Inspection And Confirmation After Reassembly - Hitachi NR 90AC2 Technical Data And Service Manual

11. INSPECTION AND CONFIRMATION AFTER REASSEMBLY

Check that the Pushing Lever Stopper [71] is not placed over Pushing Lever (B) [33] without loading nails.
(See Fig. 21.)
Pushing lever ass'y
Note:
The Model NR 90AC2 is equipped with a pushing lever stopper as an idling protector. The Pushing Lever
Stopper [71] is placed over Pushing Lever (B) [33] to prevent the pushing lever ass'y from being pushed up
when no nail is loaded in the magazine or the number of nails remained in the magazine is five or less.
Pull Nail Feeder (B) [72] backward before checking the operation of the pushing lever ass'y.
Pushing lever ass'y
Check that Nail Feeder (B) [72] slides in the Magazine [76] smoothly.
Check that Plunger (A) [58] moves smoothly.
Check that there is no air leakage from each part.
While driving nails with an air pressure of 4.5 kgf/cm
nails.
Note: Before conducting the driving test, turn Adjuster (A) [34] to the deepest position.
Recheck the tightening torque of each screw.
Check that Pushing Lever (A) [37] slides smoothly.
Check that the machine will not operate only by pulling Trigger (A) [46]. Also check that the machine will not
operate only by depressing Pushing Lever (A) [37].
Pushing Lever Stopper [71]
Pushing Lever (B) [33]
Pushing Lever (A) [37]
Pushing Lever (B) [33]
Pushing Lever (A) [37]
Fig. 21
Nail Feeder (B)
Fig. 22
2
(63 psi), check that there is no misfiring and bending of
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