ahlmann AS 150 User manual

Ahlmann Baumaschinen GmbH Am Friedrichsbrunnen 2 D-24782 Büdelsdorf
Telefon [phone] Internet: www.ahlmann-baumaschinen.de
Telefax 04331/351404 E-Mail: [email protected]
AS 150
OPERATING INSTRUCTIONS
SWING SHOVEL LOADER
1000995A GB

S150/S151/S152/Z152 I
Table of Contents
Introduction
Preface
Ahlmann swing loaders, articulated loaders and front loaders are part of Ahlmann selection of heavy construction
equipment, and design for a wide range of uses.
Years of experience in manufacturing earth-moving equipment and various auxilliary tools, modern construction
and manufacturing approaches, careful testing and an stringent quality control assure the reliability of your
Ahlmann wheel loader.
Scope of documentation supplied by manufacturer:
- Equipment Operating Manual
- Engine Operating Manual
- Parts List Equipment
- Parts List Engine
- EU Statement of Conformity
Operating Manual
The operating manual contains information required for safe operations and maintenance.
The "Maintenance" section contains details of all service tasks and functional checks, which must be performed
by trained staff.
These do not include major servicing tasks which must be performed by technicians specially trained and
authorized by the manufacturer. This specifically includes equipment subject to road safety, and safety at work
regulations.
The manufacturer reserves the right to alter construction details, which may lead to some deviations between your
actual equipment and the figures shown in this manual, but will not affect the accuracy of the contents.
Using the Manual
Terminology
- The terms "left" or "right" refer to the equipment as viewed from the driver´s cab facing in direction of travel.
- Optional
means: Not included as standard equipment.
Note on Figures
- (3-35)
means: Chapter 3, Fig. 35
- (3-35/1)
means: Chapter 3, Fig. 35, Position 1
- (3-35/arrow)
means: Chapter 3, Fig. 35,

S150/S151/S152/Z152II
Table of Contents
Abbreviations used
SW = Safety at work regulations
RS = Road safety regulations
Version: 02.2007
Printed: 02.2007

S150/S151/S152/Z152 III
Table of Contents
Table of Contents
1 Basic Safety Notes
1.1 Warnings and symbols ............................................................................................................ 1 - 2
1.2 Appropriate use ....................................................................................................................... 1 - 2
1.3 Administrative tasks ................................................................................................................ 1 - 2
1.4 Selecting and training staff ...................................................................................................... 1 - 3
1.5 Safety notes in various operating modes.................................................................................. 1 - 4
1.5.1 Normal operations .................................................................................................................... 1 - 4
1.5.2 Special tasks applicable to using the equipment
and troubleshooting; waste disposal ........................................................................................ 1 - 7
1.6 Note on specific dangers ......................................................................................................... 1 - 9
1.6.1 Electrical power ....................................................................................................................... 1 - 9
1.6.2 Hydraulics ............................................................................................................................... 1 - 10
1.6.3 Noise levels ............................................................................................................................. 1 - 10
1.6.4 Oils, greases and other chemical substances ......................................................................... 1 - 11
1.6.5 Gas, dust, steam, smoke ........................................................................................................ 1- 11
1.7 Transporting and towing; re-commissioning ............................................................................. 1 - 11
1.8 Safety notes for the owner or responsible persons................................................................... 1 - 12
1.8.1 Administrative tasks ................................................................................................................ 1 - 12
1.8.2 Selecting and training staff; basic requirements....................................................................... 1 - 12
2 Signs
3 Anti-Theft Mechanism
3.1 Identification marks on the equipment...................................................................................... 3 -2
3.2 Parking the equipment ............................................................................................................. 3 - 2
3.3 Transponder immobilizer .......................................................................................................... 3 - 3
4 Description
4.1 Overview ................................................................................................................................... 4 - 2
4.2 Swing drive and undercarriage ................................................................................................. 4 - 3
4.3 Schwimmstellung .................................................................................................................... 4 - 3
4.4 Bucket position indicator ......................................................................................................... 4 - 3
4.5 Accoustic warning ................................................................................................................... 4 - 3
4.6 Air-Conditioning ....................................................................................................................... 4 - 4
4.7 Bucket cushioning ................................................................................................................... 4 - 5
4.8 Transmission type "20 km/h" and "25 km/h" ........................................................................... 4 - 5
4.9 Changing wheels ..................................................................................................................... 4 - 5
4.10 Control elements ..................................................................................................................... 4 - 7
4.11 Dashboard ............................................................................................................................... 4- 8
5 Operations
5.1 Checks before you start ........................................................................................................... 5 - 2
5.2 Getting started ......................................................................................................................... 5 - 2
5.2.1 Starting the diesel engine ........................................................................................................ 5 - 2
5.2.2 Winter running ......................................................................................................................... 5 - 3
5.2.2.1 Fuel ......................................................................................................................................... 5 - 3
5.2.2.2 Engine oil change .................................................................................................................... 5 - 4
5.2.2.3 Hydraulic oil change ................................................................................................................ 5 - 4
5.2.2.4 Anti-frost for screen washer system......................................................................................... 5 - 4
5.2.3 Driving on public roads ............................................................................................................. 5 - 4
5.2.3.1 Transporting an excavator ........................................................................................................ 5 - 5
5.2.4 Working with the equipment .................................................................................................... 5 -6
5.2.4.1 Slow-runner type "20 km/h" and "25 km/h" .............................................................................. 5 - 6
5.2.4.2 Fast-runner type "40 km/h" ......................................................................................................5 - 6

