Hitachi NR90GC Service Manual - Page 63

(b) Reassembly Perform reassembly according to the following procedure. Mount Nail Feeder (A) [112] and the Spring [119] to Nail Feeder (B) [120] and drive the Roll Pin D4 x 28 [118] in "B" direction as shown in Fig. 52 to secure it. Do not protrude the end of the Roll Pin D4 x 28 [118] from Nail Feeder (B) [120]. See Fig. 53. (1) Fit the Spring D8 [122] in Handle (A) [124]. (2) Set the Pushing Lever Stopper [123] on the Spring D8 [122]. Do not tilt the Spring D8 [122] or insert the Pushing Lever Stopper [123] into the Spring D8 [122]. Check that the Pushing Lever Stopper [123] moves smoothly. Keep holding the Pushing Lever Stopper [123] with fingers until the Side Plate [55] is mounted because the Pushing Lever Stopper [123] is apt to be removed. Set the Ribbon Spring [121] to Handle (A) [124]. Mount the Side Plate [55] to Handle (A) [124] with the spring hooking portion of the Side Plate [55] engaged with the hook of the Ribbon Spring [121]. (3) Insert a finger into the coil portion of the Ribbon Spring [121] from the front of Handle (A) [124]. Stretch the coil portion in the nail feeder pulling direction. Then set the nail feeder to the coil portion and return the nail feeder to the forward position slowly. Mount the Feeder Knob [125] to the nail feeder and tighten the Tapping Screw (W/Flange) D5 x 20 (Black) [126]. Apply grease to the Lever Stopper [116] and mount it to the specified position on the handle. Push in the Lever Stopper [116] as far as it will go with a roll pin puller to engage with the convex portion of Handle (A) [124] (Fig. 54-1). Apply grease to the surface where Handle (A) [124] contacts (prevention of dropping). Lever Stopper [116] Handle (A) [124] Push in this portion to engage with the convex portion of Handle (A) [124]. Convex portion Fig. 54-1 --- 60 ---