1. technology and computing

PERFECTLY MATCHED
AXLE & TRANSMISSION SYSTEMS FOR BUSES & COACHES
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Contents
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PERFECTLY MATCHED –
A SYSTEM FROM A SINGLE SOURCE
Page4
AXLE SYSTEMS FOR CITY BUSES Page6
ECOLIFE – THE UNIVERSAL GENIUS
Page10
DRIVELINE ELECTRIFICATION –
INTO THE FUTURE WITH ZF TECHNOLOGY
Page16
PERFECTLY MATCHED –
AXLES AND TRANSMISSIONS IN THE COACH Page 18
AXLE SYSTEMS FOR COACHES
Page20
ECOLIFE – THE UNIVERSAL GENIUS IN THE COACH
Page22
AS TRONIC Page24
AS TRONIC LITE Page25
ECOSHIFT Page26
INTARDER – SAFE BRAKING
Page27
TAG AXLE SYSTEMS
FOR CITY BUSES AND COACHES
Page28
ZF PLUS
A SMOOTH TRANSMISSION SERVICE LIFE
Page29
ON SITE, WORLDWIDE – ZF SERVICES
Page30
MOBILITY IS ESSENTIAL
The increasing costs of private transport,
a growing environmental awareness, and
impending gridlocks in major cities make
public transport the increasingly more
appealing option.
Buses are growing in popularity and
importance not only for short distances
in cities and urban areas but also for
longer coach journeys.
Driveline components must be perfectly
aligned together to ensure passenger
comfort. ZF components such as transmissions and axles, steering systems,
dampers, and other parts are perfectly
matched and together deliver a far more
effective all-round system solution than
the sum of the individual parts would do.
Everyone can profit from this solution –
including operators. To ensure the continuing popularity of buses.
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PERFECTLY MATCHED
A SYSTEM FROM A SINGLE SOURCE
The demands placed on public transport are constantly growing. Large
numbers of passengers have to be transported quickly without neglecting
economic and environmental aspects.
Axle and transmission specialists from ZF work together to optimally meet
the needs of municipalities, public transport authorities, and passengers.
All-round product know-how
The high transmission-ratio spread also protects
Axle-drive ratios perfectly adapted to every single
the axle‘s gearing, which therefore records a longer
bus application combined with a fine-tuned
service life.
transmission ratio are essential to minimize fuel
consumption and ensure a long service life and
From advice on which driveline to choose to finding
low noise level. Perfectly matched components
the optimum overall gear ratio as well as installation
such as the EcoLife automatic transmission and
checks and customized services, ZF offers its custo-
the AV 132 driven portal axle enable passengers
mers all-round product expertise and know-how
to enjoy fast and comfortable mobility.
from one single source.
Aligning the transmission with the axle can usually
prevent any intervention in the engine control.
This ensures a smooth transfer even when decelerating: If a wheel is in danger of locking, the transmission's retarder torque is reduced - the wheel
brakes on the axles are then responsible for gradu­
ally transferring the brake torque up to the wheellock limit.
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FRONT AXLE SYSTEMS
FOR CITY BUSES
Passengers no longer have to negotiate steps to board the low-floor city bus
with ZF front axle systems. Independent front suspensions and systems with
axle beams offer an outstanding combination of optimum steering behavior
and superb ride comfort.
Improved ride comfort with
RL 75 A ZF front axle system: robust all-rounder
ZF independent front suspensions
Maintenance-free, compact wheel bearings and opti­
The RL 82 EC independent front suspension for full
mized steering kinematics make this beam axle system
low-floor, low-entry, and double-decker buses is an
both cost-effective and economical.
innovation in axle technology. Combined with an intel-
The RL 75 A is also available as a complete axle system.
ligently designed spring and damper system, the high-
Thanks to the design of the axle beam, a wide center
strength and weight-optimized components guarantee
aisle is possible between the front wheel arches in con-
benchmark driving safety and ride comfort. Thanks to
junction with a floor height of no more than 350 mm.
the RL 55 EC, ZF independent front suspensions are
The exact kingpin bearing and fine-tuned kingpin incli-
now avail­able in the midibus. The high level of wheel
nation and caster ensure precise steering. The arrange-
deflection signi­ficantly reduces the turning circle in
ment of longitudinal rods and V-rods optimized with
comparison to rigid axles. Similar to the RL 82 EC,
regard to kinematics guarantees precise axle guidance
other advantages include high axle load, added comfort,
in all driving situations. The steering angles of up to
and reduced body roll.
