SECTION 58 - DRIVELINES - CHAPTER 1
58-9
U-JOINTS
Disassembly
1. Remove the PTO shaft from the unit, and remove
the shielding, as previously described. Remove
the internal snap rings, 1, from the yoke ears, and
remove the grease zerk, 2, from the bearing cup.
2. Position the U-joint assembly in an open vise as
shown, with each ear of one yoke, 1, supported by
a vise j aw. With a soft-faced hammer or mallet,
strike the top ear of the unsupported yoke, 2; this
will drive the top bearing cup, 3, outwards
approximately 8 mm (1/4 in).
3. Grip the loosened bearing, 1, in the vise, and drive
the yoke off the bearing by striking the yoke ear
with the soft-faced hammer or mallet.
4. Repeat the process to remove the bearing
directly opposite the one just removed, after
which the yoke itself may be removed.
5. To remove the two remaining bearings and the
cross, support the cross in the vise, making
certain the vise jaws are covered with brass
protectors. By striking the yoke ear, the bearings
can be removed in the same manner as
described in steps 2 & 3.
600-3-21
1
2
21
600-3-22
1
2
3
22
600-3-23
1
23
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