Case MDX71 - U-Joints

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SECTION 31 -- IMPLEMENT POWER TAKE-OFF -- CHAPTER 1

31-9

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.

600-3-21

2. Position the U-joint assembly in an open vise as

shown, with each ear of one yoke, 1, supported

byavisejaw.Withasoft-facedhammerormallet,

strike the top ear of the unsupported yoke, 2; this

will drive the top bearing cup, 3, outwards

approximately 1/4″ (8 mm).

600-3-22

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 direct-

ly 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 cer-

tainthevisejawsarecoveredwithbrassprotec-

tors. By striking the yoke ear, the bearings can be

removed in the same manner as described in

steps 2 & 3.

600-3-23

Case MDX71 - U-Joints - Disassembly