![Ford F-650 Скачать руководство пользователя страница 130](http://html1.mh-extra.com/html/ford/f-650/f-650_owners-manual_2318309130.webp)
E215226
A switch on the instrument panel, in
combination with the accelerator and
clutch pedal, allow the operator to make
maximum use of the exhaust brake in the
following conditions:
•
Off-highway driving.
•
Mountain driving.
•
Heavy traffic.
•
High-speed highway driving.
To switch the brake on, push the switch
up. Push the switch down to turn it off.
While approaching a steep grade, make
sure that the exhaust brake switch is in the
on position. The exhaust brake begins
working as soon as you remove your foot
from the accelerator pedal.
Before descending a hill or steep grade,
always select the proper gear. If you take
the transmission out of gear while
descending, it is possible that you cannot
select another gear because of maximum
governed RPM.
Make sure the engine speed does not
exceed the maximum allowable engine
RPM. Exceeding the maximum allowable
engine RPM can result in damage to the
engine. Apply the service brakes to reduce
the engine RPM or make a slower descent
by using a lower gear.
While going down the grade, use a low
enough gear to descend safely with a
minimum application of the service brakes.
As a general guideline, use the same gear
as you use to ascend the hill.
Exhaust Brake Operating
Characteristics
The exhaust brake turns on when you
remove your feet from both the accelerator
and clutch pedals and the exhaust brake
switch is in the on position. The following
conditions exist if the brake is operating
properly:
•
A slight change in engine sound when
the exhaust brake turns on.
•
A smooth braking effect. Do not expect
a retarding effect similar to sudden,
hard application of the service brakes.
•
The retarding force possibly felt acting
against your body during brake
application (depending on the grade
and vehicle load). This force is actually
preventing the vehicle from going much
faster.
•
Engine temperature remaining in the
normal operating range.
•
The tachometer showing a drop in
engine RPM (depending on grade and
vehicle load) during a descent.
•
A decrease in road speed when
applying the exhaust brake during a
descent, except when your vehicle is
carrying a heavy load or the grade is
extremely steep. In these instances,
you may need to apply the service
brakes occasionally.
127
F650750 (TBC), enUSA, First Printing
Brakes