Hitachi WH 14DM Technical Data And Service Manual page 22

Cordless impact driver
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(c) Mount a unit of the Inner Cover [25] (including the Armature DC 14.4V [26]), Magnet (C) Ass'y [27] (including
the Dust Guard Fin [28] and Washer (M) [51]) and Brush Block [29] into Housing (A) [35] (See Fig. 14).
Pay attention to the following items.
Adjust the protrusion of the Dust Guard Fin [28] to the notch of Magnet (C) Ass'y [27] when mounting the
Dust Guard Fin [28] to Magnet (C) Ass'y [27] (See Fig. 11).
Adjust the convex portion of Washer (M) [51] to the concave portion of Magnet (C) Ass'y [27] when
mounting Washer (M) [51] to Magnet (C) Ass'y [27] (See Fig. 12).
Insert the two Dampers [24] so that they fit into the Inner Cover [25]. Fit the locking rib of Ring Gear (C)
[21] to the concave portion of the Damper [24]. Press-fit the Armature DC 14.4V [26] into the Inner Cover
[25].
Adjust the convex portion of the Dust Guard Fin [28] to the concave portion of the Brush Block [29] (See
Fig. 11).
Adjust the notch (for locking) of Magnet (C) Ass'y [27] to the protrusion of Housing (A) [35] (See Figs. 11
and 13).
Position the plate of the Dust Guard Fin [28] under the rib of Housing (A) [35] (See Fig. 14).
Concave
portion
Concave portion
Brush Block [29]
Convex
portion
Projection
Fig. 11
Magnet (C) Ass'y [27]
including Washer (M)
Fig. 12
--- 19 ---
Dust Guard Fin [28]
Notch
Washer (M) [51]*
Magnet (C)
Ass'y [27]
* The Washer (M) [51]
will be informed on
Technical News at a
later date.
Convex portion

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