Yanmar L48N Operation Manual page 68

PERIODIC MAINTENANCE
CAUTION
• When the engine is operated in dusty
conditions, clean the air cleaner
element more frequently.
• NEVER operate the engine with the air
cleaner or element(s) removed. This
may cause foreign material to enter the
engine and damage it.
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.
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L-N Operation Manual