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10. DISASSEMBLY AND REASSEMBLY
The items particularly necessary for disassembly and reassembly are described below. The [Bold] numbers in
the descriptions below correspond to the item numbers in the Parts List and exploded assembly diagram.
[CAUTION]
Before disassembly or reassembly, be sure to remove all nails and disconnect the air hose from the
nailer (with your finger released from the trigger) to exhaust all the compressed air.
10-1. General Precautions in Disassembly and Reassembly
Apply grease (ATTOLUB No. 2) (Code No. 317918) to the O-rings and O-rings' sliding portions.
When installing the O-rings, be careful not to damage the O-rings and prevent dirt entry.
Oil required: Hitachi pneumatic tool lubricant
1 oz (30 cc) oil feeder (Code No. 877153)
4 oz (120 cc) oil feeder (Code No. 874042)
1 quart (1 ltr) can (Code No. 876212)
If Gasket (A) [6] is damaged, replace it and check that no air is leaking.
Be especially careful to prevent the entry of foreign particles into the control valve section.
Tightening torque for each part
Bolt
Tightening torque N
•
m (kgf
•
cm, ft-lb)
Hex. Socket Hd. Bolt M8 x 30 ....................................... [64]
25.5 2 (260 20, 18.8 1.4)
12.7 0.8 (130 8, 9.4 0.6)
12.7 0.8 (130 8, 9.4 0.6)
12.7 0.8 (130 8, 9.4 0.6)
12.7 0.8 (130 8, 9.4 0.6)
9.8 0.8 (100 8, 7.2 0.6)
Hex. Socket Hd. Bolt M6 x 12 ....................................... [39]
Hex. Socket Hd. Bolt M6 x 16 ....................................... [1]
Hex. Socket Hd. Bolt (W/Flange) M6 x 35 .................... [4]
Hex. Socket Hd. Bolt M5 x 16 ....................................... [44]
Nylock Bolt (W/Flange) M6 x 20 .................................... [27]
Hex. Socket Hd. Bolt (W/Flange) M6 x 12 .................... [80]
6.4 0.5 (65 5, 4.7 0.4)
Summary of Contents for NR 90AC3
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