TECHNICAL INFORMATION 9- 11
Gear ratios
1
st
......................................................................... 14.94
2
nd
........................................................................ 11.73
3
rd
......................................................................... 9.04
4
th
........................................................................ 7.09
5
th
......................................................................... 5.54
6
th
.........................................................................4.35
7
th
..........................................................................3.44
8
th
......................................................................... 2.70
9
th
........................................................................ 2.08
10
th
........................................................................ 1.63
11
th
.......................................................................... 1.27
12
th
........................................................................ 1.00
Reverse 1
st
......................................................... 17.48
Reverse 2
nd
........................................................ 13.73
ALLISON TRANSMISSION
Allison B500 (B500R with the optional output
retarder) electronically controlled six speed
automatic transmission.
See appendix C for the fluid level sensor code
description.
Gear Ratios
1
st
......................................................................... 3.510
2
nd
.......................................................................... 1.91
3
rd
.......................................................................... 1.43
4
th
......................................................................... 1.00
5
th
.........................................................................0.74
6
th
........................................................................ 0.64
Reverse ............................................................... 4.80
Converter ............................................................. 1.58
Differential ratio ................................................. 3.91
Differential ratio (optional) .............................. 3.58
PROPELLER SHAFT
Dana SPL250
BRAKES
The features of the braking system include a
dual system where the front and rear circuits are
completely independent from each other. The
brakes are air operated disc type brakes. The
emergency/parking brakes are located on the
drive. To ensure a constant running clearance
between pads and disc, the brakes are equipped
with a non-wearing, automatic adjuster
mechanism.
BRAKE CHAMBER EFFECTIVE AREA
Front axle (Rigid front axle) ........................... 24 in
2
Drive axle ................ 24/24 in
2
(service/emergency)
Tag axle ............................................................. 16 in
2
AIR SYSTEM
Compressed air is provided by a twin cylinder,
31.8 cfm Wabco, gear-driven, water-cooled and
engine oil lubricated air compressor.
ANTILOCK BRAKING SYSTEM (ABS)
The antilock braking system has one Electronic
Control Unit (ECU) controlling a 6-sensor/5-
Summary of Contents for H 2018 Series
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