OPERATION UNDER UNUSUAL CONDITIONS - CONTINUED
OPERATE ON SNOW AND ICE - CONTINUED
After driving through slush or water, drive slowly and test brakes. Keep
driving slowly, maintaining moderate pressure on service brake pedal to
create a slight drag. When brakes are dry and operating properly, resume
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.
Shifts from N (Neutral) to D (Drive) or to R (Reverse) cannot occur if engine
speed is above idle. Reduce engine speed to idle and shift again.
If vehicle becomes stuck or tires start spinning, it may be possible to rock
vehicle out. Place inter-axle lockout control valve lever in LOCK position
and shift transmission to D (Drive). Apply light, steady throttle (never full
throttle). When vehicle has moved as far as it will go, apply service brakes
and allow engine to return to idle speed. Shift transmission to R (Reverse).
Again, apply light, steady throttle and allow vehicle to move rearward as far
as it will go. Apply service brakes and allow engine to return to idle speed.
This procedure can be continued as long as each directional shift moves
vehicle a greater distance. If not, vehicle should be towed from its position.
Ease up on accelerator, leaving vehicle in gear.
Apply service brakes lightly and evenly. DO NOT pump service brake
DO NOT use engine brake if road surfaces are slippery. Using engine brake
on wet, icy, or snow-covered roads could result in loss of vehicle control.
Failure to follow this warning could result in death or injury to personnel or
damage to equipment.
Always avoid sudden braking and use of engine brake on slick roads.
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, continue in a safe manner and reduce speed to
40 mph (64 kph) until mission is complete. When mission is complete, notify
Unit Maintenance to clear ABS fault and restore full ABS capabilities.