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排版印刷错误,也许你找的这张图就是很多错误的来源
凭手感都可以体验到,40 lb in是多么小的扭矩,根本拧不紧castle nut,只有规定扭矩的十二分之一
这里是从Colt的资料来的
Colt "M16A2 Rifles and Carbines Armorer/Depot Maintenance and Repair Manual - 2nd Edition - 1991:
1. Install Detent and Spring.
2. Screw Reciever Extension onto Reciever while depressing Detent and Tighten Reciever Extension.
- RIFLE: Use Torque Wrench, Part No. 94162 with Wrench,Combination Part No. 62696 (GI M16 Armorer Wrench) to apply Torque of 35-39 lb-ft.
- CARBINE: Use Torque Wrench, Part No. 94162 with wrench, Part No. 62420 to apply Torque of 38-42 lb.-ft.
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