Operator’s Manual
Wheel Loader WL 50
www.wackerneuson.com
December 08 Edition
You have opted for a Wacker Neuson loader – thank you very much for putting your trust in us.
Your Wacker Neuson loader is a powerful product with robust technology and a wide range of applications to aid you in
your day-to-day work. In order to familiarize yourself with your loader in a quick, comprehensive manner, please read
this Operator’s Manual attentively.
In addition to the information regarding operation, this Operator’s Manual also contains important maintenance and operating instructions for conserving the value of your loader. Furthermore, we will show you how to operate your loader in
an environmentally sound manner.
Should you have any questions or problems relating to your loader, please contact your Wacker Neuson partner or importer. They will be happy to respond to your questions, suggestions or criticisms at any time.
We are condent that you will be very satised with your new Wacker Neuson loader.
Wacker Neuson Construction Equipment AG
CONTENTS
2
TABLE OF CONTENTS
PREFACE ............................................................................................................................................................... 7
1 BASIC INFORMATION .....................................................................................................................................8
1.1 Notes about this Operator’s Manual ....................................................................................................... 9
1.2 Explanation of the symbols used in this Operator’s Manual ................................................................. 10
1.3 Warranty and liability............................................................................................................................. 11
1.4 Intended use ......................................................................................................................................... 12
2 BASIC SAFETY INSTRUCTIONS .................................................................................................................. 14
2.1 Organizational measures ...................................................................................................................... 15
2.2 Selection and qualication of personnel / basic duties ......................................................................... 17
2.3 Safety instructions for certain operating phases .................................................................................. 18
2.3.1 Safety instructions for normal operation ............................................................................................... 18
2.3.2 Safety instructions for other operating modes ......................................................................................20
2.4 Safety instructions for particular hazards ............................................................................................. 23
2.4.1 Forklift attachment ................................................................................................................................ 23
2.4.2 Working near overhead power lines ..................................................................................................... 24
2.4.3 Electrical power..................................................................................................................................... 25
2.4.4 Flying sparks / re danger ..................................................................................................................... 25
2.4.5 Gas, dust, steam, smoke ......................................................................................................................26
2.4.6 Hydraulics, pneumatics ......................................................................................................................... 26
2.4.7 Tip-overs ............................................................................................................................................... 27
2.4.8 Noise ..................................................................................................................................................... 27
2.4.9 Oils, grease and other chemical substances ........................................................................................ 27
2.5 Transporting and towing / restarting ..................................................................................................... 28
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2.6 Final decommissioning / dismantling .................................................................................................... 28
2.7 Safety labels used ................................................................................................................................. 29
2.8 Safety devices ....................................................................................................................................... 34
2.8.1 Fire extinguisher ................................................................................................................................... 34
2.8.2 Rotating beacon .................................................................................................................................... 34
2.8.3 Seat belt ................................................................................................................................................ 35
2.8.4 Emergency exit ..................................................................................................................................... 36
2.8.5 Backup alarm for reverse drive ............................................................................................................. 36
2.8.6 Battery disconnect switch ..................................................................................................................... 37
2.8.7 Loader lift arm locking system .............................................................................................................. 38
3 TECHNICAL DATA .......................................................................................................................................... 39
3.1 Technical description ............................................................................................................................39
3.2 Loader data ........................................................................................................................................... 41
3.3 Product identication number plates ..................................................................................................... 43
3.4 Dimensions ...........................................................................................................................................44
4 DESCRIPTION OF THE INDICATOR, WARNING AND CONTROL ELEMENTS ......................................... 46
4.1 Operating elements and instruments .................................................................................................... 46
4.2 Control and warning lights .................................................................................................................... 48
4.3 Indicator devices ................................................................................................................................... 52
4.4 Switches / rotary switches .................................................................................................................... 53
4.5 Rocker switches .................................................................................................................................... 54
5 OPERATING AND OPERATION ....................................................................................................................58
CONTENTS
4
5.1 Before starting up ................................................................................................................................. 58
5.1.1 Fu el in g .................................................................................................................................................. 58
5.1.2 Operation ..............................................................................................................................................60
5.1.3 Doors and windows............................................................................................................................... 62
5.1.4 Adjusting the operator’s seat ................................................................................................................ 65
5.1.5 Adjusting the steering column ............................................................................................................... 68
5.1.6 Seat belt ................................................................................................................................................ 69
5.2 Starting up ............................................................................................................................................ 72
5.2.1 Lighting system and forward warning device ........................................................................................ 72
5.2.2 Wipers and windshield washer system ................................................................................................. 74
5.2.3 Headlights and rotating beacon ............................................................................................................ 76
5.2.4 Ventilation and heating of the cab ......................................................................................................... 78
5.2.5 Before starting the engine ..................................................................................................................... 80
5.2.6 Starting the engine ................................................................................................................................ 81
5.3 Propulsion operation .............................................................................................................................84
5.3.1 Preparation for travel in public trafc .................................................................................................... 84
5.3.2 Travel speed .......................................................................................................................................... 85
5.3.3 Stopping and parking ............................................................................................................................ 89
5.4 Work operation ...................................................................................................................................... 90
5.4.1 Operating lever for Loader lift arms ...................................................................................................... 92
5.4.2 Loader lift arms locking system ............................................................................................................ 94
5.4.3 Activating the optional hydraulics .......................................................................................................... 95
5.4.4 Differential lock ................................................................................................................................... 100
5.4.5 Changing attachments ........................................................................................................................ 102
5.4.6 Bucket ................................................................................................................................................. 109
5.4.7 Tip-overs ..............................................................................................................................................115
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5.4.8 Precaution measures for various temperature conditions ...................................................................116
5.5 Optional equipment ..............................................................................................................................118
6 TOWING AND TRANSPORTING ................................................................................................................. 122
6.1 Tow in g ................................................................................................................................................. 122
6.2 Transporting ........................................................................................................................................ 126
7 LOWERING LOADER ARMS........................................................................................................................ 133
8 RELIEVING RESIDUAL PRESSURE IN THE HYDRAULIC SYSTEM ........................................................ 134
9 SECURING THE LOADER ........................................................................................................................... 137
10 SERVICING AND INSPECTION ................................................................................................................... 138
10.1 Basic safety instructions for servicing and inspection ........................................................................ 138
10.2 Servicing and inspection intervals ...................................................................................................... 146
10.3 Lubrication schedule ........................................................................................................................... 158
10.4 Cleaning the loader .............................................................................................................................160
10.5 General safety check .......................................................................................................................... 162
10.6 Specications and lling quantities ..................................................................................................... 163
10.7 Maintenance and inspection work ...................................................................................................... 164
10.7.1 Preparation for maintenance and inspection work.............................................................................. 164
10.7.2 Servicing the engine ........................................................................................................................... 169
10.7.3 Servicing the fuel system .................................................................................................................... 175
10.7.4 Servicing the air lter system .............................................................................................................. 179
10.7.5 Servicing the cooling system .............................................................................................................. 182
CONTENTS
6
10.7.6 Servicing the hydraulic system ........................................................................................................... 188
10.7.7 Servicing the axles.............................................................................................................................. 197
10.7.8 Servicing the brakes ........................................................................................................................... 201
10.7.9 Servicing the tires and wheels ............................................................................................................ 204
10.7.10 Servicing the cab vent lter ................................................................................................................. 208
10.7.11 Servicing the air conditioning system ................................................................................................. 209
10.7.12 Servicing the electrical system ........................................................................................................... 210
10.8 Jump-starting / emergency starting .................................................................................................... 218
10.9 Loader storage ....................................................................................................................................221
11 TROUBLESHOOTING AND EMERGENCY MAINTENANCE ...................................................................... 224
12 SAFETY INSTRUCTIONS FOR REPAIRS ................................................................................................... 228
12.1 General safety regulations for repairs ................................................................................................. 228
12.2 Engine ................................................................................................................................................. 231
12.3 Welding work ...................................................................................................................................... 231
12.4 Hydraulic system ................................................................................................................................. 233
12.5 Brakes .................................................................................................................................................233
13 FINAL SHUTDOWN OF THE LOADER / DECOMMISSIONING ................................................................. 234
14 APPENDIX ....................................................................................................................................................236
14.1 Ordering replacement parts ................................................................................................................ 236
14.2 Inspection verication .........................................................................................................................238
Index ............................................................................................................................................................ 242
List of gures ......................................................................................................................................................246
PREFACE
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WL50
PREFACE
This Operator’s Manual describes how to operate and
service the loader. It provides operating and maintenance
personnel with the necessary knowledge of the loader‘s
functional characteristics in order to allow them to operate,
diagnose, maintain and repair the loader safely.
Observing the specications in this Operator’s Manual assures:
proper, safe, professional operation of the loader•
professional service, cleaning and care of the loader•
Observe the applicable OSHA 1910 and 1926 safety regulations when they apply to the user.
If required, the user/operator should supplement the Operator’s Manual with instructions and regulations regarding
environmental protection and national regulations relating
to accident prevention.
All persons involved in work on or with the loader must
read and apply this Operator’s Manual, for example with
regard to:
operation, including setup, maintenance during opera-•
tion, care, disposal of auxiliary materials and operating
materials as well as disposal of the entire loader.
maintenance (inspection, servicing, care).•
transport.•
Should you have questions about this Operator’s Manual, please contact your dealer or visit us at www.wackerneuson.
com.
The Operator’s Manual must always be located in
the loader or at the place where it is being used.
This Operator’s Manual is not designed for purposes of extensive maintenance work. Such work
must be performed by approved professionals.
BASIC I NFOR MATION
8
Each new user must be instructed before using the loader
for the rst time.
Instructions for using the Operator’s Manual:
Read the Operator’s Manual carefully before starting
•
up the loader
Observe all the safety instructions•
Follow the regulations and laws applicable at the place •
of use
Keep the Operator’s Manual in the protected compart-•
ment provided in the operator station/cab.
BASIC INFORMATION1
If it is not possible to rule out hazards to persons or material
during work according to the loader‘s intended use, these
hazards will be indicated by means of safety labels.
Instructions relate to the direction of travel of the loader;
this means that, when directional information is given, it
can be assumed that this refers to the direction of travel
of the loader.
BASIC I NFOR MATION
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WL50
Notes about this Operator’s Manual1.1
The specications, illustrations, weight information and
technical data are not binding and correspond to the state
of the art at the time of printing. We must reserve the right
to make changes without prior notice in the area of design,
conguration, appearance and technology on account of
the ongoing further development of the products.
Contact your dealer for clarication of use and/or instructions concerning intended use and attachments identied
in this Operator’s Manual.
Always strictly observe the safety instructions in this Operator’s Manual and the legal and trade association regulations
at the usage location.
