Spicer Tandem Drive Axles Pro-40 Single Reduction and Single Reduction with Differential Lock - Manual (Page 2)

Introduction
Model Listing ..............................................................1
Model Information ......................................................1
Model Identification ....................................................2
Part Identification .......................................................2
Ring Gear and Pinion ..................................................3
General Information ................................................4
Important Notice .........................................................4
Inspection
Failure Analysis .......................................................5
How to Diagnose a Failure ......................................5
Prepare the Parts for Inspection ..............................6
Find the Cause of the Failure ...................................6
Correct the Cause of the Problem ...........................6
Inspect Axle Housing ..................................................7
Inspect Components ...................................................7
Inspect Primary Gearing .............................................8
Check:
Input Shaft End-play (Forward Axle) Adjust .............8
Output Shaft End-play (Forward Axle) Adjust ..........8
Tandem Axle Assemblies
......................................9
Differential Carrier Assembly - Forward .......10
Disassemble Carrier Assembly - Forward
Standard Differentials ...........................................10
Diff-Lock Models ..................................................10
Engage via Air Pressure ........................................10
Engage Manually ..................................................10
Install Differential Carrier - Forward ....................11
Inter-Axle Lockout Types - Forward
Parts Exploded View .............................................12
Disassemble Lockout ........................................13
External Type Lockout ......................................13
Integral Type Lockout .......................................13
Install Lockout ..................................................13
External Type Lockout ......................................13
Integral Type Lockout .......................................13
Power Divider - Forward
Parts Exploded View .............................................14
Disassemble, Assemble & Overhaul
In
Vehicle ......................................................15
Install Power Divider to Carrier Assembly
In
Vehicle ......................................................18
Disassemble, Assemble & Overhaul
Out of Vehicle ............................................... 20
Install Power Divider to Carrier Assembly
Out of Vehicle ................................................23
Lube Pump
Disassembly .........................................................25
Installation ............................................................25
Lube Manifold
Disassembly ........................................................ 26
Installation ........................................................... 26
Measure and Adjust Input Shaft End-Play ............28
Carrier Assembly - Forward
Parts Exploded View ........................................ 30
Disassemble Carrier Assembly ......................31
Disassemble Wheel Differential
Models w/ Wheel Differential Lock....................31
Models with Ring Gear Thrust Bolt ................31
Disassemble Wheel Differential .....................32
Disassemble Pinion Assembly ...................... 33
Front Axle Pinion Assembly - Forward
Parts Exploded View ........................................ 34
Disassemble and Overhaul Drive Pinion........ 35
Replace Pinion Bearing Cage Cups ............... 36
Adjust Pinion Bearing Preload .......................37
Trial
Buildup ..................................................37
Final Buildup ................................................ 38
Install Drive Pinion Assembly ........................41
Wheel Differential - Forward
Parts Exploded View .........................................42
Disassemble, Overhaul, and Assemble
Wheel Differential - Forward ............................ 43
Disassemble Wheel Differential .................... 43
Overhaul & Assemble Wheel Differential ...... 44
Measure and Adjust Carrier Assembly .......... 46
Adjust Backlash and Preload ........................ 46
Change Backlash Setting ..............................47
Measure Ring Gear Runout ...........................47
Measure Ring Gear Total ...............................47
Adjust Ring & Pinion Tooth Contact Pattern .. 48
Adjust Contact Pattern ................................. 48
Adjust Pinion Position ................................... 49
Adjust Ring Gear Position (Backlash) ........... 49
Wheel Differential Lock - Forward
Parts Exploded View ........................................ 50
Install and Adjust Wheel Differential Lock .....51
Install and Adjust Ring Gear Thrust Bolt ........52
Housing & Output Shaft Assembly - Forward
Parts Exploded View ............................................ 53
Disassemble Output Shaft Assembly .................... 54
Overhaul & Assemble Output Shaft Assembly ...... 55
Measure and Adjust ..............................................57
Replace Seal .........................................................57
Guidelines for Reusing Yoke ................................. 58
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