IMPORTANT INFORMATION
- 1–15 -
Red
zone
Drive the vehicle at the appropriate speed
so that the tachometer does not indicate
the red zone.
NOTE
Engine brake is a braking force which
is applied when the accelerator pedal
is released while the vehicle is
running. The lower gears apply the
stronger engine brake force.
When going down a long slope
• When going down a long slope, use
exhaust brake (if equipped) and engine
brake at the same time. Depressing the
foot brake for a long time may lead to
brake fade or vapor lock, causing poor
brake force.
• Use of exhaust brake (if equipped) and
engine brake provided by the low gears
are more effective than use of foot
brake because they reduce the load on
the foot brake and apply more braking
force. However, be careful not to
overrun the engine.
NOTE
Vapor lock
Frequent use of the foot brake makes
the brake system overheat, and the
brake fluid boils due to this heat, then
air bubbles form in the brake hose. In
this case, the hydraulic pressure is not
transmitted to the wheel cylinders
though the brake is depressed
because only air bubbles are
compressed, resulting in a sudden
drop in the braking force.
Brake fade
Frequent use of the foot brake makes
the brake system overheat, and the
friction on the friction surface of brake
system reduces due to this heat,
resulting in a drop in the braking force.
QKR-IE-14424805234ALL.indb1‒15QKR-IE-14424805234ALL.indb1‒15 2017/09/2713:34:382017/09/2713:34:38
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