This Manual provides information and procedures to safely
operate and maintain this Wheel Loader. For your own safety
and to reduce the risk of injury, carefully read, understand,
and observe all instructions described in this Manual.
Wacker Neuson Corporation expressly reserves the right
to make technical modications, even without notice, which
improve the performance or safety standards of its machines. The information contained in this manual is based
on machines manufactured up until the time of publication.
Wacker Neuson Corporation reserves the right to change
any portion of this information without notice.
BASIC I NFOR MATION
10
Explanation of the symbols used in this Operator’s Manual1.2
To ensure safe operation and maintenance of the wheel
loader, it is necessary that you follow all the instructions in
this Operator’s Manual.
The following symbols and the signal words DANGER,
WARNING, CAUTION, NOTICE, and NOTE, and the adjacent text, indicate hazards and instructions.
This is the safety alert symbol. It is used to alert you
to potential personal hazards.
Obey all safety messages that follow this symbol. ►
DANGER
DANGER indicates a hazardous situation which, if not
avoided, will result in death or serious injury.
Obey all safety messages that follow this symbol to ►
avoid injury or death.
WARNING
WARNING indicates a hazardous situation which, if
not avoided, could result in death or serious injury.
Obey all safety messages that follow this symbol to ►
avoid possible injury or death.
CAUTION
CAUTION indicates a hazardous situation which, if
not avoided, could result in minor or moderate injury.
Obey all safety messages that follow this symbol to ►
avoid possible minor or moderate injury.
NOTICE: Used without the safety alert symbol, NOTICE indicates a situation which, if not avoided, could
result in property damage.
Important general instructions
ENVIRONMENTAL NOTE
Important general instructions for environmental
protection
Note: Contains additional information important to a
procedure.
BASIC I NFOR MATION
11
WL50
Warranty and liability1.3
Observe the following points:
Do not make any changes to the wheel loader.•
Use only Wacker Neuson- approved attachments for
•
your loader.
The loader many only be started up, operated and ser-•
viced as described in the Operator’s Manual.
Use the loader only if all the safety and protection de-•
vices are intact.
Observe the monitoring systems during operation.•
Repairs may only be performed by trained profession-•
als.
Follow the Operator’s Manual exactly.•
The manufacturer/supplier is not liable for damage
resulting from unintended use. The operator/user
is the sole bearer of this risk.
The Operator’s Manual must always be located in
the loader or at the place where it is being used.
Place the Operator’s Manual in the document pocket at the rear of the operator‘s platform.
Fig. 1
Document pocket
BASIC I NFOR MATION
12
The loader is used to dislodge and load material by moving
the loader forward, taking into account the safety instructions
/ regulations and time periods listed by Wacker Neuson in
the Operator’s Manual. One work cycle consists of picking
up, lifting, transporting and unloading the material.
Similar uses of the loader with alternative attachments which
do not change the safety requirements for the loader but
modify the way in which it is used are only acceptable when
attachments that have been expressly approved by Wacker
Neuson are employed. Special conditions apply if you use
optional Wacker Neuson attachments.
The intended operation is described in this Operator’s
Manual. The instructions describe how to operate, maintain, inspect and adjust the wheel loader safely. The repair
manual provides additional instruction for safely diagnosing
malfunctions and repairing the wheel loader to maintain
service and performance levels.
Intended use1.4
The loader has been built according to applicable standards
and regulations. Operation by inexperienced persons, or in
an unintended manner, can result in hazards that can lead
to personal risk and subsequent harm to the operator and
persons in the operating area of the wheel loader. Improper
use can damage the wheel loader as well as property in the
vicinity of operation.
Read and understand the operating instructions in this Manual before operating this wheel loader. Before performing
production work, the operator should nd a remote site to
become familiar with the controls and machine response.
The machine shall be in serviceable condition before attempting to use it as described in the operating instructions.
If the wheel loader is determined not to be in serviceable
condition, notify the site or machine supervisor to have it
repaired before use.
Unintended use can endanger the lives of operating
personnel or other persons and cause injuries or
extensive material damage.
BASIC I NFOR MATION
13
WL50
The wheel loader shall not be employed for any of the following work activities:
lifting or transporting people•
using it as a working platform•
using it to lift or transport loads without providing work •
equipment for it
pulling trailer loads•
operating after the machine has received unauthorized
•
repairs
operating with unauthorized modications•
BASIC S AFET Y INS TRUC TION S
14
BASIC SAFETY INSTRUCTIONS2
Use the loader and attachments only as intended and
•
in serviceable condition.
Observe the operating instructions described in this
•
Operator’s Manual and all applicable work site safety
regulations.
Observe the permissible payloads.•
Wheel Loaders may only be used on suitable terrain.•
This Wheel Loader is equipped with a Starter Lock
/ Drive Lock which must be kept operational.
BASIC S AFET Y INS TRUC TION S
15
WL50
Organizational measures2.1
The following safety instructions are directed at the operator
/ user of the loader.
Always keep the Operator’s Manual in the compartment
•
provided for it.
As a supplement to the Operator’s Manual, universally •
valid legal and other binding regulations relating to road
trafc, compulsory coverage, accident prevention and
environmental protection must be observed, and users
must be instructed to observe them. This applies in particular to the maximum speed, depending on the model
and the permissible total weight of the loader.
If required, instruct that personal protective equipment be
•
worn. This applies particularly to the handling of harmful
substances at the location of use.
Supplement the Operator’s Manual with instructions,
•
including supervisory and reporting requirements, taking
into account differences between various companies,
e.g. with regard to the organization of work, work processes or personnel used.
Personnel who have been assigned to operate the loader
•
must have read the Operator’s Manual before operating
the wheel loader especially the chapter Basic Safety
Instructions.
Observe all safety messages on the loader and in the •
Operator’s Manual.
Make sure that all safety messages on the machine
•
are legible.
If the loader becomes unserviceable, stop operating and
•
inform the supervisor that the wheel loader is not functioning normally. Alternately, contact a trained technician
to diagnose and correct the condition before resuming
operation.
No modications shall be made to the wheel loader.
•
Contact your Wacker Neuson dealer for specic advice
regarding the use of the wheel loader and approved
attachments.
BASIC S AFET Y INS TRUC TION S
16
If worn or damaged parts need replacement, use only •
Wacker Neuson replacement parts to ensure optimum
performance and safety.
Inspect hydraulic hoses and ttings prior to the start of •
each work shift. Correct any observed leaks or abrasion
issues before operating the machine. Extended environmental exposure can cause undetectable damage.
Replace hose assemblies periodically as advised in the
maintenance schedule.
Thoroughly inspect the wheel loader before each op-
•
erating shift.
The Wheel Loader Repair Manual describes the special
•
tools, diagnosis techniques, repair sequence procedures, lifting and supporting devices needed to repair this
machine. To avoid unnecessary hazards and possible
damage to the Wheel Loader, do not attempt to repair
this machine without complying with the instructions in
the Repair Manual.
Make the location and means of operation of the re
•
extinguishers known, and consider the options for re
detection and ghting.
A Falling Object Protection System (FOPS) is available
•
for the Wheel Loader Operator Protection System. OSHA
and MSHA require this protection when operating with
overhead hazards. Contact your Wacker Neuson dealer
for advice and availability of a certied FOPS.
BASIC S AFET Y INS TRUC TION S
17
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Selection and qualication of personnel / basic duties2.2
Personnel being trained, educated, instructed or partici-
•
pating in a general training program may only work on
or with the machine under constant supervision of an
experienced, authorized supervisor.
Work on the machine‘s electrical equipment may only be
•
performed by an electrician or by trained persons under
the direction and supervision of an electrician.
Work on the chassis, brakes and steering system may •
only be performed by trained, specialized personnel.
Only trained, specialized personnel with specic knowl-
•
edge of and experience in hydraulics may work on hydraulic units.
The operator of the wheel loader must be qualied to
•
operate the machine through demonstration of comprehension of the operating instructions. No one shall
operate the wheel loader if impaired due to intoxication
or drug reaction.
Diagnosis and repair of the wheel loader shall be per-
•
formed by trained competent technicians unimpaired by
intoxication or drug reaction.
Prohibit unauthorized and untrained people from access
•
to the starting key and operation of the wheel loader.
The wheel loader operator is responsible for visually
•
monitoring the work area of the wheel loader and preventing anyone from entering the area without permission. If a person enters the area while the wheel loader
is in operation, the operator shall stop the wheel loader
and instruct the person to leave the work area until the
wheel loader has been stopped in a safe mode. The
person may then approach the machine in full view of
the operator.
BASIC S AFET Y INS TRUC TION S
18
Safety instructions for certain operating phases2.3
If the wheel loader does not respond as expected to the
•
operator command or exhibits a malfunction, stop the
machine, contact the supervisor and restore the machine
to serviceable condition before resuming operation.
Start and operate the loader only from the operator’s
•
seat.
When switching on and off, observe the indicator dis-
•
plays in accordance with the Operator’s Manual.
Make sure no one is located in the operating area of the
•
loader before starting the engine.
After starting the engine and conrming that the indi-
•
cators are responding correctly, activate the steering,
brakes, lights, signals and loader/accessory functions
to conrm that these devices are responding correctly
to the control command.
To avoid damage to the wheel loader, position the loader
•
bucket or accessories before moving the machine. Re-
conrm that there are no people in the work or travel
area before moving the machine.
The safety instructions are directed at all persons involved
in work on or with the loader.
Safety instructions for normal operation2. 3 .1
Refrain from any measures that could put safety into
•
question.
Before starting work, familiarize yourself with the working
•
environment in which you will be using the loader. The
working environment includes, for example, obstacles in
the working and trafc area, the bearing capacity of the
ground and the necessary safeguarding of the location
to allow it to be used as a public trafc area.
Take precautions to ensure that the loader is operated •
only in a safe, serviceable state.
Only operate the loader if all the protection devices and
•
safety devices, e.g. detachable protection devices, sound
absorbers and exhaust equipment, are serviceable and
operational.
Check the loader at least once a day for visible de-
•
fects.
BASIC S AFET Y INS TRUC TION S
19
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When driving on public roads, lanes and squares, ob-
•
serve the valid road trafc regulations and put the loader
into a condition permissible for the road beforehand.
As a matter of principle, turn on the lights when trav-
•
eling on public roads to increase awareness for road
trafc..
When driving through underpasses, gates, bridges, tun-
•
nels, overhead lines, etc., always make sure that you
have enough clearance above and on both sides and a
sufcient safety margin.
Always keep sufcient distance away from excavations,
•
embankments and the edges of piled up material.
