Hitachi DV18DL - 18V 3.0Ah Lithium Ion Cordless Hammer Drill Service Manual page 28

(c) Mounting the Click Spring [12] <12> and the Front Cap [4] <4>.
Mount the Switch Plate [5] <5> aligning with the projections of the Front Case [11] <11> as shown in Fig. 4.
1
2 Mount the Click Spring [12] <12> to the Front Case [11] <11>.
3 When the Nut [6] <6> is screwed in the Front Case [11] <11> about 1-11/12 turns (690û), the mark (i) of the
Nut [6] <6> and the marking of the Switch Plate [5] <5> are positioned as shown in Fig. 16. Set the
narrow slit of the switch flange as shown in Fig. 16. Mount the Front Cap [4] <4> aligning the narrow
projection of the Front Cap [4] <4> with the mark (i) of the Nut [6] <6>. (The narrow projection of the Front
Cap [4] <4> is positioned at "1" when viewed from the outside.)
Check that the protrusion of the Click Spring [12] <12> is inserted into the groove inside the Front Cap [4]
<4>.
Switch flange
Marking of the
Switch Plate [5] <5>
Narrow slit of
the switch flange
Mark (i)
(6) Reassembly of the main unit
(a) Mount the power supply unit and the drive unit that were reassembled in the above procedure to Housing
(A) [38] <38>. At this time, align the protrusions of the Brush Block [33] <33>, Front Case [11] <11> and
Motor Spacer [30] <30> with the concave portions of Housing (A) [38] <38>, the notch of the Magnet [32]
<32> with the protrusion of Housing (A) [38] <38>, and the groove of the Front Cap [4] <4> with the
protrusion of Housing (A) [38] <38> (see Fig. 17).
Protrusion
[33] <33>
Concave portion
[38] <38>
Switch Plate [5] <5>
[32] <32>
[30] <30>
Protrusion
Notch
Concave portion Concave portion
Protrusion
Wide slit of the
switch flange
Fig. 16
Protrusion
Protrusion
Fig. 17
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Narrow projection
of the Front Cap
[4] <4>
"1"
[4] <4>
[11] <11>
Groove
Concave portion
Protrusion