Volvo VN, Operator'S Manual

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INTRODUCTION 11
WARNING
Hot engine! Avoid all movable parts or
hot engine parts, exhaust gases, and/or
fluids. A hot engine, exhaust, and/or
fluids can cause burns.
Maintenance
Make sure the exhaust system is intact. Inspect for damage, misalignment and/or
leakage. Primary system components requiring noise related inspection include
exhaust manifold, turbocharger, and all exhaust system (rigid and flexible) piping.
Closely check the system for exhaust leaks. Special attention should be given to all
welds, seams, gaskets, support points, clamps, couplings and connections.
Inspect all exhaust system fasteners, brackets, and clamps for damage and tightness.
Regulatory Compliance
Acts that constitute tampering with the Exhaust System:
Removing or rendering inoperative exhaust system components (such as the pipes,
clamps, etc.).
Air Intake/Air Induction System
Maintenance
Make sure the air intake system is intact. Inspect components for damage,
misalignment and/or leakage. Primary system components requiring noise related
inspection include the air cleaner housing, air cleaner element, turbocharger, charge
air cooler and intake manifold.
Also inspect all ducts, pipes, hoses, tubing and elbows used to interconnect the
system. Special attention should be given to all welds, seams, gaskets, support points,
clamps, couplings and connections.
Inspect all intake system fasteners, brackets, and clamps for damage and tightness.
Regulatory Compliance
Acts that constitute tampering with the Air Intake/Air Induction System:
Removing or rendering inoperative air intake/induction system components (filter,
filter housings, ducts, etc.).