Refrain from any method of operation that could ad-
•
versely affect the loader‘s stability. This also includes
the duty to pass on information regarding the approved
carrying capacity (=payload) for the relevant loader at-
tachments. (carrying capacity / approved payload are
specied in the Operator’s Manual)
Do not drive transversely on slopes; always keep work •
equipment and load near the ground, especially when
driving down slopes.
When driving down a slope, always adjust your driv-
•
ing speed to take account of the respective conditions.
Always reduce your speed before reaching a downhill
slope, and not after you have reached it.
The load must be located on the uphill side during driv-
•
ing on downhill or uphill slopes.
As a matter of principle, always secure the loader from •
accidentally rolling away and against unauthorized use.
Turn off the engine, put on the parking brake, lower the
work equipment, remove the starting key and, if necessary, employ a wheel chock.
BASIC S AFET Y INS TRUC TION S
20
Safety instructions for other operating modes2.3.2
These safety instructions refer to special tasks relating to the
use of the loader and servicing tasks - as well as emergency
maintenance during operation or work concerning disposal
of the auxiliary and operating materials.
The Operator’s Manual provides adjustment, mainte-
•
nance and inspection information and schedules in
subsequent sections. This information is essential to
ensuring peak performance satisfaction and safety over
the life of the wheel loader.
This Operator’s Manual provides routine adjustment
•
and maintenance procedures in addition to operating
instructions. Diagnosis and repair of the wheel loader
requires special skill, training and tools. Your Wacker
Neuson dealer has the trained technicians to perform
such work safely and effectively.
Maintenance and repair work shall be performed by
•
operators and technicians trained and knowledgeable
of the wheel loader function and attachments.
Do not attempt to perform maintenance or repair on the
•
wheel loader until the machine and engine is stopped and
all attachments are in a stable position. Do not attempt to
perform maintenance or repair work on hot surfaces or
components of the machine. Read and understand the
procedure for maintenance and repair in the Operator’s
and Repair Manuals for this wheel loader.
Secure the maintenance area, allowing as large a space
•
as required.
If the loader is being completely shut off during servicing
•
and maintenance work, please observe the following
(see the chapter »Securing the Loader«):
Secure the loader from being accidentally turned back on by removing the starting key.
Attach a warning note to indicate that the loader is be- ing worked on.
Only perform servicing and maintenance work if the
loader is parked on an even, hard surface and secured
from rolling away and articulating at the steering swivel
point..
Before performing work with the loader arms raised,
install the support provided to prevent the loader arms
from lowering suddenly and inadvertently.
This device shall conform to ISO 10533. -
BASIC S AFET Y INS TRUC TION S
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Use lifting devices to raise and support parts and as-
•
semblies exceeding 10 kg (22 lbs) weight during repair
and replacement activity. Use only OSHA approved
devices to perform the lifting operation and verify that
the lifting devices are in serviceable condition.
The use of a crane to lift heavy assemblies or compo-•
nents requires that the operator is certied by OSHA.
The person attaching the load and signaling the operator
must be trained in proper techniques as well as voice
and hand signals to instruct the crane operator.
For assembly above head height, use only climbing aids
•
and working platforms which are intended for this purpose, or which are safe for use in this situation. Do not
use machine parts as climbing aids. Keep all handles,
steps, pedestals, platforms and ladders free of dirt, snow
and ice.
Clean the entire loader, especially the connections
•
and threaded connections, with oil, fuel or care products when beginning maintenance and servicing work.
Use lint-free cleaning rags and no aggressive cleaning
agents.
Before cleaning the loader with water or by steam jet
•
(high-pressure cleaner) or with other cleaning agents,
cover up / seal off all the openings into which water,
steam and cleaning agents are not permitted to enter.
Electrical components, inlets and outlets for the engine‘s
combustion air and reservoir openings are particularly
at risk. Completely remove the covers / seals after you
have nished cleaning.
Before restarting, retighten any threaded connections
•
loosened during servicing and repairs, in particular for oil
or fuel lines. When performing maintenance and servicing work, check all the lines and threaded connections
for leaks and tight t.
BASIC S AFET Y INS TRUC TION S
22
Should it be necessary to remove safety devices during
•
setup, servicing or repairs, reinstall and check the safety
devices immediately after nishing the work and verify
that the devices perform correctly.
Replace the ROPS (Roll Over Protective Structure) or
•
FOPS structure if it is permanently deected, a member
is deformed, it has become corroded, and/or it has been
modied. If the mounting structure, base, or mounting
hardware is damaged, consult your Wacker Neuson
dealer for assistance. Do not attempt to repair, straighten
or reuse a damaged ROPS or FOPS.
Responsibly dispose of the unwanted materials and
•
uids resulting from the repair. Hazardous material shall
be disposed in a hazardous material container(s). Parts
and assemblies can be recycled.
WARNING
Never use the machine without the ROPS/FOPS
properly installed.
Do not drill, weld, straighten, or bend the ROPS
►
/ FOPS protective structures.
Allow only trained authorized personnel to install
►
new ROPS / FOPS structures.
ROPS / FOPS - protective structures
BASIC S AFET Y INS TRUC TION S
23
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Safety instructions for particular hazards2.4
Forklift attachment2.4.1
WARNING
Personal injury hazard.
Falling objects can strike the operator.
Do not transport large bales or packaged goods
►
without a FOPS (operator canopy or cabin).
Ensure that large loads are properly secured
►
and supported. See ANSI B56.1, OSHA1910
and OSHA1926 for regulations on carrying material.
Do not stack load higher than fork restraint. ►
Fig. 2
Transport of large
bales or packaged
goods
BASIC S AFET Y INS TRUC TION S
24
WARNING
Electric shock hazard.
The operator of the Wheel Loader can be killed if
the Wheel Loader comes in contact with electrical
wires.
Keep the loader and attachment tools at a suf- ►
cient distance from overhead power lines and
other electrical lines of more than 50 V (see
table below).
If inadvertent contact with a live electric source occurs:
Do not leave the loader until the electricity has been
•
disconnected and a qualied technician directs the op-
erator to leave the machine..
If feasible, drive the loader away from the danger
•
area!
Warn any people around the loader not to get any nearer
•
and not to touch the machine.
Arrange to have the power turned off.•
Working near overhead power lines2.4.2
Nominal voltage Clearance distance
up to 1000 V 1 m 3.3 ft
over 1 kV up to 110 kV 3 m 9.8 ft
over 110 kV up to 220 kV 4 m 13 ft
over 220 kV up to 380 kV 5 m 16.4 ft
Unknown nominal voltage 5 m 16.4 ft
BASIC S AFET Y INS TRUC TION S
25
WL50
Electrical power2.4.3
Regularly check the loader‘s electrical equipment. De-•
fects, such as loose plug connections or cables with
burnt insulation, shall be replaced before resuming operation.
If an electrical malfunction is discovered, stop the wheel
•
loader in a safe location, lower the loader arms and attachment to the ground and stop the engine. Contact
the supervisor for diagnosis and repair by a qualied
technician before resuming operation.
Replacement fuses shall be of the same type and capac-
•
ity as specied by the manufacturer in the Operator’s
and Repair Manuals. Do not attempt to bypass a fused
system to resume operation.
Flying sparks / re danger2.4.4
WARNING
Fire hazard.
Sparks from the exhaust, or electrical equipment,
or hot machine parts can ignite explosions and
res.
Do not work in enclosed spaces where am-
►
mable materials, explosive vapors, or combustible dust are found.
Stay clear of ammable materials such as hay ►
and straw.
Park the Wheel Loader only in areas free of
►
ammable materials.
BASIC S AFET Y INS TRUC TION S
26
Gas, dust, steam, smoke2.4.5
Diesel engine exhaust emissions are toxic in concen-
•
trated amounts. Do not operate the wheel loader in enclosed spaces or inadequately ventilated spaces.
Determine and follow regulations regarding safe opera-
•
tion at the specic work site.
Do not operate the wheel loader near open ames. -
Do not perform welding repairs in explosive atmo-
spheres.
Do not weld fuel reservoirs or fuel system compo-
nents.
Do not perform any welding operation unless qualied to do so.
Wear appropriate personal protective equipment (breath-
•
ing lter, protective suit) for protection against specic
dangers, e.g. poisonous gases, corrosive steam, poisonous (i.e. containing toxins) surroundings, etc.
Hydraulics, pneumatics2.4.6
When detected, oil leaks shall be repaired to avoid:•
environmental hazards re hazards slip hazards explosion hazards personal injury hazards. -
Do not attempt to repair a hydraulic system or component
•
until the hydraulic pressure has been relieved. Relieve
the pressure by activating controls as advised in this
Operator’s Manual or the Repair Manual.
Replace hydraulic lines and ttings with original equip-•
ment parts from your Wacker Neuson dealer to assure
original performance and safety. The reinstalled hydraulic line routing and attachment shall conform to the
original routing. Conrm that the replacement routing
is not interfering with other parts, chang across sharp
surfaces or resting on or near hot surfaces.
BASIC S AFET Y INS TRUC TION S
27
WL50
NOTICE
Use the appropriate fuel for climate temperature
ranges to avoid engine stoppage from fuel gelling.
Noise2.4.8
All the loader‘s sound-proong devices must be in their
•
protection position during operation.
If necessary, the operator must wear personal hearing •
protection.
Oils, grease and other chemical substances2.4.9
Observe the valid safety regulations for the respective •
product when handling oil, grease and other chemical
substances.
Do not service the wheel loader immediately after op-•
eration. Wait until hot surfaces have cooled and can be
touched comfortably.
Smoking and open ames are prohibited during fueling.
•
Danger of re or explosion!
Tip-overs2.4.7
WARNING
Personal injury hazard.
Falling Loader can strike or crush the operator.
Do not operate the wheel loader without fasten-
►
ing the seat belt.
Keep the loader lift arms and attachment as low
►
as practical when traveling.
If the machine tips over, or in the event of an extreme slope condition, take the following steps to
avoid engine damage:
Stop the engine as quickly as practical to avoid
►
damage from lubrication starvation.
Do not operate the engine or machine after an ►
incident until a technician has inspected and
corrected any damage resulting from the incident.
BASIC S AFET Y INS TRUC TION S
28
Transporting and towing / restarting2.5
Instructions are provided in this Operator’s Manual for •
towing, loading and transporting the wheel loader safely
without machine damage.
The towing machine shall be capable of towing the wheel
•
loader.
The loading and transport equipment shall be appropri-
•
ate to safely complete the sequence of operation. If the
wheel loader is to be lifted by a crane device, consult
the machine specications to select the correct crane
capacity and OSHA lifting devices to safely complete
the lifting operation.
