Air System - Charging (External); Brake Systems - Air Brakes - Holiday Navigator 2003 Owner's Manual

The air system on the motorhome can be charged from an external air
supply source. Located in the generator compartment is a type C automotive
male fitting. Caution should be used when charging the air system from this
fitting. The air supplied from an external source may contain moisture.
Compressed air introduced into the air system on the motorhome from this
fitting is not filtered by the air dryer. The auxiliary air charge fitting will
charge the front and rear air tanks. A shut-off valve is installed to prevent air
from escaping.
CAUTION: The external air supply source should be regulated
to charge the air system on the motorhome no higher than
120 psi. Damage to the air system or pneumatically operated
items may occur
The motorhome is equipped with air brakes using the same efficient system
as over the road trucks. Proper maintenance and lubrication is the key to keeping
the brake system in proper working order. The brake system on the motorhome
is designed to accommodate the weight of the vehicle and towing loads. This
system differs from a conventional automotive hydraulic braking system and
should be treated differently.
When operating a vehicle equipped with air brakes consideration needs to
be given to stopping distances and air system pressures. The heavier the vehicle,
the greater the kinetic energy. The motorhome requires longer stopping
distances. Each brake application uses air from the air system. Give attention
to the air gauge as well as the surroundings. Engine speed is directly proportional
to how fast the air system is replenished. Prepare for downhill grades. Grades
are generally posted in percentages. It may be necessary to select a lower gear.
Make use of the engine or exhaust brake. When making brake applications use
individual short applications down long hills rather than "riding" the brakes.
This will extend the life of the brake lining. Avoid overheating the brakes. Hot
brakes have less stopping power. When maneuvering the motorhome around in
small areas, or backing into spaces, several individual brake applications might
be made. Watch the air gauge. Plan ahead when parking to make it easier on
yourself. When preparing to back into a space swing the motorhome so it is
aligned with the parking slot before backing up.
The air braking system on the motorhome is equipped with several safety
features unlike that of automotive hydraulic braking systems. One safety feature
is a low air pressure warning system. Should a low air condition arise while
the vehicle is under operation a warning buzzer will sound and a dash warning
light will illuminate alerting the operator of the situation. This warning occurs
at approximately 60 to 65 psi (pounds per square inch).
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
N A V I G A T O R 2 0 0 3
Chassis Information
Air System
- Charging (External)
020145
BRAKE SYSTEMS
- AIR BRAKES
1 0 • 3 8 9