New Holland LW50 User manual

Wheel Loaders LW50
SERVICE
MANUAL

©1999 NEW HOLLAND CONSTRUCTION
PROPRIETARY NOTICE
The contents of this manual are proprietary data of New Holland Construction. Reproduction or
use of any part for other than the operation and maintenance of New Holland Construction
equipment is permissible only if expressly authorized in writing by New Holland Construction.
Additional copies may be obtained from your New Holland Construction Dealer. Address
requests for copies to your Dealer and refer to the publication number appearing on the
bottom of the manual cover.
COMPANY POLICY
Company policy, which is one of continuous improvement, reserves the right to change prices
and to make changes in design and specification at any time without notice and without
obligation to modify units previously built.
All data given in this book is subject to production variations. Dimensions and weights are
approximate only and the illustrations do not necessarily show machines in standard condition.
For exact information about any particular machine please consult your New Holland
Construction Dealer.
PARTS AND ACCESSORIES
Genuine parts and accessories have been specifically designed for these machines.
We would like to point out that “non-genuine” parts and accessories have NOT been examined
and released by the Company. The installation and or use of such products could have
negative effects upon the design characteristics of your machine and thereby affect its safety.
The company is not liable for any damage caused by the use of “non-genuine” parts and
accessories.
MODEL CODES
The range of machines listed may not be available in all countries or markets therefore, for the
latest information consult your local New Holland Construction Dealer.
MODEL ENGINE TYPE - H.P.
LW50
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©1999 NEW HOLLAND CONSTRUCTION
OWNER ASSISTANCE
We at New Holland and your New Holland dealer want you to be completely satisfied with your
investment. Normally any problems with your equipment will be handled by your dealer's Service
Department. Sometimes, however, misunderstandings can occur. If your problem has not been
handled to your satisfaction, we suggest the following.
1. Contact the owner or General Manager of the dealership, explain the problem, and request
assistance. When additional assistance is needed, your dealer has direct access to our office.
2. If you cannot obtain satisfaction by doing this, contact the New Holland Construction office and
provide them with:
- Your name, address, and telephone number
- Machine model and serial number
- Dealership name and address
- Machine purchase date and amount of use
- Nature of problem
NEW HOLLAND CONSTRUCTION
245 E North Ave
Carol Stream, IL 60188
Ph # [phone]
When contacting New Holland, be aware that your problem will likely be resolved in the dealership
using the dealer's facilities, equipment, and personnel. So it is important that your initial contact
be with the dealer.
SPARE PARTS
To maintain operating efficiency, use NEW HOLLAND original spare parts.
When ordering parts, give the following information:
- Machine model
- Machine and engine serial numbers
- Part number from the Parts Catalog
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©1999 NEW HOLLAND CONSTRUCTION
TO THE OWNER:
The warranty coverage that is extended to your machine is explained in the Warranty and
Limitation of Liability form. Your dealer will provide you with a copy of the warranty and retain a
copy which you have signed. After you read the warranty, ask your dealer to explain any points
that you may not understand.
The machine was designed to power and propel itself. It is intended to move material in the
normal and customary applications.
Do not modify or alter or permit anyone else to modify or alter this machine or any of its com-
ponents mechanical function with first consulting an authorized New Holland Construction
dealer. If you have any questions regarding machine modifications, contact New Holland
Construction, 245 E. North Ave., Carol Stream, IL 60188.
Your safety and the safety of those around you depend upon the care and good judgment you
use while operating this equipment. Read the safety precautions carefully.
After you have operated the machine for 50 hours, take your machine and this manual to your
selling dealer. He will perform the factory recommended 50-hour service. You will be respon-
sible for the cost of lubricants, fluids, filters and other items replaced as part of normal
maintenance. Prior to taking the machine to your selling dealer for service, it is recommended
that you contact them to determine any other charges for which you may be responsible.
All data given in this book is subject to product variations. Dimensions and weights are ap-
proximate only and the illustrations do not necessarily show machines in standard condition.
For exact information about any particular machine, please consult your New Holland Con-
struction dealer.
CAUTION: THIS SYMBOL IS USED THROUGHOUT THIS BOOK WHENEVER
PERSONAL SAFETY IS INVOLVED. TAKE TIME TO READ AND FOLLOW THE
INSTRUCTIONS. BE CAREFUL!
