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9. REPAIR GUIDE
9-1. Precautions and Suggestions for Disassembly and Reassembly of the Main Body
The numbers in [Bold] correspond to the item numbers in the Parts List and exploded assembly diagrams.
9-1-1. Disassembly
Piston and striker disassembly
Remove the Hex. Socket Hd. Bolt (W/Flange) M8 x 35 [20] fixing the Cylinder Case [19], and disassemble the
Cylinder Case [19] from the Crank Case [28]. As the Piston [25] remains in the Crank Case [28] side, remove
the Retaining Ring for D14 Shaft [27] to remove the Connecting Rod [26] from the Crank Shaft [33].
The Striker [22] can be removed by tapping the Cylinder Case [19] lightly with a plastic hammer. If it does not
come out easily, push the disassembled Piston [25] with the Connecting Rod [26] back into the Cylinder, and
pull them apart again quickly. The Striker can come out at the same time.
First gear and crank shaft disassembly
Remove the grease from the Connecting Rod [26] side and the First Gear [44] side of the Crank Case [28].
Remove the two Seal Lock Hex. Socket Hd. Bolts M5 x 14 [35] fixing the Bearing Cover [36]. Then place the
Connecting Rod [26] side of the Crank Case [28] downward on a workbench and apply pressure on the end
surface of the Crank Shaft [33] with a hand press to remove the First Gear [44] and the Crank Shaft [33]
(Fig. 9). Before removing them, make sure that the two Seal Lock Hex. Socket Hd. Bolts M5 x 14 [35] fixing the
Bearing Cover [36] are removed.
Fig. 9
First gear
Apply pressure on the end
surface of the crank shaft
with a hand press.
Workbench
Bearing cover
Crank case
Crank shaft
