Hitachi C 9U2, Service Manual

Page: 12 / 26

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Fig. 2
(2) Reassembling the Stator Ass'y [23]
To align each screw hole of the Stator Ass'y [23] and the
Housing Ass'y [65] accurately, insert the guide bar (J-132
stator press pins [special repair tool, code no. 970911]
are recommended) to press-fit the Stator Ass'y [23] to the
Housing Ass'y [65] as shown in Fig. 2. After press-fitting,
hook the Brush Terminal [22] on the Brush Holder [62] .
Be careful not to pinch the internal wire of the Stator
Ass'y [23] between the Stator Ass'y [23] and the seat for
the Hex. Hd. Tapping Screw D5 x 65 [34] in the Housing
Ass'y [65] . Secure the Stator Ass'y [23] to the Housing
Ass'y [65] with the two Hex. Hd. Tapping Screws D5 x 65
[34] .
(3) Reassembly of the Armature [25]
Prior to assembling the Armature [25] , ensure that the
Rubber Ring [36] is properly inserted into the groove of
the bearing case within the Gear Cover [28] . At this time,
be very careful not to damage the Rubber Ring [36] . Be
sure to mount the Bearing Bushing [32] and the Rubber
Bushing [31] to the Armature [25] before reassembly.
Do not perform reassembly with the Bearing Bushing [32]
and the Rubber Bushing [31] remained in the Housing
Ass'y [65] .
[23]
[61]
[22]
8-2. Reassembly
Reassembly can be accomplished by following the disassembly procedures in reverse. However, particular
attention should be given to the following items.
(1) Tightening torques for fastening screws and bolts
Machine Screws M4 [18] [21] [46] ........................................... 1.8 0.4 N
•
m {18 4 kgf
•
cm}
Special Bolt [16] ....................................................................... 1.8 0.4 N
•
m {18 4 kgf
•
cm}
Machine Screws M5 [10] [60] .................................................. 3.4 0.7 N
•
m {35 7 kgf
•
cm}
Seal Lock Flat Hd. Screw M6 x 14 [4] ...................................... 4.9 1.0 N
•
m {50 10 kgf
•
cm}
Hex. Socket Hd. Bolts M8 [20] [52] .......................................... 14.7 1.0 N
•
m {150 10 kgf
•
cm}
Tapping Screws (W/Flange) D4 [56] [70] [76] .......................... 2.0 0.5 N
•
m {20 5 kgf
•
cm}
Hex. Hd. Tapping Screw D5 x 65 [34] ...................................... 2.9 0.5 N
•
m {30 5 kgf
•
cm}
Screw of switches ..................................................................... 0.8 0.2 N
•
m {8 2 kgf
•
cm}
Screw of pillar terminal ............................................................. 0.35 0.1 N
•
m {3.5 1 kgf
•
cm}
Guide bar
(J-132 stator press pins)
Name plate side
[22]