Hitachi NR 83AA3, Technical Data And Service Manual, Page: 15 / 45

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8.2 Interchangeability
Interchangeability of the parts between the Model NR 83AA3 and the Model NR 83AA2 is described below.
As described in 8-2, the magazine section is identical with that of the Model NR 83AA2, and all the parts of the
magazine section are interchangeable with those of the Model NR 83AA2.
The parts that are newly designed, changed or added for the Model NR 83AA3 and not interchangeable with
those of the Model NR 83AA2 are described in detail.
(1) Output section
Be careful not to make mistakes in mounting the following parts that were changed for the Model NR 83AA3
because these parts are similar to those of the Model NR 83AA2 but not interchangeable.
Exhaust Valve [9]
Cylinder [17]
Part
NR 83AA3 NR 83AA2
Color: Orange
Chamfered
Not chamfered
Caution
1 mm dia. hole
Color: Milky white
Never mount the exhaust valve
for the Model NR 83AA2 to the
Model NR 83AA3 by mistake.
Otherwise, it may cause a
malfunction when selecting the
single actuation (single
sequential actuation)
mechanism.
Note that the driving force may
be decreased a little though no
malfunction may occur if the
exhaust valve for the Model
NR 83AA3 (1 mm dia. hole is
provided) is mounted to the
Model NR 83AA2.
Do not mount the cylinder for the
Model NR 83AA2 to the Model
NR 83AA3. Otherwise, the
driving force may be decreased
a little.
There is no problem in mounting
the cylinder for the Model
NR 83AA3 to the Model
NR 83AA2.
The parts of the output section except the above are common to those of the Model NR 83AA2.
Pushing Lever [45]
Part
NR 83AA3 NR 83AA2
Without safety bolt
Caution
Safety bolt
(2) Driving section
Parts that were changed for the Model NR 83AA3 and not interchangeable with those of the Model NR 83AA2
though they are similar to those of the Model NR 83AA2
The pushing lever for the Model
NR 83AA3 is not
interchangeable with that of the
Model NR 83AA2 because the
adjustment method is different
(safety bolt is not provided).
The parts of the driving section except the above are common to those of the Model NR 83AA2.