Maintenance 2. General Maintenance
108 N6 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.
See below for the set screw.
M2.5
1.4 ± 0.1 N⋅m
14± 1 kgf⋅cm)
⋅
⋅
recommended to fasten the bolts aligned on a circumference in a crisscross pattern as
shown in the figure below.
bolt
s securely at one time.
Divide the number of times
to fasten the bolts 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.