Hitachi NV 50AF3, Technical Data And Service Manual

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(2) Disassembly and reassembly of the Magazine Ass'y [105]
(a) Disassembly
Loosen the Machine Screw (W/Washers) M5 x 30 [49] securing the Body Ass'y [22] . Then the Magazine
Ass'y [105] , the Hook [48] and Protector (B) [79] can be removed.
(b) Reassembly
Proceed in reverse to the disassembly procedure, fitting the convex portion of the Magazine [83] into the
Nose [33] .
(3) Disassembly and reassembly of the Nail Holder [87], the Holder Shaft [89], etc.
(a) Disassembly
Remove the two Pins [81] with a roll pin puller (4 mm dia.). Then the Magazine [83] and the Magazine
Cover [84] can be removed. Remove Holder Cap (A) [85] , and remove the Roll Pin D2.5 x 12 [88] with a
roll pin puller (2.5 mm dia.). Then the Nail Holder [87] , the Holder Shaft [89] and the Spring [90] can be
removed.
(b) Reassembly
Proceed in reverse to the disassembly procedure, taking care of the following points.
Check that the Spring [90] is inserted between the concave portion of the Magazine [83] and the convex
portion of the Holder Shaft [89] . Then insert the Pin [81] when mounting the Holder Shaft [89] to the
Magazine [83] (Fig. 21).
Check that the Feeder Shaft Rings [82] (2 pcs.) are fitted in the grooves of the Pins [81] (2 pcs.). Be
careful not to lose the Feeder Shaft Rings [82] .
Check the following after reassembly.
The Nail Holder [87] tilts when the Magazine Cover [84] is opened.
The Nail Holder [87] moves smoothly in the Magazine [83] when the Magazine Cover [84] is closed.
Nail Holder [87]
Convex portion of the
Holder Shaft
[89]
Concave portion of
the Magazine
[83]
Pin [81]
Spring [90]
Fig. 21