55° deliver the maneuverability required for city traffic.
RL 82 EC for city buses
RL 55 EC for midibuses
Like all other ZF bus axle systems, the RL 75 A is fitted
as standard with state-of-the-art internally ventilated
THE BENCHMARK IN COMFORT
disk brake technology.
AND SAFETY
■ Optimum maneuverability thanks to high
steering angles
ROBUST AND LOW-MAINTENANCE
■ Considerable increase in roll-off, steering, and ■ Good maneuverability
driving comfort
■ Optimum steering behavior
■ Supports active safety with improved vehicle handling ■ Good suspension
and very precise steering
■ Precise axle guidance
■ Higher roll stiffness
■ State-of-the-art internally ventilated disk brake ■ Reduced body roll
technology
■ Balanced response and brake behavior
RL 75 A for city buses and intercity buses
FOR MORE INFORMATION
www.zf.com/corporate/en/products/product_range/buses
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REAR AXLE SYSTEMS
FOR CITY BUSES
ZF portal axles provide continuous step-free passenger areas with no raised
platforms. Faster boarding and alighting of passengers and shorter stop times
support higher average speeds. This means that more passengers can be
transported each day.
Driven and non-driven portal axle
For power from the center
ZF offers the driven axle up to a complete system inclu-
The city bus drive axle range are completed by the
ding air springs, dampers, and radius rods. The wheel
A 132 and AV 132 T-Drive for low-entry vehicles with
heads of the AV 132 equipped with low-mainten­ance
centrally arranged engine.
hub units (compact bearings) also reduce the time to
The A 132 hypoid driven axle system was equipped
replace brake disks. Altogether, the axle system weight
specially with a lowered V-rod in order to minimize
is below 1000 kilograms. Specially ground bevel gears
the floor height in the passenger compartment.
ensure quiet running and minimal noise. The wide
Furthermore, the axle is available with a ratio of i>5
range of ratios also covers electric drive concepts such
that is required for this kind of application. This axle
as trolley and hybrid drives. The lowered, weight-
concept is suitable for buses up to a gross vehicle
optimized axle housing and the laterally positioned
weight of 20 tons.
differential create additional space for a step-free center
The AV 132 T-Drive with two reduction stages is used
aisle. The non-driven portal axle is designed as an inter-
for heavy vehicles. With these developments, ZF offers
mediate or tag axle for articulated buses and is suitable
two additional, high-quality axle systems that vehicle
for various standard driveline concepts.
manufacturers can use for conventionally configured
Wear part compatibility with AV components constitutes
drivelines.
AV 132 driven portal axle system
AVN 132 non-driven portal axle
A 132 hypoid driven axle system
AV 132 T-Drive driven axle system
a major advantage for OEMs and operators in terms of
servicing and cost-effectiveness.
UNCOMPROMISINGLY GOOD
■ For low-entry vehicles and
QUIET AND FAST THROUGH THE CITY
centrally arranged engine
■ Rapid, step-free entry and exit
■ Weight optimized
■ Comfort for passengers
■ Quiet running
■ Quiet running
■ Service-friendly compact bearing units
■ Floor heights of just 405 mm
■ Smaller installation dimensions – longer propshafts
■ Also available as non-driven portal axle
■ Reduced propshaft deflection angles
FOR MORE INFORMATION
www.zf.com/corporate/en/products/product_range/buses
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EcoLife
The Universal Genius in the City Bus
Local public transport faces many challenges in the shape of growing compe­
titive pressure, rising fuel prices, larger vehicles, and environmental protection.
