Paccar PX 8, Operator'S Manual, Page: 48 / 94

Operating Instructions
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Y53-1030A 12/09 PACCAR
Engine Shutdown
General Information
NOTE: Allow the engine to idle 3 to 5 minutes before
shutting it off after a full-load operation. This allows
adequate cool down of pistons, cylinders, bearings,
and turbocharger components.
Electromagnetic Interference (EMI)
General Information
Some engine applications utilize accessories (CB radios,
mobile transmitters, etc.) that generate and use radio
frequency energy that, if not installed and used properly, can
cause electromagnetic interference (EMI) conditions to exist
between the accessory and PACCAR electronic controlled
fuel system. PACCAR is not liable for any performance
problems with either the fuel system or the accessory due to
EMI. EMI is not considered by PACCAR to be an engine
failure and therefore is not warrantable.
System EMI Susceptibility
PACCAR’S electrical system design will protect your engine
from most, if not all, electromagnetic energy-emitting devices
that meet the Federal Communications Commission legal
requirements.
System EMI Radiation Levels
Your PACCAR product has been designed to emit minimum
electromagnetic energy. Electronic components are required
to pass various PACCAR EMI specifications. Testing has
shown that when the engine is properly maintained, it will not