2-63 DRIVING
10) When descending a slope, shift to lower gear to
gain retardation effect of the engine. It is avisable
Brake
pedal
Exhaust
brake
MTB0421
to use the exhaust brake and engine brake in com-
bination when descending a slope. Frequent use
of foot brakes while descending a long slope will
cause brake drum overheating and consequential
malfunction of the brake.
Caution
Special care should be taken when descending a
slope, particularly when shifting down into lower
gear, as the engine is liable to overrun. Excess
7. TRAVEL ON HIGHWAY
engine rpm may result in trouble with each part of
the engine, especially possible breakage of valve
spring and push rod.
The following checks should be performed to maintain
safe and dependable vehicle operation.
1) Check before driving
Rib Lug Rib/Lug More special care should be taken to drive on
pattern pattern pattern highway than on urban road. Make the thorough
inspection according to "DAILY CHECK BEFORE
MTB0440 DRIVING".
Caution
2) Tire
It is dangerous to drive your vehicle with
tires whose treads have been worn out
excessively, because the vehicle may lose
traction.
Limit of use : The depth of the tread
grooves should be more than 3.2mm.
Note
You must fully understand vehicle
features in traveling on highway.
1. Acceleration
As running resistance increases
greatly while traveling on highway,
the vehicle should be accelerated
with allowance for its engine power.
2. Grade ability
Maintain suitable engine rpm taking
into account the relation of grade
and maximum speed at each
gearshift position.
3. Fuel consumption
Check fuel level before long
distance travel.
Heat generation depends on vehicle speeds and
load weights. For the vehicle which travels
frequently on highway, rib pattern tires are
preferable.
3) Check while traveling on highway
Generally, since driving on highway is more dan-
gerous than on the urban road, you should be more
alert and also have a composed and calm attitude.
(1) Speed perception
On highway, driver's speed perception is liable to
become dull because its road surface is even
and commands a wider prospect than urban
road does. Always watch speedometer readings
for vehicle speeds.
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