4-11 TIRE MAINTENANCE
4-11.1
Tire Inflation
. Tire inflation will cause
tire to ground contact characteristics as
shown in
Figure 4-15
. Tire inflation should
be checked daily while the tire is cold, and
during road stops. Checking the tire pres-
sures while tires are hot will give a faulty in-
creased 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 ex-
ceed cold inflation 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/adjusting has been com-
pleted. Remove any foreign objects from be-
tween duals.
4-11.2
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 4-16).
4-23
Figure 4-15 Tire Inflation Examples
Figure 4-16 Measuring Tape Method
Figure 4-17 Straight Edge Method
Summary of Contents for 345B
Page 3: ...MODEL 345B TRAILER OPERATOR S MANUAL PURCHASED FROM DATE ADDRESS PHONE NO SERIAL NO ...
Page 8: ......
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Page 22: ...3 10 Figure 3 4 Steps for Loading and Unloading ...
Page 26: ...3 14 Figure 3 7 Rear Impact Guard and Antilock Brake System ...
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Page 35: ...4 5 Figure 4 2 345B Wiring Diagram ...
Page 36: ...4 6 Figure 4 3 Remote Wiring Diagram ...
Page 41: ...4 11 Figure 4 5 Examples of Camber Figure 4 6 Checking Axle for Bend ...
Page 46: ...4 16 Figure 4 10 Axle and Brake Assembly ...
Page 50: ...4 20 Figure 4 13 Outboard Mount Hub and Drum Figure 4 14 Inboard Mount Hub and Drum ...
Page 54: ...4 24 Figure 4 18 Mounting Tires and Wheels Figure 4 19 Stud Tightening Sequence ...
Page 65: ...5 9 NOTES ...