Holiday Neptune 2004, Owner'S Manual

Page: 360 / 416

360 • SECTION 10 --- CHASSIS INFORMATION NEPTUNE 2004
The parking brake system is activated when the push-pull control knob
(located on the driver's left console panel) is pulled. When the knob is
pushed, the brake is released. Prior to driving, allow time for the air
compressor to build up sufficient air to shut off the air-warning lamp.
NOTE: When the park brake is released, the Park illumination
lamp will remain lit until air system pressure is above 65 psi.
WARNING: When parked, if the air tank is not depleted, there is
the possibility of an accidental release of the parking brake.
Traveling with small children and/or pets may require a small
block to be fabricated to prevent accidental release. The block
should be placed under the knob on the dash panel. A wooden
clothespin, clasped at the base of the shaft, will work.
Using the Parking Brake:
Bring the motorhome to a complete stop using the service brakes and
hold the brake pedal down. Allow the engine to come to a low idle (500 to
800 RPM). Apply the parking/emergency brake by pulling up on the
knob. When the parking/emergency brake is set, select N (Neutral) on the
shifter panel. Release the service brake pedal.
NOTE: Chock all the wheels securely if the motorhome is left
unattended.
Auxiliary braking systems are designed to supplement the 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.
Use of the engine braking system can save on costly service brake repairs.
The integrated exhaust brake system is an auxiliary braking device that is part
of the Variable Geometry Turbocharger. The exhaust brake operates by using a
dash switch. The dash-mounted switch will operate the exhaust brake when dash
switch is
ON and throttle is released .
When the exhaust brake is activated, a flapper inside the exhaust brake moves
and restricts the flow of exhaust gases. This causes an increase of exhaust pressure
within the engine. Increased exhaust back pressure quickly slows the engine speed
resulting in powerful engine braking action. When the exhaust brake is activated,
the amount of engine braking power developed is related to engine speed (RPM).
When an exhaust brake application is made, the engine braking affect increases
with higher engine RPM.
PARKING BRAKE &
EMERGENCY BRAKE
SYSTEM
090368b
Properly Chocked Wheel
BRAKES -
AUXILIARY
BRAKES -
EXHAUST BRAKE
SYSTEM
park brake.eps