AIR SYSTEM WARNING! WARNING! compressed air then goes to the reservoirs to be stored until needed. When you operate your air brakes, the stored compressed air flows into the chambers where it is used to apply your truck and trailer brakes. That is why, when you push down on your brake pedal, you don’t feel the same amount of pressure on the pedal that you do when you apply the brakes on your car. All you are doing on your truck is opening an air valve to allow air to flow into the brake chambers. Never attempt to disassemble a component until you have read and understood recommended proce- dures. Some components contain powerful springs and injury can re- sult if not properly disassembled.
Use only proper tools and observe all precautions pertaining to use of those tools. Failure to comply may result in death, personal injury, equipment or property damage. Completely bypassing a Bendix® AD-IS air dryer will bypass the sys- tem’s pressure protection valves. This could lead to loss of air pres- sure or damage to the vehicle’s air system, which could cause an accident involving death or per- sonal injury. Always adhere to the manufacturer’s procedure if it is necessary in an emergency to tem- porarily bypass an AD-IS-series air dryer. Failure to comply may result in death, personal injury, equipment or property damage.
Contamination of the air supply system is the major cause of problems in air-operated components such as brake valves, and suspension height control valves. To keep contaminants to the lowest possible level, follow these maintenance procedures. 5 The operation of the vehicle’s braking system and many vehicle accessories depends upon the storage and application of a high-pressure air supply. Your vehicle’s compressor takes outside air and compresses it, usually to 100-120 psi (689-827 kPa). The 5-58 Y53-6077-1B1 (03/17)