Hitachi NR90AD Instruction Manual - Page 11

(Set the switching device to the upward position completely as shown in the diagram. Otherwise, it will not operate properly.) Upward position Switching Device English Ⅺ The nailer will remain in operated status (the driver blade will remain at the bottom). 3 Remove the finger from the trigger. Ⅺ Nailer operation will end (the driver blade will return to the top). (6) Set the switching device to the downward position (CONTACT ACTUATION MECHANISM). (Set the switching device to the downward position completely as shown in the diagram. Otherwise, it will not operate properly.) Ⅺ THE NAILER MUST NOT LEAK AIR. (3) Remove the finger from the trigger and press the push lever against the workpiece. Ⅺ THE NAILER MUST NOT OPERATE. Switching Device Downward position Do not pull Trigger Depress Push Lever (4) Separate the push lever from the workpiece. Next, point the nailer downward, pull the trigger and then wait in that position for 5 seconds or longer. Ⅺ THE NAILER MUST NOT OPERATE. With the Nailer off the workpiece, pull the trigger. Depress the push lever against the workpiece. Ⅺ THE NAILER MUST OPERATE. (7) If no abnormal operation is observed, you may load nails in the Nailer. Drive nails into the workpiece that is the same type to be used in the actual application. Ⅺ THE NAILER MUST OPERATE PROPERLY. ADJUSTING AIR PRESSURE WARNING Pull Trigger (5) 1 Without touching the trigger, depress the push lever against the workpiece. Pull the trigger. Ⅺ THE NAILER MUST OPERATE. 2 Hold the trigger back while separating the push lever from the workpiece. ⅷ Do not exceed 120 psi (8.3 bars 8.5 kgf/cm2). Adjust the air pressure at recommended operating pressure 70 - 120 psi (4.9 - 8.3 bar 5 - 8.5 kgf/cm2) according to the length of nails and the hardness of workpiece. The correct air pressure is the lowest pressure which will do the job. Using the Nailer at a higher than required air pressure unnecessarily over stresses the Nailer. - 11 -