Amco Veba 924NG User manual

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US
SE ER R M
MA
AN NU UA AL L
9
92 24 4N NG G
ORIGINAL INSTRUCTIONS
7844181-00 03/20
subject to change without notice

USER MANUAL
924NG
INDEX
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AWARNINGS ........................................................................................................................ A.1
A.1 PERSONAL PROTECTIVE EQUIPMENT.................................................................................................A.1
A.2MECHANICAL HAZARDS ........................................................................................................................A.2
A.2.1 STRUCTURAL RESISTANCE................................................................................................................... A.2
A.2.2 CRUSHING HAZARD................................................................................................................................ A.4
A.2.3 CUTTING HAZARD ................................................................................................................................... A.5
A.2.4 IMPACT HAZARD ..................................................................................................................................... A.6
A.2.5 OIL LEAK HAZARD ................................................................................................................................... A.7
A.2.6 LOSS OF STABILITY ................................................................................................................................ A.8
A.2.7 SLIPPING AND FALLS............................................................................................................................ A.10
A.3 ELECTRIC SHOCK HAZARD.................................................................................................................A.11
A.3.1 CONTACT WITH LIVE COMPONENTS.................................................................................................. A.11
A.3.2 STATIC ELECTRICITY............................................................................................................................ A.12
A.4 HEAT HAZARDS ....................................................................................................................................A.12
A.4.1 BURNS .................................................................................................................................................... A.12
A.5 NOISE HAZARDS ...................................................................................................................................A.12
A.6 VIBRATION HAZARDS ..........................................................................................................................A.13
A.7 HAZARDS DUE TO TOXIC SUBSTANCES ...........................................................................................A.13
A.8 ERGONOMIC HAZARDS........................................................................................................................A.14
A.8.1 MANUAL OPERATIONS ......................................................................................................................... A.14
A.8.2 VISIBILITY............................................................................................................................................... A.14
A.8.3 HUMAN ERROR...................................................................................................................................... A.14
A.9 UNEXPECTED START-UP AND SWITCH-OFF.....................................................................................A.15
A.10 FAULTS IN SAFETY DEVICES ..............................................................................................................A.15
A.11 COUPLING FAULTS...............................................................................................................................A.17
A.12 HAZARDS DUE TO INCORRECT LIFTING OPERATIONS...................................................................A.19
A.13 HOW TO TRANSPORT THE CRANE.....................................................................................................A.22
A.14 WARNINGS FOR USE WITH MANUAL EXTENSIONS .........................................................................A.23
A.15 WARNINGS FOR USE WITH JIB ...........................................................................................................A.25
A.16 WARNINGS FOR USE WITH BUCKET - GRAPPLE .............................................................................A.26
A.17 WARNINGS FOR USE WITH DRILL ......................................................................................................A.28
