Hitachi G 10SF3, Technical Data And Service Manual

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(4) Disassembly of the gear (Fig. 3)
Loosen the Seal Lock Screw (W/Sp. Washer) M4 x 12 [23] fixing the Packing Gland [22], and remove the
Packing Gland [22] from the Gear Cover Ass'y [3].
Support the button of the Packing Gland [22] with a jig, and push down on the upper portion of the Spindle
M10 x P1.5 [25] with a hand press until the end surface of the Woodruff Key 2.5 x 8 [24] contacts the Ball
Bearing 6001VVCMPS2L [20] and the Spindle M10 x P1.5 [25] cannot be pushed down any more. Be
careful not to deform the Fringer [26].
Turn the Packing Gland [22] upside down and fix it, then push down the Spindle M10 x P1.5 [25].
Insert the gear puller J-128 (use of a steel plate is permitted as a substitute) between the Gear [17]
and the Packing Gland [22], and push down the Spindle M10 x P1.5 [25] with a hand press to remove it.
[25]
[24]
[26]
Fig. 3
Replace the Ball Bearing 6001VVCMPS2L [20] with new one every time the Gear is disassembled
because the force to pull out the Gear is applied to the Ball Bearing 6001VVCMPS2L [20].
[20]
[25]
[20]
[22]
Push
Push
Push
[24]
[22]
[20]
[25]
[22]
[17]
Step
Step Step
Gear puller J-128
(steel plate)