SkyTrak 6036 Service Manual - Manual (Page 162)

Axles, Drive Shafts, Wheels and Tires
5.26 Model 6036 Legacy
e. Tire Speed and Road Surface Limitations
The tires on this vehicle are designed for low-speed
operations not to exceed 25 mph (40 km/hr). If the vehicle
is towed at high speeds, high temperatures may develop
under the tread bars, causing a shifting of the tread bars
and a weakening of the tire material and cord fabric.
There may be no visible evidence of this type of damage,
but later, a failure can occur. If tires are to operate for any
length of time on a paved road, highway or other hard
surface, increase pressure in the tire to the maximum
amount recommended by the tire manufacturer to help
reduce the chances of damage, or arrange to have the
vehicle transported on a flat-bed truck.
f. Care and Storage of Tires
Store unmounted tires vertically, standing on their tread.
If stored for an extended period of time, rotate the tires
periodically to help reduce stress concentrations in the
ground contact area of the tread. Tires should not be
stored flat or stacked vertically (“stove piped”) as they will
become flattened and distorted, making mounting
difficult, particularly for tubeless tires.
Store mounted tires as noted above, but reduce the
inflation pressure to 10 psi (68,9 kPa).
Store tires indoors in a cool, dark, dry area away from
drafts. Heat and light can cause oxidation on the tire
surface, which leads to decomposition (“crazing”) and
weather checking. NEVER store tires on oily surfaces or
in contact with oil, grease, petroleum-based substances,
anti-freeze or solvents. Tires should not be stored near
volatile substances. Tires absorb volatile substances,
which damage and weaken the tire.
Tires should not be stored outside or in direct sunlight. If
there is no other alternative, tires stored outside must be
covered or otherwise protected from sunlight, wind and
rain. Use an unbroken, opaque covering to help protect
tires stored outdoors.
Store tires away from electric motors, generators, arc
welders, etc., as these generate ozone, which attacks
rubber and causes crazing and weather checking.
Exposure to weather will also cause cracking or crazing
of the rubber as well as deterioration of the tire carcass,
particularly where rainwater is permitted to accumulate in
the tire.
When extended vehicle storage is anticipated, the vehicle
should be placed on suitable supports with the tires
raised out of ground contact. Inflation pressure in the tires
should then be reduced to 10 psi (68,9 kPa). Keep the
tires out of contact with sunlight, wind and rain as noted
above.
If it is not possible to raise the vehicle, increase tire
inflation pressure by 25 percent. Move the vehicle
periodically to change the location of stress
concentrations in the tire ground contact area.