BUSER MANUAL.................................................................................................................. B.1
B.1 PREMISE ..................................................................................................................................................B.1
B.2 IDENTIFICATION......................................................................................................................................B.2
B.3 DESCRIPTION AND DOCUMENTATION.................................................................................................B.3
B.3.1 ENCLOSED DOCUMENTATION .............................................................................................................. B.3
B.3.2 MARK ........................................................................................................................................................ B.3
B.3.3 SERVICE CONDITIONS ........................................................................................................................... B.4
B.3.4 MAIN COMPONENTS ............................................................................................................................... B.5
B.4 CONTROLS ..............................................................................................................................................B.6
B.4.1 CONTROL STATIONS .............................................................................................................................. B.6
B.4.2 DESCRIPTION OF CONTROLS ............................................................................................................. B.12
B.4.3 OUTRIGGERS CONTROLS (OPTIONAL) .............................................................................................. B.13
B.4.4 WORK LIGHTS CONTROL SWITCH (NO CE, NO TOP)........................................................................ B.13
B.4.5 EMERGENCY CONTROLS..................................................................................................................... B.14
B.5 SAFETY DEVICES..................................................................................................................................B.16
B.5.1 OVERCENTER VALVES ......................................................................................................................... B.16
B.5.2 EMERGENCY STOP BUTTON ............................................................................................................... B.16
B.5.3 MOMENT LIMITER.................................................................................................................................. B.17
B.5.4 LOCKING DEVICES FOR STABILIZER EXTENSIONS.......................................................................... B.18
B.5.5 LOCKING DEVICE FOR TURNING STABILIZER LEGS ........................................................................ B.19
B.5.6 SLEWING LIMITERS............................................................................................................................... B.20
B.5.7 LOCKING DEVICE FOR MANUAL EXTENSIONS.................................................................................. B.20
B.6 GAUGES AND INDICATORS .................................................................................................................B.21
B.6.1 GAUGES ON OIL TANK.......................................................................................................................... B.21
B.6.2 LOAD INDICATORS................................................................................................................................ B.22
B.6.3 LEVEL INDICATOR................................................................................................................................. B.23
B.6.4 OPERATING HOURS COUNTER (NO CE, NO TOP)............................................................................. B.24
B.6.5 VISUAL-AUDIBLE WARNING DEVICE IN CABIN .................................................................................. B.24
B.7 OPERATING THE CRANE .....................................................................................................................B.25
B.7.1 PRELIMINARY CHECKS BEFORE OPERATION................................................................................... B.25
B.7.2 START-UP OPERATION......................................................................................................................... B.25
B.7.3 HOW TO DEPLOY THE STABILIZERS WITH MANUALLY OPERATED EXTENSIONS ....................... B.26
B.7.4 HOW TO DEPLOY THE STABILIZERS WITH HYDRAULICALLY OPERATED EXTENSIONS ............. B.29
B.7.5 HOW TO ROTATE DOWNWARDS THE MANUAL TURNING STABILIZER LEGS................................ B.32
B.7.6 HOW TO DEPLOY THE AUTOMATIC TURNING STABILIZERS ........................................................... B.34

