Panasonic EY75A2X - Manual (Page 17)

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EY75A1 18 V
M10 x 35 mm M12, M14, M16 x 45 mm
Standard bolt
N × m
(kgf-cm)
196.0
（2000）
147.0
（1500）
98.0
（1000）
49.0
（500）
0.5 0.0 1.0 1.5 2.0 2.5 3.0
M12
M14
M16
M10
T
ightening torque
Tightening time (Sec.)
EY75A1 18 V
M8, M10 x 35 mm. M12 x 45 mm
High tensile bolt
196.0
（2000）
147.0
（1500）
98.0
（1000）
49.0
（500）
0.5 0.0 1.0 1.5 2.0 2.5 3.0
N × m
(k g f-cm)
M12
M10
M8
T
ightening torque
Tightening time (Sec.)
EY75A2 18 V
M10 x 35 mm M12, M14, M16 x 45 mm
Standard bolt
196.0
（2000）
147.0
（1500）
98.0
（1000）
49.0
（500）
0.5 0.0 1.0 1.5 2.0 2.5 3.0
M12
M14
M16
M10
N s m
(k gf-cm)
T
ightening torque
Tightening time (Sec.)
EY75A2 18 V
M8, M10 x 35 mm. M12 x 45 mm
High tensile bolt
196.0
（2000）
147.0
（1500）
98.0
（1000）
49.0
（500）
0.5 0.0 1.0 1.5 2.0 2.5 3.0
M12
M10
M8
N s m
(k gf-cm)
T
ightening torque
Tightening time (Sec.)
Bolt
Nut
Washer
Steel plate
thickness 10 mm (3/8")
Washer
Spring washer
Tightening conditions
• The following bolts are used.
Standard bolts: Strength type 4.8
High tensile type 12.9
4.8
Explanation of the strength type
Bolt yield point
(
80 % of tensile strength)
32 k gf/mm 2 (45000 psi)
Bolt tensile strength
40 k gf/mm 2 (56000 psi)
2) Tightening time
Longer tightening time results in increased
tightening torque. Excessive tightening,
how ever, adds no value and reduces the
life of the tool.
3) Different bolt diameters
The size of the bolt diameter affects the
tight ening torque.
Generally, as the bolt diameter increases,
tightening torque rises.
4) Tightening conditions
Tightening torque will vary, even with the
same bolt, according to grade, length, and
torque coefficient (the fixed coefficient indi-
cated by the manufacturer upon produc-
tion).
EY7546_EY7547_EY7550_EY7551_US.indb 17 EY7546_EY7547_EY7550_EY7551_US.indb 17 2013-2-19 11:17:48 2013-2-19 11:17:48