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REV: 04-29-25 LF <br />REAR BRAKE CHAMBERS <br />The rear axle shall include TSE 30/36 brake chambers which shall convert the energy of <br />compressed air into mechanical force and motion. This shall actuate the brake camshaft, which <br />in turn shall operate the foundational brake mechanism forcing the brake shoes against the brake <br />drum. The TSE Type 36 brake chamber has a 36.00 square inch effective area. <br />AIR COMPRESSOR <br />The air compressor provided for the engine shall be a Wabco® SS318 single cylinder pass- <br />through drive type compressor which shall be capable of producing 18.7 CFM at 1200 engine <br />RPMs. The air compressor shall feature a higher delivery efficiency translating to more air delivery <br />per horsepower absorbed. The compressor shall include an aluminum cylinder head which shall <br />improve cooling, reduce weight and decrease carbon formation. Superior piston and bore finishing <br />technology shall reduce oil consumption and significantly increasing the system component life. <br />AIR GOVERNOR <br />An air governor shall be provided to control the cut-in and cut-out pressures of the engine mounted <br />air compressor. The governor shall be calibrated to meet FMVSS requirements. The air governor <br />shall be located on the air dryer bracket. <br />AUXILIARY AIR RESERVOIR <br />One (1) auxiliary air reservoir with a 1200 cubic inch capacity shall be installed on the chassis to <br />act as an additional reserve supply to the air system for air horn, air tool, or other non-service <br />brake use. The reservoir shall be isolated with a 90 PSI pressure protection valve on the reservoir <br />supply side to prevent depletion of the air to the air brake system. <br />MOISTURE EJECTORS <br />Manual pet-cock type drain valves shall be installed on all reservoirs of the air supply system. <br />AIR SUPPLY LINES <br />The air system on the chassis shall be plumbed with color coded reinforced nylon tubing air lines. <br />The primary (rear) brake line shall be green, the secondary (front) brake line red, the parking <br />brake line orange and the auxiliary (outlet) will be blue. <br />Brass compression type fittings shall be used on the nylon tubing. All drop hoses shall include <br />fiber reinforced neoprene covered hoses. <br />AIR INLET CONNECTION <br />An air connection for the shoreline air inlet shall be supplied. <br />AIR INLET LOCATION <br />The air inlet shall be installed in the left-hand side middle front step in the rearward position. <br />ATTY/AGR.2025.089/Fire Apparatus Solutions (Purchase of Spartan-LTC 105' TDA) (Page 47 of 150)