TM 5-2420-230-24-1
14-5. DRIVE SHAFT AND U-JOINT MAINTENANCE.
This Task Covers:
a. Inspection
b. Removal
c. Disassembly
d. Assembly
e. Installation
f. Follow-On Maintenance
INITIAL SETUP
References
Test Equipment
None
None
Tools and Special Tools
Equipment Conditions
Tool kit, common no. 2, Item 36, Appendix B
TM or Para
Condition Description
Tool kit, general mechanics, Item 38, Appendix B
Center belly plate removed.
Vehicle raised.
Materials/Parts
Cloth, lint-free, Item 10, Appendix C
Drawings Required
Grease, automotive and artillery, Item 30, Appendix C
TM 5-2420-230-24P Figure 105
Nut, self-locking, Item 126, Appendix D (16)
TM 5-2420-230-24P Figure 106
Personnel Required
Estimated Time to Complete
MOS 62B, Construction Equipment Repairer (2)
Refer to MAC in Appendix B
a. Inspection.
(1)
Inspect front and rear drive shaft U-joints for looseness and/or stiffness within bearing cap rollers.
(2)
If necessary, remove drive shaft to facilitate checking U-joints.
(3)
If any looseness and/or stiffness is present, replace U-joints. Inspect drive shaft slip splines for signs of wear.
Repair or replace as necessary.
(4)
Lubricate U-joints. Ensure four bearing seals of each U-joint are purged of old abrasive contaminants.
(5)
Each bearing cap seal is designed to pop when greased. If seal fails to purge, move drive shaft from side to side
while applying grease gun pressure. This will allow greater clearance on thrust end of bearing that is not purging.
The bearing cap seals must purge to ensure correct lubrication of all four U-joint bearings. If seal fails
to purge, release seal tension on bearing cap. Failure to comply may result in damage to equipment.
(6)
On relevant bearing cap, unfasten and remove two bearing cap retaining bolts.
(7)
Loosely install two new serrated bolts which incorporate lock patch.
(8)
Grease U-joints. Ensure lubricant purges from bearing cap seal. With clean cloth, wipe off excessive grease.
(9)
Completely install bolts. Ensure bearing plates are flush with yoke faces. Torque bolts to
38-48 lbf/ft. (52-65 Nm).
Change 1