08-01-2022 Council Work Session Packet

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The insulation shall act as a noise barrier, absorbing noise thus keeping the decibel level in the cab well within NFPA recommendations. As an additional benefit, the insulation shall assist in sustaining the desired temperature within the cab interior. The engine tunnel insulation shall measure approximately 0.30 inch thick including a multi -layer foil faced glass cloth and polyester fiber layer. The foil surface acts as protection against heat, moisture and other contaminants. The insulation shall meet or exceed FMVSS 302 flammability test. The insulation shall be cut precisely to fit each section and sealed for additional heat and sound deflection. The insulation shall be held in place by acrylic pressure sensitive adhesive. INTERIOR TRIM FLOOR The floor of the cab shall be covered with a multi -layer mat consisting of 0.25 inch thick sound absorbing closed cell foam with a 0.06 inch thick non -slip vinyl surface with a pebble grain finish. The covering shall be held in place by a pressure sensitive adhesive and aluminum trim molding. All exposed seams shall be sealed with silicone caulk matching the color of the floor mat to reduce the chance of moisture and debris retention. CAB MODIFICATION The cab floor and engine tunnel shall include an addition into the cab interior to provide clearance for chassis special option design provisions. The pocket shall be constructed of 0.19 inch thick aluminum, covered by floor mat. The pocket shall span the width of the engine tunnel and shall be 5.52 inches high and 7.60 inches long rearward of the tunnel. INTERIOR TRIM The cab interior shall include trim on the front ceiling, rear crew ceiling, and the cab walls. It shall be easily removable to assist in maintenance. The trim shall be constructed of insulated vinyl over a hard board backing. HEADER TRIM The cab interior shall feature header trim over the driver and officer dash constructed of 5052-H32 Marine Grade, 0.13 inch thick aluminum. TRIM CENTER DASH The main center dash area shall be constructed of 5052-H32 Marine Grade, 0.13 inch thick aluminum plate. There shall be four (4) holes located on the top of the dash near each outer edge of the electrical access cover for ventilation. The center dash electrical access cover shall include a gas cylinder stay which shall hold the cover open during maintenance. TRIM LH DASH The left hand dash shall be constructed of 5052-H32 Marine Grade, 0.13 inch thick aluminum plate for a perfect fit around the instrument panel. For increased occupant protection the extreme duty left hand dash utilizes patent pending break away technology to reduce rigidity in the event of a frontal crash. The left hand dash shall offer lower vertical surface area to the left and right of the steering column to accommodate control panels. TRIM RH DASH The right hand dash trim shall be constructed of 5052-H32 Marine Grade, 0.13 of an inch thick aluminum plate and shall include a Mobile Data Terminal (MDT) provision.