Hitachi NR 83A2 Technical Data And Service Manual page 18

Parts that were newly designed or changed for the Model NR 83A2 and not interchangeable with the Model
2
NR 83A (except the parts described in
Part
Valve Bushing [57]
Plunger (B) [74]
Valve Sleeve (A)
[69] (switching
device)
O-ring (P-9) [60]
Plunger O-ring
Wire dia. 1.5 mm
[71] (Inside of the
Inside dia. 4.5 mm
Valve Bushing
[57])
Plunger (B) Spring
[73]
O-ring (S-7) [70] Wire dia. 1.5 mm
Inside dia. 6.5 mm
(To prevent Valve
Sleeve (A) [69]
(switching device)
from coming off)
Washer M5 [72]
(Receiver of
Plunger (B) Spring
[73] at the Valve
Bushing [57] side)
The parts of the control valve section except the above are common to those of the Model NR 83A.
)
1
NR 83A2
O-ring (P9)
Wire dia. 1.9 mm
Inside dia. 8.8 mm
Cross-sectional view
Outside dia. 7.4 mm
Overall
length 28 mm
10 mm dia.
Thickness: 1 mm
5.3 mm dia.
NR 83A
--- 15 ---
Caution
These parts were newly
designed to provide the single
actuation (single sequential
actuation)/contact actuation
selector. They are not
interchangeable.
These parts are exclusive to
the Model NR 83A2.