2-30 PERIODIC MAINTENANCE
Periodic Maintenance Procedures
Wheels/Tires
Tire Inspection
As the tire tread wears down, the tire becomes more sus-
ceptible to puncture and failure. An accepted estimate is
that 90 % of all tire failures occur during the last 10 % of
tread life (90 % worn). So it is false economy and unsafe to
use the tires until they are bald.
•
Remove any imbedded stones or other foreign particles
from the tread.
•
Visually inspect t he tire for cracks and cuts, replacing the
tire in case of damage. Swelling or high spots indicate
internal damage, requiring tire replacement.
•
Measure the tread depth at the center of the tread with a
depth gauge [A]. Since the tire may wear unevenly, take
measurement at several places.
If any measurement is less than the service limit, replace
the tire.
Tread Depth
Front:
Standard: 3.4 mm (0.13 in.)
Service Limit: 1 mm (0.04 in.)
1.6 mm (0.06 in.) (FG, AR, CH)
Rear:
Standard: 5.8 mm (0.23 in.)
Service Limit: 2 mm (0.08 in.)
(Upto130km/h(80mph))
3 mm (0.12 in.)
(Over 130 km/h (80 mph))
WARNING
To ensure safe handling and stability, use only the
recommended standard tires for replacement, in-
flated to the standard pressure.
NOTE
○
Most countries may have their own regulations a mini-
mum tire tread depth: be sure to follow them.
○
Check and balance the wheel when a tire is replaced
with a new one.
