Ford 2002 F650 Owner's Manual page 233

Vehicle System
Engine Air Induction
System
Exhaust System
Engine Cooling System
MAINTENANCE
Instructions for maintenance and service of the noise control system
have been included in the Required Maintenance Services and in the
General Maintenance Checklist. To further help minimize noise emissions
degradation throughout the life of the vehicle, Ford Motor Company
recommends that this vehicle should be operated in the manner
described within the Owner Guide. Caution should be exercised by the
owner when installing replacement parts to be sure that a tampering act
(as outlined above) is not committed. Note any inspection and service
performed in the Maintenance Record.
EMISSIONS INFORMATION LABEL
Emissions information appears on the Important Engine Information
Decal located on or near the engine.
SCHEDULED MAINTENANCE SERVICES
Maintenance service adjustments must conform to specifications
contained in this manual, and those shown on the Important Engine
Information Decal. The following services are to be performed at
General Maintenance Information
Acts
Removal of the air duct, silencer, air
cleaner, and/or air cleaner element and
baffle in air cleaner; re-indexing of air
cleaner.
Removal or rendering inoperative exhaust
system components including the catalytic
converter - muffler assembly, inlet pipe,
outlet pipe, resonator and flexpipe.
Rotation of horizontal exhaust system
directional outlet pipe to cause the exhaust
to be emitted in a direction other than
downward.
Removal or rendering inoperative the fan
clutch. Removal or modification of the fan
shroud. Replacing a fixed fan with a fan of
increased diameter, different number of
blades or different pitch width.
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