CAUTION: PICTURES IN THIS MANUAL MAY SHOW PROTECTIVE SHIELDING OPEN
OR REMOVED TO BETTER ILLUSTRATE A PARTICULAR FEATURE OR
ADJUSTMENT.
BE CERTAIN, HOWEVER, TO CLOSE OR REPLACE ALL SHIELDING BEFORE
OPERATING THE MACHINE.
IMPROVEMENTS
New Holland Construction is continually striving to improve its products. We reserve the right
to make improvements or changes when it becomes practical and possible to do so, without
incurring any obligation to make changes or additions to the equipment sold previously.
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©1999 NEW HOLLAND CONSTRUCTION
PRECAUTIONARY
STATEMENTS
PERSONAL SAFETY
Throughout this manual and on machine decals, you will find precautionary statements
(“CAUTION”, “WARNING”, and “DANGER”) followed by specific instructions. These
precautions are intended for the personal safety of you and those working with you. Please
take the time to read them.
CAUTION: THE WORD “CAUTION” IS USED WHERE A SAFE BEHAVIORAL
PRACTICE ACCORDING TO OPERATING AND MAINTENANCE INSTRUCTIONS AND
COMMON SAFETY PRACTICES WILL PROTECT THE OPERATOR AND OTHERS
FROM ACCIDENT INVOLVEMENT.
WARNING: THE WORD WARNING DENOTES A POTENTIAL OR HIDDEN HAZARD
WHICH HAS A POTENTIAL FOR SERIOUS INJURY. IT IS USED TO WARN
OPERATORS AND OTHERS TO EXERCISE EVERY APPROPRIATE MEANS TO AVOID
A SURPRISE INVOLVEMENT WITH MACHINERY.
DANGER: THE WORD “DANGER” DENOTES A FORBIDDEN PRACTICE IN
CONNECTION WITH A SERIOUS HAZARD.
FAILURE TO FOLLOW THE “CAUTION”, “WARNING”, “DANGER”, AND “STOP”
INSTRUCTIONS MAY RESULT IN SERIOUS BODILY INJURY OR DEATH.
MACHINE SAFETY
Additional precautionary statements (“ATTENTION” and “IMPORTANT”) are followed by spe-
cific instructions. These statements are intended for machine safety.
ATTENTION: The word “ATTENTION” is used to warn the operator of potential machine
damage if a certain procedure is not followed.
IMPORTANT: The word “IMPORTANT” is used to inform the reader of something he needs
to know to prevent minor machine damage if a certain procedure is not followed.
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©1999 NEW HOLLAND CONSTRUCTION
SAFETY RULES
This symbol is your safety alert sign. It means ATTENTION! BECOME ALERT! YOUR SAFETY
IS INVOLVED!
Read and heed all safety instruction carrying the signal words WARNING and DANGER.
STUDY THE OPERATION AND MAINTENANCE INSTRUCTION MANUAL THROUGHLY
BEFORE STARTING, OPERATING, MAINTAINING, FUELING OR SERVICING THIS
MACHINE.
MOST ACCIDENTS ARE CAUSED BY FAILURE OF SOME INDIVIDUAL TO FOLLOW SIMPLE
AND FUNDAMENTAL SAFETY RULES OR PRECAUTION. FOR THIS REASON MOST
ACCIDENTS CAN BE PREVENTED BY RECOGNIZING THE REAL CAUSE AND DOING
SOMETHING ABOUT IT BEFORE ACCIDENT OCCURS. REGARDLESS OF THE CARE
USED IN THE DESIGN AND CONSTRUCTION OF ANY TYPE OF EQUIPMENT THERE ARE
MANY CONDITIONS THAT CAN'T BE COMPLETELY SAFEGUARDED AGAINST WITHOUT
INTERFERING WITH REASONABLE ACCESSIBILITY AND EFFICIENT OPERATION.
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©1999 NEW HOLLAND CONSTRUCTION
CALIFORNIA
PROPOSITION 65 WARNING
Diesel engine exhaust and some of its
constituents are know to the State of
California to cause cancer, birth defects,
and other reproductive harm.
