Table of Contents
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Check Steering Knuckle Rotational Torque ......... 39
Knuckle ........................................................... 39
Shield on the Steering Knuckle ...........................40
Install the Wheel Bearings into the Hub .............. 41
Install the Hub onto the Axle .............................. 42
Adjust the Wheel Bearings ................................ 42
with ABS .......................................................... 43
Install the Drive Flange and Hubcap ................... 43
Assemble the Slack Adjuster ............................. 44
Adjust the Brakes ............................................. 45
MX-120-EVO Series ............................................ 46
Knuckle ........................................................... 47
Check Steering Knuckle Rotational Torque ......... 49
Knuckle ........................................................... 49
Shield to the Steering Knuckle ........................... 50
Install the Wheel Bearings into the Hub .............. 51
Install the Hub onto the Axle .............................. 52
Adjust the Wheel Bearings ................................ 52
with ABS .......................................................... 53
Install the Drive Flange and Hubcap ................... 53
Assemble the Slack Adjuster ............................. 54
Adjust the Brakes ............................................. 56
Section 9: Adjustment ....................................... 57
Inspection ........................................................ 57
Adjustment ...................................................... 57
Check and Adjust Wheel Bearings ..................... 58
Maximum Turn Angle ........................................ 59
MM-0170 / Revised 03-23
Page iv
Turning Radius Angle ........................................ 60
Camber Angle .................................................. 60
Caster Angle .................................................... 61
Measure and Adjust the Toe .............................. 61
Section 10: Troubleshooting ............................... 63
Front Drive Steer Axle Troubleshooting ............... 63
Section 11: Lubrication and Maintenance .......... 65
Lubrication ....................................................... 65
Magnets and Magnetic Drain Plugs ................... 65
Temperature Indicators ..................................... 65
Check and Adjust the Axle Oil Level ................... 65
Drain and Replace the Axle Oil .......................... 66
Equipped with Wheel-End Fill Plugs ................... 66
Knuckle King Pins............................................. 67
Cross Tube End Assembly ................................. 67
Wheel Bearings and Hub Seal ........................... 68
Specifications .................................................. 69
Specifications .................................................. 69
Lubricant Specifications .................................... 70
Maintenance .................................................... 70
End Play .......................................................... 71
Section 12: Specifications .................................. 77
MX-120 and MX-120-HR Series ....................... 77
MX-120-EVO Series ......................................... 79
Section 13: Special Tools .................................... 81
Tool Drawings .................................................. 81
Axle Shaft Seal Driver ....................................... 81
Hub Seal Driver ................................................ 82
Bushing Driver ................................................. 83
Copyright Meritor, Inc., 2023
(16579)
Printed in USA
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