Hitachi CM 4SB2 Technical Data And Service Manual page 14

(3) Disassembly of the base ass'y (Fig. 3)
1 Remove the Retaining Ring (E-Type) For D8 Shaft [52] to remove the Link Lever [51]. Loosen the
Special Bolt M6 [53] and remove the Washer M6 [50].
2 Pull out the Roll Pin D6 x 36 [48] which connects the Gear Cover [41] and the Base [49].
(4) Disassembly of the Bearing Holder [37] (Fig. 4 and Fig. 5)
1 Loosen the two Seal Lock Screws (W/Sp. Washer) M5 x 20 [47]. Tap gently the end surface of the
Gear Cover [41] with a wooden hammer and remove the Bearing Holder [37] in an assembled
condition.
2 Pull out the O-ring [33] attached to the tip of the Spindle [38] and push the end surface of the Spindle
[38] with a hand press holding the side of the Bearing Holder [37]. Then the Distance Piece [35] and
the Spindle [38] can be removed in an assembled condition.
[37]
[47]
[35]
[33]
[48]
[49]
[41]
[38]
Fig. 4
[41]
Fig. 3
[37]
Jig
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[53]
[52]
[51]
[50]
Push [38]
[34] [35]
38 mm
Fig. 5
[33]
[36]