Spicer Tandem Drive Axles Service Manual D__R440, 460, 480, D_R461, 462, 463, 521, 581, 601, 651, 652, 653 - Manual (Page 4)

iii
Table of Contents
Introduction .........................................................1
Failure Analysis ...................................................7
Inspection ...........................................................9
Differential Carrier Assembly - Parts .................11
Differential Lockout ...........................................17
Power Divider
Power Divider - Parts Exploded View........................ 23
Remove Power Divider ............................................. 24
Remove Power Divider from Differential Carrier
(with carrier removed from axle housing) ................ 25
Disassemble, Assemble and Overhaul
the Power Divider ..................................................... 27
Install Power Divider on Differential Carrier
(with carrier assembled to axle housing) .................. 38
Install Power Divider on Differential Carrier
(with carrier removed from axle housing) ................. 40
Dissasemble Differential Carrier
(with power divider removed) ................................... 54
Drive Pinion
Drive Pinion - Parts Exploded View ............................ 57
Disassemble and Overhaul Drive Pinion .................... 58
Install Drive Pinion Assembly.................................... 65
Wheel Differential Assembly
Wheel Differential Assembly
- Parts Exploded View ............................................... 68
Housing and Rear Cover Assembly
- Parts Exploded View ............................................... 91
Seals ..................................................................92
Housing Breather ..............................................94
Wheel End Seal - Parts Exploded View .............95
Remove and Overhaul Wheel End Seal .............96
Wheel Adjustment Systems ..............................97
Verify Wheel End-play Procedure ......................99
Lubricate Wheel End .......................................100
Lubrication ......................................................102
Lube Change Intervals ....................................103
Change Lube ...................................................104
Standpipes ......................................................105
Torque Chart ...................................................107
Appendix
Wheel Differential Lock ...........................................109
Differential Lock Theory of Operation ....................110
Control Systems ....................................................111
Dual Range Axle Shift Systems ..............................113
Troubleshooting .....................................................120
Proper Vehicle Towing ...........................................122
Axle Shift System Components ..............................124
Inter-Axle Differential Lockout
With Interlock Control Valve (straight-air type) ......126
Theory of Operation ...............................................129
Power Flow and Torque Distribution ......................130
Lubrication .............................................................132
Torque Distribution in Low Range .........................136