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B.7.7 OPENING PROCEDURE ........................................................................................................................ B.38
B.7.8 HOW TO READ THE LOAD CHART....................................................................................................... B.39
B.7.9 LIFTING OPERATIONS .......................................................................................................................... B.39
B.7.10 CLOSING PROCEDURE......................................................................................................................... B.40
B.7.11 HOW TO FOLD THE STABILIZERS WITH MANUALLY OPERATED EXTENSIONS ............................ B.42
B.7.12 HOW TO FOLD THE STABILIZERS WITH HYDRAULICALLY OPERATED EXTENSIONS .................. B.44
B.7.13 HOW TO ROTATE UPWARDS THE MANUAL TURNING STABILIZER LEGS...................................... B.46
B.7.14 HOW TO FOLD THE AUTOMATIC TURNING STABILIZERS ................................................................ B.48
B.7.15 USE WITH MANUAL EXTENSIONS ....................................................................................................... B.51
B.7.16 USE WITH JIB ......................................................................................................................................... B.52
B.7.17 USE WITH BUCKET-GRAB .................................................................................................................... B.56
B.7.18 COMPULSORY CHECKS BEFORE LEAVING THE WORK PLACE ...................................................... B.56
B.8 USE UNDER SPECIAL SERVICE CONDITIONS ...................................................................................B.57
B.8.1 STABILIZERS ON SOFT SURFACE....................................................................................................... B.57
B.8.2 LOW-TEMPERATURE ENVIRONMENTS .............................................................................................. B.58
B.8.3 HIGH BASE INCLINATION ..................................................................................................................... B.58
B.8.4 IN-SERVICE WIND.................................................................................................................................. B.59
CMAINTENANCE.................................................................................................................. C.1
C.1 WARRANTY TERMS ................................................................................................................................C.1
C.2 ORDINARY MAINTENANCE ....................................................................................................................C.1
C.2.1 GREASING................................................................................................................................................C.1
C.2.2 FILLING UP THE OIL TANK......................................................................................................................C.3
C.2.3 CLEANING THE CRANE...........................................................................................................................C.3
C.2.4 SPECIAL PRECAUTIONS FOR CHROME-PLATED SURFACES............................................................C.3
C.3 PLANNED AND EXTRAORDINARY MAINTENANCE .............................................................................C.4
C.4 TAKING THE CRANE OUT OF SERVICE................................................................................................C.4
C.4.1 DISASSEMBLY .........................................................................................................................................C.4
C.4.2 STORAGE .................................................................................................................................................C.4
C.4.3 DISPOSAL.................................................................................................................................................C.4
DTECHNICAL SHEET .......................................................................................................... D.1
D.1 CRANE'S TECHNICAL DATA ..................................................................................................................D.2
D.2 WINCH SETTINGS....................................................................................................................................D.4
D.3 TOTAL WEIGHTS.....................................................................................................................................D.4
D.4 OVERALL DIMENSIONS..........................................................................................................................D.5
D.5 BASE DIMENSIONS AND MOUNTING BOLTS.......................................................................................D.9
D.6 INSTALLATION TYPE NUMBER ...........................................................................................................D.10
D.7LIFTING HEIGHT CLOSE TO THE COLUMN ........................................................................................D.11
D.8 LOAD CHARTS FOR USE WITH HOOK/TOOL .....................................................................................D.12
D.9 LOAD CHARTS FOR TI2 WINCH IN SINGLE LINE...............................................................................D.22
D.10 LOAD CHARTS FOR TI1 WINCH IN SINGLE LINE...............................................................................D.29
D.11 CENTERS OF GRAVITY AND TEST LOADS ........................................................................................D.32
D.12 HOOK DATA ...........................................................................................................................................D.33
D.13 LOAD ATTACHMENT.............................................................................................................................D.35
D.14 HYDRAULIC SYSTEM ............................................................................................................................D.36
D.15 OIL COOLER ..........................................................................................................................................D.38
D.16 ADDITIONAL STABILIZERS ..................................................................................................................D.40
D.17 RECOMMENDED ADDITIONAL LIFTING TOOLS.................................................................................D.41
EANNEXES ............................................................................................................................E.1
E.1 HYDRAULIC SCHEMATICS ..................................................................................................................... E.1
E.2 ELECTRIC SCHEMATICS ...................................................................................................................... E.23
E.3 SAFETY SIGNS ...................................................................................................................................... E.29
E.4 TIGHTENING TORQUES........................................................................................................................ E.32
E.5 SELECTION OF HYDRAULIC OIL ......................................................................................................... E.33
E.6 LOCKING DEVICE FOR SWIVEL BRIDGE............................................................................................ E.34
E.7 TROUBLESHOOTING ............................................................................................................................ E.35
E.8 EC DECLARATION OF CONFORMITY.................................................................................................. E.37

