Conmet PreSet Plus

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Table of Contents3
Introduction5
Conventional Hubs5
Preset Hub Assemblies5
Preset Plus Hub Assemblies5
Inspection6
Hazard Alert Messages6
Wheel End Inspection General Guidelines6
Driver Pre-Trip Visual Inspection6
In Route Inspections6
Service Interval7
Lubrication Analysis7
Identification8
Wheel Mounting Systems8
Hub Pilot Wheel Mounting8
Ball Seat Wheel Mounting System8
Identifying Conmet Hub Assemblies8
Vehicle Identification Number (VIN)8
Casting Number8
Machining Number8
Final Hub Assembly Number9
Julian Date9
Conventional Wheel Hubs9
Preset Wheel Hubs9
Preset Plus Wheel Hubs9
Conventional Wheel Hubs10
Hub Removal and Disassembly10
Component Inspection and Replacement Hazard Alert Messages11
Clean and Dry Components11
Worn or Damaged Components11
Hub and Component Cleaning11
Inspecting Bearing Cups and Cones12
Removing Cups in Aluminum Hubs12
Removing Cups in Iron Hubs12
Installing a New Cup in Aluminum Hubs12
Installing a New Cup in Iron Hubs12
Wheel Studs13
Stud Removal13
Stud Replacement13
Hub, Drum and Wheel Inspection13
Abs Tone Ring Inspection (as Applicable)13
Removal and Installation of Machined Abs Tone Ring14
Removal and Installation of Stamped Steel Abs Tone Ring14
Removal and Installation of Bolt on Abs Tone Rings14
Reassembly15
Conventional Wheel Hubs Assembly15
Reinstallation16
Installing Conmet Conventional Wheel Hubs16
Spindle Preparation16
Conventional Hub Installation16
Manual Bearing Adjustment Procedure (Reference TMC RP618)17
Service Parts18
Preset Wheel Hubs21
Hub Removal and Disassembly21
Component Inspection and Replacement Hazard Alert Messages22
Clean and Dry Components23
Worn or Damaged Components23
Hub and Component Cleaning23
Inspecting Bearing Cups and Cones and Bearing Spacer23
Removing Cups in Aluminum Hubs23
Removing Cups in Iron Hubs24
Installing a New Cup in Aluminum Hubs24
Installing a New Cup in Iron Hubs24
Wheel Studs24
Stud Removal24
Stud Replacement24
Hub, Drum and Wheel Inspection25
Abs Tone Ring Inspection (as Applicable)25
Removal and Installation of Abs Tone Ring25
Removal and Installation of Stamped Steel Abs Tone Ring25
Removal and Installation of Bolt on Abs Tone Rings (for Disc Brakes)26
Reassembly27
Preset Wheel Hubs27
Reinstallation29
Installing the Preset Wheel Hub Assembly29
Spindle Preparation29
Mounting the Hub29
Spindle Nut Torque29
Service Parts30
Preset Plus Wheel Hubs33
Hub Removal and Disassembly33
Component Inspection and Replacement Hazard Alert Messages35
Clean and Dry Components35
Worn or Damaged Components35
Hub and Component Cleaning35
Inspecting Bearing Cups and Cones and Bearing Spacer35
Removing Cups in Aluminum Hubs36
Removing Cups in Iron Hubs36
Installing a New Cup in Aluminum Hubs36
Installing a New Cup in Iron Hubs36
Wheel Studs36
Stud Removal37
Stud Replacement37
Hub, Drum and Wheel Inspection37
Abs Tone Ring Inspection (as Applicable)37
Removal and Installation of Abs Tone Ring37
Removal and Installation of Stamped Steel Abs Tone Ring38
Removal and Installation of Bolt on Abs Tone Rings (for Disc Brakes)38
Reassembly39
Preset Plus Wheel Hubs39
Spindle Nut and Spiral Snap Ring Reassembly40
Reinstallation41
Installing the Preset Plus Wheel Hub Assembly41
Service Parts42
Lubrication45
Drive Hub Lubrication45
Steer and Trailer Hubs with Oil Lubricant45
Trailer Hubs with Semi-Fluid Grease Lubricant45
Brake and Wheel Installation47
Caliper Installation47
Wheel Installation47
Hub Pilot Wheel Mounting System47
Ball Seat Wheel Mounting System48
Wheel Hub and Rotor50
Wheel Hubs with Conmet Disc Brake Rotors50
Part Number Identification50
Rotor Identification50
10. Hub and Rotor Inspection51
Hazard Alert Messages51
Disc Brake Rotor Inspection51
Heat Checks51
Cracks51
Deep Grooves or Scoring52
Blue Marks or Bands52
Polished Rotors52
Martensite Spotted Rotors52
Grease-Stained Rotors52
Lining Transfer53
Clogged or Restricted Vent Holes53
Rotor Runout53
Rotor Thickness53
Rotor Resurfacing54
11. Hub and Rotor Removal and Disc Replacement55
Hazard Alert Messages55
Hub and Rotor Removal55
Disc Brake Rotor Replacement55
Part Identification55
Disc Brake Rotor Replacement56
Rotor Replacement Procedures56
Conmet Flat Rotors56
Conmet hat Rotor66
Conmet U-Shaped Rotors67
Wheel Hub and Rotor - Service Parts List71
Wheel Torque Specifications72

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