Tag Axle - Holiday Navigator 2003 Owner's Manual

The switch for the tag axle is located on the left hand shift panel. There are
two lights on the switch: One will light when the headlights are turned on. The
other will light when the tag axle switch is on. Raise the tag axle when
performing severe or tight maneuvering under 5 mph to prevent scuffing the
tag axle tires. A beeping alarm sounds when the switch is on.
The tag axle raises in the following modes:
• When the switch is on and the transmission is in neutral, reverse
or first gear.
• With the tag axle in the up position there is not a specific height
requirement other than the tire should be off the ground. If extra
clearance is desired, moving the lift chain up one link on each side
can increase ground clearance with the tag axle in the raised
position.
A description of what occurs in a motorhome equipped with air leveling
when the tag axle switch is on:
• The tag axle switch supplies 12 Volt DC to the 14 gauge yellow
with green stripe wire to the air valve located at the roadside rear.
• The rear air valve applies air pressure to the orange air line at both
tag axle brake chambers to lift the axle.
• Air pressures in the tag axle air bags is released. The tag axle
remains up until the switch is turned off.
The amount of weight carried by the tag axle may be adjusted by changing
the amount of downward force applied to the tag axle. Changing the amount of
weight carried by the tag axle affects weight distribution between the tag, drive
and steering axles. The amount of down force applied to the tag axle is
controlled by the amount of air pressure in the tag axle air bags. An adjustable
pressure regulator located in the engine compartment sets the amount of air
pressure in the tag axle air bags. Regulator pressure is preset at the factory and
may require adjustment to obtain the proper weight distribution on all axles. To
determine the correct setting of the pressure regulator the motorhome will need
weighed after it has been loaded for travel.
All tag axles use oil to lubricate the wheel bearings. The oil is drained and
refilled without removing the wheel end assembly. Remove the hubcap to
access the bearing cover and drain plug.
Inspect the oil level before every trip or every 5,000 miles.
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N A V I G A T O R 2 0 0 3
Chassis Information

TAG AXLE

1 0 • 4 0 5