Only restart the loader according to the Operator’s
•
Manual.
See Chapter 6 for complete transporting and towing
•
instructions.
Final decommissioning / dismantling2.6
Drain and dispose of all uids in suitable containers and
•
dispose of the uids in an environmentally responsible
manner. Do not dispose in sewers, streams, lakes or
on the ground.
Remove the battery and dispose of it at an authorized •
recycling center. Remove the starting motor to disable
the engine.
Dismantle and recycle the components according to the
•
material instructions on the individual parts. Tires and
rubber based parts can be recycled separately.
BASIC S AFET Y INS TRUC TION S
29
WL50
Safety labels used2.7
Maintain all safety message labels on the machine
in a legible manner. If a safety label becomes damaged or illegible, replace it with a new label available from your Wacker Neuson dealer or at www.
wackerneuson.com.
Fig. 3
Location of the
Safety labels
1
311
15
6
8 9
10
7
12
16
13
5
2
14
BASIC S AFET Y INS TRUC TION S
30
Safety label 3
Warning
Personal injury hazard from falling
equipment.
Never stand in the unsecured danger
area.
Use the safety supports.
Safety label 1
Warning
Do not stand near the loader during
operation.
Do not go under the loader lift arms
when raised.
Safety label 2
Shearing hazard
Shearing hazard from rotating fan. Stop
the engine before entering the area.
Safety label 4
Warning
Personal injury hazard. The rollover bar
should always be locked in protection
position, insofar as this is possible given
the working conditions.
BASIC S AFET Y INS TRUC TION S
31
WL50
Safety label 5
Important
Remove the starting key and read the
Repair Manual before proceeding with
any work activity on the wheel loader.
Safety label 6
Important
Lubricate the center joint daily before
beginning work. Refer to your Operator’s Manual for more information.
Safety label 7
Warning
Hot surfaces can cause burns.
Do not touch hot surfaces.
Safety label 8
Warning
Personal injury hazard.
Never lift or transport people with the
lifting attachment.
BASIC S AFET Y INS TRUC TION S
32
Safety label 12
Warning
Personal injury hazard.
The Wheel Loader can injure people
on the work site who are in the danger
zone.
Keep personnel away from the Wheel
Loader during operation!
Safety label 11
Warning
Pinching/crushing hazard. Avoid the articulation area while the Wheel Loader
is in operation. Before working in the
articulation area and before transporting, secure the articulation pivot. Refer
to Operator’s Manual.
Safety label 10
Warning
Personal injury hazard.
Never transport passengers on the
Wheel Loader.
Safety label 9
Warning
Personal injury hazard. Always wear
the seat belt while operating the wheel
loader.
BASIC S AFET Y INS TRUC TION S
33
WL50
Safety label 14
Warning
Safety label 13
Warning
15 PSI
1 BAR
If the ROPS / FOPS protective structures are damaged,
they can not serve their protective function.
Never drill or weld the ROPS / FOPS protective structures.
Refer to Operator’s Manual.
Hot liquids or steam escaping un-
der pressure can cause burns.
Do not open radiator when it is hot. Re-
fer to Operator’s Manual.
Safety label 16
Warning
Personal injury hazard.
Falling attachments can
strike people in the dangerous area.
Always switch the three-way
valve to hydraulic connection as soon as the attachment is locked.
Label 15
Possibility of equipment
damage
Close both doors before tilting the cab.
NICHT UNTER LAST schalten
Do not operate under load
Ne pas changer de vitesse sous charge
Quitar la presión antes de cambiar
BASIC S AFET Y INS TRUC TION S
34
Safety devices2.8
Fire extinguisher2.8.1
A re extinguisher can be installed to operator cab rail to
the right of the operator ‘s seat. (Fig. 4).
Rotating beacon2.8.2
(Optional equipment)
Fig. 5
Attaching the rotating beacon
The receptacle for the rotating beacon can be attached to
the operator cab roof in the back (Fig. 5).
To switch the rotating beacon on and off, see the chapter
»Switches / rocker switches«.
Use the yellow rotating beacon according to local
regulations.
Fig. 4
Fire extinguisher
BASIC S AFET Y INS TRUC TION S
35
WL50
Seat belt2.8.3
Before starting the engine:
adjust the seat to provide comfortable access
•
to all control ranges.
examine the seat belt webbing for any mechani-
•
cal or chemical damage and replace if necessar y.
inspect all seat belt hardware for functional-
•
ity and serviceability, repairing or replacing if
necessary.
fasten the seat belt and adjust to contact the
•
lower torso rmly.
When not in use:
store the seat belt by placing it across the seat •
pad.
ensure that the seat belt retractors work free-
•
ly.
Fig. 6
Seat belt
BASIC S AFET Y INS TRUC TION S
36
Emergency exit2.8.4
Fig. 7
Emergency exitThe cab door on the left side of the machine fac-
ing the forward direction of travel is the primary
access system to the operator station. The right
hand access is a secondary opening intended for
emergency use only.
Backup alarm for reverse drive2.8.5
(Optional equipment)
A backup alarm sounds when reverse gear is engaged.
The sound is to warn persons who are in the vicinity of the
loader that the loader is going into reverse.
BASIC S AFET Y INS TRUC TION S
37
WL50
Battery disconnect switch2.8.6
Disconnect the battery from the electrical system by rotating
the key counter-clockwise. In an emergency, the disconnect switch can be used to disconnect the battery from
the electrical system. Disconnecting the battery from the
electrical system will reduce the possibility of discharge
before the next use. Also, disconnecting the battery from
the electrical system and removing the key is a means of
resisting machine theft.
Turn the switch lever counter-clockwise:•
The battery is disconnected from the electrical system –
Turn the switch lever clockwise:•
The battery is connected to the electrical system. –
After removing the disconnect switch key, place the
attached cover over the key opening to prevent dirt
and water from entering the switch.
To connect the battery to the electrical system,
remove the cover, insert the key and rotate the key
clockwise. To avoid inadvertent control behavior,
do not disconnect the battery from the electrical
system with the engine running or any electrical
systems activated.
Fig. 8
Battery disconnect
switch
BASIC S AFET Y INS TRUC TION S
38
Loader lift arm locking system2.8.7
Activate the loader lift arms locking system by switching the
rocker switch (Fig. 9).
Switch the rocker switch (Fig. 9) to position 1:•
The locking system is switched on. –
Switch the rocker switch (Fig. 9) to position 0:•
The locking system is switched off. –
CAUTION
Possibility of inadvertent loader lift arm activation.
Inadvertent activation can result in the loader arms
dropping causing the bucket or attachment to engage the road surface. This can result in loss of
machine control with possible injury to the operator
and other work site persons.
Always lock the loader lift arm control to prevent
►
inadvertent activation during travel.
The operator shall not leave the operator seat ►
until the loader arms and attachment have been
lowered to and are resting on the ground.
The loader lift arms can be secured against unintentional operation with an arrest.
When the arrest is switched on, the control lamp in
the switch lights up (Fig. 9), and the loader lift arms
will not move if the loader controls are moved.
Fig. 9
Switch for loader lift
arms lock
TECHNICAL DATA
39
WL50
TECHNICAL DATA3
Technical description3 .1
The loader consists of the vehicle frame, the drive and the
axles. The vehicle frame contains all the drive and control
units for the standard conguration. The vehicle frame consists of the front carriage with the loader lift arms, and the
rear carriage, in which the drive unit is situated. They are
connected by an articulated swivel joint.
Drive
The loader is driven by a diesel engine, which powers the
steering and working hydraulics and the driving hydraulics.
The propulsion hydraulics provide power to the transfer
gear box by a directly attached hydraulic motor. The rear
axle is integral with the transfer gear box. The front axle is
powered by a driveshaft connecting the transfer gear box
to the front axle.
The axles are designed as rigid axles.
Brakes
Service braking is provided by the propulsion hydraulic
system through the transfer gearbox and driveshaft to both
axles. The braking-inching pedal provides a secondary service brake by contacting a hub-mounted differential in the
transfer gear box. A separate parking brake with separate
control is provided that engages the differential hub in the
transfer gear box.
Steering
The fully hydraulic articulated swivel steering system operates via a dual action cylinder.
TECHNICAL DATA
40
Hydraulics
The loader has two hydraulic systems supplied by a hy-
draulic uid reservoir:
- hydrostatic drive
- steering and working hydraulics
The hydrostatic drive consists of an axial piston variable
displacement pump, which drives an axial piston motor. The
axial piston variable displacement pump is rigid coupled
directly to the diesel engine, while the axial piston motor is
directly coupled to the transfer case.
Displacement is automatic and continuous, but depends on
speed and load. The travel speed depends on the engine
speed and the machine load. Operating speed is set by
the accelerator pedal position, engine speed and torque
demand of the loading operation. Depending on load, the
variable displacement pump automatically adjusts pump
displacement to balance torque and speed requirements
within the power capability of the diesel engine. Since the
input power is limited to the diesel engine output, increased
demands from traversing a grade or loading the bucket will
result in speed reduction which increases the torque to meet
the performance demand. This adjustment control allows
the entire range of performance to be utilized optimally.
Actuating the inching pedal is an override control that can
reduce wheel loader speed as operation demands. Depressing the pedal to the full range will stop the travel motion
of the wheel loader. The inching pedal permits an innite
number of control positions. The inching pedal provides the
service brake function by destroking the pump until no uid
is transmitted between the pump and motor.
A gear hydraulic pump supplies the steering and working
hydraulics with oil. The gear pump is rigid coupled to the
drive‘s variable displacement pump. Pump ow output is
directly proportional to the diesel engine speed.
The hydraulic system is equipped with relief valves, lters
and oil coolers.
TECHNICAL DATA
41
WL50
Electrical system
The electrical system operates at 12 volts and the electrical
circuits are protected by fuses to prevent overload damage
to the system and its components.
Equipment
The loading equipment consists of the loader lift arms with
an integrated mechanical or hydraulic quick-change receptacle, lifting and tipping cylinders and the appropriate
attachments.
The loader is equipped with a rollover protective structure
(ROPS).