S150/S151/S152/Z152IV
Table of Contents
5.2.5 Heating and ventilation system/Air conditioning unit(SA)......................................................... 5 - 8
5.2.5.1 Blower output ........................................................................................................................... 5 - 8
5.2.5.2 Turning on the heating ............................................................................................................. 5 - 8
5.2.5.3 Turning on the air conditioning unit (SA) ................................................................................. 5 - 8
5.2.5.4 Setting the temperature ........................................................................................................... 5 - 8
5.3 De-commissioning ................................................................................................................... 5 - 9
5.3.1 Switching off the equipment .................................................................................................... 5 - 9
5.3.2 Switching off the diesel engine ................................................................................................ 5 - 9
5.3.3 Switching of the Heating and ventilation system/Air conditioning unit(SA) .............................. 5 - 9
5.3.4 Leaving the vehicle .................................................................................................................. 5 - 9
5.4 Adjusting the driver seat .......................................................................................................... 5 - 10
5.4.1 Isri seat ................................................................................................................................... 5 - 10
5.4.2 Grammer seat .......................................................................................................................... 5 - 10
5.5 Changing the steering mode .................................................................................................... 5 - 12
6 Auxilliary Attachments
6.1 Attaching and detaching auxilliary devices without hydraulics ................................................. 6 - 2
6.1.1 Standard/Lightwork bucket ...................................................................................................... 6 - 2
6.1.2 Fork-lift attachment .................................................................................................................. 6 - 3
6.1.3 Lifting hook .............................................................................................................................. 6 - 4
6.2 Attaching and detaching auxilliary devices with hydraulics...................................................... 6 - 4
6.2.1 Multi-purpose bucket ............................................................................................................... 6 - 4
6.2.2 Front-end excavator ................................................................................................................ 6 - 7
6.2.2.1 Changing the backhoe ............................................................................................................ 6 - 8
6.3 Using other attachments .......................................................................................................... 6 - 8
7 Rescue, Towing, Lashing, Lifting by crane
7.1 Rescue, towing, lashing ........................................................................................................... 7 - 2
7.1.1 Rescue/towing the swivel loader in case of engine or transmission failure .............................. 7 - 2
7.1.1.1 Towing the swivel loader in case of engine failure ................................................................... 7 - 2
7.1.1.2 Towing the swivel loader in case of transmission failure .......................................................... 7 - 5
7.2 Lifting by crane ....................................................................................................................... 7 - 7
8 Maintenance
8 Maintenance plan type 40 km/h ............................................................................................... 8 - 1
8 Maintenance plan types 20 km/h and 25 km/h ......................................................................... 8 - 2
8.1 Maintenance notes .................................................................................................................. 8 - 3
8.2 Maintenance tasks ................................................................................................................... 8 - 4
8.2.1 Checking the engine oil level ................................................................................................... 8 - 4
8.2.2 Checking the axle oil level ........................................................................................................ 8 - 4
8.2.2.1 Rear axle ................................................................................................................................. 8 - 4
8.2.2.2 Planetary gear ......................................................................................................................... 8 - 4
8.2.2.3 Front axle................................................................................................................................. 8 - 5
8.2.3 Checking oil level in power take-off drive » slow-runners 20 km/h and 25 km/h « ................... 8 - 5
8.2.4 Checking oil level in power take-off drive » fast-runners 40 km/h « ....................................... 8 - 6
8.2.5 Checking oil level hydraulic oil container .................................................................................8 - 6
8.2.6 Changing the engine oil ........................................................................................................... 8 - 7
8.2.7 Changing the axle oil ............................................................................................................... 8 - 7
8.2.7.1 Rear axle ................................................................................................................................. 8 - 7
8.2.7.2 Planetary gear ......................................................................................................................... 8 - 8
8.2.7.3 Front axle................................................................................................................................. 8 - 9
8.2.8 Oil change power take-off drive » slow-runners 20 km/h and 25 km/h « ................................. 8 - 10
8.2.9 Oil change power take-off drive » fast-runners 40 km/h « ...................................................... 8 - 10
8.2.10 Oil change hydraulics system .................................................................................................. 8 - 11
8.2.11 Changing suction return filter media ........................................................................................ 8 - 12
8.2.12 Changing/Maintaining the air filter ........................................................................................... 8 - 13
8.2.13 Changing the safety cartridge ................................................................................................. 8 - 13
8.2.14 Changing the fuel filter ............................................................................................................ 8 - 14
8.2.15 Changing the starter battery .................................................................................................... 8 - 14
8.2.16 Changing/Maintaining the fresh air filter .................................................................................. 8 - 15
8.2.17 Checking/adjusting the service brake ......................................................................................8 - 15
8.3 Greasing points ....................................................................................................................... 8 - 16

