Operator’s Manual Vehicle Maintenance CXU, CHU, GU, TD, MRU and LEU 7 Noise Control System, Operator Inspection and Maintenance Requirements A Noise Control System Maintenance Log is located in this manual. This log should be used to document all Noise Control System related maintenance, whether the maintenance results from a specific noise control system inspection, or a deficiency identified during another general maintenance event. If additional log space is needed, further entries may be added on a separate sheet of paper. Store these additions with the main log to preserve a comprehensive record.
It is recommended that copies of all noise emissions related maintenance invoices be retained. The following Noise Control System inspection and maintenance instructions contain suggested maintenance intervals. These intervals may need adjustment in order to best accommodate the specific vehicle usage. The following instructions only concern Noise Emissions related items and do not address or modify any general vehicle maintenance requirements. The following elements make up the Noise Control System:
Noise Shielding and Insulation Devices Cooling System Exhaust System/DPF System Air Intake/Air Induction System Engine Control, EGR and Fuel Systems Selective Catalytic Reduction (SCR) Tampering with Noise Control System 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 the acts that constitute tampering are the acts listed below: Removal, or rendering inoperative, of any exhaust components, including mufflers, heavy or double-wall exhaust tubing, flexible tubing or exhaust pipe clamping.