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WARNINGS
A.1
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A WARNINGS
A.1 PERSONAL PROTECTIVE EQUIPMENT
During normal crane operations the users must wear:
- helmet
- safety gloves
- industrial footwear
- overalls secured using buttons and without loose or baggy parts
- high visibility clothing
IN ADDITION
+oil-proof gloves and safety goggles during maintenance tasks.
+ear protection if the noise level in the operating position exceeds 80 dB(A).
+a dust mask in the presence of dusts.
+a suitable mask in the presence of toxic fumes or poison gas.
Protective equipment
Standard protective equipment
during any crane operation
Additional protective equipment
during crane maintenance
Additional protective equipment
if the noise level exceeds 80 dB(A)
Additional protective equipment
in the presence of dusts
Additional protective equipment
in the presence of toxic fumes or poison gas

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WARNINGS
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A.2 MECHANICAL HAZARDS
The most common mechanical hazards due to a failure to follow the instructions in this user manual
are listed below.
A.2.1 STRUCTURAL RESISTANCE
The structural resistance may be impaired by the following adverse working conditions:
ENVIRONMENTAL TEMPERATURE
- Weakening of the crane structure
- Hydraulic oil viscosity too low/high
- Hydraulic oil overheating
- Weakening of plastic components
- Degradation of flexible hoses (-40°C ÷100°C)
INCLINATION OF THE CRANE'S BASE
- Crane rotation not possible
- Overpressure in slewing cylinders
- Overstress in rack - pinion wheel or thrust block - motor coupling
- Overstress in crane structure
- Loss of stability
INCLINATION OF THE CRANE'S BOOMS
When the crane works with the booms in a near-vertical alignment (lifting moment is near zero), the
load limiting device could operate without the expected accuracy due to:
- oscillations / accelerations of the booms
- inclination of the vehicle
- wind
- joint clearances, frictions
This could cause:
- Overstress in crane structure
- Loss of stability
OIL FLOW RATE TO MAIN CONTROL VALVE
- Overstress in crane's structure caused by excessive speed of movement
- Excessive oil temperature
WIND SPEED
- Overstress in crane structure
- Excessive oscillation of the load
- Loss of stability
PRECIPITATION
- Lightening, electric shock
- General malfunctioning of the electric system
USE IN EXPLOSIVE ENVIRONMENTS
- Flammable hydraulic fluid and plastic components
INSTALLATION ON RIGID BASE
- Excessive forces of inertia
USE IN MARINE ENVIRONMENT
- Corrosion of structural components: cylinder rods, pins, winch rope (offshore cranes)
- Excessive forces due to oscillation/inclination (ship-mounted cranes)

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WARNINGS
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LIFTING COMPONENT
- Excessive forces if lifting components other than hook are used
IP PROTECTION LEVEL
- Electric system faults (safety and controls)
WARNINGS
- Do NOT use the crane if the operating conditions are incompatible with the instructions given in
this manual. Specifically, the user must contact the crane manufacturer if the environmental
temperature is outside the range given in this manual.
- Handling of loads at heights requires full risk assessment: strictly adhere to the load charts and
always fully extend the stabilizers.
- Suspended loads must not be left unsupervised: put the load on a stable place before leaving the
control station.
- Do not slew the crane at max. speed up to the end of stroke (dead point), but approach slowly.
- Clear any snow or ice from the crane booms to prevent excessive stress caused by the extra
weight and to ensure that movement of telescopic components is not affected.
- Contact an authorised assistance centre before using or transporting the crane in a marine
environment.
- The lifting component to which the diagrams refer in this manual is the crane hook. If other lifting
components are used, the user must contact an authorised assistance centre to obtain a
dedicated load chart.
- Maintenance on the machine which requires welding or grinding is forbidden. Refer to an
authorised assistance centre if repairs or modifications to metalwork are required.

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WARNINGS
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A.2.2 CRUSHING HAZARD
Crushing hazards derive from moving components on the crane:
•body crushing between the crane and vehicle
•upper limb crushing between base and crane booms
•body crushing between stabilisers and a stationary object during stabilizer opening
•limb crushing when stabiliser legs are retracted
•lower limb crushing under the stabiliser feet
•limb crushing in openings
WARNINGS
- Cordon off the working area using barriers and warning signs before starting any operations with
the crane. Use special signals to warn others when crane movement is about to start. Avoid
hazardous situations in which the user or other personnel may be crushed by the crane,
stabilizers or the load.
- Do NOT climb on to the crane base when the vehicle's engine is running.
- When handling the crane, avoid grasping the control levers: operate them only with the fingers.
- Keep all personnel away from the hydraulic stabiliser extensions during opening.
- Do NOT place limbs under the stabiliser feet.

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WARNINGS
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- Do NOT place lower limbs between the stabiliser legs and the vehicle. Do NOT place hands near
the stabiliser extensions during retraction.
- Do NOT perform maintenance when the crane is moving or when the power take-off is enabled.
Do NOT touch the crane when it is moving.
- Abide by safety distances indicated in EN 349 and make sure all others do the same.
A.2.3 CUTTING HAZARD
Residual hazard associated with movement of booms and connecting rods. A residual cutting
hazard exists for the upper limbs between moving parts associated with the booms, base and
telescopic components.
WARNINGS
- When the crane is working, do NOT place upper limbs between the boom joints, near connecting
rods or in the area where the stabiliser extensions are retracted into the base. Do NOT insert
fingers, feet or limbs inside openings on moving parts.
- Do NOT stand between the base and booms during crane folding.