S150/S151/S152/Z152 V
Table of Contents
8.3.1 Rear axle clevis pin .................................................................................................................. 8 - 16
8.3.2 Rear axle ................................................................................................................................. 8 - 16
8.3.3 Front axle ................................................................................................................................ 8 - 16
8.3.4 Swing roller bearing ................................................................................................................. 8 - 17
8.3.5 Bucket motor ........................................................................................................................... 8 - 17
8.3.6 Cab doors ................................................................................................................................ 8 - 17
8.3.7 Engine hood ............................................................................................................................ 8 - 18
8.4 Oiling points ............................................................................................................................ 8 - 18
8.4.1 Support valve switchgear .......................................................................................................... 8 - 18
9 Malfunctions, Causes and Troubleshooting
10 Wiring diagrams
10.1 Elektrical wiring diagram ........................................................................................................ 10 - 1
10.2 Hydraulic diagram .................................................................................................................. 10 - 4
10.2.1 Hydraulik-Schaltplan AS 150 (Bolzenverriegelung) Ausführung "20 km/h" und "25 km/h" ...... 10 - 4
10.2.2 Hydraulik-Schaltplan AS 150 (Bolzenverriegelung) Ausführung "40 km/h" ............................. 10 - 5
10.2.3 Hydraulik-Schaltplan AS 150 (Klauenverriegelung) Ausführung "20 km/h" ............................. 10 - 6
10.2.4 Hydraulik-Schaltplan AS 150 (Klauenverriegelung) Ausführung "40 km/h" ............................. 10 - 7
11 Technical Specifications (Equipment)
11.1 Equipment ............................................................................................................................. 11 - 2
11.2 Engine ................................................................................................................................... 11 - 2
11.3 Starter.................................................................................................................................... 11 - 2
11.4 Alternator ............................................................................................................................... 11 - 2
11.5 Hydrostatic drive .................................................................................................................... 11 - 2
11.6 Axle loads ............................................................................................................................. 11 - 3
11.7 Tires ...................................................................................................................................... 11 - 3
11.8 Steering ................................................................................................................................. 11 - 3
11.9 Brakes ................................................................................................................................... 11 - 3
11.10 Electrical equipment .............................................................................................................. 11 - 3
11.11 Hydraulic equipment .............................................................................................................. 11 - 4
11.11.1 Work hydraulic system .......................................................................................................... 11 - 4
11.11.2 Loader hydraulic system ........................................................................................................ 11 - 4
11.11.3 Abstützanlage ....................................................................................................................... 11 - 4
11.12 Fuel supply system ............................................................................................................... 11 - 4
11.13 Heating and ventilation system (driver´s cab) ......................................................................... 11 - 4
11.14 Suction return filter (hydraulics) ............................................................................................. 11 - 4
11.15 Elektrical contamination display ............................................................................................ 11 - 4
11.16 Oil cooler (combi cooler) with thermostatic valve control ........................................................ 11 - 5
11.17 Noise levels ........................................................................................................................... 11 - 5
11.18 Options .................................................................................................................................. 11 - 5
11.18.1 Air conditioning (driver´s cab) .................................................................................................11 - 5
12 Technical Specifications (Attachments)
12.1 Buckets ................................................................................................................................. 12 - 2
12.2 Fork-lift attachment ................................................................................................................ 12 - 4
12.3 Front loader ........................................................................................................................... 12 - 6
12.4 Lifting hook ............................................................................................................................ 12 - 8
13 Additional Equipment, Changes ,
Sample "Notes on Testing Wheel Loaders"
13.1 Additional equipment ............................................................................................................. 13 - 2
13.1.1 Description ............................................................................................................................ 13 - 2
13.1.1.1 Pipe burst protection.............................................................................................................. 13 - 2
13.1.1.2 Lift range limiter ..................................................................................................................... 13 - 2
13.1.1.3 Service interval warning display ............................................................................................. 13 -2
13.2 Changes ................................................................................................................................13 - 3

