Volvo VNL 780 Operator's Manual page 34

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24
INTRODUCTION
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.).
Engine Control, EGR and Fuel Systems
Acts that constitute tampering with Engine Control, EGR and Fuel Systems:
Removing rendering inoperative, or modifying the engine control system such as the ECU,
EGR system components, or fuel system components, in order to allow the engine to operate
outside of the manufacturer's specifications is not allowed and violates both warranty and
legislation.

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