Table Of Contents - Hitachi NR 90AD Technical Data And Service Manual

1. PRODUCT NAME ............................................................................................................................. 1
2. MARKETING OBJECTIVE ............................................................................................................... 1
3. APPLICATIONS ................................................................................................................................ 1
4. SELLING POINTS ............................................................................................................................ 1
5. SPECIFICATIONS ............................................................................................................................ 2
5-1. Specifications ..................................................................................................................................... 2
5-2. Explanation of the Nailing Action ....................................................................................................... 3
5-3. Nail Selection ..................................................................................................................................... 4
5-4. Nail Driving Force .............................................................................................................................. 5
6. COMPARISONS WITH SIMILAR PRODUCTS ................................................................................ 6
7. PRECAUTIONS IN SALES PROMOTION ....................................................................................... 7
7-1. Handling Instructions ......................................................................................................................... 7
7-2. Warning Label .................................................................................................................................... 7
7-3. Related Laws and Regulations .......................................................................................................... 8
8. MECHANISM AND OPERATION PRINCIPLE ................................................................................. 9
8-1. Mechanism ........................................................................................................................................ 9
8-2. Operation Principle .......................................................................................................................... 11
9. TROUBLESHOOTING GUIDE ....................................................................................................... 14
9-1. Troubleshooting and Correction ....................................................................................................... 14
9-2. Regrinding the Driver Blade ............................................................................................................. 17
9-3. Possible Causes and Correction of Air Leakage ............................................................................. 18
10. DISASSEMBLY AND REASSEMBLY .......................................................................................... 20
10-1. General Precautions in Disassembly and Reassembly ................................................................. 20
10-2. Disassembly and Reassembly of the Output Section .................................................................... 21
10-3. Disassembly and Reassembly of the Control Valve Section ......................................................... 24
10-4. Disassembly and Reassembly of the Driving Section ................................................................... 27
10-5. Disassembly and Reassembly of the Cap and the Magazine Section .......................................... 30
11. INSPECTION AND CONFIRMATION AFTER REASSEMBLY .................................................... 33
12. STANDARD REPAIR TIME (UNIT) SCHEDULES ....................................................................... 34
Assembly Diagram for NR 90AD
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