ZF offers the most compelling solution with the powerful EcoLife 6-speed automatic transmission. Economical, ecological, and comfortable.
The EcoLife automatic transmission
at low engine speeds. In turn, fuel
is suitable for every bus application.
consumption is reduced by up to
Whether for use in city buses or
5 percent when compared to auto-
on intercity routes – EcoLife is the
matic transmissions with less than
right transmission for every appli­­-
6 gears. This also reduces noise
cation.
levels.
The powershift transmission has an
The integrated primary retarder
optimal gear ratio spread combined
is incorporated into the vehicle's
with especially favorable mechanical
brake management system and
efficiency.
supports high braking power even
UNCOMPROMISINGLY GOOD
The torque converter lock-up clutch
at lower speeds. This effectively
■ 6 gear steps for optimum engine speed
shuts shortly after setting off to
preserves the vehicle's service
and torque range
effectively use engine power. Com-
brakes and produces less environ-
■ Fuel savings of up to 5 % possible
bined with the torque converter
mentally damaging brake wear.
■ Torque converter for starting with integrated ratio, the six gears produce a maxi-
Longer intervals between oil
turbine torsional damper
mum total spread of 12.5.
changes result in less used oil and
■ Fully automatic shifting
The hydrodynamic torque converter
contribute to preserving your
■ TopoDyn Life – driving resistance-dependent
with standard turbine torsional
budget as well as the environment.
damper enables high input torques
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shift control
■ Primary retarder with dual cooling system
FOR MORE INFORMATION
www.zf.com/ecolife
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ECOLIFE
THE UNIVERSAL GENIUS IN BRT
The world's megacities are growing. Large numbers of people want to get to their
destination fast. For transport operators and city planners, the solution comes in
the shape of the bus rapid transit (BRT) concept. Short stops, smooth acceleration
and braking, speed between stops, and rapid boarding and alighting are demanding
requirements for driver and vehicle alike.
In combination with low-floor axle systems from ZF,
This lowers investment costs and supports higher aver-
approx. 40 percent longer service life than other
faster boarding and alighting is possible without requir-
age speeds. Increased cost-effectiveness, weight optimi-
automatic transmissions. It is the only automatic trans-
ing additional infrastructure.
zation, environmental friendliness, and noise reduction
BRT expertise comes from ZF
EcoLife offers a compelling solution here with an
The wide ratio range of the EcoLife automatic trans­
mission with six mechanical gears supports high speeds
at low engine speeds and thus fulfills all requirements
mission with dual heat exchanger which prevents the
in fast BRT lines. The hydrodynamic torque converter
transmission overheating even in this type of continu-
integrated upstream from the planetary gearsets adds
ous operation. This reduced exposure to high tempera-
an additional boost to the overall gear ratio. This
tures slows down the ageing of the transmission oil
achieves greater tractive force to guarantee rapid
which means it has to be changed less frequently.
are further advantages.
acceleration during start-up. Multidisk clutches and
brakes in single-side design ensure fastest possible
gear shifting.
POWERFUL, FAST, AND DURABLE
With input torques of up to 2 000 newton meters, the
■ High speeds at low
transmission system has been designed for modern,
engine speeds
high-powered vehicles.
■ High acceleration and braking power
■ High input torque
As buses used in BRT networks are faster and are op-
■ Longer axle service life with two-stage ratio
erated at a higher frequency than in normal city traffic,
■ Low lifecycle costs
they record far higher performances in a year.
■ Low investment costs thanks to low-floor technology
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ECOLIFE AND TOPODYN LIFE
FLEXIBLE EVEN FOR ITS SECOND LIFE
TOPODYN LIFE SMOOTHLY SETS THE SHIFT POINTS.
A PROGRAM CHANGE IS NOT REQUIRED.
optimum economy-oriented shifting characteristics
for comfortable, economical driving in flat topography
The best possible shift point,
>
continuously variable – always!
