Hitachi DB 3DL Technical Data & Service Manual page 21

(7) Reassembly of the housing unit
(a) Mount the Click Spring [42] to Housing (A). (B) Set [32] so that the convex portion of the Click Spring [42]
can be seen. Apply grease (Hitachi Motor Grease No. 29) to the Click Spring [42]. (See Fig. 11.)
(b) Mount the LED to Housing (A).(B) Set [32] and fix the internal wires with the seal. Put the internal wires of
the LED between the ribs of Housing (A).(B) Set [32]. (See Fig. 12.)
(c) Mount the drive unit to Housing (A).(B) Set [32]. Put the internal wires of the LED and the Switch (W/Lock)
[40] through the rib of the housing in the order of red and black internal wires of the LED, then black and
red internal wires of the Switch (W/Lock) [40].
Wider protrusion
Nut [7]
Protrusion
Protrusion
[42]
Convex portion
The black internal wire
is positioned forward.
Indicated with "1"
Clutch Dial [6]
Concave
portion
Fig. 10
Fig. 11
Seal
Fig. 12
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Wider concave portion
Concave
portion
Rib
Red
Black
Rib