Regional Haul Model Operator's Manual - Peterbilt Motors Company
Regional Haul Model Operator's Manual - Peterbilt Motors Company
Regional Haul Model Operator's Manual - Peterbilt Motors Company
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PREVENTIVE MAINTENANCE<br />
ENGINE COOLING SYSTEM<br />
Fan Drive and Blade<br />
Fan Blade Clearance: Around the fan shroud, the recommended<br />
distance is 1 in. (25 mm) from front edge of any<br />
fan blade-to-radiator side member. Minimum clearance is<br />
3/4 in. (19 mm).<br />
• Rear edge of any blade must be no closer than 3/8 in.<br />
(9 mm) to the nearest engine component. If this cannot<br />
be obtained, the fan spacer or fan is not correct.<br />
• The leading edge of any fan blade must be 1 in. (25<br />
mm) from the inside edge of the shroud.<br />
Exhaust System<br />
The exhaust system is part of the noise control system.<br />
Periodically check the exhaust for wear and loose or missing<br />
parts. For details, see “Noise and Emission Control”<br />
on page 252.<br />
WARNING! The exhaust piping and Diesel<br />
Particulate Filter can become extremely hot<br />
during engine operation and can cause death<br />
or personal injury including serious burns to<br />
the skin. Allow adequate cooling time before<br />
working on or near any part of the exhaust<br />
system.<br />
Engine Cooling System<br />
Your engine’s cooling system is standard with Extended<br />
Life Coolant (ELC). ELC consists of a mixture of ethylene<br />
glycol, water, and organic acid technology chemical inhibitors.<br />
ELC prevents corrosion and scale formation as well<br />
as provides freezing and boiling point protection.<br />
CAUTION: The engine cooling system has<br />
very specific maintenance and inspection<br />
requirements. Failure to follow requirements<br />
can damage the engine. Engine damage can<br />
include but is not limited to:<br />
• Freezing<br />
• Boiling<br />
• Corrosion<br />
• Pitted cylinder liners<br />
This information is found in the engine manufacturers<br />
owner’s manual. It is the owner’s<br />
responsibility to follow all requirements listed<br />
in the engine manufacturers owner’s manual.<br />
<strong>Regional</strong> <strong>Haul</strong> (R05/10) Y53-6033 – 175 –