Fleetwood 1998 American Tradition Owner's Manual page 68

When driving down long grades, shift the transmission to a
lower gear at the top of the grade. Rule of thumb: Use the
same lowest gear going down as it took to go up the hill. Crest
the hill in the lower gear. Do not exceed the maximum down-
hill speed with PAC brake ON of 2700 RPM.
Please see the Chassis Owner's Manual for more information
about brake system operation and downhill driving
techniques.
Your motor home is equipped with air suspension. When the
engine is started the suspension will begin to fill with air,
lifting the motor home body 4-6 inches. A buzzer will sound
until the air tanks are sufficiently full for proper operation.
Your motor home has four suspension air bags - two for each
axle. The pressure in these bags is controlled by three air
valves. These valves are preset and determine the distance
between the chassis and axle, or "ride height." Each air bag
may contain a different air pressure. This pressure is deter-
mined automatically by the system to maintain a level chassis,
and is continually adjusted as long as the chassis engine is
running.
The air suspension system is not the same as the Semi-Auto-
matic Leveling System. See Semi-Automatic Leveling
System.
AiR
SUSPENSioN
SYSTEM
OJ, JO AMERicAN TRAdirioN - COPYRiqHr 1997, FlEETWood ENTERPRisES, INC. All RiqHrs RESERVEd.