Group 22, Wheels and Tires
SM 765, Nov ’06 Pneumatic Wheels and Tires • 22-2-1
CAUTION
!
SAFE PARKING. Before working on truck :
1. Park truck on a hard, level, and solid
surface, such as a concrete floor with no
gaps or breaks.
2. Put upright in vertical position and fully
lower the forks or attachment.
3.
Put all controls in neutral. Turn key switch
OFF and remove key.
4. Apply the parking brake and block the
wheels.
Pneumatic Tire Maintenance
Precaution
The following instructions supplement the OSHA require-
ments. In the event of any conflict or inconsistency
between these instructions and the OSHA requirements,
the OSHA requirements shall be controlling.
WARNING
!
Before you do tire or rim maintenance, read
the OSHA rules regarding owner responsib-
lilty. Read and understand all maintenance
and repair procedures on tires and rims. Do
not work on tires or rims unless you have
been trained in the correct procedures. Seri-
ous injury or death can result if the safety
messages are ignored.
1. Do not let anyone mount or demount tires without
proper training.
2. Never sit on or stand in front of a tire and rim assem-
bly that is being filled with air. Use a clip-on chuck
and make sure the hose is long enough to permit the
person filling the tire with air to stand to the side of
the tire, not in front or in back of the tire assembly.
3. Never operate a vehicle on only one tire of a dual
assembly. The carrying capacity of the single tire and
rim is dangerously exceeded, and operating a vehicle
in this manner can result in damage to the rim and
truck tip-over and driver injury.
4. Do not fill a tire with air that has been run flat with-
out first inspecting the tire, rim, and wheel assembly.
Double check the lock ring for damage. Make sure
that it is secure in the gutter before filling the tire
with air.
5. Always remove all air from a single tire and from
both tires of a dual assembly prior to removing any
rim components, or any wheel components, such as
nuts and rim clamps. Always remove the valve core
to remove air from tire. Be sure all air is removed.
6. Check rim components periodically for fatigue
cracks. Replace all cracked, badly worn, damaged,
and severely rusted components.
7. Do not, under any circumstances, attempt to rework,
weld, heat, or braze any rim components that are
cracked, broken, or damaged. Replace with new parts
or parts that are not damaged, which are of the same
size, type, and make.
8. Never attempt to weld on an inflated tire/rim assem-
bly.
9. Clean rims and repaint to stop detrimental effects of
corrosion. Be very careful to clean all dirt and rust
from the lock ring gutter. This is important to secure
the lock ring in its proper position.
A Filter on the air filling equipment to remove the
moisture from the air line prevents a lot of corrosion.
The filter should be checked periodically to make
sure it is working properly.
10. Make sure correct parts are being assembled. Ask
your distributor or the manufacturer if you have any
doubts.
11. Do not be careless or take chances. If you are not
sure about the proper mating of rim and wheel parts,
consult a wheel and rim expert. This may be the tire
man who is servicing your fleet, the rim and wheel
distributor in your area, or the CLARK dealer.
12. Mixing parts of one manufacturer’s rims with those
of another is potentially dangerous. Always ask man-
ufacturer for approval.
Section 2
Pneumatic Wheels and Tires
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