MAINTENANCE - What is the Air System? WARNING WARNING one. Failure to comply may result in death, personal injury, equipment or property damage. Do not attempt to modify, alter, repair or disconnect any component of the air system. Repairs or modifications to the air system, other than what is descri- bed in this section, should only be per- formed by an authorized dealer. Fail- ure to comply may result in death or personal injury. After completing any repairs to the air system, always test for air leaks, and check the brakes for safe operation before putting the vehicle in service. Failure to comply may result in death, personal injury, equipment or property damage.
3 WARNING Never attempt to disassemble a com- ponent until you have read and under- stood recommended procedures. Some components contain powerful springs and injury can result if not properly disassembled. Use only prop- er tools and observe all precautions pertaining to use of those tools. Failure to comply may result in death, person- al injury, equipment or property dam- age. WARNING WARNING Never connect or disconnect a hose or line containing air pressure. It may whip as air escapes. Never remove a component or pipe plug unless you are certain all system pressure has been depleted. Failure to comply may result in death, personal injury, equipment or property damage.
Prior to the removal of any air system component, always block and hold the vehicle by a secure means other than the vehicle's own brakes. Depleting air system pressure may cause the vehi- cle to roll unexpectedly resulting in an accident causing death or personal in- juries. Keep hands away from cham- ber push rods and slack adjusters, they may apply as system pressure drops. WARNING Never exceed recommended air pres- sure and always wear safety glasses when working with air pressure. Never look into air jets or direct them at any- 30 Y53-1272-1B1 (08/17)