Brakes IMPORTANT: If any of the ABS warning lights do not work as described above, or come on while driving, repair the ABS system immediately to en- sure full antilock braking capability. cal problem with the foundation brake components or the adjuster is improperly installed. Visit a repair facility as soon as possible when brakes equipped with automatic slack adjusters are determined to be out of adjustment. During emergency or reduced-traction stops, fully de- press the brake pedal until the vehicle comes to a safe stop; do not pumpthe brake pedal. With the brake pedal fully depressed, the ABS system will control all wheels to provide steering control and a reduced braking dis- tance.
WARNING Manually adjusting an automatic slack adjuster to bring the pushrod stroke within legal limits is likely masking a mechanical problem. Adjustment is not repairing. In fact, continual adjustment of automatic slack adjusters may result in premature wear of the adjuster itself. Further, the improper adjustment of some automatic slack adjusters may cause internal damage to the adjuster, thereby preventing it from properly functioning. Although the ABS system improves vehicle control dur- ing emergency braking situations, the driver still has the responsibility to change driving styles depending on the existing traffic and road conditions.
For example, the ABS system cannot prevent an accident if the driver is speeding or following too closely on slippery road surfaces. Automatic Slack Adjusters Automatic slack adjusters are required on all vehicles equipped with air brakes manufactured after October 20, 1994. Automatic slack adjusters should never be manually adjusted except during routine maintenance of the foundation brakes (e.g., replacing shoes), during slack adjuster installation or in an emergency situation. When the brake pushrod stroke exceeds the legal brake adjustment limit on a vehicle, there is likely a mechani- 7.4