Lug Nut Torquing - Airstream FLYING CLOUD 2024 Owner's Manual

Maintenance
Max Load Single vs. Max Load Dual
Max Load Single refers to the tire rating for applications
with only one wheel on each end of a single axle. Max
Load Dual refers to the tire rating for dually wheels,
where there are two wheels on each end of an axle for
a total of 4 wheels on a single axle.
Don't confuse the terms Single and Dual with Tandem.
A tandem axle refers to trailers with two axles, one
behind the other.
For Airstream Travel Trailers, refer to the Max Load
Single rating�
WARNING
Do not mismatch wheels and tires.
Axle systems are installed with hubs and drums
that are compatible with many wheels used in the
recreational vehicle industry that have matching
bolt patterns. If the original manufacturer-installed
equipment is in need of replacement, the wheel
manufacturer should be contacted for proof of
compatibility prior to replacement and use.
Customers replacing original equipment that has
not been tested for compatibility must ensure the
replacements are compatible to the hub and drum
assembly installed. Such elements of compatibility
include, but are not limited to:
• Diameter of the hub-mounting surface.
• Stud length and diameter.
• Location and number of studs.
• Center hole diameter for the wheel.
• Wheel-mounting offset from the rim center.
• Rated capacity of the wheel.
• Wheel fastener torque.
• Wheel nut size and shape.
• Impact of any added wheel accessories (such as
decorative center caps) that could affect proper
seating of the wheel to the hub surface.
Refer to the following table for wheel specifications.
Wheel Specifications
Size/Center Size Lug Pattern
In Inches
15 x 6 / 5.5
All wheels have zero offset.
8-8
Model
6 All Models

Lug Nut Torquing

Trailer wheels must carry much higher loads per wheel
than passenger car or truck wheels. Each wheel may
carry 1000 pounds and higher. Furthermore, wheels on
tandem axle trailers do not steer, and are subjected to
very high side load stress whenever the trailer makes
a tight turn. When going around corners, especially on
slow, tight turns, the wheels are subject to very strong
side loads. Although the materials and manufacturing
methods are maximized for this kind of service, these
extra loads can cause stress, which can result in
flexing and loosening of wheel nuts.
Before each trip and any time a wheel is replaced, be
sure to tighten the wheel nuts, following the lug-pattern
sequence shown below. If the wheel was replaced,
check the torque every 5, 25, and 50 miles.
3
5
If you notice wheel wobbling, or hear a rattling sound
coming from a wheel, especially at low speeds, a
wheel lug nut may have come loose. This problem is
usually caused by improper tightening, or by faulty or
damaged lug bolt threads.
If suspicious of a loose lug nut, safely stop the vehicle
as soon as possible. Put up warning devices and check
the tightness of all the lug nuts. Tighten all lug nuts
to the specified torque, using a torque wrench. If stud
threads are damaged or faulty, get professional service
help�
WARNING
Use a torque wrench to tighten lug nuts.
Tightening by hand or with an impact wrench is
not recommended. For lug nut torque values,
Specifications on page 4-4.
1
6
4
2
see
2024 Flying Cloud