Loader data3.2
Engine
Manufacturer Deutz
Model 4-cylinder turbo diesel engine
Type TD 2011 L04 w
Capacity 3619 cm³ (221 inch³)
Cooling Water-cooled
Output
58 kW / 78 hp at 2300 rpm
SAE rating according to ISO9249
Drive (driving speed)
1. gear
0 – 7 km/h
0 – 4.35 mph
2. gear
0 – 20 km/h
0 – 12.43 mph
Steering
Fully hydraulic center-pivot steering
Rotating angle 12°
Turn angle 44°
TECHNICAL DATA
42
Weight specifications
Operating weight 4835 kg 10659 lb
Permissible total weight 5680 kg 12522 lb
Permissible axle load per axle 4260 kg 9391 lb
Permissible payload with shovel 1263 kg 2784 lb
Permissible payload with pallet fork 1270 kg 2800 lb
Hydraulics
Driving hydraulics
Flow rate 129 l/min 34 gallons/min
Working pressure 445 bar 6454 psi
Working hydraulics
Flow rate 64 l/min 17 gallons/min
Working pressure 230 bar 3336 psi
Steering hydraulics
Flow rate 64 l/min 17 gallons/min
Working pressure 190 bar 2756 psi
Noise values
Average LwA measured at the operator‘s ear 98.9 dB(A)
Guaranteed LwA measured at the operator‘s
ear
100 dB(A)
Specied LpA measured at the operator‘s ear 75 dB(A)
Vibrations (weighted effective value)
Upper extremities no more than 2.50 m/s² 8.19 ft/s²
Feet or seat surface no more than 0.80 m/s² 2.64 ft/s²
Electrical system
Working voltage 12 volts
Battery 77 Ah
TECHNICAL DATA
43
WL50
Product identication number plates3.3
A product identication number plate is attached to the
loader on the right side of the front carriage (Fig. 10).
It lists the following information:
Manufacturer•
Year built•
Vehicle ID•
Type•
Engine power•
Axle loads•
Operating weight•
Permissible total weight•
In addition, the vehicle ID is engraved on the right side of
the rear end near the entry area (Fig. 10/1).
Furthermore, the following loader components each have
their own rating plate:
The diesel engine•
The axial piston variable displacement pump (hydraulic
•
transmission pump)
The oil engines (hydraulic traction motor)•
The axles.•
Fig. 10
Vehicle ID
1
TECHNICAL DATA
44
Dimensions3.4
DimensionsFig. 11
TECHNICAL DATA
45
WL50
*In the event of deviating tires or reversed wheel rims the dimensions will change
Dimensions with 405/70 R18 EM tires
Item Designation Value
A Overall length with standard
shovel
5417 mm 213.3 inch
A‘ Overall length without shovel 4545 mm 178.9 inch
B Axle center to shovel pivot-
point
1030 mm 40.6 inch
C Wheelbase 2005 mm 78.9 inch
D Rear overhang 1445 mm 56.9 inch
E Overhead loading height* 3094 mm 121.8 inch
F Max. height of shovel pivot
point*
3336 mm 131.3 inch
G Height of seat* 1563 mm 61.5 inch
H Max. dumping height* 2569 mm 101.1 inch
I Scraping depth* 50 mm 1.97 inch
K Reach at H* 723 mm 28.5 inch
L Height to top of cab* 2602 mm 102.4 inch
Item Designation Value
M Total working height* 4090 mm 161.0 inch
N Max. dumping angle at max.
lift height
38°
O Reverse roll angle on ground 43°
P Reverse roll angle at max. lift 45°
Q Inside turning radius* 1546 mm 60.9 inch
R Overall width* 1840 mm 72.4 inch
S Radius at outer edge* 3449 mm 135.8 inch
T Ground clearance* 377 mm 14.8 inch
U Turn angle 44°
V Width across cab 1251 mm 49.3 inch
W Track width* 1400 mm 55.1 inch
Z Maximum turning radius
(depends on shovel width)
3908 mm 153.9 inch
DesCRIpTI ON Of Th e INDI CATOR, WAR NING A ND CONT ROl ele meNTs
46
DESCRIPTION OF THE INDICATOR, WARNING AND CONTROL ELEMENTS4
Operating elements and instruments4.1
Fig. 12
Operating elements
2
3
4
5
6
7
8
10
11
1
9
DesCRIpTI ON Of Th e INDI CATOR, WAR NING A ND CONT ROl ele meNTs
47
WL50
Item Designation
1
Steering wheel turning knob
2
Instrument panel
3
Steering wheel
4 Accelerator
5
Operating lever for load arm / drive
6
Operating lever for optional hydraulics
7
Operating lever for parking brake
8
Operator’s seat
9
Braking-inching pedal
10
Operating lever for adjusting the steering column
11
Operating lever for lighting, turn signals and signal horn
DesCRIpTI ON Of Th e INDI CATOR, WAR NING A ND CONT ROl ele meNTs
48
Control and warning lightsFig. 13
1
3
2
1
Control and warning indicator lights4.2
If the indicator lights do not illuminate properly •
at the starting sequence, repair the malfunction
before operating the machine.
If an indicator light illuminates during operation,
•
move the machine to a safe place, lower the
loader arms and stop the engine.
Do not operate the wheel loader until the reason
•
for the illuminated indicator is determined and
corrective action has been completed.
Immediately turn off the engine if a light marked with
this * symbol is illuminated in the adjacent table.
1 2 3 4
5
6 7 8
DesCRIpTI ON Of Th e INDI CATOR, WAR NING A ND CONT ROl ele meNTs
49
WL50
Item Designation Function Symbol
1 Heater indicator light Illuminates during preheating
2
Indicator light for electrical connection on loader lift
arms (optional equipment)
Illuminates when electrical connection is switched on.
3 Warning light for return lter Illuminates if the pressure at the return lter is too high
4 No function Available for optional equipment
1
5 Indicator for fuel display
Illuminates when the fuel quantity falls to approx. 5 l (1.6
gallons)
*6
Warning light for engine temperature / hydraulic oil
temperature
Illuminates when engine temperature / hydraulic oil
temperature is too high
7 Warning light for alternator
Is illuminated if the battery is not accepting an electrical
charge
8 Indicator light for turn signal Illuminates when a turn signal is on
DesCRIpTI ON Of Th e INDI CATOR, WAR NING A ND CONT ROl ele meNTs
50
If the indicator lights do not illuminate properly •
at the starting sequence, repair the malfunction
before operating the machine.
If an indicator light illuminates during operation,
•
move the machine to a safe place, lower the
loader arms and stop the engine.
Do not operate the wheel loader until the reason
•
for the illuminated indicator is determined and
corrective action has been completed.
Immediately turn off the engine if a light marked with
this * symbol is illuminated in the adjacent table.
Control and warning indicator lights
Fig. 13 Control and warning lights
3
2
1
16151413
12
11109
DesCRIpTI ON Of Th e INDI CATOR, WAR NING A ND CONT ROl ele meNTs
51
WL50
Item Designation Function Symbol
9 Indicator light for main beam Illuminates when the main beam is switched on
*10 Warning light for engine oil pressure Illuminates when engine oil pressure is too low
11 Indicator light for parking brake Illuminates when the parking brake is on
12 Air lter indicator light Illuminates when the air lter is contaminated.
13 Indicator light for overdrive Illuminates when overdrive is engaged
14 Indicator light for crawler gear Illuminates when crawler gear is engaged
15 Indicator light for forward drive Illuminates when gear is set to forward drive
16 Indicator light for reverse drive Illuminates when gear is set to reverse drive
DesCRIpTI ON Of Th e INDI CATOR, WAR NING A ND CONT ROl ele meNTs
52
Indicator devices4.3
Item Designation Function
1
Engine temperature
Shows the diesel engine‘s temperature
2 Tachometer Shows the diesel engine‘s rpm
3 Hour meter
Adds up the loader‘s operating time.
Plan your service work and inspection
work according to the meter reading
4 Fuel gauge Shows the fuel quantity
1
3
2
1
0
Fig. 14
Indicator devices
1 2 43
DesCRIpTI ON Of Th e INDI CATOR, WAR NING A ND CONT ROl ele meNTs
53
WL50
Switches / rotary switches4.4
Item Designation Function
1 Combination switch
Switches lighting and signal
horn ON/OFF
2
Rotary switch, temperature control
To adjust the temperature of
the heater fan
3
Rotary switch, heater
fan control
Switches the heater fan on/off
1
3
2
1
0
Fig. 15
Rotary switches
2 31
DesCRIpTI ON Of Th e INDI CATOR, WAR NING A ND CONT ROl ele meNTs
54
Rocker switches4.5
1
3
2
1
0
Fig. 16
Rocker switches 1
1 2
3 4
5 6 7 8 9 10
Fig. 17
Rocker switches 2
DesCRIpTI ON Of Th e INDI CATOR, WAR NING A ND CONT ROl ele meNTs
55
WL50
Item Designation Function Symbol
1 No function Available for optional equipment
2 Rocker switch for hazard warning lights Switches hazard warning lights on/off
3 Rocker switch, air conditioning system
Switches the air conditioning system on/off
(optional equipment)
4 Rocker switch, illumination system Switches the lights for street driving on/off
5 Rocker switch, pressure relief for optional hydraulics Switch to relieve pressure on the optional hydraulics
6
Rocker switch, oat position / emergency lowering of the
loader lift arms (needed if the loader is equipped with
electrically unlockable lowering brake valves)
Switches on/off the oat position of the loader lift arms
for loaders with electrically unlockable lowering brake
valves
Rocker switch, special equipment for load swing dampening (second switch level)
On/off switch for the load-swing dampening
7 Rocker switch, loader lift arms arrest Switches the loader lift arms arrest on/off
8 No function Available for optional equipment
9 No function Available for optional equipment
10 No function Available for optional equipment
DesCRIpTI ON Of Th e INDI CATOR, WAR NING A ND CONT ROl ele meNTs
56
Rocker switches
11 12 13 14 15 16
Fig. 18
Rocker switches 3
DesCRIpTI ON Of Th e INDI CATOR, WAR NING A ND CONT ROl ele meNTs
57
WL50
Item Designation Function Symbol
11 Rocker switch for front headlights Switches front headlights on/off
12 Rocker switch for rear headlights Switches rear headlights on/off
13
Rocker switch, rear-window wiper / back washer system
(second switch level)
Switches rear window wipers and back washer system
on/off
14 Rocker switch rear window heating Switches the rear window heater on/off
15 Rocker switch for rotating beacon Switches rotating beacon on/off
16 No function Available for optional equipment
OPER ATING A ND OPE RATIO N
58
OPERATING AND OPERATION5
Before starting up5.1 Fueling5.1.1
Only operate the loader from the operator’s
•
seat.
Observe OSHA safety regulations.•
Arrange for training with an experienced opera-
•
tor. Practice operating the wheel loader in a
remote at area to become familiar with control
response.
Using this Manual as a reference, conduct
•
an inspection before operating the wheel
loader.
After prolonged storage or inactivity, refer to the
•
procedure for preparing to operate the loader.
Read the Operator’s Manual before starting up the
loader.
Lower the loader lift arms and attachment to the
•
ground and stop the engine to fuel the loader.