The intelligent TopoDyn Life shift control unit makes bus riding even more costeffective and economical as it dynamically adjusts the shifting strategy to suit
topography and driving resistances. Whether used in city buses or intercity buses:
EcoLife can be adapted to every application with its high tractive force and wide
transmission-ratio range.
Ideal shifting in city buses and coaches
From city bus to intercity bus – or vice versa
With TopoDyn Life, the EcoLife transmission adjusts
Approximately twenty thousand used buses are sold
the shifting characteristics to the respective route pro-
each year in Europe. For many fleet owners, the vehic-
file during travel. The optimal shift points are calculated
le's resale value plays an important role when selecting
considering the topography data, current load, accele-
which vehicle to buy. With EcoLife, you do not need to
ration values, and variable driving resistances, such as
decide between a city and an intercity bus transmission
road surfaces or corner angles. TopoDyn Life is the only
because the transmission ratio offers supreme flexibi-
software that immediately recognizes uphill gradients
lity. Various speed ranges can be reached with the same
and adjusts the shifting point on the first vehicle incli-
axle ratio. And not just on the flat - EcoLife delivers suf-
nation. It does not require an additional sensor.
ficient tractive force even for topographically challen-
optimum performance-oriented shifting characteristics
for comfortable, economical driving in demanding topography
ging sections. EcoLife will slot in perfectly with the new
UNCOMPROMISINGLY ECONOMICAL
application as the bus takes on its second life.
■ Terrain-dependent shifting
■ Topography recognition after just 10 meters
■ High braking of primary retarder with
FIRST CHOICE IN A SECOND LIFE
automatic downshifting on downhill gradients
■ 6 gears and high spreading
■ Reduced fuel consumption
for all application profiles
■ Less wear on brakes
■ Powerful and economic
■ Reduced maintenance and repair costs
■ Global service network
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DRIVELINE ELECTRIFICATION –
INTO THE FUTURE WITH
ZF TECHNOLOGY
City buses and intercity buses are set to become environmentally friendlier and quieter.
Lower emissions and noise thanks to hybrid solutions will open up the green zones
in inner cities to buses. Various types of energy-efficient full-electric drives will also
augment the options available.
Proven ZF technology provides the ideal basis for
No special wheel components are required with the
innovative drive concepts. Some of these are already
AVE 130. The tire-rim combinations used in normal
being used in international growth markets.
buses as well as the standard disk brakes can both
be used. The brakes are fitted in the same low-main-
Zero-emission driving
tenance position as with the standard axles.
The AVE 130 electric portal axle is ideally suited to
various drive concepts for city buses: whether as a
Designed for progress
serial hybrid, all-electric drive powered by a fuel cell
The hybrid version of the tried-and-trusted auto-
or battery, or from the trolley wire. The increased
matic ZF-AS Tronic lite transmission is currently
use of brake energy or - in combination with hybrid
undergoing field testing. This hybrid model reduces
drives - the use of smaller combustion engines helps
pollutant and noise emissions. The wide spread of
to considerably reduce fuel consumption and emis-
the six gear steps supports low-speed driving and
sion of pollutants in comparison to conventional
conserves fuel. The space-saving integration of the
concepts. Lane-independent, zero-emission driving
electric motor ensures the transmission remains
is now also achievable in the city. This enormously
compact.
increases cost-effectiveness and availability for use.
Intelligent use of energy
Each wheel is driven by a compact, high-speed,
The combination of intelligent electric drive con-
liquid-cooled asynchronous motor to keep the axle
cepts paves the way for systems with functions such
weight including the integrated motors low. As
as start-stop operation, electrically assisted braking,
no separate engine or propshaft are required, this
or the use of braking energy to charge the hybrid
reduces the amount of space required and the
batteries (depending on the configuration level).
vehicle's weight. The extra space allows room for a
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more powerful battery or an upgrade of the vehicle's
Whether as an electric drive, mild, or full hybrid
interior in order to transport more passengers.
drive, ZF offers the right solution for each concept.