Safety regulations

S150/S151/S152/Z1521-2
1 Safety regulations
1 Fundamental safety
instruction
1.1 Warnings and symbols
In this operation manual the following designations or
symbols are used for important information.
NOTE
Special information for the economical use of the
machine.
CAUTION
Special information for necessities and prohibi-
tions for avoiding damages.
DANGER
Information or necessities and prohibitions for
prevention of damage to persons or extensive
damage to goods.
1.2 Use of the loader as authorized
1.2.1 This machine was designed according to the
state of the art and recognized safety rules. Nevertheless
the use of the machine may cause danger for the user or
third parties or impairments to the machine or other real
values.
1.2.2 The machine and attachments may only be used
in a technical non-objectionable condition, taking all safety
regulations especially with regard to the operating manuals
(machine and engine). In particular defects which could
have a detrimental effect on the safety of the machine
should be eliminated immediately.
1.2.3 The machine is determined exclusively for the
purposes described in this operating manual. Any other
utilization is not permitted. The manufacturer is not liable
for any damage caused in this connection. The user solely
carries the risk.
The authorized use of the machine also requires the
observation of the operating manual (machine and engine)
as well as the observation of the inspection and mainte-
nance conditions.
1.3 Organizational measures
1.3.1 The operating manual (machine and engine) must
be available at all times and at the site where the machine
is in operating condition.
i

S150/S151/S152/Z152 1-3
Safety regulations 1
1.3.2 In addition to the operating manual (machine and
engine) the general applicable and other binding regula-
tions for the prevention of accidents (especially the safety
regulations of the German Trade Association - VBG 40) as
well as the regulations for environment protection must be
observed and the personnel must be accordingly instructed.
Traffic regulations must also be observed.
1.3.3 The personnel in charge of working with the
machine must read the operating manual (machine and
engine) before start of work, especially the chapter
concerning safety precautions.
This also applies to personnel working occasionally with
the machine, e.g. during maintenance work.
1.3.4 The driver must wear a seat belt during operation.
1.3.5 Personnel working with the machine must not
wear long flowing hair, loose clothing or jewelry including
rings as this could cause injuries by getting caught up or
pulled in by the machine.
1.3.6 All safety and danger plates on the machine must
be observed.
1.3.7 All safety and danger plates must be attached to
the machine and must be kept in legible condition.
1.3.8 In case of modifications to the machine, especially
in case of damages or changes in the operating behavior
of the machine which could influence the safety of the
machine, stop the machine immediately and inform the
competent person in charge about the incident.
1.3.9 Without the manufacturer’s consent, do not make
any modifications or conversions to the machine which
could affect safety. This also applies to the installation and
adjustment of safety devices, valves and welding work to
supporting parts.
1.3.10 Check hydraulic system, especially hydraulic
pipes, at regular intervals for defects. Immediately eliminate
any defects found.
1.3.11 The prescribed inspection periods set down in the
operating manual (machine and engine) and the mainte-
nance plan must be observed.
1.4 Selection of personnel and necessary
qualifications
Fundamental obligations
1.4.1 The machine may only be driven and maintained
by personnel selected by the employer for this purpose.

S150/S151/S152/Z1521-4
1 Safety regulations
These persons must:
- have attained the age of 18 years,
- be physically and intellectually suitable,
- have been instructed in the operation or maintenance of
the machine and must have demonstrated their ability to
their employer,
- must be expected to carry out the work conveyed to them
in diligent manner.
1.4.2 Electrical work on the machine may only be
carried out by a qualified electrician or persons supervised
by a qualified electrician according to the electrotechnical
regulations.
1.4.3 Only qualified specialists may carry out work on
the transmission mechanism and to the hydraulic system.
1.4.4 Only personnel with special experience and the
necessary know-how are permitted to carry out work on the
hydraulic system.
1.5 Safety Information for Certain
Operating Phases
1.5.1 Normal Operation
1.5.1.1 Other persons must not be transported!
1.5.1.2 Start and drive the machine from the driver’s seat
only!
1.5.1.3 Duringstarting andswitching-off operation observe
the control lamps according to the operation manual
(machine and engine)!
1.5.1.4 Before commencing work/driving check brakes,
steering, signal lights and lights for their functioning!
1.5.1.5 Before moving the machine always check that
the attachments are safely stowed so that no accident
may occur!
1.5.1.6 Before commencing work make yourself familiar
with the working environment. This means observing
obstacles on the working site, quality and resistance of the
soil ground, undertaking the necessary protection precau-
tions between the building site and the public traffic.
1.5.1.7 Before starting the machine make sure that no
person is endangered by the machine!
1.5.1.8 Take measures so that the machine can be
operated in a safe and functional manner. The machine
may only be operated when all safety devices, e. g.
detachable safety devices, sound-absorption, exist and
function.

