Hitachi NV 45AC Technical Data And Service Manual page 28

(1) Disassembly and reassembly of the Nose [36], Pushing Lever (A) [42], Pushing Lever Guide [28], etc.
(See Fig. 17)
(a) Disassembly
Remove the Machine Screw (W/Sp. Washer) M5 x 16 (Black) [44] with a Phillips screwdriver and then remove
the Magazine Ass'y [106]. Remove the Machine Screw (W/Sp. Washer) M5 x 16 (Black) [44] with a Phillips
screwdriver and then remove the Guard [32] from the Nose [36].
Remove the two Nylock Bolts (W/Flange) M6 x 25 [35] from the Nose [36] with a hex. bar wrench (5 mm).
Now, the Nose Guard [34], the Nose [36] and Pushing Lever (A) [42] can be removed.
Pull out the Roll Pins D3 x 18 [52] and D3 x 25 [53] with a roll pin puller (3 mm (0.118") dia.). Then the
Pushing Lever Guide [28] can be removed.
(b) Reassembly
Disassembly procedures should be followed in the reverse order. Note the following points:
Before reassembly, check that the end of Pushing Lever (A) [42] is inserted in the opening of the Pushing
Lever Guide [28] securely as shown in Fig. 18.
After reassembly, check that Pushing Lever (A) [42] operates smoothly.
End of Pushing Lever (A) [42]
(2) Disassembly and reassembly of the adjuster section (See Fig. 17)
(a) Disassembly
Remove the Pushing Lever Guide [28] by following the procedure in (1), section 10-4.
Pull out the Roll Pin D1.6 x 12 [67] with a roll pin puller (1.5 mm (0.059") dia.). Then the Adjuster Knob [68],
the Adjuster Spring [66], the Bolt Washer M4 [65], the Latch [27], the Adjuster Shaft [26], the Spring [69],
Pushing Lever (B) [70] and the Adjuster [71] can be removed.
(b) Reassembly
Disassembly procedures should be followed in the reverse order. Note the following points:
Align the dihedral width portion and the radius portion of the Latch [27] to the window of Pushing Lever (B)
[70] when reassembling (Fig. 19).
Mount the Adjuster [71] and the Adjuster Knob [68] as shown in Fig. 20.
Apply the supplied oil (Hitachi pneumatic tool lubricant) to Pushing Lever (B) [70] and the Bolt Washer M4 [65]
before reassembly.
After reassembly, check that the Adjuster [71] and Pushing Lever (B) [70] operate smoothly.
Opening of the Pushing Lever Guide [28]
Fig. 18
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