Hitachi H 25PV Technical Data And Service Manual page 15

Cylinder case and cylinder disassembly
Remove the Seal Lock Hex. Socket Hd. Bolts M6 x 22 [10] fixing the Cylinder Case [9], then the Cylinder
Case [9] can be removed from the Crank Case [46], and the Thrust Washer [25] and Spring (A) [22] can be
removed between the Crank Case [46] and the Cylinder Case [9] (Fig. 11).
The Cylinder [24] can be removed from the Cylinder Case [9] by pushing the Cylinder [24]. Remove the
Retaining Ring for D28 Shaft [13] from the Cylinder [24] by means of a snap ring remover, then the Cylinder
Holder [15] can be removed from the Cylinder [24]. Remove the four Needle Rollers [18] then remove the
Needle Holder [17], Needle Cover [19], Slide Sleeve (B) [20] and Slide Sleeve (A) [21] (Fig. 12).
Cylinder
Retaining ring
for D28 shaft
Cylinder holder
Cylinder case
Fig. 11
Needle holder
Needle roller
Fig. 12
Thrust washer
Spring (A)
Needle cover
Slide sleeve (B)
--- 12 ---
Slide sleeve (A)
Cylinder