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©1999 NEW HOLLAND CONSTRUCTION
SAFETY PRECAUTION INFORMATION
UNSAFE OPERATING PRACTICES AND IMPROPER USE OF THE MACHINE AND ITS ATTACHMENTS ON
THE PART OF THE OPERATOR OR SERVICE TECHNICIAN CAN RESULT IN INJURIES. OBSERVE THE
FOLLOWING SAFETY PRECAUTIONS AT ALL TIMES:
1. FOR SERVICING, THE MACHINE SHOULD BE ON LEVEL TERRAIN, ENGINE STOPPED WITH THE
WHEELS BLOCKED OR THE ENTIRE MACHINE SOLIDLY SUPPORTED WITH THE WHEELS OFF THE
GROUND BEFORE SERVICING ANY COMPONENT OF THE DRIVETRAIN.
2. FOR SERVICING UNDER THE MOVABLE EQUIPMENT, SUCH AS OPERTOR’S SEAT, ENGINE HOODS,
ETC. MOVE THE EQUIPMENT ASSEMBLY TO THE LATCHED POSITION AND SECURELY LATCH.
3. DO NOT OPERATE THE MACHINE UNLESS ALL MOVABLE EQUIPMENT IS LATCHED IN THE
OPERATE POSITION.
4. DO NOT SERVICE THE MACHINE WITH A RAISED HYDRAULIC EQUIPMENT UNLESS THE HYDRAULIC
EQUIPMENT IS RESTING ON LOCK PINS OR CYLINDER LOCKING TOOLS OR FIXTURES.
5. DO NOT SERVICE THE MACHINE WITH THE ENGINE RUNNING UNLESS THE MACHINE IS PROPERLY
AND SECURELY SUPPORTED WITH ALL FOUR WHEELS OFF THE GROUND.
6. USE CAUTION WHEN SERVICING THE UNIT AROUND MOVING PARTS.
7. DO NOT TILT ANY MOVABLE EQUIPMENT WITHOUT PROPER INSTRUCTION.
8. DO NOT TILT ANY MOVABLE EQUIPMENT WITHOUT USING THE PROPER TOOLS.
9. REINSTALL ALL SHIELDS REMOVED FOR SERVICE.
10. NEVER LOOSEN ANY HYDRAULIC CONNECTIONS BEFORE RELIEVING THE PRESSURE IN THE
HYDRAULIC SYSTEM.
11. WEAR EYE PROTECTION SUCH AS GOGGLES, ETC.
12. WEAR EAR PROTECTION SUCH AS EARPLUGS, ETC. WHEN YOU FEEL THE NOISE LEVEL IS
UNCOMFORTABLE.
13. IF ANY SERVICING OR ADJUSTMENTS REQUIRE THE BATTERY TO BE DISCONNECTED,
DISCONNECT THE (-) NEGATIVE GROUND CABLE.
14. WHEN SERVICING ELECTRICAL COMPONENTS, DISCONNECT THE (-) NEGATIVE GROUND CABLE.
15. IF AN ELECTRONIC EQUIPMENT REQUIRES REMOVAL FROM THE DASH AREA OR THE MACHINE,
DISCONNECT THE (-) NEGATIVE GROUND BATTERY CABLE. THIS WILL SHUT OFF POWER TO THE
ELECTRICAL SYSTEM AND PREVENT DAMAGE TO THE ELECTRICAL SYSTEM.
16. IF WELDING IS REQUIRED ON THE MACHINE, DISCONNECT THE (-) NEGATIVE GROUND CABLE.
FAILURE TO DISCONNECT THE BATTERY MAY RESULT IN DAMAGE TO THE ELECTRICAL SYSTEM,
MONITORING SYSTEM AND/OR OTHER ELECTRICAL COMPONENTS.
17. IF WELDING IS REQUIRED ON AN ATTACHMENT, REMOVE THE ATTACHMENT FROM THE MACHINE.
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©1999 NEW HOLLAND CONSTRUCTION
18. GIVE COMPLETE AND UNDIVIDED ATTENTION TO THE JOB AT HAND SO THAT COMPLETE
CONTROL OF THE MACHINE IS MAINTAINED AT ALL TIMES.
19. DRIVE SLOWLY OVER ROUGH GROUND AND ON SLOPES; KEEP ALERT FOR HOLES,
DITCHES AND OTHER IRREGULARITIES THAT MAY CAUSE THE MACHINE TO OVERTURN.