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WARNINGS
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A.2.4 IMPACT HAZARD
Residual hazard associated with:
•impact with the crane boom during unfolding/folding
•impact with the moving load
•impact with the stabilisers
•impact caused by an accidental release of the load
WARNINGS
- Take care not to bump against moving parts on the crane. Specifically, do NOT bang your head
on the boom during working operations.
-
- Take great care not to bump against the suspended load. The load must always be moved under
safe conditions away from potential hazards and obstacles, as specified in this manual.
- Always check that the load lifting components (hook, shackle, slings, chains) are in perfect
condition. Do NOT exceed the maximum load indicated on the plate. Check that the load is
properly secured to prevent accidental falling. Do NOT stand under the load.
- If the crane is equipped with turning stabilizers, take care to prevent impact with things and
persons during rotation.

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WARNINGS
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A.2.5 OIL LEAK HAZARD
Hydraulic fluid leaks can cause burns, irritation to the skin and eyes and can even penetrate under
the skin.
These hazards are associated with incorrect tightening of fittings, rubbing of hoses against metal
parts, excessive bending of hoses, incorrect disconnection of hoses during maintenance, incorrect
repairs, ageing, etc.
WARNINGS
- When the crane is new and used for the first time, small oil leaks from the fittings may occur due
to the heat expansion. Tighten the fittings using the torques given in this manual. Couplings may
be damaged if they are too tight.
- The crane is designed in such a way to prevent rubbing of hoses against moving parts. However
the installation configuration may cause hoses to come into contact with other moving parts. If this
happens use additional sheaths to protect the hoses.
- If a hose is damaged, immediately switch OFF the machine and identify the damaged area using
a piece of cardboard or wood. Spurts of fluid from a very small hole are powerful enough to
penetrate the skin.
- Precautions shall be taken when disconnecting hydraulic tubing and hoses to ensure that no
hydraulic pressure is retained in the line when the power supply to the system is switched OFF.
- When using blowtorches and other welding equipment for repairs (at an authorised assistance
centres only) switch OFF the pressure to the hydraulic system and work away from hoses and
steel lines.

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WARNINGS
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A.2.6 LOSS OF STABILITY
Loss of stability can cause serious damage to property and injury to persons. Carefully follow the
stabilizing procedure specified in this user manual. Do NOT tamper with safety devices. Stabilize the
crane on firm ground.
WARNINGS
- Check that the parking brake is ON and the wheels are secured by using chocks.
- Check that the stabiliser extensions are fully open (NO CE)
- Make sure that the stabilizer feet are correctly deployed and the ground can support their max.
pressure (see D.1). If it does not, retract the hydraulic extensions immediately, place the load on
the ground and increase the support area using larger support pads.

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WARNINGS
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- Do NOT place the stabilizer feet near drains, manholes, wells, electric conduits and in general on
any surface unable to support the maximum stabilizer force.
- When working on bridges the stabilizer feet must be placed at least one metre from the edge.
Make sure that the stabilizers are at a safe distance from ditches and steep slopes. As a general
rule the distance A between a stabilizer leg and the edge must be at least 2 times the depth B of
the ditch.
A
B
A > 2B
- Check that the crane is not inclined at an angle greater than the maximum permitted value G
(see B.6.3).
G°

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WARNINGS
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- Do NOT tamper with electrical, electronic and hydraulic safety devices on the machine. Check that
all safety and protection devices are installed and functioning correctly before using the crane.
- When a load is lifted for the first time proceed slowly and carefully to ensure that the area of
stability for the machine has been identified correctly. Inform the supervisor immediately of any
loss of stability.
- Routinely check correct functioning of the stabiliser legs. Stop work immediately in the event of
any faults and refer to an authorised assistance centre.
A.2.7 SLIPPING AND FALLS
This hazard exists where the ground is slippery (e.g. due to oil, water or other material), bumpy,
broken, etc.
•Fall hazard due to slippery or broken ground, etc.
WARNINGS
- Do NOT use the crane on unstable ground. The user shall NOT work on broken, slippery or
uneven ground. Unexpected stops during movement or unwanted enabling of controls may cause
serious damage to property and injury to persons.

