Hitachi NR 90AE Technical Data And Service Manual page 35

(b) Reassembly
Disassembly procedures should be followed in the reverse order. Note the following points.
When inserting the Roll Pin D4 x 36 [79] into Nail Feeder (B) [80], be careful that the end of the Roll Pin
D4 x 36 [79] is not stick out from Nail Feeder (B) [80]. Insert the Feeder Spring [83] between the protrusion of
Nail Feeder (A) [78] and the protrusion of Nail Feeder (B) [80].
Nail Feeder (A) [78]
(3) Disassembly and reassembly of the cap (See Fig. 25.)
[Tool required]
Hex. bar wrench (4 mm)
(a) Disassembly
Remove the three Hex. Socket Hd. Bolts M5 x 16 [41], then the Cap [40] and Gasket (B) [39] can be
removed.
(b) Reassembly
Reassembly can be accomplished by following the disassembly procedures in reverse.
Protrusion
Roll Pin D4 x 36 [79]
Fig. 25
Gasket (B) [39]
Body Ass'y [24]
Fig. 26
--- 32 ---
Nail Feeder Ass'y [87]
Nail Feeder (B) [80]
Feeder Spring [83]
Protrusion
Hex. Socket Hd. Bolt
M5 x 16 [41]
Cap [40]