Meritor MM-96147 Maintenance Manual page 74

13 Troubleshooting
Table J: Slip Yoke Spline Wear
Condition
Seizure
Galling
Outside diameter wear at
extremities
Spline shaft or tube broken in
torsion
Table K: Shaft and Tube
Condition
Shaft support bearing wear
Shaft support rubber insulator
wear
4001863a
Tube circle weld fracture
Shaft broken in
bending
MM-96147 / Revised 03-21
Page 74
Cause
Incorrect lubrication
Worn or damaged part
Contamination
Worn or damaged parts
Contamination
Incorrect lubrication
Excessive loose outside diameter fi t
Tube size inadequate
Excessive torque load for universal
joints and driveline size
Cause
Driveline too long for operating
speeds
Incorrect lubrication of bearings
Bending fatigue due to secondary
couple loads
Excessive torque load for universal
joint and driveline size
Shaft support bearing misaligned;
interferes with defl ector
Balance weight located in apex of
weld yoke lug area
Balance weight too close to circle
weld
Incorrect circle weld
Driveline too long for operating
speeds
Bending fatigue due to secondary
couple loads
Copyright Meritor, Inc., 2021
Correction
Lubricate the slip yoke spline according to specifi cations.
Check the seal.
Replace the spline components.
Lubricate the slip yoke spline according to specifi cations.
Check the seal.
Replace the spline components.
Lubricate the slip yoke spline according to specifi cations.
Check the seal.
Lubricate the slip yoke spline according to specifi cations.
Check the seal.
Replace the spline components.
Use a larger diameter tube.
Replace with a higher capacity universal joint and driveline.
Correction
Install a two-piece driveline with a shaft support bearing.
Replace the center bearing.
Reduce the universal joint continuous running angle.
Replace with a higher capacity universal joint and driveline.
Realign the mounting bracket-to-frame crossmember to eliminate
interference with the defl ector.
Replace the tubing and rebalance.
Replace the tubing and rebalance.
Replace the tubing and rebalance.
Install a two-piece driveline with a shaft support bearing.
Reduce the universal joint continuous running angle.
(16579)
Printed in USA