20. AVOID STEEP HILLSIDE OPERATION WHICH COULD CAUSE THE MACHINE TO OVERTURN.
21. NEVER TRANSPORT A LOADED BUCKET AT FULL HEIGHT. OPERATE THE MACHINE WITH
THE LOAD AS LOW AS POSSIBLE UNTIL IT BECOMES NECESSARY TO RAISE THE BOOM
TO DISCHARGE THE LOAD INTO A TRUCK, CONTAINER, ETC.
22. REDUCE SPEED WHEN TURNING SO THERE IS NO DANGER OF OVERTURNING.
23. NEVER DRIVE UP OR BACK UP A HILL OR INCLINE WITH A RAISED BOOM OR THE MACHINE
COULD OVERTURN.
24. ALWAYS LOOK BEHIND YOU BEFORE BACKING UP THE MACHINE.
25. MAINTAIN PROPER FLUID LEVELS TO PREVENT LOSS OF POWER, BRAKING OR OTHER
FUNCTIONS.
26. DO NOT ALLOW PASSENGERS TO RIDE ON THE MACHINE AT ANY TIME.
27. DO NOT ALLOW CHILDREN TO OPERATE THE MACHINE OR RIDE ON THE MACHINE AT ANY
TIME.
28. DO NOT ALLOW ANYONE TO OPERATE OR SERVICE THE MACHINE WITHOUT PROPER
INSTRUCTION.
29. OSHA REQUIRES THAT ALL OPERATORS BE INSTRUCTED ON THE PROPER OPERATION
OF THE MACHINE BEFORE THEY OPERATE THE UNIT.
30. DO NOT OPERATE THE LOADER IN ANY POSITION OTHER THAN WHILE IN THE
OPERATOR’S SEAT WITH THE SEAT BELT SECURELY FASTENED.
31. BEFORE STARTING THE ENGINE, BE SURE THAT ALL OPERATING CONTROLS ARE IN
NEUTRAL AND THE PARKING BRAKE IS ENGAGED.
32. NEVER OPERATE THE ENGINE IN A CLOSED BUILDING WITHOUT ADEQUATE VENTILATION.
33. REFUEL THE MACHINE OUTDOORS WITH THE ENGINE SHUT OFF. REPLACE THE FUEL
CAP SECURELY. USE AN APPROVED FUEL CONTAINER. DO NOT SMOKE WHEN
HANDLING FUEL. AVOID SPILLING FUEL.
34. AFTER OPERATING THE ENGINE, NEVER TOUCH THE MUFFLER, EXHAUST PIPE, ENGINE
OR RADIATOR UNTIL THEY HAVE HAD TIME TO COOL.
35. DRESS APPROPRIATELY – WEAR RELATIVELY TIGHT-FITTING CLOTHING WHEN
OPERATING OR SERVICING THE MACHINE. LOOSE OR TORN CLOTHING CAN CATCH IN MOVING
PARTS OR CONTROLS.
36. BEFORE SERVICING THE MACHINE, OR ANY OF ITS ATTACHED EQUIPMENT, BE SURE
THAT THE ATTACHMENTS ARE LOWERED TO THE GROUND OR ARE SUPPORTED.
37. DO NOT WORK UNDER OVERHANGS, ELECTRIC WIRES, OR WHERE THERE IS DANGER
OF A SLIDE.
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©1999 NEW HOLLAND CONSTRUCTION
38. WEAR AN APPROVED SAFETY HAT WHEN OPERATING THE MACHINE AND WHILE IN ANY WORK
AREA.
39. WHEN DRIVING THE MACHINE ON A ROAD OR HIGHWAY, USE WARNING LIGHTS OR WARNING
DEVICES AS MAY BE REQUIRED BY LOCAL OR STATE GOVERNMENT REGULATIONS. HEADLIGHTS,
WARNING LIGHTS AND SMV SIGNS ARE AVAILABLE THROUGH YOUR NEW HOLLAND DEALER.
40. KEEP THE MACHINE CLEAN. DO NOT ALLOW TRASH, DEBRIS OR OTHER ARTICLES TO ACCUMU-
LATE IN THE CAB, FLOOR OR FOOT CONTROL PEDAL AREA THAT MAY HINDER SAFE MACHINE
OPERATION.