S150/S151/S152/Z152 1-5
Safety regulations 1
1.5.1.9 Avoid any work operation which appears to be
dangerous!
1.5.1.10 Persons must not be carried in the working
equipment, e.g.in the attachments!
1.5.1.11 The operator may only carry out work with the
machine when no persons are in the danger zone.
The danger zone means that area near the machine where
persons may be injured
- by work-induced movements of the machine,
- by work attachments and devices,
- by loads swiveling out,
- by loads falling down,
- by attachments falling down from the machine.
1.5.1.12 In case of danger to persons the operator must
give appropriate warning signs. It may be necessary to
stop work.
1.5.1.13 In case of functional defects stop machine imme-
diately and safeguard it. Eliminate defects immediately!
1.5.1.14 Check machine at least once every shift for
external visible damage and defects with regard to any
changes and to the operating behavior of the engine.
Report any defects or changes immediately to the person
in charge. If necessary stop the machine immediately and
safeguard it.
1.5.1.15 The driver may only slew the attachments over-
head driving, operating and working areas if these areas are
suitably safeguarded by protective roofing. These protection
roofs must offer appropriate safety against loads and
goods falling down. In case of doubt, it should be assumed
that they are not protective roofs.
1.5.1.16 When driving, the attachment is to be kept as
close to the ground as possible.
1.5.1.17 Please observe the applicable traffic regulations
when driving on public roads, paths or open spaces. The
machine must be brought into road-worthy condition in
beforehand.
1.5.1.18 In general, switch on lights in poor visibility and
during darkness.
1.5.1.19 If lights of the machine are not adequate for the
safe execution of certain work, additional lighting must be
provided on the working site, especially at dumping points.
1.5.1.20 Should the driver’s sight of his driving and working
area be restricted due to work-induced influences, he must
be given guidance or he must safeguard the working area
by a firm barrier.

S150/S151/S152/Z1521-6
1 Safety regulations
1.5.1.21 The person giving guidance must be a reliable
person and must be informed about his tasks before
commencement of the work.
1.5.1.22 The driver and guide must agree on signals for
communication. These signals may only be given by the
driver and guide.
1.5.1.23 The guide must be easily recognizable e.g. by
wearing warning clothing and must always be in the driver’s
field of vision.
1.5.1.24 When passing subways, bridges, tunnels,
electrical over-head lines make sure that there is adequate
clearance!
1.5.1.25 Keep good clearance when working at the edge
of quarries, pits, rubbish dumps and embankments to
eliminate any danger of the machine plunging down. The
contractor or his deputy must stipulate the distance from
the edge taking the soil bearing capacity into considera-
tion.
1.5.1.26 The machine may only be used at stationary
dumping areas when firmly integrated installation are
provided to prevent the machine from running or sliding
down.
1.5.1.27 Avoid such work which could have detrimental
effect on the stability of the machine.
The stability can be detrimented by:
- overloading,
- too soft ground,
- abrupt acceleration or deceleration of driving movement
or working movement,
- reversing out of high driving speed,
- working on slopes,
- driving too quickly round sharp bends,
- driving the machine on rough terrain with the bucket arm
swung.
1.5.1.28 Do not drive along slopes in traverse direction.
Always carry working equipment and loads near the
ground, especially when driving down slopes. Sudden
cornering is forbidden!
1.5.1.29 On steep inclines and gradients, the load is to be
carried on the uphill side.
1.5.1.30 Before the slope, reduce the speed and always
adapt to the local conditions! Always adapt the speed of
the machine to the environmental conditions when driving
down slopes! Never change into low gear when driving on
slopes but before entering the slope!
1.5.1.31 Reversing over a longer period must be avoided!
1.5.1.32 When leaving the machine always safeguard the
machine to prevent it from unintentionally rolling away or
prevent non-authorized persons from using it!
1.5.1.33 The driver must not leave the machine if the
attachments are not lowered or safeguarded.

