Operation Guide

PERIODIC MAINTENANCE
58
L-N Operation Manual
Tightening Fasteners
Use the correct amount of torque when you
tighten fasteners on the machine. Applying
excessive torque may damage the fastener or
component and not enough torque may cause a
leak or component failure.
STANDARD TORQUE CHART
CAUTION
The tightening torque in the Standard
Torque Char t (page 12) should be
carefully observed.
• Apply 60% torque to bolts that are not
listed.
• Apply 80% torque when tightened to
aluminum alloy.
0000023enLVOM
Thread size × Pitch mm M6×1.0 M8×1.25 M10×1.5 M12×1.75 M14×1.5 M16×1.5
Tightening
Torque
N·m 10.8 ± 1.0 25.5 ± 2.9 49.0 ± 4.9 88.3 ± 9.8 137.0 ± 9.8 226.0 ± 9.8
kgf·m 1.1 ± 0.1 2.6 ± 0.3 5.0 ± 0.5 9.0 ± 1.0 14.0 ± 1.5 23.0 ± 2.0
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