal [22] <22> at both ends and fix it with the bolt. At this time, be
careful not to insert the hooks excessively.
2. As shown in Fig. 8, put the J-204 Bearing Puller (Code No. 970982) on the J-130-2 Sleeve (Code No. 970908)
and push the armature shaft with a hand press to pull out the Ball Bearing 608VVC2PS2L [23] <23>.
3. Pull out the Dust Seal [22] <22> from the armature shaft.
Push
J-131-2 Plate
(Code No. 970910)
J-130-2 Sleeve
(Code No. 970908)
Fig. 7
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