S150/S151/S152/Z152 1-7
Safety regulations 1
21
1.5.1.34 During work-brakes and after work hours the
driver should endeavor to leave the machine on good
bearing soil and if possible on level ground and safeguard
the machine to prevent it from unintentionally rolling away.
1.5.2 Special work within the exploitation
of the machine and elimination of defects
during process or work; disposal
1.5.2.1 The prescribed dates for adjustment work, mainte-
nance work and inspections laid down in the operating
manual (machine and engine) must be strictly observed.
This also applies to details regarding the interchanging of
parts/ part equipment. This work may only be executed by
skilled personnel.
1.5.2.2 For all work concerning the operation, conversion
or adjustment of the machine and its safety devices as well
as inspection, maintenance and repair work please observe
the switching and stopping operation in accordance with
the operating manual (machine and engine) as well as the
related instructions for maintenance work.
1.5.2.3 The engine must be switched off before mainte-
nance or repair work is carried out.
1.5.2.4 The stability of the machine or the attachments
must be guaranteed at all times during maintenance and
repair work.
1.5.2.5 Maintenance and repair work may only be carried
out when the attachment is set down on the ground or
supported or when equivalent measures against un-
intentional movement were taken.
During maintenance and repair work under the bucket arm:
- the bucket arm must be mechanically propped up,
e.g. by inserting the bucket arm support (option) (1-1/
arrow).
- the hand levers for the hydraulic loader (1-2/1) and
auxiliary functions (1-2/2) must be secured.
- the swing mechanism must be blocked. Remove the
blocking wedge (1-3/arrow) out of the mounting, switch to
swing blocking (1-4/arrow), and secure with spring pin.
1.5.2.6 If necessary, protect the maintenance area on a
large scale.
1.5.2.7 The machine must be protected from un-
intentionally starting after it was switched off for mainte-
nance and repair work:
- remove the ignition key
- attach warning sign at battery main switch.
This applies especially to works to the electrical equipment.
1.5.2.8 Individual pieces and large assemblies must be
carefully secured to hoisting equipment when being
substituted to avoid any damage. Only suitable and
technical sound hoisting equipment may be used as well
as crane equipment with adequate payload. Do not stand
or work underneath suspended loads!
Figure 1-1
Figure 1-3
Figure 1-2

S150/S151/S152/Z1521-8
1 Safety regulations
1.5.2.9 Only experienced personnel should be entrusted
with the securing of loads!
Loads must be secured so that they cannot slip or fall
down.
1.5.2.10 Attached loads may only be moved with the
machine when the road is graded.
1.5.2.11 When working with hoisting equipment/elevators
the slingers may only work with the approval of the driver
and from the side of the boom. The driver may only give his
consent if the machine is standing still and the working
attachment is not being moved.
1.5.2.12 Persons assisting with the guidance of loads and
slingers may only stay in visual or communication reach of
the driver.
1.5.2.13 The operator must move the load as close to the
ground as possible and avoid to swivel the load.
1.5.2.14 The operator may not move the load over the
heads of persons.
1.5.2.15 In the case of erection work having to be carried
out above normal human height, suitable safety ascent
devices and working platforms must be used. Do not use
engine parts as climbing and descending facilities. Use
safety harnesses when working at very great heights.
All handles, steps, railings, podests, platforms, ladders
must be kept free from dirt and ice.
1.5.2.16 Clean the machine, especially connections and
screw connections before commencement of maintenance
work and make sure that the machine is free from oil, fuel
oil or dirt. Do not use aggressive detergents. Use lintless
cleaning rags!
1.5.2.17 Before cleaning the machine with water or steam
jet (high pressure cleaning unit) or with detergent protect
all areas where water/ steam/ detergent may penetrate and
affect the functions or safety of the machine by a suitable
cover or by applying tape. In particular, such parts as
enginecomponents, e.g. injectionpump, generator governor,
starter are very delicate.
1.5.2.18 After cleaning completely remove all protection
covering and tape.
1.5.2.19 After cleaning check all pipelines for fuel, engine
oil and hydraulic oil for leakages, loose connections,
abrased parts and damages. Eliminate defects imme-
diately.
1.5.2.20 Always fasten screw connections after comple-
tion of maintenance and repair work.
1.5.2.21 Should it be necessary to dismantle safety
devices during mounting, maintenance or repair work,
these safety devices must be re-installed and checked
carefully after completed maintenance and repair work.
Figure 1-4

