Operator`s manual

INTRODUCTION
24
Among the acts that constitute tampering are the acts listed below:
앫 Removal, or rendering inoperative, of any exhaust components,
including mufflers, heavy or double-wall exhaust tubing, flexible
tubing or exhaust pipe clamping.
앫 Removal, or rendering inoperative, of the temperature-modulated
cooling fan system.
앫 Removal of the cooling fan shroud.
앫 Removal, or rendering inoperative, of the air cleaner or air intake
in-line silencer.
앫 Removal of the sound deadening material from the hood or cab
tunnel.
앫 Removal, or rendering inoperative, of the engine speed governor
so as to allow engine speed to exceed the manufacturer's
specifications.
앫 Removal of splash shields located inside the wheel housings.
앫 Removal of engine block shields.
앫 Removal of engine crankcase shields or insulation.
앫 Removal of insulated rocker arm covers.
앫 Removal of transmission noise shields.
Noise Shielding and Insulation Devices
Maintenance
Ensure sound shielding and insulating devices are intact. Inspect
components for damage. Primary system components requiring noise-
related inspection include the hood, engine compartment insulating
materials (including hood insulation, bulkhead insulation, doghouse
insulation, etc.) splash shields, cab skirts, fender shields, and body
panels. Inspect all related fasteners, brackets, and clamps for damage
and tightness.
Regulatory Compliance
Acts that constitute tampering with the Noise Shielding and Insulation
Devices:
Removing or rendering inoperative the engine and/or transmission
noise deadening panels, shields or insulating materials.
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