Service Manual

Table Of Contents
Exploded Views
A
xle Housing Assembly With Forced Cooling Option .....................................................................................1
Axle Housing Assembly – Heavy Housing Using Recessed Carrier Mounting ..............................................2
A
xle Housing With Trunnion Option ................................................................................................................3
Heavy Axle Housing With Central Actuation Service Brake – Top Inlet Port ..................................................4
Heavy Axle Housing With Central Actuation Service Brake – Front Inlet Port ...............................................5
Planetary Wheel End Components.................................................................................................................6
W3H Shaft Speed Wet Disc Service Brake ....................................................................................................7
Two Friction Disc Brake.............................................................................................................................7
Single Friction Disc Brake .........................................................................................................................7
Rigid Mount Axle – No Brake..........................................................................................................................8
Rigid Mount Axle – with Service Brake And Parking Brake............................................................................8
Trunnion Mount Axle – No Brake ....................................................................................................................8
Trunnion Mount Axle – with Service Brake .....................................................................................................8
Section 1: Introduction
Description ......................................................................................................................................................9
Identification ....................................................................................................................................................9
Section 2: Removal & Disassembly
Removal and Disassembly from the Vehicle ................................................................................................10
Disassembly of the Trunnion Assemblies......................................................................................................11
Disassembly of the Axle Housing Bowl Side Trunnion Assembly ...........................................................11
Disassembly of the Carrier Input Trunnion Assembly .............................................................................12
Axle Disassembly Procedure ........................................................................................................................12
Wheel End Disassembly Procedure........................................................................................................12
Disassembly of the Planetary Spider Assembly......................................................................................15
Do Not Remove the Planetary Pinion Shafts from the Planet Spider.....................................................16
Disassembly of the Wet Brake Assembly................................................................................................16
Disassembly of the Axle Shaft, Snap Ring, Sun Gear Assembly............................................................17
Disassembly of Wet Brake Actuation Tubing Assembly..........................................................................17
Section 3: Prepare Parts for Assembly
Clean Rough Parts........................................................................................................................................18
Clean Ground and Polished Parts
................................................................................................................
18
Clean the
Axle Housing
Assembly ................................................................................................................18
Dry Parts After Cleaning ...............................................................................................................................18
Prevent Corrosion on Cleaned Parts
............................................................................................................
19
Inspect Parts
.................................................................................................................................................
19
Tapered Bearing ......................................................................................................................................19
Planetary Wheel End Gearing
......................................................................................................................
20
Needle Roller Bearings
.................................................................................................................................20
Planetary Wheel End Thrust Washers ..........................................................................................................20
Planetary Spider Shaft
..................................................................................................................................
21
Wheel End Spindle
........................................................................................................................................
21
Driver.............................................................................................................................................................21
Planetary Nut Lock System
...........................................................................................................................21
Planetary
Assembly O-Rings
........................................................................................................................
21
Axle Shafts ....................................................................................................................................................21
Axle Housing
.................................................................................................................................................21
Axle Trunnion Components
...........................................................................................................................
21
Wet Brake Assembly Components ...............................................................................................................21
Repairing or Replacing Parts
........................................................................................................................23
Removing Dri-Loc Fasteners
........................................................................................................................
23
Preparing Surfaces, Threaded Holes and Fasteners For Later Assembly ...................................................23
Flush Lube from the
Axle ..............................................................................................................................23
Table of Contents