Hitachi NR 65AK Service Manual page 33

(a) Disassembly
Remove the Hex. Socket Hd. Bolt M6 x 12 [77] and Nylock Bolt (W/Flange) M6 x 16 [31] and take out the
magazine section and the Guard [23].
Remove the Nylock High Tension Bolt M6 x 20 [21] and take out the Nose [20] .
Pull out the Roll Pins D3 x 12 [22] and Pin [55A].
Remove Pin (A) [27] with a phillips screwdriver, then Pushing Lever (A) [30], Pushing Lever (B) [28] and
Pushing Lever (C) [24] can be removed.
(b) Reassembly
Disassembly procedures should be followed in the reverse order. Note the following points.
Apply grease to the O-ring (S-46) [13]
and then install it.
Fit the protrusion of Pushing Lever (B)
[28] into the guide groove of the Nose
[20] (Fig. 28).
Fit the tip of Pushing Lever (B) [28]
into the groove of Pushing Lever (A)
[30] (Fig. 28).
O-Ring (P-4) [91]
Mount the Spring [29A] aligning with
the protrusions of Pushing Lever (A)
[30] and Pushing Lever (B) [28]
(Fig. 28).
After mounting the O-Ring (1AP-3)
[26A], adjust the hole positions of
Pushing Lever (B) [28] and Pushing
Lever (C) [24] and insert Pin (A) [27]
(Fig. 29).
Spring [29A]
Tip of Pushing
Lever (B) [28]
Protrusion
Protrusion of
Pushing Lever
(B) [28]
Guide groove of
the Nose [20]
Groove of
Pushing Lever (A)
[30]
Pushing
Lever (B) [28]
Pushing Lever (C) [24]
--- 29 ---
Fig.28
O-Ring (1AP-3) [26A]
Insert
Pin (A) [27]
Fig.29