Remedy
Probable Cause
Trouble
Lift the trailer to remove weight
Excessive wear in
Front wheels
c.
1.
from wheels. Grasp top and bottom
kingpin, knuckle
do not track
of tire and apply push-pull motion
assembly, tie
with rear
(in on top, out on bottom, and vice
rods, or wheel
wheels.
versa). If the wheel assembly
bearings.
(Cont)
movement, measured at the tire
outer edge, is 1/8-inch, or more,
replace kingpin, knuckle assembly,
and/or bearings as necessary.
Secure steering mechanism. Grasp
front and rear of tire and apply
push-pull motion (in on front, out on
rear, and vice versa). If the wheel
assembly movement, measured at
the tire outer edge, is 1/8-inch, or
more, replace tie rods, tie rod
ends, and/or bearings as necessary.
Wheel rim bent or
Replace wheel.
d.
cracked.
Deflate tire before separating
wheel rims. Inflated tire
pressure will separate the rim
halves with extreme force.
Wheels out of
Align wheels, using standard align-
2.
Tire wear
a.
uneven.
alignment.
ment procedures.
Improper inflation.
Inflate the tires to 40 to 45 psig.
b.
Cross-switch tires. Replace badly
worn tires.
Brakes do not
3.
Improper brake
Adjust brakes. Refer to paragraph
a.
hold against
adjustment.
load.
dures.
Figure 6-1.
Table of Troublesbooting Procedures (Sheet 2 of 5)
6-2
