Landoll L20 Series, Руководство оператора

Страница: 34 / 48

4-15 TIRES
4-15.1 Tire Inflation . Tire inflation will cause
tire to ground contact characteristics as
shown in Figure 4-9. Tire inflation should be
checked daily while the tire is cold, and dur-
ing road stops. Checking the tire pressures
while tires are hot will give a faulty increased
pressure reading. Adjusting tire air pressure
to the specified amount while tires are hot
will produce improper tire to road contact and
thus abnormal wear. Do not exceed cold in-
flation pressure listed on the trailer VIN plate
located on the front of the trailer. Exceeding
cold inflation pressure will result in damaged
tire bodies, rims, and wheels. Replace all
valve stem caps when pressure checking/ad-
justing has been completed. remove any for-
eign objects from between duals.
4-15.2 Tire Matching . Both tires on the same
spindle must be the same size in order to
properly distribute the load and braking forces
between them. The tire must be mounted on a
rim and properly inflated before measuring. If
there is an allowable difference in size the
smaller tire should be mounted to the inside
position of the duals.
a. Tape Measuring Method.: Measure around
each tire on the tread surface. A maximum
difference of 3/4" is allowed between the two
mating tires of a dual (See Figure 4-10).
b. Straight Edge or String Method: (This
method can not be used if tire and wheel as-
semblies are not mounted on the axle.) Jack
trailer up until the wheels are off of the
ground. Hold a straight edge against the tires
of both ends of an axle. A gap at one tire indi-
cates a smaller tire. A maximum of 1/8" gap is
allowed (See Figure 4-11) .
4-14
Figure 4-9 Tire Inflation Examples
Figure 4-10 Tape Measuring Method
Figure 4-11 Straight Edge Method