41. NEVER OPERATE THE MACHINE WITH ANY OF THE SHIELDING REMOVED.
42. NEVER OPERATE THE MACHINE WITHOUT WINDOWS AND/OR SCREENS IN PLACE.
43. NEVER EXTEND ANY PART OF THE BODY OUTSIDE OF THE OPERATOR’S AREA.
44. ALWAYS PROPERLY TIE DOWN THE MACHINE TO A TRUCK OR TRAILER BEFORE TRANSPORT.
45. MAKE SURE ALL BYSTANDERS ARE AT A SAFE DISTANCE AWAY FROM THE MACHINE BEFORE
STARTING THE ENGINE.
46. DO NOT ALLOW ANYONE NEAR THE MACHINE WHILE THE ENGINE IS RUNNING AND THE MACHINE
IS OPERATIONAL.
47. WHEN USING THE MACHINE TO CRANE OBJECTS, DO NOT ALLOW ANYONE TO RIDE ON OBJECTS
BEING CRANED.
48. DO NOT USE THE MACHINE AS A WORK PLATFORM FOR SUPPORTING MATERIALS.
49. DO NOT LIFT PERSONNEL OR ALLOW PERSONNEL TO WORK WHILE STANDING IN THE BUCKET
OR ON OTHER ATTACHMENTS. THIS IS NOT A MAN-LIFT.
OSHA REQUIREMENTS NOW MAKE IT THE EMPLOYER’S RESPONSIBILITY TO FULLY INSTRUCT EACH
OPERATOR IN THE PROPER AND SAFE OPERATION OF ALL OPERATIVE EQUIPMENT. BOTH EMPLOYER
AND EMPLOYEE SHOULD THOROUGHLY FAMILIARIZE THEMSELVES WITH THE MACHINE OPERATION.
SOME PICTURES IN THIS MANUAL SHOW SAFETY SHIELDS REMOVED OR OPEN TO SHOW
PARTS BEING SERVICED OR FOR CLARITY. ALL SHIELDS SHOULD BE CLOSED OR RE-
PLACED PRIOR TO OPERATING THE MACHINE.
DANGER!
FASTEN SEAT BELT
BEFORE STARTING ENGINE!
CAUTION!
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PAGE LEFT INTENTIONALLY BLANK

FOREWORD 1..............................................................................................................................................
Using the Technical Handbook 1..............................................................................................................
Servicing and repair 1................................................................................................................................
Warnings and symbols 2............................................................................................................................
Danger in the event of non-obser-vance of the safety instructions 2....................................................
Organizational measures 3........................................................................................................................
Selection and qualification of personnel - basic responsibilities 4........................................................
Safety instructions governing specific operational phases
Standard operation 4..................................................................................................................................
Special work in conjunction with utilization of the machine - maintenance and repairs during operation -
disposal of parts and consumables 5........................................................................................................
Warning of special dangers
Electric energy 6........................................................................................................................................
Gas, dust, steam and smoke 6..................................................................................................................
Hydraulic and pneumatic equipment 7......................................................................................................
Noise 7......................................................................................................................................................
Oil, grease and other chemical substances 7............................................................................................
Transporting and towing - recommissioning 7........................................................................................
Repair work - safety instructions 8............................................................................................................
ACCUMULATORS 9....................................................................................................................................
Safety instructions 9....................................................................................................................................
ENGINE 10....................................................................................................................................................
Engine - repair instructions 10..................................................................................................................
Assisted starting (with jumper cables) - safety instructions 10..............................................................
WELDING OPERATIONS
Welding operations - safety instructions 11................................................................................................

TECHNICAL HANDBOOK LW 50
173179329 01
FOREWORD 2801062
This Technical Handbook (THB) has been writ-
ten with the servicing mechanic in mind and
contains important information required to carry
out repair and servicing procedures.
Read through the Technical Handbook, but also
the Operating Instructions for the NEW HOL-
LAND CONSTRUCTION Wheel Loader before
commencing any servicing or repair work. The
Technical Handbook, as well as the Operating
Instructions and Spare Parts List should be
used as a source of reference and assistance -
even when the user is well acquainted with the
range of NEW HOLLAND CONSTRUCTION
Wheel Loaders.
Using the Technical Handbook allows the exper-
ienced mechanic to carry out repair work in a
correct manner.
Using the Technical Handbook
The Technical Handbook is divided into main and
sub-groups that deal with the machine as actually
delivered. Any auxiliary attachments or optional
upgrading introduced later are not described.
