NOISE EMISSIONS WARRANTY, PROHIBITED TAMPERING ACTS
AND MAINTENANCE
On January 1, 1978, Federal regulation became effective governing the
noise emission on trucks over 4,536 kg (10,000 lbs.) GVWR (Gross
Vehicle Weight Rating). The following statements concerning prohibited
tampering acts and maintenance, and the noise warranty found in the
Warranty Facts Booklet, are applicable to complete chassis cabs over
4,536 (10,000 lbs.) GVWR.
Tampering with noise control system prohibited
Federal law prohibits the following acts or the causing thereof: (1) The
removal or rendering inoperative by any person other than for purposes
of maintenance, repair or replacement of any device or element of design
incorporated into any new vehicle for the purpose of noise control prior
to its sale or delivery to the ultimate purchaser or while it is in use, or
(2) the use of the vehicle after such device or element of design has
been removed or rendered inoperative by any person.
Among those acts which the U.S. Environmental Protection Agency may
presume to constitute tampering are the acts listed below:
•Removal of hood blanket, fender apron absorbers, fender apron
barriers, underbody noise shields or acoustically absorptive material.
•Tampering or rendering inoperative the engine speed governor, so as
to allow engine speed to exceed manufacturer’s specifications.
General maintenance information
37
Any adverse condition should be brought to the attention of your dealer
or qualified service technician as soon as possible for the proper service
advice. The owner maintenance service checks are generally not covered
by warranties so you may be charged for labor, parts or lubricants used.
Maximum Oil Change Interval:
Normal Schedule: 7,500 miles or 6 months, whichever occurs first.
Special Operating Conditions: 5,000 miles or 6 months, see appropriate
schedule.
Check every month:
•Check function of all interior and exterior lights
•Check tires for wear and proper air pressure
•Check engine oil fluid level
•Check windshield washer solvent fluid level
•Check and drain fuel filter/water separator
Check every six months:
•Check lap/shoulder belts and seat latches for wear and function
•Check air pressure in spare tire
•Check that externally-mounted spare tire is tight (see Owner’s Guide)
•Check power steering fluid level
•Check washer spray, wiper operation and clean all wiper blades
•Check parking brake for proper operation
•Check and lubricate all hinges, latches and outside locks
•Check and lubricate door rubber weatherstrips
•Check and clean body and door drain holes
•Check safety warning lamps (brake, ABS, air bag, safety belt) for
operation
•Check cooling system fluid level and coolant strength
•Check battery connections and clean if necessary
•Check clutch fluid level, if equipped
General Owner’s Information
49