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PERFECTLY MATCHED – AXLES AND
TRANSMISSIONS IN THE COACH
Harmonic: ZF driveline and chassis technology
Aspects such as weight optimization, noise reduc-
Safety, comfort, power, and maneuverability are indispensable attributes of
modern-day coaches. Perfectly matched complete systems from ZF help make
coach travel a veritable experience. Consummate touring comes courtesy of
the bundled expertise garnered over decades in the area of ZF chassis and
driveline technology.
tion, wear minimization, ease of maintenance –
those are just a few of the issues on which the
development departments at ZF work relentlessly.
This applies equally to chassis technology as it does
to driveline technology. For that reason, the transmission and chassis form a single unit for us at ZF.
This approach characterizes our products.
In this way, ZF rear axle systems mesh with ZF
transmission systems to create an unbeatable synergy. The result is cutting-edge technology systems
which deliver outstanding value for money.
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FRONT AND REAR AXLE SYSTEMS
FOR COACHES
ZF offers complete systems for front, driven, and tag axles for coaches. Alongside
other aspects, directional stability, maneuverability, comfort, ease of servicing as
well as safety, profitability, and environmental compatibility are vital factors which
underpin development at ZF.
Independent front suspensions for coaches
BON VOYAGE!
Quiet and comfortable
SUPERB RIDE COMFORT
The RL 75 E front axle system provides the driver as
■ Reduced body roll and smaller turning circle
The most significant advantages of the A 132 rear axle
■ Quiet operation
well as the passengers with supreme traveling comfort
compared to steering axles with axle beam
system are weight reduction, low noise emissions, and
■ Smaller installation dimensions – longer propshafts
and its handling characteristics support the trend to-
■ Reduction of unsprung masses means less load
high efficiency. Without compromising stability at all,
■ Reduced propshaft deflection angles
ward longer buses measuring between 13 to 15 meters.
on the road surface and optimum comfort the axle system's weight - including all damping and
■ Service-friendly compact bearing units
One of the outstanding features of the RL 75 E is the
■ Increased maneuverability
suspension elements - has been reduced to less than
■ Weight optimized design
large steering angle of up to 60°. With the RL 55 EC,
(with RL 75 E steering angle of up to 60°)
1 000 kilograms. The reduction of unsprung masses
midibuses can now profit from the advantages of an
■ Supports active safety with improved vehicle handling results in improved ride comfort. The smooth running
independent front suspension: more comfort, less roll,
and very precise steering
of the ground bevel gearsets reduces the noise level
and a smaller turning circle. The RL 55 EC can be fitted
■ For vehicles wider than 2.3 meters
inside the vehicle.
in vehicles from 2.30 meters wide.
Small installation dimensions for the axle drive unit
facilitate longer propshafts with reduced deflection
angles, thus further reducing noise. Compact bearings
in the wheel heads lead to a consider­able reduction in
maintenance effort.
RL 75 E for coaches
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RL 55 EC for midibuses
A 132 driven hypoid axle system
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ECOLIFE
THE UNIVERSAL GENIUS IN THE COACH
When the journey is the destination, EcoLife is on board. Whether for touring, rural
routes, in the city, or in mixed service: ZF's powerful automatic transmission sets
worldwide standards for comfort, vehicle handling, and efficiency. EcoLife is a convincing solution in any situation, even in case of difficult topography.
FOR MORE INFORMATION
www.zf.com/corporate/en/products/product_range/buses
Powerful and universally applicable
EcoLife also tackles challenging routes with ease: Up
The hydraulic torque converter allows slow maneu­
The dual cooling system with transmission and retarder
INNOVATIVE TECHNOLOGY
to 2 300 newton meters of torque and 6 speeds nego­
vering without clutch wear. After a short start-off
heat exchanger reliably protects against overheating
WITH ADDED VALUE
tiate any incline and ensure high average speeds at low
phase, the torque converter is bypassed which guaran-
and thus extends oil change intervals.