Fire hazard – diesel fuel is ammable! Do not
•
smoke and avoid re and open ames when
fueling.
Do not use gasoline. Use only diesel fuel. Do
•
not add gasoline to diesel fuel.
Diesel fuel is hazardous to your health. Wear
•
appropriate gloves.
If an inadvertent incident occurs during fuel-
•
ing, take immediate appropriate measures to
avoid hazards. Inform the supervisor or person
responsible for the fueling operation.
OPER ATING A ND OPE RATIO N
59
WL50
The diesel reservoir is located on the left side of the rear
of the loader. Access the reservoir‘s ller neck by opening
the engine enclosure (Fig. 19).
Unscrew the cap from the ller neck.•
Fuel the loader‘s reservoir through the ller neck.•
Carefully replace the fuel cap on the ller neck after
•
fuelling.
NOTICE
Use only clean, conventional high-grade diesel fuel
to operate the loader.
If at all possible, use a ne lter in the lling line.
eNVIRONmeNTAl NOTe
Diesel fuel is hazardous to the environment.
Do not allow it to be released uncontrollably into
the environment.
Immediately soak up with binding material any fuel
that has leaked, overowed or been spilled, and
dispose of it in an ecologically sound manner.
Immediately inform the persons responsible if fuel
has been released into the environment.
Fig. 19
Fuel filler neck
lOW sUlfUR fUel
OR UlTRA
lOW
sUlfUR
fUel ONlY
3 9 0 1 9 9 3 9 0
OPER ATING A ND OPE RATIO N
60
Before entering the cab
Check that the loader is clean and undamaged.•
Check that the handles and steps are in good condition
•
and clean.
Check that the cab windows are in good condition and •
clean.
Check that all safety components are present and fully •
functional.
Check that the rods, cylinders, hinge pins and coolers •
are clean.
Check that all the fasteners, joints and hinge pins t
•
tightly.
Check that all the safety messages and instructional
•
labels are present and in good condition.
Check the loader for oil, fuel and coolant leaks.•
Operation5.1. 2
WARNING
Personal injury hazard.
Do not operate the loader if it is not in service- ►
able condition or responding correctly to control
commands.
Park the machine in a safe place, lower the
►
loader arms and attachment, stop the engine
and notify your supervisor.
Do not operate the machine until the problem
►
has been corrected.
Check that the safety devices are present and ►
operative each time before you start up the
loader.
Replace damaged tires to avoid loss of produc-
►
tion and stability due to sudden deation.
Maintain a neat uncluttered operator space to
►
prevent slipping, tripping and potential impediments to control movement.
Keep the operating elements clean. ►
Follow the daily servicing schedule. ►
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Check:
Engine oil level•
Hydraulic uid level•
Coolant level•
Fuel level•
Check the condition of the tires, looking for abrasion,
•
cuts or wear. Check the tire pressure! Ensure that the
tires are inated to the proper pressure (see tire pressure table).
Ensure that the engine enclosures and the caps for the
•
fuel reservoir and hydraulic uid reservoir are present
and have been tightened.
Operator station access
WARNING
Slipping hazard.
Check that the handles and steps are in good ►
condition and clean before entering and exiting
the wheel loader control station..
Use the attached handles and steps. ►
Always get in and out with your face turned to- ►
ward the loader.
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Doors and windows5.1. 3
The cab has one door on the left and one on the right. The
right-hand door is intended for use as an emergency exit.
Open the cab door from the outside by pulling the door •
opener (Fig. 20/1).
Open the door from the inside by pulling the unlocking •
lever upwards (Fig. 20/2).
CAUTION
Possibility of injury or equipment damage from unlatched cab doors.
Close and latch the cab doors during opera-
►
tion.
The cab doors may be latched open during op-
►
eration if circumstances require.
Always latch both doors before operating the
►
wheel loader in the open or closed position.
Fig. 20
Cab door locking
mechanism
Illustration 1
outside
Illustration 2
inside
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The side windows can be opened and locked in this position. Open and close the side windows using the lever
(Fig. 21).
Arrest the side window by locking it in the holder (Fig.
•
22).
Activate lever Item 1 to release the window arrest (Fig. •
22).
Fig. 21
Window locking
mechanism
Fig. 22
Window arrest
1
OPER ATING A ND OPE RATIO N
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The doors can also be opened together with the side window
and locked in this position.
Arrest the door by locking it in the holder (Fig. 23).•
Activate lever Item 1 to release the door arrest (Fig.
•
24).
Fig. 23
Door arrest
1
Fig. 24
Release door arrest
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Adjusting the operator’s seat5.1. 4
You can adjust the operator’s seat to t your height and
posture. This keeps your muscles relaxed and prevents
you from tiring while working.
Adjust the seat so that you can comfortably reach the levers
and pedals with your back against the backrest.
You can adjust the seat in the following ways (Fig. 26):
WARNING
Personal injury or property damage hazard.
Adjusting the operator seat while the wheel loader
is in operation can cause inadvertent control movements.
Do not adjust the operator seat while the wheel
►
loader is in operation.
Stop the machine rst and then adjust the
►
seat.
The doors can also be locked in a slightly open position. To
do this, ip the locking lever (Fig. 25) over.
Always check that the cab doors and windows are closed
before leaving the loader.
Fig. 25
Door put-up hinges
OPER ATING A ND OPE RATIO N
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Fig. 26
Adjusting the operator’s seat
1
5 6
3
high
middle
low
2
4
Height adjustment:1.
The seat height can be adjusted to three different positions.
Lift the seat out of its lowest position until it engages in the
middle position. Lift the seat further in order to reach the
highest position. Lift the seat until it reaches the upper stop,
at which point it will return to its lowest position.
Armrest adjustment:2.
Adjust the inclination of the armrest when there is no load
on it by turning the adjustment wheel on its lower side.
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Lengthwise adjustment of the seat separately 3.
from the steering console:
Adjust the seat in the lengthwise direction by pushing the
locking lever upwards. After the adjustment, the locking
lever must click into place in the desired position. The operator’s seat should not move again after it has been locked
in place.
Lengthwise adjustment of the seat together
4.
with the steering console:
Adjust the seat in the lengthwise direction, together with
the steering console, by pushing the locking bar upwards.
After the adjustment, the locking bar must click into place in
the desired position. The operator’s seat should not move
again after it has been locked in place.
Weight adjustment:5.
Adjust the weight while sitting in the seat, by turning the
weight adjustment knob. The viewing window Fig. 26 (mag-
nication) allows you to read off the weight set.
Backrest adjustment:6.
Use the locking lever to adjust the degree of tilt of the backrest. The locking lever should lock in the desired position.
The backrest should not move again after it has been locked
in place.
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Adjusting the steering column5.1. 5
You can adjust the position of the steering column lengthwise
so that it ts your height and posture.
Operate the adjustment lever (Fig. 27).1.
Adjust the steering column as needed.2.
Let go of the adjustment lever.3.
WARNING
Personal injury or property damage hazard.
Adjusting the steering column while the wheel loader is in operation can cause inadvertent machine
movement.
Do not adjust the steering column while the
►
wheel loader is in operation.
Stop the machine rst and then adjust the steer-
►
ing column.
Fig. 27
Adjusting the steering column
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Seat belt5.1. 6
WARNING
Personal injury hazard.
Not wearing the seat belt, or operating with a damaged seat belt, can result in injury to the operato r.
Make sure seat belt and buckle stay clean. ►
Before operation check function of seat belt
►
and buckle.
Replace the belt or buckle immediately if they
►
are damaged.
Do not operate the machine if the seat belt is
►
damaged or not functioning correctly.
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Buckling the seat belt
Sit back in the operator seat, so that your entire back is
1.
touching the seat.
Place the seat belt over your lap.2.
Seat belt must not be twisted.3.
Insert the seat belt tab Item 1 into the opening in belt
4.
buckle Item 3 until it clicks.
If necessary, adjust the seat belt to your body size.
5.
See
section »Adjusting the seat belt« (page 71).
Releasing the seat belt
Press the red button Item 2 on the belt buckle.1.
1
2
3
Fig. 28
Buckling the seat
belt
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WARNING
Personal injury or property damage hazard.
Adjusting the seat belt while the wheel loader is
in operation can cause inadvertent control movements.
Do not adjust the seat belt while the wheel
►
loader is in operation.
Stop the machine rst and then adjust the seat
►
belt.
Adjusting the seat belt
Adjust your seat belt so that it ts snugly.
Lengthening the seat belt:
Pull the tongue clasp to draw the seat belt out to the
1.
required length.
Shortening the seat belt:
When seat belt is buckled, pull at the free end of the seat
1.
belt until it lies snugly across your lower lap.
Secure the excess seat belt by pushing it through the
2.
plastic clasp Item 1 (Fig. 29).
Shortening
1
Fig. 29
Adjusting the seat
belt
Lengthening
OPER ATING A ND OPE RATIO N
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Starting up5.2
WARNING
Possibility of injury or equipment damage from inoperable lights or individual functions.
Do not drive the loader if the entire lighting sys-
►
tem or individual functions are not working.
The warning and indicator lights display fault messages from the equipment.
All the rocker switches are switched on by moving
them to the down position.
Check the lighting, turn signal, and forward warning
device each time before driving.
Lighting system and forward warning device5. 2.1
Switch the lighting on by activating the rocker switch item
S (Fig. 30/1). The rocker switch can be switched in two
levels:
Bring the rocker switch to position 1:•
Parking light is switched on. –
Bring the rocker switch to position 2:•
Driving light is switched on. –
Bring the rocker switch to position 0:•
The light is switched off. –
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Switch the lighting, turn signal and forward warning device
functions on and off with the lever (Fig. 30/2).
Push the lever away from the operator:1.
The right turn signal is activated. –
Pull the lever towards the operator:2.
The left turn signal is activated. –
Push the lever upwards:3.
Main beam is switched on. –
Push the lever downwards:4.
Low beam is switched on. –
Push the horn symbol on the button:5.
The forward warning device is activated. –
Illustration 2
1
4
2
3
5
Fig. 30
Lighting / forward
warning device
Illustration 1
S
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Wipers and windshield washer system5.2.2
Switch the front windshield wiper and windshield washer
system on/off with the lever Item 1 (Fig. 31) to the left of
the steering wheel.
Twist the rotary switch to position 1:•
The windshield wiper switches on in level 1. –
Twist the rotary switch to position II:•
The windshield wiper switches on in level 2. –
Twist the rotary switch to position J:•
The front windshield wiper switches on in intermittent
–
mode.
