drIvInG & safety — 2
18
2 0 0 8 K n I G h t
Fuel/Air mixture
- At a given RPM,
the engine, even with the help of a
turbo-charger, can only introduce a
given volume of air into the combustion
chamber. This volume of air can
efficiently combine with only so much
fuel; so adding more fuel to the engine
only wastes it.
Determine ranges where the motorhome works
best by driving long grades when temperatures
remain stable for the duration of the climb.
IMPORTANT SAFETY TIP
Turn on the four way flashers if road
speed degrades to the point where the
motorhome is moving significantly
under the posted speed. Use pullouts
if traffic is building. Once in a pullout,
if there is sufficient clearance for
safety, idle the engine for a while to
allow the exhaust and the turbo to
cool. While these are cooling, the
transmission will also cool. Monitor the
gauges while waiting.
Descending a Grade:
Prepare to descend a grade at the crest of the
hill. Observe any signs indicating grade angle
and duration. The sign may suggest maximum
downhill speed according to Gross Combined
Weight (the combined weight of the motorhome
and a trailer/tow car). At the crest of the hill,
manually shift the transmission into a lower
gear.
DO NOT
allow the motorhome to gain
momentum before slowing down.
Use the exhaust brake to help maintain a slow,
safe downhill speed. Located on the Driver Side
console is an exhaust brake switch. When the
exhaust brake switch is on, the exhaust brake
will activate when the throttle is released. With
exhaust brake applied, road speed may increase
until the transmission automatically shifts to
the next higher gear. Apply the brakes using
moderately heavy pressure on the brake pedal
to reduce speed and manually downshift to
maintain a safe, slow speed.
DO NOT
pump the
brakes, as this can result in a loss of air pressure.
Avoid riding the brakes, as this can cause brakes
to overheat. Either method can result in brake
failure or loss of brake effeciveness.
Night Driving:
Be well rested and alert while driving. If
necessary, find a safe stopping place to
rest until ready to continue.
Avoid using interior lights while driving
that create a glare on the windshield and
decrease visibility.
Dim dash lights to a comfortable level to
reduce glare.
Extreme Heat and Hot Weather Conditions:
Frequently observe all gauges. Variations
from normal conditions should be
promptly evaluated.
Check tire pressure before traveling in
hot conditions. Tire air pressure increases
with heat.
DO NOT
let air out of a hot
tire. When the tires cool down they
will return to the correct/previous tire
pressure.
Pay extra attention to hoses and belts
that are more susceptible to fatigue in
extreme heat.
Winter and Cold Climate Conditions:
The motorhome should be prepared for
cold weather use.
Keep speeds slow and steady. Make
moves gradually and increase visual
distance for a gain in reaction time.
If road or weather conditions are
treacherous, find a safe stopping place
and wait for conditions to improve.
Avoid downshifting or using the exhaust
brake on wet or slippery surfaces, which
can cause the drive wheels to skid.
Wiper blades should be in good
condition. Fill the washer reservoir with
antifreeze formula window
washer fluid.
Use mirror heat to keep mirrors
clear.
Remove any ice build-up from
the entry step to avoid accidental
slipping.
Wet Conditions:
Worn or improperly inflated tires
can increase the risk of hydroplaning.
Heavy rain or deep standing water can
cause brakes to apply unevenly or grab.
Refueling:
Truck stops are good refueling points for
motorhomes.
Check overhead clearance heights before
pulling through the fuel island.
Be aware of concrete/steel posts installed
around fuel islands.
080498n
Located
on Driver’s
Console
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