Air Brakes - Fleetwood 1999 Discovery Parts And Service Manual

The Allison MD-3060 (World Transmission) provides for
optimum retarding downshift operation when the Extarder
compression brake is selected. When the Extarder's dash
switch is turned ON and your foot is removed from the throt-
tle pedal, the transmission will immediately preselect a lower
gear. The gear preselected is usually second gear, however,
your vehicle may have been programmed for either third or
fourth. The transmission then starts to downshift through the
gears to reach the preselect gear. Downshifting occurs at a
higher speed than is usual when the Extarder is not turned
on. This allows the Extarder compression brake to provide
the maximum retarding power.
Operation on Wet or Icy Roads
It is recommended that on wet and slippery or icy roads that
the Extarder not be left in the automatic mode. The ON/OFF
switch should be in the OFF position.
Operation of the Extarder compression brake is recommend-
ed only when you have good traction with the road surface.
Operation on wet roads should be undertaken with extreme
care and at the driver's discretion.
Your motor home is equipped with air brakes. Air brakes are
more sensitive than hydraulic brakes. Practice stopping in a
safe, unobstructed area until you get the feel of the brake
pedal.
The green needle on the air pressure gauge indicates front
brake system air pressure. The red needle indicates rear
brake system air pressure. Please note that the vehicle will
not move until air pressure is sufficient to release the brake
safety springs. A dash indicator will light and a buzzer will
sound until the proper operating pressure is reached.
DiSCOVERY
"'I
NOTE
If your transmission does
not operate as described,
then it may need to be
programmed. Contact
your local dealer for
details.
AIR BRAKES
OJ,27