Twist the rotary switch to position 0:•
The windshield wiper switches off. –
Press the button with the symbol •
Item 2 (Fig. 31):
The washer system switches on. –
Fig. 31
Switches for windshield wipers
Front window
1
2
Rear window
13
a
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Switch the rear windshield wiper and windshield washer
system on/off with the rocker switch Item 13 (Fig. 31).
Move the switch Item 13 into position 1:•
The rear windshield wiper switches on. –
With your nger, move the interlock Item a in the switch
•
Item 13 downwards. Now you can move the switch Item
13 into position 2.
The back washer system switches on. –
Move the switch Item 13 into position 0:•
The rear windshield wiper switches off. –
WARNING
Burn and cutting/shearing hazards from hot or moving engine parts.
Do not open the engine enclosure until the en- ►
gine has stopped.
Do not attempt to service the wheel loader until
►
the hot surfaces are comfortable to the touch.
For best cleaning performance, use a formulated
windshield uid that enhances cleaning and protects the system from freezing
Fig. 32
Location of the
windshield washer
container
Filling the container for the windshield washer
system
The container for the windshield washer system is located
on the rear side of the cab to the left. Access it by opening
the engine enclosure (Fig. 32).
OPER ATING A ND OPE RATIO N
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Headlights and rotating beacon5.2.3
The loader is equipped with headlights and taillights.
WARNING
Personal injury or property damage hazard. Working and driving lights can blind passing motorists.
Do not drive on public roads with working lights
►
illuminated.
Conrm that the driving lights are aimed to avoid
►
blinding oncoming trafc.
Operate the taillights using the rocker switch Item
12 (Fig. 33) the same way you would the front
headlights.
The switches for switching on the headlights are located
in the cab to the right above the operator‘s seat (Fig. 33).
Switch the headlights on/off with the rocker switches Items
11 and 12.
Front headlights:
Put the rocker switch Item 11 in position 1:•
The headlights switch on. –
Put the rocker switch Item 11 in position 0:•
The headlights switch off. –
Rear headlights:
Fig. 33
Headlight and rotating beacon switches
1211 1514
0 Position
1 Position
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The rotating beacon
Use the yellow rotating beacon according to local
regulations.
(optional equipment)
If you want to use a rotating beacon, mount it on the fastener
provided (Fig. 5).
The switch for operating the rotating beacon is located in
the cab above the operator’s seat (Fig. 33).
Put the rocker switch Item 15 in position 1:•
The rotating beacon switches on. –
Put the rocker switch Item 15 in position 0:•
The rotating beacon switches off. –
Rear window heating
The loader has a heated rear window. With this heater, you
can keep the rear window free of ice in cold weather.
The switch for switching on the rear window heater is located
in the cab above the operator‘s seat (Fig. 33). Switch the
rear window heater on/off with the rocker switch Item 14.
Move the rocker switch Item 14 into position 1:•
The rear window heater is switched on. –
Move the rocker switch Item 14 into position 0:•
The rear window heater is switched off. –
OPER ATING A ND OPE RATIO N
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Ventilation and heating of the cab5.2.4
Ventilation
Ventilate the cab by means of the fan with the heating
switched off, or by means of the doors and windows. The
doors and windows must be locked in open condition (Fig.
22 and 23):
Heating
Temperature
Use the left regulator Item W to adjust the temperature
continuously (Fig. 34):
Turn the left regulator Item W to the left:•
The temperature rises. –
Turn the left regulator Item W to the left:•
The temperature decreases. –
Fan
Adjust the fan by turning the right regulator Item G (Fig. 34).
The fan speed can be switched to three levels:
Level »0« – Fan »OFF«•
Level »1« – Low speed.•
Level »2« – Medium speed.•
Level »3« – High speed.•
Fig. 34
Heating controller
W
G
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Ventilation outlets
You can use the outlets (Fig. 35) to control air ow into cab.
In cold weather, warm air supply keeps the windows free of
ice and heats the cab in the process.
Fig. 35
Ventilation outlets
Air conditioning system
The air conditioning system is switched on and off using
the rocker switch adjacent to the steering wheel on the
right (Fig. 36).
(optional equipment)
NOTICE
Place the air conditioning system into operation at
least once per month to maintain its functioning.
Fig. 36
Rocker switch for
air conditioning
system
OPER ATING A ND OPE RATIO N
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Perform the 1. »Before entering the cab« checks prior to
starting the engine (see the chapter »Operation«).
Adjust the operator’s seat and the steering column as
2.
needed.
Adjust the rear view mirror / exterior mirror.3.
Put on your 4. seat belt.
Before starting the engine5.2.5
Before starting the engine:
Make sure that no one is on or near the load-
•
er.
Keep the operating elements clean and dry.•
Remove or tighten all loose objects in the
•
cab.
Make sure that the cab windows and exterior
•
mirrors are clean.
While in the operator’s seat, position the exterior
•
mirrors so that you have a good view of the area
immediately behind the loader.
Make sure that all safety devices are tted, all •
tools have been removed after repairs, and the
enclosure is closed.
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Starting the engine5.2.6
Check that no one is in the loader‘s danger
•
area.
Do not use ether as a starting aid.•
Do not use the loader if the »starter inhibitor«
•
does not function.
Only start the loader from the operator’s seat.•
Due to the high viscosity in the hydraulic sys-
•
tem at temperatures below 0°C (32°F), major
machine damage can occur when the speed is
increased immediately.
Let the engine run at a low speed at tempera-•
tures below 0°C (32°F) until the hydraulic uid
is warm enough to permit smooth responsive
operation.
The lower the outside temperature, the longer •
the warm-up phase.
Observe the hydrolter‘s pressure display.•
Do not under any circumstances tow-start the •
loader to start the engine. This could damage
the hydraulic system.
Turn off the engine immediately if the warning •
lights do not go out when the engine is running.
Have the malfunction rectied immediately. Do
•
not use the loader again until the malfunction
has been rectied.
Do not suddenly turn off the engine from full
•
load, but rather allow it to idle for 3 minutes
before turning it off it to equalize the temperature.
OPER ATING A ND OPE RATIO N
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Push the foot accelerator.1.
Starting:2.
Put in the key - level 0 = no operating voltage.•
Turn the key to the right - level I = operating voltage;•
The indicator lights (oil pressure, alternator) must be
illuminated
Turn the key to the right against spring pressure.•
Level II = Preheating
• Turn the key further to the right against spring pressure
- level III = start.
Let go of the key as soon as the engine starts - the
•
key will return to level I - and the indicator lights will go
out.
Check if all the indicator lights have gone out, correct
3.
any possible malfunctions before driving off with the
loader.
Description of the starting process
Use the starting key to start the loader‘s engine (Fig. 37).
Fig. 37
Starting switch
I
0
II
III
OPER ATING A ND OPE RATIO N
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If the engine does not start
Attempt to start the loader for a maximum of 20 sec-
•
onds.
Wait one minute.•
Repeat the starting process.•
If the engine will not start after two attempts, look for
•
the cause in the malfunction table (»Troubleshooting
and emergency maintenance«) or contact a specialist
garage.
It is absolutely not possible to start the engine by
tow-starting the loader. This could damage the hydraulic system.
Preheating
You can preheat the engine to make the starting process
at lower temperatures easier.
The heating process is automatically activated when
1.
level I is switched on.
The heater indicator light Item 1 (Fig. 132. ) lights up.
Start the engine at level III as soon as the heater indica-
3.
tor light goes out.
OPER ATING A ND OPE RATIO N
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Propulsion operation5.3
Description of the propulsion hydraulics
See »Hydraulics« section of 3.1 Technical Description on
page 40.
Preparation for travel in public trafc5 . 3.1
Secure the attachment:1.
Ensure that the bucket has been emptied and has been
–
lowered to transport position.
Put the tooth guard on the bucket. –
Check the lighting system, and if applicable, the function
2.
of the rotating beacon.
Switch on the headlights.
Adjust the attachment height for clearance with the road
3.
surface, but not more than necessary for safe transport
to avoid visibility restrictions and reduced stability.
Do not travel with the loader arms completely raised to 4.
avoid collision with overhead objects such as viaducts
and electrical power lines.
After adjusting the loader arm height, engage the travel
5.
lock to prevent unintentional control activation.
Conrm that the seat belt is properly adjusted.6.
Survey the surrounding area to ensure that moving into
7.
trafc can be done safely.
Before you start travel, make sure that the ma-•
chine complies with the relevant local regulations.
Fork prongs of pallet forks must be dismantled •
before undertaking trips in public trafc.
OPER ATING A ND OPE RATIO N
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Travel speed5.3.2
WARNING
Personal injury hazard from tipping or roll-over
incidents.
To avoid tipping and roll-over incidents:
Keep the loader lift arms and bucket load as
►
low as practical
Keep the loading site level. ►
match the speed to working conditions to main-
►
tain control of the machine
Constantly survey the work area for obstruc-
►
tions, vehicles and people to avoid collisions
and runover incidents.
All functions of the multi-function lever only works
if the operator has attached the seat belt rmly and
comfortably around the lower torso.
Indicator lights will indicate the travel directions
and gears selected.
When the parking brake is engaged the loader‘s
drive is switched off (driving lock). This is shown
by the illuminated parking brake indicator. It is not
possible to travel until the parking brake has been
released and the indicator light has gone out.
OPER ATING A ND OPE RATIO N
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Changing travel directions
Use the slide switch Item 1 (Fig. 38) to change the loader‘s
travel direction. After the engine has been started, the gear
changer is in neutral position.
Travel direction switch in middle position:•
Gear changer in Neutral –
Push the travel direction switch forward:•
The indicator light –»15« (Fig. 13, page 50) is illuminated.
The loader travels forward.
Push the travel direction switch back:•
The indicator light –»16« (Fig. 13, page 50) is illuminated.
The loader travels in reverse.
WARNING
Personal injury and machine damage hazards from
abrupt directional changes. Actuating the direction
switch when the loader is moving will cause the
moving loader to change direction abruptly.
Do not change the travel direction switch posi- ►
tion when the loader is moving in either forward
or reverse.
Before and after changing direction with the
►
loader stopped, conrm that the indicator lights
are in agreement with the intended direction
selected.
If the direction control does not respond or the ►
indicator light does not illuminate, move the machine to a safe location, lower the loader arms
until the attachment is resting on the ground,
stop the engine and inform the supervisor of a
service need.
Do not operate the loader until a technician
►
has restored the function before operating the
machine.
Be careful when traveling in snowy and icy conditions. Reduce your travel speed considerably in
the event of bad weather.
If the loader is equipped with the optional equipment »Backup alarm for reverse drive«, a backup
alarm sounds when reverse gear is engaged. The
sound is to warn persons who are in the vicinity of
the loader that the loader is going into reverse.
