must be of equivalent size, type and strength as original equipment and be designed specifi cally for such applications and systems. Replacement hardware, tubing, hose, fi ttings, etc. ▲ Use only genuine Bendix ® brand replacement parts, components and kits. Never remove a component or plug unless you are certain all system pressure has been depleted. ▲ Never connect or disconnect a hose or line containing pressure it may whip. ▲ Never exceed manufacturer’s recommended pressures. ▲ Following the vehicle manufacturer’s recommended procedures, deactivate the electrical system in a manner that safely removes all electrical power from the vehicle. If the vehicle is equipped with a Bendix ® AD-IS ® air dryer system, a Bendix ® DRM ™ dryer reservoir module, or a Bendix ® AD-9si ™ air dryer, be sure to drain the purge reservoir. ▲ If the work is being performed on the vehicle’s air brake system, or any auxiliary pressurized air systems, make certain to drain the air pressure from all reservoirs before beginning ANY work on the vehicle. Use only the proper tools and observe all precautions pertaining to use of those tools. ▲ Do not attempt to install, remove, disassemble or assemble a component until you have read, and thoroughly understand, the recommended procedures. Where circumstances require that the engine be in operation, EXTREME CAUTION should be used to prevent personal injury resulting from contact with moving, rotating, leaking, heated or electrically-charged components. When working in the engine compartment, the engine should be shut off and the ignition key should be removed. ▲ Stop the engine and remove the ignition key when working under or around the vehicle. Always wear personal protection equipment. ▲ Park the vehicle on a level surface, apply the parking brakes and always block the wheels. When working on or around a vehicle, the following guidelines should be observed AT ALL TIMES: WARNING! PLEASE READ AND FOLLOW THESE INSTRUCTIONS The Bendix ® ABS system does not replace the need for a skilled, alert professional driver, reacting appropriately and in a timely manner, and using safe driving practices.ĪBS Off-Road Switch and Indicator Lamp OperationĪutomatic Tire Size Calibration. The driver is always responsible for the control and safe operation of the vehicle at all times. HSA interfacesįIGURE 1 - BENDIX ® EC 80 ™ ABS AND ATC CONTROLLERS ATC utilizes Engine Torque Limiting (ETL) where the ECU communicates with the engine’s controller and/or Differential Braking (DB) where individual wheel brake applications are used to improve vehicle traction.īendix EC 80 ATC controllers also have the capability to provide a Hill Start Assist (HSA) feature. Bendix ® ATC can improve vehicle traction during acceleration, plus lateral stability while driving through curves. In addition to the ABS function, the ATC version of the Bendix EC 80 controller provides an Automatic Traction Control (ATC) feature. However, the Bendix EC 80 controller is able to pump the brakes on individual wheels (or pairs of wheels) independently, and with greater speed and accuracy than a driver. When excessive wheel slip, or wheel lock-up is detected, the Bendi圎C 80 controller will activate the Pressure Modulator Valves to simulate a driver pumping the brakes. By monitoring individual wheel turning motion during braking, and adjusting or pulsing the brake pressure at each wheel, the Bendix EC 80 controller is able to optimize slip between the tire and the road surface. ABS controllers are also known as Electronic Control Units (ECUs).īendix ® ABS uses wheel speed sensors, ABS modulator valves, and an ECU to control either four or six wheels of a vehicle. See SD-13-21021 for the Bendix ® eTrac ™ Automated Air Suspension Transfer Systemīendix ® EC 80 ™ ESP(+) Controllers will be featured in SD 13-4986.īendix ® EC 80 ™ ABS and ATC controllers are members of a family of electronic Antilock Braking System (ABS) devices designed to help improve the braking characteristics of air braked vehicles - including heavyand medium-duty buses, trucks, and tractors.
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