■ 6 mechanical driving gears plus
engine speed. The standard integrated TopoDyn Life
tees maximum energy efficiency. The standard torsional
drive program makes a major contribution by activat-
vibration damper reduces shift speeds so that the
The wide-ranging applications of the durable universal
■ High ratio range
ing the gearshift strategy which delivers optimum fuel
engine can run at lower speeds.
genius EcoLife also increase the bus's resale value,
■ Fully automatic shifting
since it will slot in perfectly with the new application
■ Load shifting without traction power loss
as the bus takes on its second life.
■ Driving resistance-dependent shift control
consumption based on the topography and driving
resistance.
As a result, this minimizes fuel consumption and noise
torque converter
development. Shift errors on an incline or hot brakes
■ Dual heat exchanger concept
going downhill? Not with an automatic transmission
■ Primary retarder
with a primary retarder! As this does not depend on the
output speed, it delivers maximum deceleration almost
up to vehicle standstill.
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AS TRONIC
1 TRANSMISSION, 12 GEARS,
AN INFINITE NUMBER OF OPTIONS
AS TRONIC LITE
AUTOMATICALLY ECONOMICAL,
COMFORTABLE, AND SAFE
For years, AS Tronic has been outstanding on intercity routes. With the automatic
12-speed transmission system, bus drivers ensure their passengers get to their destination safely and comfortably, worldwide. And with a consistent price-performance
ratio that makes the AS Tronic even more compelling.
Whether in light coaches, shuttle services, or school buses: Alongside cost-efficiency aspects, the comfort and safety of passengers are paramount. AS Tronic lite
offers light motorized buses the chance to profit from the benefits of automatic
transmissions.
1 transmission, 12 gears, an infinite number of options
RELIABLE, PROVEN, EFFICIENT
Driving made easy
EFFICIENT MOBILITY
AS Tronic combines tried-and-trusted ZF technology
■ Fully automatic shifting;
Full concentration is vital in rapidly changing traffic
■ Fully automatic shifting;
with modern electronics. The control unit of the
manual gear selection possible
situations. The automatic 6-speed shift system supports
manual gear selection possible
12-speed automatic transmission provides for optimally
■ Higher level of driving safety – maximum driving the driver by eliminating the need to operate the clutch
■ Higher level of driving safety – maximum driving coordinated shifting and clutch work. And it is not
comfort
and gear lever. Thus, incorrect gear changes become a
comfort
only passengers that benefit from this unrivaled level
■ Saves fuel
thing of the past with AS Tronic lite. This reduces fuel
■ Saves fuel
of comfort. Drivers are also much more relaxed at the
■ Superb reliability and long transmission service life
consumption, protects the engine, and ensures long
■ Superb reliability and long transmission service life
wheel. Furthermore, AS Tronic also lets the bus driver
■ Reduced clutch wear
transmission service life. Short shifting times ensure
■ Reduced clutch wear
ultimately choose – at the push of a button they can
■ZF-Intarder
the dynamic performance needed for acceleration.
switch anytime from automatic to manual mode and
The electrohydraulically shifting transmission with a
vice versa.
space-saving modular design is suitable for engines with
The high number of closely stepped gears enables the
an input torque of up to 1 100 newton meters.
engine to always operate in the most economical range.
Reduced clutch wear and less brake dust in comparison
In addition, the integrated Intarder provides safe, fade-
to a manually operated transmission cut maintenance
free deceleration and reduces brake wear. With its
costs and environmental impact.
reliability and long service life, AS Tronic also improves
the operator's bottom line. AS Tronic: more safety on
the road and more efficiency in the company.
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ECOSHIFT: MORE THAN A MANUAL
TRANSMISSION
INTARDER
SAFE BRAKING
Driving a bus has never been so much fun. Comfortable, economical, safe, and
ecological. The modularly designed EcoShift 6-speed transmission model range
adds new qualities to the driveline of city buses, intercity buses, and coaches,
and ensures maximum flexibility.
