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Checking the Tires and Wheels
Service Interval: Before each use or daily—Inspect the tires
and wheels.
After each use—Torque the lug nuts to 108 to 122
N∙m (80 to 90 ft-lb) after towing.
WARNING
Failure to maintain correct tire pressure may result
in tire failure and loss of control, resulting in
property damage and serious injury or death.
• Check the tire pressure frequently to ensure
proper inflation. If the tires are not inflated to
the correct pressure, they will wear prematurely.
• Inspect the tire condition before towing and
after any operating accident.
The DOT tire information is located on the side
of each tire. This information gives load and speed
ratings. Replacement tires should have the same
or better ratings. For more information go to
http://www.nhtsa.gov/Vehicle+Safety/Tires.
Note: The various machines in this manual have different
weights; refer to
Specifications (page 13)
tires on your machine meet or exceed the weight requirements
of your machine.
1. Visually inspect the tires for damage and wear
17
and
Figure
18)
Figure 17
1. Example of tire wear caused by underinflation
Figure 18
1. Example of tire wear caused by overinflation
to ensure that the
(Figure
G020836
15
2. Ensure that the tires are inflated to the correct air
pressure. The following Tire-Air Pressure table shows
the appropriate air pressure for the tires as installed at
the factory.
Important: Always check the information
on the actual tires for the correct air pressure
requirement.
Important: The most common cause of tire
trouble is underinflation. Maintain full air
pressure.
Tire Air Pressure
Model
68017C
68021C and 68024C
3. Ensure that the lug nuts are torqued to 108 to 122
N∙m (80 to 90 ft-lb). Check the torque of the lug nuts
initially and after towing.
Note: Torque the lug nuts in the sequence shown in
Figure
19.
1
3
4
2
Figure 19
Tire pressure
Max 414 kPa (60 psi)
Max 241 kPa (35 psi)
G021
107
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