S150/S151/S152/Z152 1-9
Safety regulations 1
1.5.2.22 Make sure that fuel, accessory material and
interchanged parts are safely disposed of with no danger
to the environment.
1.5.2.23 The machine should be checked by a specialist
before commissioning. In addition, it should be checked
after essential modifications before it returns to service.
1.5.2.24 The machine must be checked by a specialist
once a year. Furthermore, a specialist must check the
machine whenever necessary because of operating
conditions.
1.5.2.25 The test results must be recorded and kept in the
archives at least until the following control date.
1.6 Instructions regarding special
categories of danger
1.6.1 Electrical energy
1.6.1.1 Only use original fuses (mandatory current).
Immediately switch off machine in case of breakdown of
electrical supply.
1.6.1.2 When working near overhead lines and overhead
wires, a safety clearance must be kept between the
machine and its working equipment in order to prevent
sparking over. The safety clearance depends on the nominal
voltage of the overhead/wire line. This also applies to the
distance between the lines and to the attachments and
slung loads.
The following safety clearance must be observed, to meet
the above mentioned requirement:
Nominal voltage Safety clearance
(kilovolt) (meter)
up to 1 kV 1,0 m
above 1 kV up to 110 kV 3,0 m
above 110 kV up to 220 kV 4,0 m
above 220 kV up to 380 kV 5,0 m
unknown nominal voltage 5,0 m
When approaching overhead lines all working movements
of the machine must be taken into consideration, e.g. the
position of jibs, the swinging of ropes and the dimensions
of slung loads.
In addition, attention must be paid to any roughness of soil
which could cause an inclined position of the machine thus
getting it closer to the overhead line. The fact that overhead
lines may swing out during windy weather and may reduce
the distance must also be taken into consideration.

S150/S151/S152/Z1521-10
1 Safety regulations
1.6.1.3 In the case of sparking over any work or move-
ment must stop. Instructions to be followed:
bring the machine out of the danger area by lifting or
lowering the attachments or by swiveling away or driving
the machine out of the area. If this is not possible then the
following rules must be observed:
- do not leave the driver’s cabin!
- Warn persons standing near the machine not to approach
or touch the machine!
- Give immediate instructions to have the power cut off!
- Leave the machine only when it is sure that the electricity
in the damaged/contacted power line is switched off so
that the line is dead!
1.6.1.4 Work on the electrical system or on the operating
system may only be carried out by a skilled electrician or
by personnel instructed or supervised by such trained
electrician according to electrotechnical regulations.
1.6.1.5 The electrical installation of a machine must be
reviewed/inspected at regular intervals. Any defects, e.g.
loose connections or scorched cabling, must be eliminated
immediately.
1.6.1.6 Always de-energise machine or system parts to
be inspected, maintained or repaired by disconnecting the
battery main switch.
1.6.1.7 Always disconnect the battery main switch be-
fore starting any electrical welding on the machine.
1.6.2 Hydraulic systems
1.6.2.1 Only experts may carry out work on the hydraulic
system.
1.6.2.2 All pipelines, hoses and screw connections must
be checked regularly for leakages and visible damages.
Immediately eliminate such defects. Spurting hydraulic oil
may cause injuries and fire.
1.6.2.3 Those hydraulic system segments which are to
be opened must be made free of pressure before
commencement of the repair work according to the
assembly group description.
1.6.2.4 The hydraulic pipelines must be correctly laid and
connected. Do not get the connections mixed up. The
spare parts must be in an accordance with the technical
requirements stipulated by the manufacturer. This is, of
course, guaranteed when original spare parts are ordered.
1.6.2.5 Never change factory settings for hydraulic com-
ponents (such as the maximum permissible speed for the
axial piston engine). Changing such settings will cause the
warranty to become void.
1.6.3 Noise
Sound protection equipment must be in protective position
during operation of the machine.

S150/S151/S152/Z152 1-11
Safety regulations 1
1.6.4 Oil, grease and other chemical
substances
1.6.4.1 The relevant safety regulations must be observed
when using oil, grease or other chemical substances.
1.6.4.2 Caution when working with hot fuel and other
accessory material (danger of burning and scalding).
1.6.4.3 Caution when working with brake fluid and battery
acid.
TOXIC AND CAUSTIC!
1.6.4.4 Be careful when working with fuel.
FIRE HAZARD!
- Before refuel, switch off engine and remove ignition key.
- Do not refuel in a closed operating area.
- Never refuel near open fire or sparks.
- Do not smoke during refueling.
- Immediately wipe up spilled fuel.
- Keep machine free of fuel, oil and grease.
1.6.5 Gas, dust, steam, smoke
1.6.5.1 The machine may only be started and run in
closed operating areas where there is sufficient ventilation.
The regulations for the respective working site must be
strictly observed.
1.6.5.2 Only carry out welding, burning and grinding work
on the machine when this is explicitly approved. Otherwise
danger of fire and explosion!
1.6.5.3 Before carrying out welding, burning and grinding
work clean the machine and its vicinity from combustibles
and make sure that the room is adequately ventilated.
Explosion hazard!
1.7 Transport and towing, restart
1.7.1 The machine may only be towed if the brakes and
steering function.
1.7.2 Towing may be carried out only by means of an
adequately dimensioned towing bar in connection with
towing devices.
1.7.3 When towing drive slowly. Persons must not
remain near the towing bar.

