UD Trucks QUESTER Series, Руководство пользователя

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7.CORRECT DRIVING OPERATION
7-4
When traveling downhill or shifting
down
When traveling downhill, use the
same gears that were used when
t r a v e l i n g u p t h e h i l l b u t i n
combination with the auxiliary brake
to ensure safe driving. If the vehicle
still generates too much speed, use
the foot brake and maintain a safe
speed at all times.
•
Do not drive downhill with the
transmission in neutral position.
• Ensure care to avoid engine over-
run when driving downhill.
• The tachometer’s red zone shows
the overrun speed range, ensure
that the indicator does not enter
the red zone.
Operating precaution engine rpm
1. Green zone - 900 to 1450 rpm
2. Red zone - 2150 and above
Always maintain the engine rpm in
green zone while driving. When the
engine rpm exceeds the allowable
maximum rpm, the warning message
display will turn on and the overrun
warning buzzer sounds to warn the
driver. In this case, reduce engine
speed.
Engine overrun
Brakes
DANGER
Do not engage the auxiliary
brake when the road is slippery
(due to snow, water, etc.) Failure
t o c o m p l y c a n l e a d t h e r e a r
wheels to lock up and cause the
vehicle to skid causing accident.
CAUTION
Overrun is when the engine is
running at a speed that exceeds
the engine’s maximum rpm. Do
n o t e x c e e d t h e m a x i m u m
allowable rpm. Driving beyond
t h i s r a n g e o v e r s t r e s s e s t h e
engine components and could
cause the engine to malfunction.
WARNING
Avoid continuously using the
foot brake for a long period of
time. The brake drums or linings
could overheat and reduce the
braking effect.