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WARNINGS
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A.3 ELECTRIC SHOCK HAZARD
A.3.1 CONTACT WITH LIVE COMPONENTS
There is an electric shock hazard for the user under the following conditions:
•if the crane comes into contact with electrical power lines
•if the crane is struck by lightning
WARNINGS
- The crane should only be operated at a distance D of at least 7 m from electrical power lines. The
crane can be used closer to power lines if, following notification to the electricity supply company,
suitable protection is adopted to prevent any accidental contact. The minimum operating distance
must be calculated taking into account the maximum crane outreach towards the lines and the
maximum displacement of the lines.
D>7m
- The crane should only be used near live power lines if:
•Safety distances are adhered to
•Live parts are covered or surrounded by proper guards
•Overhead power lines are switched OFF for the entire duration of work
WHAT TO DO IN CASE OF CONTACT WITH POWER LINES
1) Keep calm
2) Do NOT leave the control position
3) Do NOT touch any metal parts on the machine
4) Warn people nearby not to approach the crane, vehicle, load or the person in the control position
5) Switch OFF the power line.
6) Do NOT leave the driving cabin. If you must abandon your position, do NOT touch the crane and
the ground at the same time, but leave your position by jumping to the ground.

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WARNINGS
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A.3.2 STATIC ELECTRICITY
The crane can accumulate static electricity. This generally occurs when the material placed between
the stabiliser feet and the ground is an insulator e.g. wood, the crane is used near radio transmitters
or high frequency switching systems and when a storm is approaching.
•Static electricity can affect correct functioning of pacemakers.
WARNINGS
- Accumulation of static electricity is prevented by connecting the vehicle's chassis to earth using a
proper conductive device.
- People with pacemakers are forbidden from approaching or using the crane.
A.4 HEAT HAZARDS
A.4.1 BURNS
These hazards are caused by:
•Contact with hot hoses, hot tanks and damage to hoses resulting in spurts of hot oil.
•Use in explosive environments
WARNINGS
- Do NOT touch any part of the hydraulic system when the temperature exceeds 50°C.
- Routinely check that the thermometer is functioning correctly. Refer to an authorised assistance
centre in the event of a fault.
- Environmental temperature can affect crane control capacity. Do NOT use the crane under
extreme environmental conditions (very hot, very cold, very high relative humidity).
- Do NOT use the machine in explosive environments.
A.5 NOISE HAZARDS
There are no significant noise hazards in that the crane does not include the power source.
WARNINGS
- Wear ear protection equipment if the noise level in the operating position exceeds 80 dB(A) as a
result of other machinery or equipment in use.

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WARNINGS
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A.6 VIBRATION HAZARDS
There are no significant vibration hazards in that a loader crane is used for short periods and
therefore there is no significant effect on the operator.
A.7 HAZARDS DUE TO TOXIC SUBSTANCES
These hazards are associated with:
•Inhalation of exhaust fumes or toxic substances caused by the working environment and/or the
substances moved.
•Incorrect handling or disposal of hydraulic oil.
•Incorrect handling or disposal of grease.
•Fire caused by highly flammable hydraulic fluid.
WARNINGS FOR TOXIC FUMES AND SUBSTANCES
Control positions must be located so that operators are not exposed to inhalation of exhaust fumes
and toxic substances caused by the working environment and/or the substances moved.
If the operator is exposed to exhaust fumes move the exhaust pipe outlet point further away from the
working position (e.g. using removable flexible hosing).
Wear a mask if the crane is used in environments with toxic fumes or substances.
WARNINGS FOR HYDRAULIC OIL AND INDUSTRIAL GREASE
These substances must be handled with care in a ventilated environment. Wear protective gloves
and goggles. They must be stored and moved in sealed containers to prevent leaks and accidental
contact with skin and eyes.
Store used oil and grease in sealed containers at a temperature less than 65°C. Contact an
authorised waste management company to dispose of them.
These substances are flammable. Keep all naked flames well away.
IN THE EVENT OF FIRE...
do NOT use water to extinguish fires. Use foam or CO2. Wear a gas mask.
IN THE EVENT OF ACCIDENTAL SPILLAGE...
- of hydraulic oil, use sand or sawdust to contain the fluid. Then place it in a container suitable for
disposal. If the spillage occurs in water contact the relevant authorities.
- of grease, wait for the grease to solidify. Then use a spade to scrape up the material and place it
in a container suitable for disposal.
FIRST AID IN CASE OF...
- contact with the skin: wash using soap and water.
- contact with the eyes: remove contact lenses and rinse using water.
- swallowing fluid: call a doctor, do NOT induce vomiting.

