Specifications

TM 9-2330-384-14&P
Section VI. AXLE ASSEMBLY MAINTENANCE
Paragraph
Page
Number
Title
Number
4-31
Axle Alinement ..................................................
4-92
4-32
Bent Axle Check . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
4-95
4-31. AXLE ALINEMENT.
THIS TASK COVERS
Axle Alinement
Equipment Conditions:
Ref Conditions
4-33 All brake chamber springs caged.
Tools:
Materials/Parts:
l Two 5/16X18X2 in. UNC bolts
Personnel Required: Two
l Tool kit, general mechanic’s
l 50 ft. steel tape
l Plumb line and bob
l Torque wrench
AXLE ALINEMENT
(1)
(2)
(3)
(4)
(5)
(6)
4-92
NOTE
Before checking alinement, ensure that suspension components are not
damaged and that they are tightly secured to axles and frame hangers (see
paragraphs 4-55 through 4-57)
Position semitrailer, coupled to tractor, on hard, level ground, preferably concrete. Have
operator pull forward in a straight line at least twice to properly center front and rear wheel
track.
Uncouple tractor from semitrailer (see paragraph 2-14).
Adjust landing gear so that the underside of upper coupler assembly (1) is 49 in. (124.5 cm)
from ground.
Use needle nose pliers to hold plumb line and bob from hole in center of kingpin (2) to
ground. Mark spot (8) on ground with a sharp tool.
Install a 5/16X18X2 in. UNC bolt (5) into bottom threaded hole in spider (7) at each end of
front axle (3). Ensure that both bolts are threaded into spider the same amount.
Measure distance “A” from marked spot (8) to bolt (5) and record this measurement. Meas-
ure distance “B” from marked spot to bolt and record this measurement. Measurements
must be within 3/16 in. (4.8 mm) of each other.