AXLES/DRIVE SHAFTS/WHEELS AND TIRES CD3340B/YB4411
8-38
Published 04/07/2015 Control # 569-00
Disassembly
1. Place a flange yoke (1, Figure 8-140) in a vice. Using
pliers, remove the two snap rings from the bearing caps
in the flange yoke.
2. Apply force on the drive shaft in the direction of the
bearings to push the bearings out of the flange yoke.
When the bearings are removed, tilt the journal cross to
permit removal of the universal joint.
3. Disassemble journal cross (2, Figure 8-140) from the
drive shaft using the procedure in step 2. After the snap
rings are removed, use a hammer and soft drift, with a
flat face slightly smaller than the diameter of the bearing,
to remove the bearings.
4. Repeat steps 1 through 3 for the other end.
5. To disassemble the slip tube (3) from the slip yoke (4),
unscrew the dust cap and pull the two yokes apart.
Inspection
Clean all parts in a suitable solvent. Remove all rough areas
from any finished surfaces. Make sure the bearing surfaces
on the journal crosses are smooth. Do not disassemble the
needle bearings. Clean them with brush and apply a small
amount of SAE 140 oil into each bearing cap and rotate the
bearing on the trunnion to check for wear. If there is any
indication of wear or damage to the needle bearings, bearing
cap or journal crosses, replace the journal and bearings as
an assembly.
Check for damage to the splines of the sleeve yoke. Make
sure the splines are clean and smooth. Look for damage or
distortion of the drive shaft tube. Damage can cause failure
of the drive shaft under high torque loads. The drive shaft
must be straight to inhibit vibration during operation. Replace
the drive shaft if there is damage.
Assembly
1. If new journal and bearings are not being installed,
inspect the seals in the bearing caps. If they are
damaged in any way, replace the complete journal and
bearing assembly.
2. Install the journal cross into the yoke of slip tube (3,
Figure 8-140).
3. Apply a small amount of SAE 140 oil to the trunnions on
the journal cross. Press the bearing cap assemblies into
place. Use care not to cause damage to the bearings or
caps. Install the snap rings. Make sure the snap rings
are engaged fully into the grooves.
4. Repeat steps 1 through 3 on the opposite end of the
drive shaft slip yoke end (4).
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