Hitachi DH 22PH, Технические данные и руководство по обслуживанию, Страница: 26 / 39

-23-
Fig. 21
3. Press-fitting the First Gear
Press-fit the First Gear [46] while aligning it with the end face of the Second Shaft [44] . After press-fitting
the First Gear [46] , check that the inner ring of the Reciprocating Bearing [45] can rotate smoothly.
4. Attaching the Oil Seal
When reassembling the Oil Seal [12] , apply grease to inside of the Oil Seal [12] . However, do not apply
grease to its periphery. Press-fit the Oil Seal [12] while being careful not to tilt it.
5. Reassembly of the internal pressure regulating mechanism
Push the Felt Packing (A) [49] , Valve [50] and Felt Packing (B) [51] in this order into the Inner Cover Ass’y
(A) [52] so that all are tightly fitted in place.
6. Mounting the Piston
Mount the Piston [35] as shown in Fig. 22.
Felt Packing (B) [51]
Valve [50]
Felt Packing (A) [49]
Inner Cover Ass’y (A) [52]
A - A
Inner Cover Ass’y (A) [52]
Piston [35]
O-Ring (A) [34]
Striker [33]
Second Shaft [44]
Reciprocating Bearing [45]
First Gear [46]
Washer (B) D12.5 [47]
Fig. 22