Hitachi DH 40MRY, Технические данные и руководство по обслуживанию

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Steel bar
Ball Bearing
6203DDCMPS2L
[43]
Feather Key 3 x 3 x 8 [37]
O-ring (S-40) [44]
Fig. 21
Crank Shaft [41]
Cylinder Crank Case [46]
Retaining Ring for
D40 Hole
[42]
First Gear [61]
Suitable tool
(4) Disassembly of the slip clutch assembly
Remove the Ball Bearing 629VVC2PS2L [59] with a
bearing puller. Place the assembly on a sleeve-type
support facing Washer (A) [53] downward as shown in
Fig. 20. Push the Spacer [58] side of the Bevel Pinion
[48] with a hand press to remove the Gear Holder [54]
and the Spacer [58] from the Bevel Pinion [48] . Before
removal of the Second Gear [57] from the Gear
Holder [54] , put the assembly in a poly bag and
disassemble it inside the poly bag to prevent missing
of Spring (C) [55] and the Needle [56] .
Fig. 20
Press the end surface
of the bevel pinion
with a hand press.
Bevel Pinion [48]
Support
Washer (A) [53]
Spacer [58]
9-2. Reassembly
Reassembly can be accomplished by following the disassembly procedure in reverse. However, special attention
should be given to the following items.
(1) Mounting the first gear and the crank shaft
Press-fit Oil Seal (B) [45] into the Cylinder Crank Case [46] and mount the O-ring (S-40) [44] . Press-fit the Ball
Bearing 6203DDCMPS2L [43] . Mount the Retaining Ring for D40 Hole [42] using a retaining ring puller.
Press-fit the Crank Shaft [41] into the Ball Bearing 6203DDCMPS2L [43] . Put the Feather Key 3 x 3 x 8 [37] in
the groove of the Crank Shaft [41] and press-fit the First Gear [61] with a suitable tool while holding the flat
portion of the Crank Shaft [41] with a steel bar. Before press-fitting, make sure that the Feather Key 3 x 3 x 8
[37] fits in the key groove of the First Gear [61] (Fig. 21).
Oil Seal (B) [45]