B
WHEELS AND TIRES
Read all of SAFETY and this section before attempting any procedure. Pay particular attention to Notices, Cautions, Warnings and Dangers.
37
Repair and Service Manual
653045
WHEELS AND TIRES
WHEEL AND TIRE SERVICE
Tool List
Quantity
Lug Wrench, 3/4”......................................................... 1
Impact Wrench ............................................................ 1
Impact Socket, 3/4” ..................................................... 1
Torque Wrench, ft. lbs. ................................................ 1
To decrease the risk of tire explo-
sion, add small amounts of air to
the tire at intervals to seat the tire
beads. Over inflation of small
tires can occur in a few seconds.
Do not over inflate the tires. Excess pressure can
cause the tire to separate from the wheel or
explode.
Protect face and eyes when removing a tire valve
core.
Use only sockets made for use with impact
wrenches to decrease the risk of injury caused by a
broken socket.
Do not use tires that have a recommended tire infla-
tion pressure less than the tire pressure recom-
mended in the vehicle owner's guide.
Recommended Tire Pressure
Use caution when you inflate the tires. Because of the low
volume of the small tires, over inflation can occur in sec-
onds. Over inflation can cause the tire to separate from
the wheel or cause a tire explosion.
The general recommended tire inflation pressure is 18-22
psi (124 - 152 kPa). Tire inflation pressure can be
adjusted for the condition of the terrain.
For outdoor applications with primary use on areas with
grass, consider the following:
•
Slightly higher tire inflation pressure is suitable on
hard surfaces.
•
A lower pressure decreases the risk of tires cutting
into turf.
For hard surfaces or pavement, tire inflation pressure
must be in the higher allowed range, but not more than
recommended on the tire sidewall.
All four tires must have the same pressure for best control
qualities. Always install the valve stem cap after you
check or inflate the tires.
Tire Repair
The vehicle is equipped with low-pressure tubeless tires
mounted on one piece rims.
The most cost effective way to repair a flat tire with a
puncture in the tread portion of the tire is to use a com-
mercial tire plug. For large holes and cuts, replace the
tire.
NOTICE: Tire plug tools and plugs are available in
automotive outlets. The tire does not have to be
removed from the wheel to install a tire plug.
If the tire is flat, lift the vehicle and remove the wheel.
Refer to the SAFETY section for the lifting procedure and
safety information. Inflate the tire to maximum recom-
mended pressure. Submerge the tire in water to find the
leak, and mark with chalk. Insert the tire plug in accor-
dance with manufacturers specifications.
If the tire is being removed or mounted, the tire-changing
machine manufacturers recommendations must be fol-
lowed to minimize the possibility of personal injury. Be
sure to place tire on wheel correctly. The arrow on the tire
indicates direction of rotation when moving forward.
To decrease the risk of injury,
make sure the mounting/
demounting machine is anchored
to the floor. Wear OSHA approved
safety equipment when mounting/demounting tires.
Follow all instructions and safety warnings provided by
the mounting/demounting machine manufacturer.
Tire
Pressure
Range
Terrain
Condi-
tions
Recommendation
18 - 22 psi
(124 - 152
kPa)
Hard
surfaces or
pavement
Inflate to higher pressure
within the range; never
exceed maximum pressure
indicated
Soft terrain
or turf
Inflate to lower pressure
within the range to reduce
potential damage to the ter-
rain or turf
Property of American Airlines