The main table of contents allows to find the
required information quickly.
For the sake of clarity, the illustrations have been
simplified and can therefore differ slightly from the
actual appearance of the machine.
Servicing and repair
Servicing and repair work should be carried out
as soon as possible. This keeps overall servicing
& repair costs to a minimum and increases the
availabilily of the NEW HOLLAND CONSTRUC-
TION Wheel Loader.
During servicing and repair work, always follow
the instructions contained in the Technical
Handbook and Operating instructions.
The NEW HOLLAND CONSTRUCTION After
Sales Service is always available for assistance
and advice.

TECHNICAL HANDBOOK LW 50
27317932901
Warnings and symbols 2732729
The following signs are used in the manual to
designate instructions of particular importance:
Imminent danger involving the risk of
death or of severe injuries.
Precautionary rules and measures de-
signed to protect the machine operator
and other persons from life-threatening
danger or injuries and to prevent exten-
sive damage.
Information and precautionary measures
designed to prevent damage to the ma-
chine or other property.
Danger in the event of non-obser-
vance of the safety instructions
2796843
This wheel loader has been built in accor-
dance with state-of-the-art standards and
the recognized safety rules.
However, operating the machine if a fault
is suspected or has occurred, or carrying
out repair work inexpertly may
- endanger the lives of persons in con-
tact with it
- damage the machine and other prop-
erty.
The wheel loader must be stopped imme-
diately on any damage being suspected
or occurring to ensure that the safety of
the operator, of other persons at the place
of use or of other material property is not
compromised.
All components are carefully co-ordinated.
Trouble-free operation and a long service
life can only be achieved with original
spare parts.

TECHNICAL HANDBOOK LW 50
373179329 01
Organizational measures 2800456
The operating instructions must always be at
hand at the place of use of the machine, e.g. by
stowing them in the tool compartment or tool-box
provided for such purpose.
In addition to the operating instructions, observe
and instruct the user in all other generally ap-
plicable legal and other mandatory regulations
relevant to accident prevention and environmental
protection.
These compulsory regulations may also deal with
the handling of hazardous substances, issuing
and/or wearing of personal protective equipment
or traffic regulations.
The operating instructions must be supplemented
by instructions covering the duties involved in
supervising and notifying special organizational
features, such as job organization, working se-
quences or the personnel entrusted with the
work.
Personnel entrusted with work on the machine
must have read the operating instructions and in
particular the chapter on safety before beginning
work. Reading the instructions after work has be-
gun is too late. This applies especially to persons
working only occasionally on the machine, e.g.
during setting up or maintenance.
Check - at least from time to time - whether the
personnel is carrying out the work in compliance
with the operating instructions and paying atten-
tion to risks and safety factors.
For reasons of security, long hair must be tied
back or otherwise secured, garments must be
close-fitting and no jewellery, such as rings, may
be worn. Injury may result from being caught up
in the machinery or from rings catching on mov-
ing parts.
Use protective equipment wherever required by
the circumstances or by law.
Observe all safety instructions and warnings at-
tached to the machine.
See to it that safety instructions and warnings
attached to the machine are always complete and
perfectly legible.
In the event of safety-relevant modifications or
changes in the behaviour of the machine during
operation, stop the machine immediately and re-
port the malfunction to the competent author-
ity/person.
Never make any modifications, additions or con-
versions which might affect safety without the
supplier's approval. This also applies to the in-
stallation and adjustment of safety devices and
valves as well as to welding work on load-bearing
elements.
Spare parts must comply with the technical re-
quirements specified by the manufacturer. Spare
parts from original equipment manufacturers can
be relied to do so.
Replace hydraulic hoses within stipulated and ap-
propriate intervals, even if no safety-relevant de-
fects have been detected.
Adhere to prescribed intervals or those specified
in the operating instructions for routine checks
and inspections.
For the execution of maintenance work, tools and
workshop equipment adapted to the task on hand
are absolutely indispensable.
The personnel must be familiar with the location
and operation of fire extinguishers.
Observe all fire-warning and fire-fighting proce-
dures.

TECHNICAL HANDBOOK LW 50
47317932901
Selection and qualification of per-
sonnel - basic responsibilities
Any work on and with the machine must be ex-
ecuted by reliable personnel only. Statutory
minimum age limits must be observed.
