Dcdl (Driver-Controlled Main Differential Lock) - PREVOST H3-41 Maintenance Manual

SECTION 11: REAR AXLES
2. MERITOR DRIVE AXLE
2.1 DESCRIPTION
The Meritor drive axle is equipped with a single
reduction standard carrier mounted in front of
the axle housing. The carrier consists of a
hypoid drive pinion, a ring gear set and gears in
the differential assembly.
FIGURE 1: DRIVE AXLE
A straight roller bearing (spigot) is mounted on
the head of the drive pinion. All other bearings in
the carrier are tapered roller bearings. When the
carrier operates, there is a normal differential
action between the wheels all the time.
FIGURE 2: DIFFERENTIAL ASSEMBLY
Several speed ratios are available for the drive
axle. These ratios depend upon the motor and
transmission. Also, special applications may
suggest slightly different gear ratios.
Additional information is found in the following
manuals, included on your vehicle Technical
Publications refer to flash drive:
6
PA1621 Maintenance Manual All Series | January 2017
Meritor Maintenance Manual 5A – single

reduction differential carriers
 Meritor Maintenance Manual 23A – Bus
and Coach Rear Drive Axles
11019
Meritor

Approved Rear Drive Axle Lubricants
2.2 DCDL (DRIVER-CONTROLLED MAIN
DIFFERENTIAL LOCK)
Meritor Single-reduction carriers with driver-
controlled main differential lock (DCDL) have the
same type of gears and bearings as the
standard-type carriers. The differential lock is
operated by an air actuated shift assembly that is
mounted on the carrier.
Technical Bulletin TP-9539