--- 13 ---
(b) Mount the Nut [5] to the Front Case [9]. (See Fig. 8.)
Align the register mark (o) on the Nut [5] with the register mark on the Front Case [9]. Turn the Nut [5]
about 1 --- 1/4 turns clockwise so that the register mark (oo) on the Nut [5] is aligned with the register mark
on the Front Case [9]. Check that the Z surface of the Nut [5] is aligned with the Z surface of the Front
Case [9].
Fig. 8
Mounting start position
Mounting end position
Register mark (o)
Register mark
Register mark (oo)
Z surface
Z surface
Register mark (oo)
Register mark
Register mark (o)
Z surface of Nut [5]
Z surface of Front Case [9]
[5]
[9]
[5]
[9]
(3) Reassembly of the gear unit
(a) Apply grease (Hitachi Motor Grease No. 29, Code No. 930035) to the meshing parts of the gear.
(b) Install the parts series from the twelve Steel Balls D5 [10] to Washer (B) [23] into the assembly
reassembled in step (2). (See Fig. 9.)
(i) Note the direction of the groove when installing the Slide Ring Gear [17] so that the groove faces
toward the Motor [25].
(ii) Install the Front Case [9] and the Rear Case [14] together with the mark on the Front Case [9] aligned
with the mark on the Rear Case [14]. (See Fig. 12.)
Fig. 9
[9]
[10]
[11]
[12]
[13]
[14]
[15]
[17] [18] [19]
[20]
[21]
[22]
[23]
Groove