Employ only trained or instructed staff and set out
clearly the individual responsibilities of the per-
sonnel for operation, set-up, maintenance and re-
pair.
Make sure that only authorized personnel works
on or with the machine.
Define the machine operator's responsibilities -
also with regard to observing traffic regulations -
giving the operator the authority to refuse instruc-
tions by third parties that are contrary to safety.
Do not allow persons to be trained or instructed
or persons taking part in a general training
course to work on or with the machine without
being permanently supervised by an experienced
person.
Work on the electrical system and equipment of
the machine must be carried out only by a skilled
electrician or by instructed persons under the su-
pervision and guidance of a skilled electrician and
in accordance with electrical engineering rules
and regulations.
Work on chassis, brake and steering systems
must be performed by skilled personnel only,
which has been specially trained for such work.
Work on the hydraulic system must be carried out
only by personnel with special knowledge and
experience of hydraulic equipment.
Safety instructions governing
specific operational phases
Standard operation
Avoid any operational mode that might be prejudi-
cial to safety.
Before beginning work, familiarize yourself with
the surroundings and circumstances of the site,
such as obstacles in the working and travelling
area, the soil bearing capacity and any barriers
separating the construction site from public roads.
Take the necessary precautions to ensure that
the machine is used only when in a safe and
reliable state.
Operate the machine only if all protective and
safety-oriented devices, such as removable safety
devices, emergency shut-off equipment, sound-
proofing elements and exhausters, are in place
and fully functional.
Check the machine at least once per working
shift for obvious damage and defects. Report any
changes (incl. changes in the machine's working
behaviour) to the competent organization/person
immediately. If necessary, stop the machine im-
mediately and lock it.
In the event of malfunctions, stop the machine
immediately and lock it. Have any defects recti-
fied immediately.
Start the machine from the driver's seat only.
During start-up and shut-down procedures always
watch the indicators in accordance with the op-
erating instructions.
Before setting the machine in motion, make sure
that nobody is at risk.
Before starting work or travelling with the ma-
chine, check that the braking, steering, signalling
and lighting systems are fully functional.
Before setting the machine in motion always
check that the accessories have been safely
stowed away.
When travelling on public roads, ways and places
always observe the valid traffic regulations and, if
necessary, make sure beforehand that the ma-
chine is in a condition compatible with these reg-
ulations.

TECHNICAL HANDBOOK LW 50
573179329 01
In conditions of poor visibility and after dark al-
ways switch on the lighting system.
Persons accompanying the driver must be seated
on the passenger seats provided for this purpose.
When crossing underpasses, bridges and tunnels
or when passing under overhead lines always
make sure that there is is sufficient clearance.
Always keep at a distance from the edges of
building pits and slopes.
Avoid any operation that might be a risk to ma-
chine stability.
Never travel across slopes; always keep the
working equipment and the load close to the
ground, especially when travelling downhill.
On sloping terrain always adapt your travelling
speed to the prevailing ground conditions. Never
change to a lower gear on a slope but always
before reaching it.
Before leaving the driver's seat always secure the
machine against inadvertent movement and un-
authorized use.
Special work in conjunction with utili-
zation of the machine - maintenance
and repairs during operation - disposal
of parts and consumables
Observe the adjusting, maintenance and inspec-
tion activities and intervals set out in the operat-
ing instructions, including information on the re-
placement of parts and equipment. These
activities may be executed by skilled personnel
only.
Brief operating personnel before beginning spe-
cial operations and maintenance work, and ap-
point a person to supervise the activities.
In any work concerning the operation, conversion
or adjustment of the machine and its safety-ori-
ented devices or any work related to mainten-
ance, inspection and repair, always observe the
start-up and shut-down procedures set out in the
operating instructions and the information on
maintenance work.
Ensure that the maintenance area is adequately
secured.
If the machine is completely shut down for main-
tenance and repair work, it must be secured
against inadvertent starting by:
- removing the ignition key and
- attaching a warning sign.
Carry out maintenance and repair work only if the
machine is positioned on stable and level ground
and has been secured against inadvertent move-
ment and buckling.
To avoid the risk of accidents, individual parts
and large assemblies being moved for replace-
ment purposes should be carefully attached to
lifting tackle and secured. Use only suitable and
technically perfect lifting gear and suspension
systems with adequate lifting capacity. Never
work or stand under suspended loads.
