TP-6881 7/15 23Section 2 Scheduled Maintenance
2.5 Cooling System
The engine fan draws cooling air through the openings
in the sides and end near the battery. The alternator fan
draws cooling air through openings on the side w alls of
the enclosure. The cooling air mixes with the engine
exhaust and is discharged at the exhaust outlet. See the
service view in Section 1 for air intake and exhaust
locations. To prevent generator set damage caused by
overheating, keep the housing cooling inlets and outlets
clean and unobstructed at all times.
Note: Do not block the generator set cooling air inlets or
mount other equipment above them. Overheating
and severe generator damage may occur .
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1. Air intake
2. Exhaust outlet
1
2
FRONT VIEW
Figure 2-8 Cooling Air Intake and Exhaust
2.6 Exhaust System
Carbon monoxide.
Can cause severe nausea,
fainting, or death.
The exhaust system must be
leakproof and routinely inspected.
WARNING
Generator set operation. Carbon monoxide can cause
severe nausea, fainting, or death. Carbon monoxide is an
odorless, colorless, tasteless, nonirritating gas that can cause
death if inhaled for even a short time. Avoid breathing exhaust
fumes when working on or near the generator set. Never
operate the generator set inside a building. Never operate the
generator set where exhaust gas could seep inside or be
drawn into a potentially occupied building through windows, air
intake vents, or other openings.
Carbon monoxide detectors. Carbon monoxide can
cause severe nausea, fainting, or death. Install carbon
monoxide detectors on each level of any building adjacent to
the generator set. Locate the detectors to adequately warn the
building’s occupants of the presence of carbon monoxide.
Keep the detectors operational at all times. Periodically test
and replace the carbon monoxide detectors according to the
manufacturer’s instructions.
Carbon monoxide symptoms. Carbon monoxide can
cause severe nausea, fainting, or death. Carbon monoxide
is a poisonous gas present in exhaust gases. Carbon
monoxide is an odorless, colorless, tasteless, nonirritating gas
that can cause death if inhaled for even a short time. Carbon
monoxide poisoning symptoms include but are not limited to
the following:
D Light-headedness, dizziness
D Physical fatigue, weakness in
joints and muscles
D Sleepiness, mental fatigue,
inability to concentrate
or speak clearly, blurred vision
D Stomachache, vomiting, nausea
If experiencing any of these symptoms and carbon monoxide
poisoning is possible, seek fresh air immediately and remain
active. Do not sit, lie down, or fall asleep. Alert others to the
possibility of carbon monoxide poisoning. Seek medical
attention if the condition of affected persons does not improve
within minutes of breathing fresh air.
Hazardous noise.
Can cause hearing loss.
Never operate the generator set
without a muffler or with a faulty
exhaust system.
CAUTION
Hot engine and exhaust system.
Can cause severe injury or death.
Do not work on the generator set until
it cools.
WARNING
Servicing the exhaust system. Hot parts can cause
severe injury or death. Do not touch hot engine parts. The
engine and exhaust system components become extremely
hot during operation.
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