Section 2: Introduction; Description; 13X Series Rear Differential Carrier; Stall-Testing Can Damage A Drive Axle - Meritor 13Х Series Maintenance Manual

Description

2 Introduction

13X Series Rear Differential Carrier

The Meritor 13X series single rear differential carrier is a
single-reduction, front-mounted carrier designed for medium duty
applications. It utilizes the latest axle technology to offer optimized
power density, light weight and high efficiency. The MS-13X is a
replacement option for applicable MS-14X and RS-145 models.
Figure 2.1.
The 13X offers the following features:
Up to 59 pounds lighter than the MS-14X carrier
Uses same axle housing as currently used in MX-14X/RS-145
designs
GAWR: 17,000-21,000 pounds
GCW: 40,000 pounds
L and R spindle options
Ratio range of 3.90-6.50
Driveline parking brake-compatible
All bearings in the carrier are tapered roller bearings
Figure 2.1
DRIVE PINION
AND RING
GEAR
TAPERED
ROLLER
BEARING
Figure 2.1
TAPERED
ROLLER
BEARINGS
TAPERED
ROLLER
BEARING
DIFFERENTIAL
GEARS
4011903a

Stall-Testing Can Damage a Drive Axle

Stall-testing is a procedure used to troubleshoot transmissions,
evaluate vehicle performance, and test the service and park brakes.
During stall-testing, or any similar procedure, the drive axle input
receives multiplied torque, which can exceed the specified torque
rating. Excessive torque can damage a drive axle, which will affect
axle performance and component life. A drive axle damaged by
stall-testing will void Meritor's warranty.
Call the Meritor OnTrac™ Customer Call Center at 866-OnTrac1
(668-7221) if you have questions regarding stall-testing.

Use of Traction Chains

Meritor recommends that if you are using traction chains, you
should install chains on both tires on each side of all drive axles on
the vehicle.

Identification

Model Number

An identification tag is attached to the axle housing or the
differential carrier. Figure 2.2 and Figure 2.3. Use the model
number and the ratio number marked on the identification tag and
the number on the carrier to obtain replacement parts.
Figure 2.2
AXLE IDENTIFICATION TAG INFORMATION
Model No. . . . . . . . . . . . . . . . . . . .
Customer No. . . . . . . . . . . . . . . . .
Serial No. . . . . . . . .
Ratio . . . . . . . . . . . .
IDENTIFICATION TAG
LOCATION OF THE IDENTIFICATION TAG, OR STAMP
NUMBER, FOR THE AXLES. LOCATION IS
DETERMINED FROM THE LEFT DRIVER SIDE
LOOKING TOWARD THE FRONT OF THE VEHICLE.
FRONT ENGINE DRIVE — RIGHT REAR,
Figure 2.2
Meritor Maintenance Manual MM-15103 (Issued 07-17)
2 Introduction
Plant . . . . . . . .
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4008141a
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