Hitachi Koki WR 12DM2 Manual De Instrucciones página 22

English
<WH12DM2>
3/8"×1-5/32"
kgf•cm N•m
(M10×30)
100
1000
(868)
High strenge bolt
80
800
(695)
60
600
(521)
40
400
(347)
Ordinary bolt
20
200
(174)
0
0
0 1
Tightening time: sec
(Steel plate thickness
t = 3/8" (10 mm))
<WR12DM2>
kgf•cm
3/8"×1-5/32"
(in-lbs) N•m
(M10×30)
200
2000
(1736)
150
1500
(1302) High strenge bolt
1000 100
(868)
500 50
(434)
Ordinary bolt
0
0
0 1
Tightening time: sec
(Steel plate thickness
t = 3/8" (10 mm))
Bolt
Steel plate
thickness t
Nut
22
kgf•cm N•m
140
1400
(1215)
120
1200
(1042)
1000 100
(868)
800
80
(694)
60
600
(521)
40
400
(347)
20
200
(174)
0
2 3
Tightening time: sec
(Steel plate thickness
t = 3/8" (25 mm))
kgf•cm
(in-lbs) N•m
2000
(1736)
1500
(1302)
1000
(868)
500
(434)
0
2 3
Tightening time: sec
(Steel plate thickness
t = 1" (25 mm))
*The following bolt is used.
Ordinary bolt: Strength grade 4.8
High tensile bolt: Hardness division 12.9
(
Explanation of strength grade:
4 — Yield point of bolt: 45,500 psi (32 kgf/mm
8 — Pulling strength of bolt: 56,900 psi (40 kgf/mm
15/32"×1-3/4"
(M12×45)
High strenge bolt
Ordinary bolt
0
0 1 2 3
Fig. 17
15/32"×1-3/4"
(M12×45)
200
High strenge bolt
150
100
50
Ordinary bolt
0
0 1 2 3
Fig. 18
Fig. 19
9/16"×1-15/16"
kgf•cm N•m
(M14×50)
140
1400
(1215)
High strenge bolt
120
1200
(1042)
100
1000
(868)
80
800
(694)
Ordinary bolt
60
600
(521)
40
400
(347)
20
200
(174)
0
0
0 1
Tightening time: sec
(Steel plate thickness
t = 3/8" (25 mm))
kgf•cm
9/16"×1-15/16"
(in-lbs) N•m
(M14×50)
200
2000
High strenge
(1736)
bolt
150
1500
(1302)
100
1000
(868)
500 50
(434)
Ordinary bolt
0
0
0 1
Tightening time: sec
(Steel plate thickness
t = 1" (25 mm))
2 )
2 3
2 3
)
2 )