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Changing speeds
The loader has an overdrive and a crawler gear. Use the
button item 2 (Fig. 38) to shift the loader‘s gears. After starting the engine, overdrive is automatically activated.
Press the button:•
The loader shifts from overdrive to crawler gear. –
Indicator light »14« (Fig. 13 ,page 50) lights up.
Press the button again:•
The loader shifts from crawler gear to overdrive. –
Indicator light »13« (Fig. 13 ,page 50) lights up.
12V
2
1
Fig. 38
Changing direction
1
2
OPER ATING A ND OPE RATIO N
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Braking and stopping
To change the traveling speed independently of the engine speed, you can push the braking-inching pedal on the
operator’s platform next to the steering column. The rst
part of the pedal‘s path adjusts the travel back down, then
the brake system is actuated. Pushing the braking-inching
pedal allows you to continuously reduce the pump ow
rate until the loader has come to a halt without wearing out
the material. This allows you to also travel very slowly at a
high engine speed.
Reduce the loader‘s traveling speed by decreasing the •
engine speed.
To brake the loader, step on the braking-inching ped-
•
al.
To stop, step on the braking-inching pedal until the loader
•
has come to a stop.
Shift to neutral.•
Pull the lever for the parking brake.•
Loader travel
Release the parking brake after the engine has warmed
•
up.
The handbrake indicator light will go off. The loader is
–
ready to travel.
Select the travel direction by actuating the travel direc-•
tion switch.
The indicator light shows the travel direction selected.
–
You can travel.
Push the accelerator.•
The loader will be brought up to speed smoothly. –
The loader‘s traveling speed is proportional to the accelerator‘s displacement.
low engine speed = low traveling speed•
high engine speed = high traveling speed•
p
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Changing the travel direction Stopping and parking5.3.3
Reduce the travel speed until the loader has come to
1.
a halt.
Move the travel direction switch in the other direction.2.
Push the accelerator so that the loader starts moving.3.
Stop the machine in a safe location out of the
•
trafc ow pattern and on rm ground.
Lower the loader arms with bucket or attach-
•
ment until resting on the ground.
Remove the starting key before leaving the op-
•
erator seat.
WARNING
Personal injury and machine damage hazards from
abrupt directional changes. Actuating the direction
switch when the loader is moving will cause the
moving loader to change direction abruptly.
Do not change the travel direction switch posi- ►
tion when the loader is moving in either forward
or reverse.
It is not necessary to depress the inching pedal to
the end of the movement every time you change
direction.
Bring the loader smoothly to a halt by easing up
on the accelerator or actuating the braking-inching
pedal and secure it as described in section 9 page
137 »Securing the loader«.
OPER ATING A ND OPE RATIO N
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Work operation5.4
Before starting to work with the loader:
Survey the work area to determine if people,
•
vehicles and obstacles are in the immediate
work area. Do not star t work until the work area
is clear.
Constantly survey the area during working op-•
eration to avoid collision with people, vehicles
and obstacles that may inadvertently enter the
loader work area.
Verify that all controls are working correctly and
•
the indicator lights are functioning. Move the
lift arm and attachment hydraulics to assure
smooth control response.
Jerky, spongy or delayed control response may
•
indicate that air has entered the hydraulic system. Cycle the hydraulic system a few times. If
the controls become smooth, the air has been
eliminated from the system. If the problem persists, do not operate the machine in this condition. Advise the supervisor and have a technician determine the source of air entrainment.
Inspect attachments to conrm they are in ser-•
viceable condition and are properly connected
to the loader arms.
In the event of power loss (failure of the engine and/
or driving or working hydraulics), lower the loader lift
arms to the ground immediately and relieve the control circuits and hydraulic lines of pressure. Read
section 7 page 133 »Lowering loader arms«.
OPER ATING A ND OPE RATIO N
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Each time before starting work
Examine the loader for visible defects prior to each work
•
shift.
Check the functioning of the operating equipment.•
Check the functioning of the brakes and warning de-
•
vices.
Repor t any defects to the super visor and, when changing
•
shifts, to the operator taking your place.
Perform the checks described in sections • 5.1 (page 58)
and 5.2.5 (page 80).
OPER ATING A ND OPE RATIO N
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Operating lever for Loader lift arms5 .4 .1
Use the multi-function lever to control the movements of the
loader lift arms Item A (Fig. 39). The multi-function lever is
located on the right next to the operator’s seat.
Keep the loader lift arms and attachment as low
•
as practical when traveling. This improves visibility and stability, and reduces the risk of striking overhead objects such as power lines.
Do not activate oat control of the loader arms •
until the bucket or attachment is in contact with
the ground or surface to be back dragged. En-
gaging oat with the lift arms raised will cause
rapid descent of the lift arms.
Do not engage the loader controls unless
•
seated in the operator seat with the seat belt
fastened.
Operate the loader with smooth steady control •
motion. Rapid and jerky control motion is inef-
cient and will cause operator fatigue and cause
potential harm to the loader.
Do not leave the operator seat until the loader •
lift arms and attachment have been lowered to
the ground.
The loader lift arms oat position is located on the
»Lower« and »Tilting out« function. When
the multi-function lever is released, it automatically returns to the neutral position (except when
in oat position).
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Float position ( )
Press the multi-function lever Item A (Fig. 39) forward
•
across the resistance until it engages:
The oat position engages. –
Pull back the multi-function lever Item A across the re-•
sistance:
The oat position disengages. –
Loader lift arms
Pull the multi-function lever Item A rearwards:•
The loader lift arms are raised. –
Pull the multi-function lever Item A forwards:•
The loader lift arms are lowered. –
Attachment
Pull the multi-function lever Item A to the left:•
The attachment curls upward for loading. –
Pull the multi-function lever Item A to the right:•
The attachment curls downward to dump. –
Fig. 39
Operating lever for
loader lift arms
A
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Before traveling from worksite to worksite over •
extended distances, engage the loader lift arm
lock after selecting the height for the travel arms
for the travel segment.
Do not release the loader lift arm lock until start-
•
ing the work cycle, or after parking the loader
and prior to lowering the lift arms to the ground
with the attachment.
The loader lift arm can be secured against unintentional operation by means of a locking mechanism.
If you have switched on the locking mechanism,
the loader lift arms will not move if the loader controls are moved. When the locking mechanism is
switched on, the control lamp in the switch lights
up (Fig. 40), and it is impossible to activate the
loader lift arm.
Loader lift arms locking system5.4.2
Activate the loader lift arms locking system by switching the
rocker switch (Fig. 40).
Switch the rocker switch (Fig. 40) to position 1:•
The locking system is switched on. –
Switch the rocker switch (Fig. 40) to position 0:•
The locking system is switched off. –
Fig. 40
Switch for the locking mechanism of
the loader lift arms
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You can activate the loader lift arms hydraulic connections
(Fig.43) using the control lever for the optional hydraulics
item Z (Fig.41).
You can also activate the hydraulic locking mechanism of
the quick-change system for the attachments with the control
lever for the optional hydraulics (Fig. 41).
A three-way valve (Item H) is on the loader lift arms for
toggling between the functions (Fig. 42).
Activating the optional hydraulics5.4.3
Activating the optional hydraulics using the
control lever
Fig. 41
Operating lever
for the optional
hydraulics
R
Z
L
Place the optional hydraulic control in neutral when
the system is not required. This is necessary to
avoid over heating the hydraulic system and improve
fuel economy.
Clean the quick connecting ttings carefully before
connecting the optional hydraulic system ttings
together. This will avoid introducing contaminants
into the system that can cause damage to the hydraulic components. Keep connections covered
when not in use.
Avoid damage to the three-way valve (Fig. 42). Do
not switch this valve when it is under pressure.
Depressurize attached optional hydraulics before
switching the valve.
OPER ATING A ND OPE RATIO N
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If the valve lever is set at »Hydraulic locking mechanism«,
you can actuate the hydraulic locking mechanism via the
control lever for the optional hydraulics Item Z (Fig. 41):
Move the control lever for the optional hydraulics back-•
wards (L):
The tool attachment is unlocked. –
Move the control lever for the optional hydraulics for-
•
wards (R):
The tool attachment is unlocked. –
If the valve lever is set to »Hydraulic locking mechanism«,
you can actuate the loader lift arms‘s hydraulic connections
(Fig. 43) via the control lever for the optional hydraulics
Item Z (Fig. 41).
Move the control lever for the optional hydraulics back-•
wards:
The connection on the left is the pressure side, the one
–
on the right is for return ow.
Move the control lever for the optional hydraulics for-
•
wards:
The connection on the right is the pressure side, the
–
one on the left is for return ow.
Fig. 42
Three-way valve
H
Fig. 43
Hydraulic connections
L R
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Detent mechanism for the optional hydraulics
This function allows you to operate the optional hydraulic
connections in continuous use. This function is necessary
for certain attachments powered by a hydraulic motor that
necessitates continuous use (e.g. broom). Then you do not
have to constantly hold the control lever for the optional
hydraulics.
Move the control lever for the optional hydraulics for-
•
wards past normal operation position:
The lever will be locked, providing continuous hydraulic
–
pressure and ow.
NOTICE
Overheated hydraulic oil can damage the machine.
Make sure that the control lever for the optional
hydraulics is always in »zero position« when the
detent mechanism is not required.
OPER ATING A ND OPE RATIO N
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Activating the optional hydraulics using the button
You can activate the hydraulic connections on the loader lift
arms (Fig. 43) using the buttons for the optional hydraulics
Item 1 and Item 2 (Fig. 44).
You can also activate the hydraulic locking mechanism of
the quick-change system for the attachments with the buttons for the optional hydraulics (Fig. 44).
A three-way valve, item H, is located on the loader lift arms
to allow toggling between the functions (Fig. 42).
If the detent mechanism of the optional control lever
is engaged, it is not possible to activate the optional
hydraulics with the button.
If the lever of the valve is set to »Hydraulic locking mechanism«, you can activate the hydraulic locking mechanism
via the buttons for the optional hydraulics, Item 1 and Item
2 (Fig. 44):
Activate the button for optional hydraulics Item 1 (Fig.
•
44):
The tool attachment is locked. –
Activate the button for optional hydraulics Item 2 (Fig.
•
44):
The tool attachment is unlocked. –
If the valve lever is set to »Hydraulic locking mechanism«,
you can actuate the loader lift arms‘s hydraulic connections
via the buttons for the optional hydraulics (Fig. 44).
Activate the button for optional hydraulics Item 1:•
The left-hand connection is for the pressure side, the
–
right-hand is for the return line.
Activate the button for optional hydraulics Item 2:•
The right-hand connection is for the pressure side, the –
left-hand is for the return line.
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