Hitachi DH 30PC2 Technical Data And Service Manual page 30

Retainer Sleeve [18]
(4) Mounting the Fan Guide [70]
Mount the Fan Guide [70] to the Housing Ass'y [106] being careful of the concave porrtion of the Fan Guide
[70]. (Fig. 28)
Concave portion
Sleeve (C) [20]
Retaining Ring D38 [21]
Crank Case [94]
Slide Ring [30]
Second Hammer [23]
Fig. 26
Crank Shaft [92]
Fig. 27
Fig. 28
--- 27 ---
Slide Sleeve (B) [33]
Slide Sleeve (A) [34]
Connecting Rod [45]
Housing Ass'y [106]
Fan Guide [70]
Cylinder [36]