Tag Axle Unloaded - PREVOST Motorcoach XL Series Operator's Manual

STARTING AND STOPPING PROCEDURES
can be flipped to either one of two positions,
"Wheels up" or "Wheels down". Axle will
automatically be raised or lowered by air pressure
according to valve position (see page 2-23).
Tag axle service brakes operate only when axle is
down. Never lower tag axle while vehicle is
moving. When tag axle is up, the corresponding
indicator light will illuminate, and a beep will sound
to remind you that axle is up. Tag axle can be
raised in tight maneuvering areas as in parking lots
or to help in turning a short corner, thus shortening
the wheelbase and allowing tighter turning. Raising
tag axle transfers extra weight and additional
traction to the drive wheels on a slippery surface.
CAUTION
: Always raise tag axle before lifting
vehicle to prevent damage to suspension
components.
After either of the above uses, vehicle must be
stopped, then tag axle must be lowered before
resuming normal driving.

TAG AXLE UNLOADED

This standard system allows unloading of the tag
axle air springs, without raising the axle. This
system is controlled by the same valve that applies
to the retractable tag axle, and is used in the same
situations described in "RETRACTABLE TAG
AXLE" section. Follow the same
recommendations that apply to the retractable axle.
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