Hitachi CJ 120V Technical Data And Service Manual page 18

(3) Carefully ensure that two Washers (A) [39] ([42]), the Orbital Cam [40] ([43]), and the Balance Weights [37]
([40]) are assembled as shown in Fig. 15.
(4) During reassembly, be very careful not to forget to install the Felt [44] ([47]) at the lower portion of the Orbital
Cam [40] ([43]), as shown in Fig. 16.
Orbital Cam [40] ([43])
Balance
Weight
[37] ([40])
Fig. 15
(5) Grease
Insert 20 g of Nippeco SEP-3A Grease inside the gear cover. Also liberally apply grease to the following
portions.
Teeth of the Gear [41] ([44])
Slide contact portions of the Balance Weights [37] ([40])
Inside of the Needle Bearing [33] ([36])
Inside of the Connector [31] ([34])
Slide contact portions of the Plunger [67] ([70])
Plunger Holder Ass'y [65] ([68]) surfaces in sliding contact with the Connector [31] ([34])
Surface of the Spindle
Surface of the Gear Cover [45] ([48]) in sliding contact with the Change Knob [52] ([55])
Inside hole of the Roller Holder [59] ([62])
(6) When installing the Plunger Holder Ass'y [65]
([68]) in the Upper Cover [29] ([32]), ensure that
the O-Ring (P-16) [66] ([69]) is properly mounted
at the lower portion of the Plunger Holder Ass'y
[65] ([68]), as shown in Fig. 17. Also, ensure that
the two Springs [49] ([52]) are properly mounted
between the Plunger Holder Ass'y [65] ([68]) and
the Upper Cover [29] ([32]) (Fig. 17).
Washer (A) [39] ([42])
Washer (A) [39] ([42])
Orbital Cam [40] ([43])
Orbital Pin [43] ([46])
Felt [44] ([47])
Upper Cover
[29] ([32])
Spring [49] ([52])
Gear Cover
[45] ([48])
Fig. 16
Plunger Holder Ass'y
[65] ([68])
Fig. 17
O-ring
[66] ([69])