2-56. EMERGENCY PROCEDURES (CONT)
Rear axle service brakes will not operate if REAR BRAKE AIR pressure
gage reads below 65 psi (448 kPa). Rear axle braking will be provided
by rear spring brakes for a limited time.
Allow greater stopping
distance. Discontinue vehicle operation as soon as possible. Failure
to comply may result in serious injury or death to personnel.
(2) If REAR BRAKE AIR pressure gage (2) reads below 65 psi (448 kPa), REAR BRAKE
AIR indicator (4) illuminates, and audible alarm (5) sounds:
(a) Leave additional distance between vehicles.
(b) Apply brake pedal (6) earlier than usual when slowing vehicle.
(c) Downshift to lower gear range using WTEC II TEPSS (7) or WTEC III TPSS (7).
(d) Notify Unit Maintenance as soon as possible.