Yanmar L48N Operation Manual page 22

SAFETY
CAUTION
Observe the following environmental
operating conditions to maintain engine
performance and avoid premature
engine wear:
• NEVER run the engine if the ambient
temperature is above +40°C or below -
10°C
If the ambient temperature exceeds
+40°C the engine may overheat and
cause the engine oil to break down.
If the ambient temperature falls
below -10°C rubber components
such as gaskets and seals will
harden causing premature engine
wear and damage.
Contact your authorized Yanmar
industrial engine dealer or
distributor if the engine will be
operated in either temperature
extreme.
• Contact your authorized Yanmar
industrial engine dealer or distributor
if you need to operate the engine at
high altitudes. At high altitudes the
engine will lose power, run rough, and
produce exhaust gases that exceed
the design specifications.
10
• Only use the engine oil specified.
Other engine oils may affect warranty
coverage, cause internal engine
components to seize, or shorten
engine life.
• Prevent dirt and debris from
contaminating the engine oil. Carefully
clean the oil cap / dipstick and the
surrounding area before you remove
the cap.
• NEVER mix different types of engine
oil. This may adversely affect the
lubricating properties of the engine oil.
• NEVER overfill. Overfilling may result
in white exhaust smoke, engine
overspeed or internal damage.
• NEVER overfill the engine with engine
oil.
• ALWAYS keep the oil level between the
upper and lower lines on the oil
cap / dipstick.
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For maximum engine life, Yanmar
recommends that when shutting the
engine down, you allow the engine to
idle, without load, for 5 minutes. This
will allow the engine components that
operate at high temperatures, such as
exhaust system, to cool slightly before
the engine itself is shut down.
NEVER use an engine starting aid such
as ether. Engine damage will result.
CAUTION
CAUTION
CAUTION
CAUTION
L-N Operation Manual
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