Hitachi DH 24DVA Technical Data And Service Manual page 36

(3) Mounting Change Lever (A) [19]
Before mounting Change Lever (A) [19], reassemble the lock plate ass'y (Lock Plate [48], Second Pinion [43],
Clutch Spring [44] and Clutch [45]) as shown in Fig. 16-2.
Mount the lock plate ass'y to rails (A) and (B) of Gear Cover (A) [10] (Fig. 22). At this time, fit the Lock Plate
[48] properly in rail (A) and rail (B) as shown in Fig. 23 (A). Push in Spring (C) [47] and mount Change Lever
(A) [19]. When mounting Change Lever (A) [19], push in Change Lever (A) [19] strongly with the " " mark
pointed right below in the same manner as removal. Turn Change Lever (A) [19] within the range indicated
with an arrow mark in Fig. 24 and then tighten the Tapping Screw D2.6 x 10 [22].
Spring (C) [47]
Rail (A)
(4) Press-fitting the First Gear [53]
Press-fit the First Gear [53] aligning with the shaft end surface of Second Shaft (A) [49]. After press-fitting the
First Gear [53], check that the inside ring of the Reciprocating Bearing [51] turns smoothly.
(5) Reassembly of the oil seal
Prior to reassembly, apply grease to the inner circumference of the Oil Seal [11]. However, do not apply
grease to its outer circumference. Also, when press-fitting the Oil Seal [11], ensure that it is straight and level.
Rail (B)
Fig. 22
Mounting position
Fit in rail (A).
Fit in the inside of
Spring (C) [47].
Fig. 23 (B) Mounting direction
Tapping Screw D2.6 x 10 [22] tightening position
Fig. 24
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Fit in rail (B).
Fig. 23 (A)
Set the " " mark of
Change Lever (A) [19]
within the range.