Hitachi NR 83A2 Technical Data And Service Manual page 14

The <Bold> numbers in the figure below correspond to the numbers in "8-3. Operation Principle".
Exhaust Vent < 3 >
Piston < 4 >
Cylinder < 6 >
Driver Blade < 7 >
Return Air
Chamber < 8 >
Cylinder
Spring < 5 >
Piston
Bumper < 9 >
Nose <10>
Pushing
lever ass'y
Exhaust Valve < 2 >
Exhaust cover
Control valve
section
Fig. 3 Construction
--- 11 ---
Safety valve portion
Control valve section
Grip rubber
Magazine
Magazine section
Trigger valve portion
Trigger
Switching device
(Valve sleeve (A))
Valve bushing
Plunger (B)
Ribbon spring ass'y
Nail feeder