Retractable Tag Axle - PREVOST Le Mirage XL Owner's Manual

STARTING AND STOPPING PROCEDURES
Caution:
Do not tow the vehicle without
external air pressure applied to the emergency
fill valve if the engine does not operate. Without
brake system air pressure, the brakes may
apply automatically if system air drops below 40
psi (275 kPa). If failure prevents releasing the
parking brakes with air pressure, disengage the
parking brakes mechanically.
3. Lift the vehicle from under the front axle, and
adequately secure the underside to the tow
vehicle lifting attachment with chains.
4. Observe safety precautions when towing.
Note:
When the propeller or axle shafts are
reinstalled, ensure the nuts are tightened to the
appropriate torques and the axle shafts are
properly installed (R.H. & L.H.) and/or the
propeller shaft is properly phased. Refer to the
"Maintenance Manual" for torque values.
Towing Without Lifting
Caution:
When towing without lifting vehicle,
use only a tow truck with a solid link tow bar and
related equipment. All other means of towing are
unauthorized. Tow only from the front of the
vehicle.
1. Remove both drive axle shafts to prevent
damage to the transmission. Plug axle tube to
prevent oil loss. For correct procedure, refer to
Rockwell's "Maintenance Manual 5" annexed
at the end of Section 11 "Rear Axle", in your
Maintenance Manual.
Caution:
Transmission
inadequate when towing. With either automatic
or manual transmission, the drive axle shafts
must be removed to avoid serious damage to
the transmission.
2. Operate the engine of the vehicle when towing
to maintain brake system air pressure. If the
engine cannot be operated, connect an
external air pressure line from the tow truck to
the emergency fill valve in the engine
compartment. The emergency fill valve in the
front service compartment does not supply air
pressure to the brake system. The air
pressure must be a minimum of 75 psi (520
kPa), and the line should be attached to the air
line with a clip-on chuck.
lubrication is
4 - 22
Caution:
Do not tow the vehicle without
external air pressure applied to the emergency
fill valve if the engine does not operate. Without
brake system air pressure, the brakes may
apply automatically if system air drops below 40
psi (275 kPa). If failure prevents releasing the
parking brakes with air pressure, disengage the
parking brakes mechanically.
3. Position the tow truck so that the tow bar
contacts the front bumper of the vehicle.
4. Attach the tow truck chains in the tow eyes of
the vehicle under the bumper and take up all
the slack (see
illustration on page 4-20).
5. Attach safety chains as applicable.
6. Observe safety precautions when towing.
Note:
When the propeller or axle shafts are
reinstalled, ensure the nuts are tightened to the
appropriate torques and the axle shafts are
properly installed (R.H. & L.H.) and/or the
propeller shaft is properly phased. Refer to the
"Maintenance Manual" for torque values.

Retractable Tag Axle

Operation of the tag axle is controlled by a valve
located on the L.H. Lateral Console. The valve
can be flipped to either one of two positions,
"Wheels up" or "Wheels down".
automatically be raised or lowered by air
pressure according to valve position (see page
2-4).
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.
"Body Jacking Points"
Axle will