THOR CLASS A - Page 43

TIRES AND WHEELS
THOR MOTOR COACH | MADE TO FIT
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As part of your pre-travel check-list, always check
lug nut torque with a properly calibrated torque
wrench. Torque lug nuts to the vehicle manufacturer’s
specications.
Always properly torque lug nuts as part of a tire
changing procedure.
CAUTIONCAUTION
The front suspension and steering system of this
motorhome was factory aligned prior to it being
dispatched to the dealership. The alignment is however,
greatly affected by the way the unit is loaded prior to
travel. This loading includes how much cargo, water,
and LP are carried as well as the distribution of said
cargo. Thor Motor Coach advises to have the alignment
checked in the fully loaded condition (the way you
would normally load the unit to travel). Not having the
alignment checked and reset can result in abnormal
tire wear.
NOTICENOTICE
Lug Nut Torque
Ensuring wheel mounting nuts (lug nuts) on the wheels are
tight and properly torqued is a vitally important respon-
sibility for safe motorhome travel. Inadequate and/or
inappropriate wheel nut torque (tightness) is a major rea-
son that lug nuts loosen or fail in service. Loose lug nuts can
rapidly lead to a wheel separation with potentially serious
safety consequences.
Refer to the chassis manufacturer's information for proper
lug-nut torque and tightening sequence.
Wheel Alignment
Failure to replace damaged tires with tires of the
same size, type, traction, and load rating than the
originally equipped tires can signicantly affect the
weight carrying capacity, handling, and safety of your
motorhome.
WARNINGWARNING
Ensure the spare tire is the same size and specications
listed on your motorhomes Federal Weight Label.
WARNINGWARNING
It is very important to maintain proper wheel alignment
for your motorhome. Improper wheel alignment not only
contributes to premature tire wear, but also severely aects
vehicle handling. Keeping your motorhome’s front wheels
in alignment is part of a normal maintenance routine.
Please follow the recommendations listed in the notice
above and on the corresponding label axed to your
motorhome.
Toe-in and toe-out (only) are inspected by TMC prior to
shipment to your selling dealer.
Tire Replacement
Tires degrade over time depending on many factors such
as weather, storage conditions, and conditions of use (load,
speed, ination pressure, etc.) experienced throughout the
life of the tires. In general, tires should be replaced aer six
years regardless of tread wear. Heat caused by hot climates
or frequent high-loading conditions can accelerate the
aging process and may make it necessary to replace tires
more frequently. Due to aging, you should replace the
spare tire when you replace the road tires, even if it has
never been used.
All tires should be replaced with the same size, type, load
rating, traction, and temperature rating (or better) than the
original equipped tires. Tire specications are listed on the
motorhome's Federal Weight Label (Section 6) or found
within the chassis manufacturer's owner's manual.
e load index per tire congured as dual wheel is less than
a single tire to provide a margin of safety for the load-car-
rying capacity of the tire in the event that one of the dual
tires is punctured or otherwise fails.
NOTE:
• The tires supplied on your Class C and some
Class A motorhomes carry a “Light Truck” rating.
• Installing replacement tires with a higher limit than
that of the originals does not increase the payload
capacity of the motorhome. Refer to the chassis
manufacturer’s owner’s manual for additional in-
formation.