Hitachi DH 24PC3 Technical Data And Service Manual page 34

(3) Reassembly of the change lever
Press the Pushing Button [18] deeply into the hole of the Change Lever [21]. Adjust the Change Lever [21] to
the position shown in Fig. 23 of the Gear Cover Ass'y [10] and press it hard. Then move the Change Lever
[21] to the "hammering only" position (
(4) Press-fitting the first gear
Press-fit the First Gear [54] aligning with the shaft end surface of the Second Shaft [52]. After press-fitting
the First Gear [54], check that the inside ring of the Reciprocating Bearing [53] turns smoothly.
(5) Reassembly of the oil seal
Prior to reassembly, apply grease to the inner circumference of the Oil Seal [12]. However, do not apply
grease to its outer circumference. Also, when press-fitting the Oil Seal [12], ensure that it is straight and level.
(6) Reassembly of the internal pressure adjustment mechanism
Push Felt Packing (A) [44], Valve [45] and Felt Packing (B) [46] in the Inner Cover Ass'y [41] as far as they
will go in this order.
Felt Packing (A) [44]
mark).
Change Lever [21]
Felt Packing (B) [46]
Valve [45]
Pushing Button [18]
Fig. 23
Inner Cover Ass'y [41]
Fig. 24
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