Epson C Series User Manual

C8 Maintenance 2. General Maintenance
194 C Series Maintenance Manual Rev.2
2.4 Tightening Hexagon Socket Head Bolts
Hexagon socket head cap bolts (hereinafter, “bolts”) are used in places where mechanical
strength is required. These bolts are fastened with the tightening torque shown in the
following tables.
When it is required to refasten the bolts in some procedures in this manual (except special
cases as noted), use a torque wrench so that the bolts are fastened with appropriate tightening
torque as shown below.
Bolt
Tightening Torque
See below for the set screw.
M3
2.0 ± 0.1 N⋅m
(21 ± 1 kgf⋅cm)
Set Screw
Tightening Torque
M4
4.0 ± 0.2 N⋅m
(41 ± 2 kgf⋅cm)
M4
2.4 ± 0.1 N⋅m
(26 ± 1 kgf⋅cm)
M5
8.0 ± 0.4 N⋅m
(82 ± 4 kgf⋅cm)
M5
3.9 ± 0.2 N⋅m
(40 ± 2 kgf⋅cm)
M6
13.0 ± 0.6 N⋅m
(133 ± 6 kgf⋅cm)
M6
8.0 ± 0.4 N⋅m
(82 ± 4 kgf⋅cm)
M8
32.0 ± 1.6 N⋅m
(326 ± 16 kgf⋅cm)
M10
58.0 ± 2.9 N⋅m
(590 ± 30 kgf⋅cm)
M12
100.0 ± 5.0 N⋅m
(1,020 ± 51 kgf⋅cm)
It is
recommended to fasten the bolts aligned on a circumference in a crisscross pattern as
shown in the figure below.
1
5
3
7
2
6
4
8
Bolt hole
Do not fasten all
bolts securely at one time.
Divide the number of times
to fasten the bolt
s into
two or three and fasten the
bolt
s securely with a
hexagonal wrench. Then, use a torque wrench
to
fasten the bolts
with tightening torques shown in the
table above.

Epson C Series Specifications

General

Brand	Epson
Model	C Series
Category	Robotics
Language	English