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WARNINGS
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A.8 ERGONOMIC HAZARDS
A.8.1 MANUAL OPERATIONS
WARNINGS
- Do not place the body under excessive strain when operating the crane. If manual operations are
required (e.g. pivoting stabilizer legs, lifting manual extensions or other components) or the load
must be moved by hand, do NOT lift a weight of more than 25 kg (20 kg for women).
A.8.2 VISIBILITY
WARNINGS
- When using the crane the operator shall have a perfect view of the working zone, of the controls
and of emergency and safety devices of machine.
- An additional lighting system conforming to EN 1837 must be installed if the crane is used at night.
- A qualified assistant must help the operator if the latter does not have a clear view of the entire
working range of machine.
A.8.3 HUMAN ERROR
WARNINGS
- Users must be able to read and understand the crane's documents and manuals.
- Users must be able to apply the prescriptions given in this manual.
- Users must receive adequate training (in accordance with ISO 9926-1) from the installer before
the crane is put into service. Use by other personnel is forbidden.
- People using the vehicle on public roads must have the relevant authorisation and be aware of
local driving legislation.
- Users and assistants must not be temporary staff. They must be at least 18 years old and able to
perform all tasks. In addition, the following aspects must be taken into consideration:
physical: sight and hearing; no fear of heights; not under the effects of alcohol, drugs or
prescription medicines;
psychological: conduct in stressful situations; mental balance; sense of responsibility.

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WARNINGS
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A.9 UNEXPECTED START-UP AND SWITCH-OFF
Impact, crushing, load loss and stability loss hazards exist as a result of accidental crane start-up
and switch-off.
WARNINGS
- Before using the crane check that there is enough fuel and the battery is in good condition.
- The user must be in full control of the machine with control and stop devices in easy reach from
the moment of start-up.
- Control and maintenance operations must be performed with the machine and engine switched
OFF, the brake ON and wheels blocked using special chocks.
A.10 FAULTS IN SAFETY DEVICES
•Tampering with safety devices can cause excessive stress on the crane, loss of stability, impact,
falling loads, sudden release of the lifting components and manual extensions, accidents when
moving the vehicle, etc.
•Incorrect folding of the crane can cause serious damage due to impact of protruding components
against various objects (bridges, garages, other vehicles, etc.) when moving the vehicle.
•Failure to apply decals to the machine may cause the user not to take into consideration hazards
associated with normal crane use.
WARNINGS
- Do NOT remove, modify or disable safety devices whether mechanical (guards, locks, etc.) or
hydraulic (valves, seals). Failure to abide by this regulation shall cause the warranty to be
declared null and void.
- Make sure lifting components are not supporting a load and are resting on a suitable support
surface before disconnecting them.
- Do NOT tamper with or remove warning stickers. Do NOT clean the stickers with solvents. Do
NOT use water or steam under pressure to clean the machine.

USER MANUAL
924NG
WARNINGS
A.16
7844181-00 03/20
subject to change without notice
- Before moving the vehicle always check that:
•The crane is folded correctly in transport position (1).
•The stabilizer extensions are fully retracted and locked (2). If the extensions are locked using a
pin, this must be inserted perfectly in the extension.
•No crane components or accessories are protruding outside the profile of the vehicle, (e.g.
prevent the hook from protruding, 3).
•The LED warning light in cabin is green (if present, see B.6.5).
1
2
3
•In addition, if the intended transport position is different from the standard folded configuration
(e.g. boom stowed on the truck body), the user must check that:
- the rotation of boom system is locked by a suitable locking device.
- the boom's height in transport position is less than the maximum value permitted by the road
safety regulations (e.g. height < 4m, see B.6.5).
H < 4m