Safety is paramount when it comes to passenger transport. Effective brakes are
more important than the most powerful engine. The ZF-Intarder that is integrated
in the transmission relieves the service brakes by up to 90 percent and, in doing so,
reduces the impact on the environment and maintenance costs.
For city buses, intercity buses, and coaches
MODERN MODULAR TRANSMISSION KIT
Maximum safety and highest level of comfort
EFFICIENT AND WEAR-FREE
EcoShift replaces conventional 6-speed bus trans-
■ Manual shifting – light and precise
With the ZF-Intarder, the service brakes on coaches
■ Wear-free continuous braking
missions in the torque ranges between 1 000 and
■ 6 gear steps with a large
always remain cool and fully functional even under
■ Assumes up to 90 percent of all braking
2 100 newton meters. With optional extension modules,
transmission-ratio range
continuous operation. Gentle brake modulation is
processes
such as the new ZF-Intarder for more safety or an addi-
■ Noise optimized
facilitated by five brake levels – not only in moun-
■ Improved safety
tional cooling system for especially demanding oper-
■ Light and compact
tainous terrain.
■ Less brake wear – less brake dust
ating conditions, transmissions can be tailor-made for
■ Lower churning loss thanks to pressure oil lubrication
The latest version of the ZF transmission brake gene­
■ Higher average speeds
each application specification. Compared to previous
■ Extension modules: Servoshift, ZF-Intarder, rates up to 25 % more braking torque but weighs less,
■ Compatible with many ZF transmissions
manual transmissions, EcoShift boasts increased effi-
additional cooling system
is quieter, and more environmentally friendly than
ciency and operating comfort. The pressure oil lubrica-
its predecessor. In contrast to other retarder systems,
tion with flat oil sump reduces gear resistance. The
the permanent brake force of the Intarder also has an
simple, smooth, and precise shifting provides for
effect when actuating the clutch and changing gears.
relaxed driving. Passengers and the environment profit
The brake force of the power version is 4 000 newton
in equal measure from the reduced noise emissions.
meters, while the Eco version produces 3 300 newton
As the first manual transmission series for buses and
meters. The Intarder is integrated into the EcoShift
coaches, the EcoShift transmission family can be
transmission and AS Tronic using a space-saving design
universally equipped with the Servoshift shift support
and both are perfectly matched together. The small
system.
number of interfaces means the transmission system
can be installed in the vehicle quickly and easily. The
electronic control unit allows for optimum integration
into the vehicle brake management system – including
cruise control function.
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TAG AXLE SYSTEMS
FOR CITY BUSES AND COACHES
ZF PLUS
A SMOOTH TRANSMISSION SERVICE LIFE
The purchase price of a transmission is not the only cost that needs calculating –
the financial resources required to maintain the unit over its service life also
have to be considered. The service package tailored to your fleet allows you to
reliably plan and benefit from significant cost advantages. Both service contract
options are available from the shipment date of the transmission up to the expiration date of the normal warranty and are both valid for a maximum of 5 or 15 years
respectively.
Functionality meets individuality – tag axles from ZF are unique thanks to their optimal spring characteristics and high steering precision. Weight and strength-optimized low-floor axles provide vehicle manufacturers with new, creative leeway for bus
and coach designs.
Protects tires and guarantees maneuverability –
LOW FLOOR EXTENDS RIGHT
even for XXL sizes
THROUGH INTO THE REAR
Besides the active steering model, the passive steering
■ Active or passive rear axle steering
version of the RL 75 A is also available as a tag axle
■ Considerable increase in roll-off, steering,
for longer buses. It is fitted with steering dampers and
and driving comfort
pneumatic locking cylinders. As an alternative, the
■ Improved vehicle handling
RL 82 EC independent front suspension can also be
■ Design allows low-floor design right through
used as a tag axle. The wheel heads on the tag axles
to vehicle rear
are identical to the wheel heads on both front axles.