The fastening of loads and the instructing of
crane operators should be entrusted to exper-
ienced persons only. The marshaller giving the
instructions must be within sight or sound of the
operator.

TECHNICAL HANDBOOK LW 50
67317932901
For carrying out overhead assembly work always
use specially designed or otherwise safety-ori-
ented ladders and working platforms. Never use
machine parts as a climbing aid.
Wear a safety harness when carrying out main-
tenance work at greater heights.
Keep all handles, steps, handrails, platforms,
landings and ladders free from dirt, snow and ice.
Clean the machine, especially connections and
threaded unions, of any traces of oil, fuel or
preservatives before carrying out mainten-
ance/repair. Never use aggressive detergents.
Use lint-free cleaning rags.
Before cleaning the machine with water, steam jet
(high-pressure cleaning) or detergents, cover or
tape up all openings which - for safety and func-
tional reasons - must be protected against water,
steam or detergent penetration. Special care must
be taken with electric motors and switchgear
cabinets.
Ensure during cleaning of the machine that the
temperature sensors of the fire-warning and fire-
fighting systems do not come into contact with
hot cleaning agents as this might activate the
fire-fighting system.
After cleaning, remove all covers and tapes ap-
plied for that purpose.
After cleaning, examine all fuel, lubricant, and
hydraulic fluid lines for leaks, loose connections,
chafe marks and damage. Any defects found
must be rectified without delay.
Always tighten any screwed connections that
have been loosened during maintenance and re-
pair.
Any safety devices removed for set-up, main-
tenance or repair purposes must be refitted and
checked immediately upon completion of the
maintenance and repair work.
Ensure that all consumables and replaced parts
are disposed of safely and with minimum envi-
ronmental impact.
Warning of special dangers
Electric energy
Use only original fuses with the specified current
rating. Switch off the machine immediately if trou-
ble occurs in the electrical system.
When working with the machine, maintain a safe
distance from overhead electric lines. If work is to
be carried out close to overhead lines, the work-
ing equipment must be kept well away from them.
Caution, danger! Check out the prescribed safety
distances.
If your machine comes into contact with a live
wire
- do not leave the machine
- drive the machine out of the hazard zone
- warn others against approaching and touching
the machine
- have the live wire de-energized
- do not leave the machine until the damaged
line has been safely de-energized.
The electrical equipment of machines is to be
inspected and checked at regular intervals. De-
fects such as loose connections or scorched ca-
bles must be rectified immediately.
Gas, dust, steam and smoke
Operate internal combustion engines and fuel-
operated heating systems only on adequately
ventilated premises. Before starting the machine
on enclosed premises, make sure that there is
sufficient ventilation.
Observe the regulations in force at the respective
site.
Carry out welding, flame-cutting and grinding
work on the machine only if this has been ex-
pressly authorized, as there may be a risk of
explosion and fire.
Before carrying out welding, flame-cutting and
grinding operations, clean the machine and its
surroundings from dust and other inflammable
substances and make sure that the premises are
adequately ventilated (risk of explosion).

TECHNICAL HANDBOOK LW 50
773179329 01
Hydraulic and pneumatic equipment
Check all lines, hoses and screwed connections
regularly for leaks and obvious damage. Repair
damage immediately. Splashed oil may cause in-
jury and fire.
Depressurize all system sections and pressure
pipes (hydraulic system, compressed-air system)
to be removed in accordance with the specific
instructions for the unit concerned before carrying
out any repair work.
Hydraulic and compressed-air lines must be laid
and fitted properly. Ensure that no connections
are interchanged. The fittings, lengths and quality
of the hoses must comply with the technical re-
quirements.
Noise
During operation, all sound baffles of the machine
must be closed.
Always wear the prescribed ear protectors.
Oil, grease and other chemical sub-
stances
When handling oil, grease and other chemical
substances, observe the product-related safety
regulations.
Be careful when handling hot consumables (risk
of burning or scalding).
Transporting and towing - recom-
missioning
The machine must be towed, loaded and trans-
ported only in accordance with the operating
instructions.
For towing the machine observe the prescribed
transport position, admissible speed and itinerary.
Use only appropriate means of transport and lift-
ing gear of adequate capacity.
The recommissioning procedure must be strictly
in accordance with the operating instructions.