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11. INSPECTION AND CONFIRMATION AFTER REASSEMBLY
Be sure to check the following items after reassembly. Pay special attention to the items (2) and (4) about the
single actuation (single sequential actuation) mechanism that is not provided to the Model NT 65A2 but the
Model NT 65A3. Before checking the following items except (5), check that no nail is loaded in the Magazine
Ass'y [63] and the Nose Ass'y [22].
(1) Check that the Pushing Lever [65], Trigger [59], Trigger Plunger [58], Plunger (A) [42], Plunger (B) [52] and
Valve Sleeve [47] operate smoothly without connecting to an air compressor. Then check that the Nail Feeder
[67] moves smoothly in the Magazine Ass'y [63].
(2) Connect the Model NT 65A3 to an air compressor and set the Valve Sleeve [47] to "single actuation (single
sequential actuation)" (see 5-3). Check the following when the pressure is 3.5 kgf/cm (49 psi) and 8.5 kgf/cm
(120 psi).
Check that there is no air leakage and the Model NT 65A3 does not operate (i.e., check that the Piston [9]
does not come out of the Nose Ass'y [22] tip (outlet of nails) when it is left for five seconds or more).
(3) Set the Valve Sleeve [47] to "contact actuation" (see 5-3). Check the following when the pressure is
8.5 kgf/cm (120 psi).
Check that the Model NT 65A3 does not operate just by pulling the Trigger [59].
Check that the Model NT 65A3 does not operate just by pressing the Pushing Lever [65] against a test
piece (wood etc.).
Check that the Model NT 65A3 operates by pulling the Trigger [59] first then pressing the Pushing Lever
[65] against a test piece (at this time, keep the Nail Feeder [67] pulled backward).
(4) Set the Valve Sleeve [47] to "single actuation (single sequential actuation)". Check the following when the
pressure is 8.5 kgf/cm (120 psi).
Check that the Model NT 65A3 does not operate just by pulling the Trigger [59] (i.e., check that the Piston
[9] does not come out of the Nose Ass'y [22] tip (outlet of nails) when keeping the Trigger [59] pulled for five
seconds or more).
Check that the Model NT 65A3 does not operate just by pressing the Pushing Lever [65] against a test
piece.
Check that the Model NT 65A3 operates by pressing the Pushing Lever [65] against a test piece first then
pulling the Trigger [59]. Check that the Piston [9] is still showing from the Nose Ass'y [22] tip (outlet of
nails) after the Pushing Lever [65] is released from the test piece with the Trigger [59] pulled.
(5) Set the Valve Sleeve [47] to "contact actuation". Set the pressure to 4.5 kgf/cm (63 psi) and load nails in the
Magazine Ass'y [63]. Perform nailing operation and check that nails are properly driven (no idling and bent
nails).
(6) Recheck the tightening torque of each screw without connecting to an air compressor.
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