■ Creates enough free space
Smart calculation – mobility at a fixed price
Repairs without cost risks
If operators have at least 20 ZF automatic transmissions
The ECP contract (ECP = Extended Coverage Program)
in their fleet, they can enter a LCC-smart contract.
is intended to cover repair cost risk and can be valid for
This covers all the costs of corrective maintenance and
one ZF transmission system. It covers the servicing and
servicing (life cycle costs) over a maximum period of
repair work carried out by the ZF Customer Service.
15 years or 2 million kilometers. The flat rate basically
ZF's contracting party pays a fixed price and the ZF ser-
includes all repairs and replacements of defective trans-
vice organization renders the service for the fleet own-
mission components and transmission overhaul at the
er's ZF transmissions for a period of five years or up to
ZF repair center.
1 million kilometers.
In addition, chassis integration is easy as both front
axles have identical installation dimensions.
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ON SITE – WORLDWIDE
OUR WIDE RANGE OF SERVICES
FROM A SINGLE SOURCE
ZF is there to serve its customers, always nearby with more than 700 service centers
around the globe when drivers, owners, or fleet operators of vehicles equipped with
ZF driveline technology need professional support.
This enables ZF to provide a tight network of highly qualified contacts close to international customers at all levels and in all regions.
As technology leader, ZF considers itself not only a manufacturer, but also a
reliable partner who supports you throughout the lifecycle of your vehicles and
applications. Wherever you may need us, ZF Services supports you with its
own comprehensive service network and the entire range of aftersales services
from a single source. Quickly, directly, reliably. Our strong quality products and
excellent services at a glance:
ZF is consistently expanding its global market presence.
In this context, key aspects here are market develop-
Both established market regions and new markets play
ment through adapting products to specific market
very important roles. Activities outside Europe in parti-
requirements, and best-cost-country considerations
cular will become increasingly important in the future.
which play a decisive role in production and procure-
This applies not only to the established markets in
ment. ZF supports the international expansion of
North and South America, but especially to the Asia-
established customers while also adding partners from
Pacific region and the new markets in Eastern Europe
new market regions to its customer portfolio.
and India.
Spare parts business
Trade with driveline, chassis, and steering technology
ZF exchange units get your top performer quickly back
under the established SACHS, LEMFÖRDER, BOGE,
onto the road. Minimum downtimes, maximum know-
ZF Lenksysteme, and ZF Parts product brands with the
how – that is what you can rely on.
highest product coverage and in OE quality. Just-in-time
delivery thanks to 72 logistics locations. After all,
Service for workshops
nothing is better than the original.
Extensive services for workshops, with a special focus
on technical information and personal advice. Demand-
Maintenance and repairs
driven training courses and competent marketing sup-
Preventive overhaul, maintenance, conversion, and
port. This guarantees your competent image towards
retrofitting for more efficiency, comfort, and safety.
the customer.
Diagnosis and repair for ZF and non-ZF products.
ZF Services keeps your vehicles running smoothly.
Technical information
Informative documents such as catalogs, diagnosis,
Remanufacturing
repair and mounting instructions, trade publications,
Industrial remanufacturing of ZF and non-ZF products
technical tips, as well as an attractive training program
such as clutches, torque converters, steering systems,
relating to all ZF products. The combination of product
and transmissions. Efficient core return of EOL parts.
and consulting quality is what matters.
Inspection processes and quality requirements as
in volume production. Technical upgrades and
Non-automotive service
ZF warranty included. For eco-friendly mobility.
The skills of ZF Services are also in high demand in the
non-automotive sector, e.g. in the fields of wind power,
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Service for fleet owners
marine and rail applications. Technical know-how of
Individual service packages including LCC contracts,
ZF and non-ZF products, prioritization of quality and
innovative diagnosis systems, established training
flexibility, as well as a global service network as a basis
courses and consultancy for more efficiency.
for highest customer satisfaction.
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EN 0000 762 153 – 2014
ZF Friedrichshafen AG
Axle & Transmission Systems for Buses & Coaches
88038 Friedrichshafen
Germany
Phone+49 7541 77-0
www.zf.com/buses
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