Holiday 2002 NEPTUNE, Руководство пользователя

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Chassis Information
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2 0 0 2 N E P T U N E
10 • 293
Auxiliary braking devices are designed to supplement a standard wheel
braking system. These devices are not designed to bring the motorhome to a
complete stop; however, they can assist in controlling the speed of the
motorhome. Proper use of the auxiliary braking device can save on costly serv-
ice brake repairs.
The exhaust brake, located in the exhaust system of the engine, is designed
to supplement the primary braking system. Various features and benefits are
obtained with application of the exhaust brake. Attached directly to the engine
turbocharger, the exhaust brake is activated when the Exhaust Brake switch at
the driver’s console is switched "
ON " and the throttle is " RELEASED ."
Turning the Exhaust Brake switch ON will not disengage the cruise control.
Tapping or applying the service brake pedal will disengage the cruise control.
The amount of braking power developed, which is applied to the drive
wheels only, is relative to the engine speed (RPM). When the exhaust brake
activates, a butterfly plate inside the exhaust brake closes restricting the flow
of exhaust gases increasing back pressure in the engine resulting in powerful
engine braking action. This braking action reduces the use of the service brake
and results in service brake conservation. The exhaust brake is not a substitute
for the service brake and cannot stop the motorhome completely. It can, how-
ever, be used continuously on steep downhill grades or a long freeway off
ramp.
When the exhaust brake is activated, the sound of the engine may vary and
the slowing effect may or may not be felt in high gear. Once deactivated, nor-
mal throttle response with a slight change in RPM should occur. When the
exhaust brake is activated going down a hill, the exhaust brake will help con-
trol road speed and the transmission automatically downshifts to the next lower
gear. Downshifting will automatically continue from high gear down to second
gear. Certain road conditions and engine speeds may require the transmission
be manually down shifted in order to generate adequate engine RPM and
increase the engine braking effect. Use of the exhaust brake system allows the
engine temperature to drop while going downhill. The exhaust brake should be
turned off prior to starting the engine and when the engine is left idling for
long periods of time.
CAUTION: Use of the exhaust brake on wet and slippery
surfaces can result in over braking and loss of traction.
BRAKES
- EXHAUST BRAKE
SYSTEM
BRAKE -
AUXILIARY
OM090392