Precautions In Disassembly And Reassembly; Disassembly - Hitachi DH 30PC2 Technical Data And Service Manual

9. PRECAUTIONS IN DISASSEMBLY AND REASSEMBLY

The numbers in [Bold] correspond to the item numbers in the Parts List and exploded assembly diagrams.

9-1. Disassembly

(1) Disassembly of the retainer
As shown in Fig. 13, pull the Grip [2] fully in the arrow direction and remove the Front Cap [1]. (Pull the Front
Cap [1] strongly because it is made of rubber and fitted to the grip securely.) Then, the Grip [2] can also be
removed. Remove the Stopper Ring [3] with a retaining ring puller. The Ball Holder [4], two Steel Balls D7.0
[17], Retainer Spring [5] and Washer (D) [6] can be removed from the Retainer Sleeve [18]. (Fig. 14)
Front Cap [1]
Grip [2]
(2) Removal of the Cylinder Case [9] and Cylinder [36]
Remove the Seal Lock Hex. Socket Hd. Bolt M4 x 12 [56] of the Crank Case Cover [90] and the Hex. Socket
Hd. Bolt (W/Flange) M5 x 12 [50] of the Hood [51]. Remove the Crank Case Cover [90] and the Hood [51]
from the Crank Case [94]. Remove the Seal Lock Hex. Socket Hd. Bolt M4 x 12 [56] securing the Change
Lever [57] and remove the Change Lever [57] and the Lever Holder [59]. Remove the Retaining Ring for D40
Hole [60] with a retaining ring puller and remove the Lever Shaft [61].
Remove the Seal Lock Hex. Socket Hd. Bolt M6 x 22 [8] from the Cylinder Case [9] and separate the Cylinder
Case [9] from the Crank Case [94]. Remove the Clutch [40], Clutch Spring [35], Lock Sleeve [39] and Lock
Spring [38] from between the Cylinder Case [9] and the Crank Case [94]. (Fig. 15)
Remove the Retaining Ring [7] with a retaining ring puller. In this condition, stand the Cylinder Case [9] and
pull out the Retainer Sleeve [18] from the Cylinder Case [9] with a hand press. Then the Sleeve [16] can be
removed from the Retainer Sleeve [18]. The Retainer Sleeve [18], Cylinder [36], Second Hammer [23], Slide
Ring [30], Slide Sleeve (A) [34] and Slide Sleeve (B) [33] can also be separated from the Cylinder Case [9] as
a unit. (Fig. 16)
Fig. 13
Ball Holder [4]
Stopper Ring [3]
Retainer Sleeve [18]
Retainer Spring [5]
--- 21 ---
Steel Ball D7.0 (2 pcs.) [17]
Washer (D) [6]
Fig. 14