Specifications
Introduction
8 MAINTENANCE MANUAL
RT-160 SERIES SHOWN
Introduction
Description
Forward Tandem Axle
The inter axle differential (IAD) is located be-
hind the helical gear on the input shaft. The
forward side gear of the inter axle differential
is part of the upper helical gear hub. The thru
shaft is splined to the rear side gear of the inter
axle differential. Figure 2.1.
The forward tandem axles anterior models 140,
145 and 160 .
Use a single reduction, thru drive differential.
The drive gearing is a two helical gear train and
a hypoid ring gear and pinion. Bevel gears are
used in the main differential and the inter axle
differential. Figure 2.1 and Figure 2.2.
Axle Models Covered in This Manual
NOTE: For service procedures on rear dif-
ferential, refer to Maintenance Manual 5,
Singl Reduction Differential, for models pre-
ceding RS-, RT- and RF-Series, and Mainte-
nance Manual 5A, SingleReduction Differ-
ential, for MX-, RS-, RT- and RF-Series
To obtain these publications, refer to the Ser-
vice Notes page on beginning of this manual.
Optional Pressurized Lubrication System
The anterior axles can be equipped with an
optional pressurized lubrication system. This
lteredsystemhasanoilpump driven by the
input shaft. The pump forces the lubricant for
roller bearings of the axes of input and output
and directly to the inter axle differential (IAD)
Optional Driver-Controlled Main Differential
Lock (DCDL)
Both the forward and rear axles can be equipped
with an optional driver-controlled main differen-
tial lock (DCDL). The differential lock is oper-
ated by an air-actuated shift unit located on the
anterior axle differentisal.
• When the differential lock is activated, the
shift collar moves along the splines of the
axle shaft toward the differential case.
Figure 2.1
Figure 2.2
OIL PUMP
INPUT
SHAFT
HELICAL GEAR
INTER AXLE
DIFFERENTIAL
OUTPUT
SHAFT
RING
GEAR
DRIVE
PINION
ENGRANAJE
HELICOIDAL
MOTRIZ
Notch on inter
axle differential
case. Notches are
provided for clear-
ance in assembly
and disassembly.
Tandem Models
RT-34-140 RT-40-145P RT-46-160
RT-34-144 RT-40-149 RT-46-160DEH
RT-34-145 RT-40-160 RT-46-160P
RT-34-145P RT-40-169 RT-46-169
RT-40-140 RT-44-145 RT-50-160
RT-40-143 RT-44-145P RT-50-160P
RT-40-145 RT-40-145P RT-52-160P
RT-40-145A MD/MR/MT 40-140
Tridem Models
RZ-166 RZ-186 RZ-188