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Meritor MS-113 - User Manual

Meritor MS-113
45 pages
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Rear Axle
Single-Reduction Carrier
Model MS-113
Maintenance Manual MM-0230
Issued 07-02
$2.50

Table of Contents

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Summary

Service Notes and Information

Before You Begin Service

Instructions for Meritor's model MS-113 single-reduction rear axle before performing procedures.

Safety Information and Procedures

Explains safety alerts, torque symbols, and notes for safe service operations.

Obtaining Service Information and Tools

How to order tools, supplies, and access product/service information via web and phone.

Exploded View of Rear Axle Components

Section 1 Introduction to Rear Axle

Section 2 Removal and Disassembly

Axle Shaft Removal Procedures

Procedures for removing axle shafts from the axle assembly, including safety precautions.

Differential Carrier Removal from Housing

Steps to remove the differential carrier from the axle housing using lifting equipment.

Differential Case and Ring Gear Removal

Procedures to remove the differential case and ring gear from the carrier.

Drive Pinion Removal from Carrier

Steps to remove the drive pinion from the carrier, including yoke and locknut.

Section 2 Continued: Disassembly Steps

Disassembly of Differential Case and Gear Set

Steps for disassembling the differential case and ring gear components.

Differential Case Halves Separation

Further steps for separating differential case halves and removing components.

Drive Pinion Component Removal

Steps for removing components from the drive pinion assembly, including bearings and shims.

Section 3 Prepare Parts for Assembly

Part Cleaning Procedures

Procedures for cleaning ground, polished, rough parts, and axle assemblies.

Drying and Corrosion Prevention

Methods for drying parts and preventing corrosion after cleaning.

Bearing and Gear Inspection

Importance of inspecting all parts, especially bearings and gears, for wear and damage.

Repair or Replace Parts Guidelines

Guidelines for repairing or replacing parts, including fasteners, seals, and gaskets.

Section 3 Continued: Axle Preparation

Repair Welding on Axle Housings

Information on authorized repair welding locations and procedures for axle housings.

Prepare the Axle for Service Operations

Procedures for preparing the axle for welding or other service operations.

Damaged Axle Housing Handling

Warnings against bending or straightening damaged axle housings and proper repair methods.

Section 3 Continued: Fasteners and Adhesives

Fastener Removal and Installation

Procedures for removing fasteners secured with adhesive and installing new fasteners.

Adhesive Application in Bearing Bores

Instructions for applying adhesive in differential bearing bores and on mating surfaces.

Silicone Gasket Material Application

Procedures for applying silicone gasket material to mating surfaces and assembling components.

Gear Set Identification and Information

Information on identifying gear sets, match numbers, and tooth combination numbers.

Section 3 Continued: Special Numbers

Pinion Cone Variation Number Use

Explanation of pinion cone variation numbers and their usage in pinion depth adjustments.

Section 4 Assembly and Installation

Drive Pinion Assembly Procedures

Steps for assembling the drive pinion with its components like O-ring, bearings, and shim.

Differential Case and Ring Gear Assembly

Procedures for assembling the differential case and ring gear, including heating the ring gear.

Differential Case and Ring Gear Installation

Steps for installing differential case halves, ring gear, and securing with capscrews.

Section 4 Continued: Pinion and Gear Installation

Drive Pinion and Differential Gear Installation

Installing capscrews, inspecting differential gears rotating resistance.

Drive Pinion Installation into Carrier

Steps for installing the drive pinion into the carrier, including bearing cups and cage.

Section 4 Continued: Carrier and Gear Installation

Drive Pinion Installation into Carrier (Continued)

Tightening the pinion cage, installing yoke locknut and yoke.

Differential Case and Ring Gear Installation into Carrier

Steps for installing the differential case and ring gear assembly into the carrier.

Section 4 Continued: Bearing Preload Adjustment

Adjust Differential Bearing Preload (Method 1)

Procedures to adjust differential bearing preload using a dial indicator.

Adjust Differential Bearing Preload (Method 2)

Detailed steps for adjusting differential bearing preload using a micrometer.

Section 4 Continued: Runout and Backlash

Check Ring Gear Runout (Radial Movement)

Procedure to check ring gear runout using a dial indicator.

Ring Gear Backlash Adjustment

Specifications and procedures for adjusting ring gear backlash.

Section 4 Continued: Tooth Contact Patterns

Tooth Contact Pattern Inspection

How to check and interpret tooth contact patterns on gear teeth.

Tooth Contact Pattern Adjustment

Interpreting patterns and adjusting drive pinion position for optimal contact.

Backlash and Pattern Adjustment Procedures

Adjusting backlash and drive pinion position based on contact patterns.

Section 4 Continued: Final Assembly Steps

Differential Carrier Installation into Axle Housing

Steps for installing the differential carrier into the axle housing.

Axle Shaft Installation

Procedures for installing axle shafts into the axle assembly.

Fill Axle with Lubricant

Steps for filling the axle with the correct lubricant.

Section 5 Diagnostics

Vehicle Will Not Move Diagnostics

Diagnostic flowchart for troubleshooting when the vehicle will not move.

Differential Noise Diagnostics

Diagnostic flowchart for troubleshooting differential noise issues.

Oil Leak Diagnostics

Diagnostic flowchart for troubleshooting oil leaks in the axle.

Contaminated Lubricant Diagnostics

Diagnostic flowchart for contaminated lubricant found during preventive maintenance.

Section 6 Torque Specifications

Section 7 Lubrication

Lubricant Capacity Information

Table showing lubricant capacity for Meritor MS Series axles.

Oil Change Intervals and Specifications

Table detailing oil change intervals based on vehicle operation.

Axle Oil Specifications by Temperature

Table listing axle oil specifications by type and outside temperature.

Section 8 Towing Instructions

Before Towing or Drive-Away Procedures

Procedures to follow before towing or driving away the vehicle, including axle shaft removal.

After Towing or Drive-Away Procedures

Procedures to follow after towing or driving away the vehicle, including axle shaft reinstallation.

Section 9 Special Tools

Carrier Repair Stand Specifications

Specifications and diagram for building a carrier repair stand.

How to Make a Yoke Bar

Instructions for constructing a yoke bar for specific service procedures.

Meritor MS-113 Specifications

General IconGeneral
BrandMeritor
ModelMS-113
CategoryIndustrial Equipment
LanguageEnglish

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