John Deere ET-3103-J 用户手册

      

Cordless Impact Wrench Operator's Manual   

                  

             21  

Tightening  time:  sec
(Steel  plate  thickness

t  =  1"/25  mm)

Tightening  time:  sec
(Steel  plate  thickness

t  =  1"/25  mm)

Tightening  time:  sec
(Steel  plate  thickness

t  =  3/8"/10  mm)

Fig. 17

Explanation of strength grade:

  4 — Yield point of bolt: 45,500 psi (32 kgf/mm

2

)

 

8 — Pulling strength of bolt: 56,900 psi (40 kgf/mm

2

)

 

*The following bolt is used.

  Ordinary bolt: Strength grade  4.8

  High tension bolt: Hardness division  12.9

Fig. 16

Fig. 18

2000

(1736)

200