Chassis Information --- Section 10
The Executive 2005
455
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 lift chambers to raise the axle.
• Air pressure in the tag axle air bags is released. The tag axle
remains up in reverse, neutral, first gear or until the switch is
turned off.
Adjusting the tag axle load:
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 pres-
sure 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 distri-
bution on all axles. To determine the correct setting of the pressure
regulator the motorhome will need weighed after it has been loaded
for travel.
NOTE:
The tag axle pressure regulator valve is located in the
engine compartment on the roadside.
Tag Axle Lubrication:
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.
INSPECTION:
Inspect the oil level before every trip or every 5,000 miles.
The motorhome should remain motionless for at least
30 minutes in order to stabilize the oil level
before inspecting.
To inspect the oil level:
• The motorhome must remain stationary for 30 minutes.
• Remove the chrome hubcap.
• Locate the full and add mark on the outside of the clear
plastic cover.
• If the lubricant is low, add recommended fluid to proper
level.
Tagairpot2.tif
090256
Tag Axle Lift Chamber
(Type 30)
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