Tightening Fasteners; Standard Torque Chart - Yanmar L48N Operation Manual

PERIODIC MAINTENANCE

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.
CAUTION
The tightening torque in the Standard
Torque Chart (page 12) should be
carefully observed.
• Apply 60% torque to bolts that are not
listed.
• Apply 80% torque when tightened to
aluminum alloy.

STANDARD TORQUE CHART

Thread size × Pitch mm
N·m
Tightening
Torque
kgf·m
58
0000023enLVOM
M6×1.0 M8×1.25
10.8 ± 1.0 25.5 ± 2.9
1.1 ± 0.1 2.6 ± 0.3
M10×1.5 M12×1.75
49.0 ± 4.9 88.3 ± 9.8
5.0 ± 0.5 9.0 ± 1.0
L-N Operation Manual
M14×1.5 M16×1.5
137.0 ± 9.8 226.0 ± 9.8
14.0 ± 1.5 23.0 ± 2.0