OPERATION UNDER USUAL CONDITIONS - CONTINUED
DRIVING TIPS - CONTINUED
Excessive use of service brake to control downhill speed will result in loss of
braking power due to heat build-up.
If you experience a total loss of braking due to heat build-up, apply engine
brake (six cylinders), upshift as engine speed approaches 2100 rpm, and in
(D) Drive position continue to apply engine brake and maintain directional
control of vehicle.
Care must be exercised if tractor or trailer ABS light comes on while driving,
possibly indicating an ABS malfunction. Although the regular/normal vehicle
system is still fully operational, you should continue in a safe manner and
reduce speed to 40 mph (64 kph), until the mission is complete. When the
mission is complete, report to Unit Maintenance to clear the ABS fault and
restore full ABS capabilities.
The anti-lock brake system (ABS) helps in controlling wheel lockup and
tire skidding during an emergency.
Engage Inter-axle Lockout as Required.
DO NOT actuate inter-axle lockout control valve while tires are spinning. DO
NOT operate vehicle continuously with inter-axle lockout control valve
locked during extended good road conditions. Damage to axle gearing and
excessive tire wear could result.
If a difficult stretch of road approaches, stop and inspect it carefully before driving
on it. Select transmission gear range that best suits road condition and place inter-
axle lockout control valve lever in LOCK position.
To lock inter-axle, ease up on accelerator pedal momentarily and move inter-axle
lockout control valve lever to LOCK position while maintaining vehicle speed. Pro-
ceed over poor road conditions with caution.
To unlock inter-axle, place inter-axle lockout control valve lever in UNLOCK posi-
tion and remove foot from accelerator.