Hitachi NV 65AF3 Technical Data And Service Manual page 38

Apply grease to the sliding surfaces of the Feed Piston [79] and the Nose [27]. However, be careful not to
apply too much grease to the "A" surface shown in Fig. 30. Otherwise, the Feed Piston [79] operates
improperly at the low pressure.
Mount the Roll Pin D4 x 16 [29] facing its split toward the magazine. The amount of protrusion at both
ends must be equal after reassembly (amount of protrusion: 1.5 mm).
Check that the Retaining Ring for D28 Hole [84] is securely inserted into the groove of the Nose [27].
(4) Disassembly and reassembly of Nail Guide [105], Nail Stopper (A) [103], Nail Stopper (B) [108] and other
parts (Fig. 31)
[Tools required]
(a) Disassembly
Remove the Shaft Ring [76] from the Nail Guide Shaft [102] with a flat-blade screwdriver and remove the
Nail Guide Shaft [102]. Then the Nail Guide [105] and other parts can be removed in an assembly.
Remove the Nylock Hex. Socket Hd. Bolt M4 x 10 [110] and the Nylock Hex. Socket Hd. Bolt M4 x 12
[114] with a hex. bar wrench (3 mm). Then the Nail Guide Cover [112], Stopper Spring [109], Nail
Stopper Spring [104] and Cover [111] can be removed.
Remove the Shaft Ring [76] from the Guide Lock [106] with a flat-blade screwdriver and pull out the
Guide Lock [106]. Then Nail Stopper (A) [103] and Nail Stopper (B) [108] can be removed.
Nose [27]
Nail Guide Shaft [102]
Fig. 31 Disassembly and reassembly of nail guide, nail stopper (A),
Flat-blade screwdriver
3 mm hex. bar wrench
Shaft Ring [76]
Nail Stopper Spring [104]
nail stopper (B) and other parts
Nail Stopper (A) [103]
O-ring (P-4) [26]
Guide Lock [106]
Spring [107]
Nail Guide Cover [112]
Cover [111]
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Nail Guide [105]
Nail Stopper (B) [108]
Stopper Spring [109]
Shaft Ring [76]
Nylock Hex.
Socket Hd. Bolt
M4 x 10 [110]
Nylock Hex. Socket Hd.
Bolt M4 x 12 [114]
Sleeve (B) [113]