Cayman 2006 Electrical Systems - Chassis — Section 9 • 215
1. Air Pressure Gauge:
Two separate needles indicate air system pressure of the front and rear air tanks. The normal air system
operating pressure is 105 to 120 psi. These air pressures are preset at the factory. If the air system
does not maintain normal operating pressure, it is an indication of a malfunction in the air system. Use
caution and stop the motorhome in a safe area. Contact a qualifi ed technician immediately.
NOTE:
It is not safe to drive the motorhome with low air pressure. Damage can occur to the
suspension and/or drive shaft, and operation of the air brake system can also be affected.
2. Turbo Boost Gauge:
The turbo boost gauge indicates the boost pressure produced by the engine turbocharger.
3 Tachometer:
Displays the engine speed in revolutions per minute (RPM). Normal low idle speed can vary from 700
RPM to 875 RPM.
4. Speedometer:
Indicates the speed in MPH and KPH.
5. Odometer/Trip Meter:
Records the mileage driven as well as total mileage on a trip. To operate, push the round black button
under the speedometer. This changes the odometer mileage reading to the trip mileage reading. The
black reset button sets the trip mileage back to zero when held for two to three seconds. Release the
button and momentarily press the button again. This changes the trip mileage reading to the odometer
mileage reading.
NOTE:
Odometer reading is indicated in miles.
6. Fuel Gauge:
The fuel gauge will register the approximate fuel level in the tank when the ignition switch is in the run
position.
NOTE:
Fuel mileage varies with driving style and road conditions. Always average more than one
tank of fuel to obtain a more accurate figure. The diesel generator uses fuel from the main
tank and will affect fuel mileage figures. The diesel generator will not operate below ¼ tank
to ensure there is enough fuel to run the main engine.
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