S150/S151/S152/Z1521-12
1 Safety regulations
1.7.4 When the machine is loaded and transported the
necessary auxiliary equipment must be fitted to prevent
any unintended movement. The tires must be kept clean of
mud, snow and ice so that the machine can drive on the
ramp without danger of sliding.
1.7.5 Restart the machine strictly observing the
regulations of the operating manual.
1.8 Safety information for the contractor
or the contractor’s authorized personnel
1.8.1 Organizational measures
1.8.1.1 We would like to emphasize that parts and
accessories that are not supplied by us are also not tested
and approved by us. Installation and/or use of such products
can thus negatively affect the constructional qualities of
your loader and thereby reduce the active and passive
driving stability. The manufacturer cannot be held respon-
sible for damage that results from the use of non-original
parts and accessories.
1.8.1.2 Inform about the location/use of fire extinguishers
(1-5/arrow) and first-aid kit (on the maintenance plate
behind the driver's seat)!
1.8.2 Selection of personnel, qualifications;
additional duties
1.8.2.1 Only reliable persons are allowed to work on/with
the machine. The minimum legal age must be observed.
1.8.2.2 Only employ trained or instructed personnel.
Clearly define the competencies of the personnel regarding
operation, installation, maintenance and repair work.
Ensure that only authorized personnel may work on/ with
the machine.
1.8.2.3 Determine the driver’s responsibility regarding
traffic regulations. Authorize him to refuse instructions
given by third parties when these instructions are detrimental
to the safety of the driver and the machine.
1.8.2.4 Personnel that are being trained are permitted to
operate the loader only if they are under constant super-
vision of an experienced person authorized by the employer!
Figure 1-5

Signs

S150/S151/S152/Z1522-2
2 Signs
27
1
6
16 21 22
8
14
10
20
19
11
15
11
1
10
10
10
12
11
11
12
13
40
13
40
24
25
79a
AS 150
AS 150
26
AHLMANN-Baumaschinen GmbH
ROPS-Typ:
Fzg.-Typ:
zul. Ges. Gew.:
ROPS-Prüfung nach DIN iso 3471
TIM SA
B.P. No. 49
59380 BERGUES
FRANCE
17
ACHTUNG!
Bei Fahrten auf öffentlichen
Straßen ist nur die Hinter-
radlenkung zu benutzen!
2
ACHTUNG!
Lenkung nur bei laufen-
dem Motor betriebsfähig!
3
ACHTUNG!
Das Verteilergetriebe darf nur
im Stillstand geschaltet werden.
Beim Gangwechsel die Be-
triebsbremse betätigen und
den Fahrtrichtungsschalter in
"0"-Stellung schalten.
4
ACHTUNG!
Beim Betrieb der Hubwerks-
federung ist die Rohrbruch-
sicherung der Hubzylinder
außer Funktion.
Bei angebautem Staplervor-
satz oder Lasthaken darf die
Hubwerksfederung nicht ein-
geschaltet werden.
5
17.5 - 25
17.5 R 25
550/65 R 25 2.2 2.2 bar
3,0 3,0 bar
9b
23
Bau-
Bau-
jahr
jahr
kW
kW
Fahrzeug Identifi-
Fahrzeug Identifi-
zierungs Nr. (FIN)
zierungs Nr. (FIN)
Motor-
Motor-
leistung:
leistung:
Typ/
Typ/
Ausf.
Ausf.
zul. Achslast hinten
zul. Achslast hinten
zul. Achslast vorn
zul. Achslast vorn
zul. Gesamtgewicht
zul. Gesamtgewicht
Betriebserlaubnis Nr.
Betriebserlaubnis Nr.
2-
2-
1-
1-
Baumaschinen GmbH
Baumaschinen GmbH
D-24782 B
D-24782 B
üdelsdorf
delsdorf
kg
kg
kg
kg
kg
kg
18
2 1
ATTENTION!
Steering is only available
while the engine is running!
3
ATTENTION!
The transfer gear shift can only
be operated while the vehicle is
stationary. When changing gear,
apply the brakes and put the gear
selector in neutral, "0".
4
ATTENTION!
The burst pipe protection
mechanism for the lifting
cylinder is disabled when
bucket cushioning is enabled.
You must disengage the buk-
ket cushioning mechanism
before fitting a fork-lift or
lifting hook.
5
ATTENTION!
Only the rear-wheel steering
may be used for driving on
public roads!
2