Donati GRL Series User manual

JIB CRANE
360° MANUAL AND ELECTRIC
CONTINUOUS ROTATION –GRL SERIES
- USE INSTRUCTIONS -
INSTALLATION - USE - MAINTENANCE
MARCH 2022
KMAN60MG00
Translated from the original instructions in Italian

USE AND MAINTENANCE MANUAL FOR JIB CRANE
GRL SERIES
I
INDICE DEL CONTENUTO
1PRELIMINARY INFORMATION.........................................................................1
1.1 Manual contents and recipients ................................................................................................ 1
1.2 Symbols: meaning and use ....................................................................................................... 1
1.3 Collaboration with the user........................................................................................................ 2
1.4 Regulatory compliance............................................................................................................... 2
1.5 Manufacturer’s liability and warranty ....................................................................................... 2
2DESCRIPTION OF THE MACHINE AND TECHNICAL INFORMATION...........4
2.1 The jib cranes with manual/electric rotation............................................................................ 4
2.1.1 Intended use - Expected use - Intended purpose .................................................................4
2.1.2 Installation restrictions...........................................................................................................4
2.1.3 The composition of the jib cranes..........................................................................................4
2.2 Technical information and service conditions ........................................................................ 7
2.2.1 Regulatory reference framework ...........................................................................................7
2.2.2 Protection and insulation of electrical parts...........................................................................7
2.2.3 Electrical supply.....................................................................................................................7
2.2.4 Ambient use conditions .........................................................................................................7
2.2.5 Noise - Vibration....................................................................................................................7
2.2.6 Use criteria and operating conditions....................................................................................8
2.2.7 Electrically rotated GRL: characteristics and technical data .................................................9
3SAFETY AND ACCIDENT PREVENTION .......................................................13
3.1 Authorised operator qualifications ......................................................................................... 13
3.2 General safety regulations....................................................................................................... 14
3.3 Safety signs............................................................................................................................... 14
3.4 Warnings on residual risks...................................................................................................... 15
3.5 Safety devices and instructions.............................................................................................. 16
3.5.1 Control devices....................................................................................................................16
3.5.2 Safety and emergency devices for GRL..............................................................................16
3.5.3 Warning and notice devices - Signage summary................................................................16
4HANDLING - INSTALLATION - COMMISSIONING.........................................18
4.1 General notes for delivery........................................................................................................ 18
4.2 Packaging, transport and handling......................................................................................... 19
4.2.1 Standard packaging.............................................................................................................19
4.2.2 Transport .............................................................................................................................20
4.2.3 Handling...............................................................................................................................20
4.2.4 Removal of the packaging and/or checking of the crane parts ...........................................21
4.3 Jib crane installation ................................................................................................................ 21
4.3.1 Installer duties and responsibilities......................................................................................21
4.3.2 Preparation of the installation site .......................................................................................22
4.3.3 Assembly of the column (foundation plate, counterplate, column)......................................23
4.3.4 Assembly of the thrust bearing, arm and gear motor..........................................................27
4.3.5 Assembly of the electrical system .......................................................................................28
4.3.5.1 Electrical connections..................................................................................................... 29
4.3.6 Assembly of the trolley/hoist................................................................................................31
4.4 Commissioning ......................................................................................................................... 33
4.4.1 Preliminary tests - Adjustments and operating tests...........................................................33
4.4.2 Acceptance test of the jib crane - Suitability for use............................................................34
Static test:........................................................................................................................................ 35

USE AND MAINTENANCE MANUAL FOR JIB CRANE
GRL SERIES
II
4.5 Decommissioning ..................................................................................................................... 35
4.5.1 Storage and preservation of parts ...................................................................................... 35
4.5.2 Resetting after storage ....................................................................................................... 36
5OPERATION AND USE OF THE JIB CRANE .................................................37
5.1 Functions of the jib crane ........................................................................................................ 37
5.1.1 Intended use - Expected use - Intended purpose............................................................... 37
5.1.2 Permitted loads, unpermitted loads.................................................................................... 38
5.1.3 Lifting accessories .............................................................................................................. 38
5.2 Operating conditions ................................................................................................................ 39
5.2.1 Operating environment ....................................................................................................... 39
5.2.2 Danger zones and exposed persons.................................................................................. 39
5.2.3 Work area lighting............................................................................................................... 39
5.2.4 Operator.............................................................................................................................. 40
5.2.5 Jib crane capacity............................................................................................................... 40
5.2.6 Manoeuvres: lifting, trolley traverse and arm rotation......................................................... 40
5.2.7 Safety devices..................................................................................................................... 41
5.3 Activating the jib crane............................................................................................................. 41
5.4 Deactivating at the end of work............................................................................................... 42
5.5 Use criteria and precautionary measures .............................................................................. 43
5.6 Use contraindications............................................................................................................... 44
5.6.1 Unintended and unpermitted use - Predictable and unpredictable incorrect use............... 45
6JIB CRANE MAINTENANCE ...........................................................................47
6.1 Safety precautionary measures............................................................................................... 47
6.2 Qualification of personnel assigned to maintenance............................................................ 49
6.3 Maintenance plan ...................................................................................................................... 53
6.3.1 Daily and routine maintenance ........................................................................................... 53
6.3.2 Frequency and deadlines for maintenance interventions................................................... 54
6.3.3 Test of part and component efficiency................................................................................ 55
6.3.4 Cleaning and lubricating the jib crane ................................................................................ 57
6.4 Troubleshooting........................................................................................................................ 58
6.4.1 Main causes of malfunctions or faults and possible solutions............................................ 58
6.4.2 Personnel authorised to intervene in the event of a failure ................................................ 58
6.4.3 Decommissioning ............................................................................................................... 58
6.5 Disassembly, disposal and scrapping.................................................................................... 58
7SPARE PARTS.................................................................................................59
8CONTROL BOOKLET......................................................................................59

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
1
1 PRELIMINARY INFORMATION
1.1 Manual contents and recipients
This technical publication, marked with the code KMAN60MI00, refers to the “Jib crane, with
manual/electric rotation, “Column” type - GRL series.
DONATI SOLLEVAMENTI S.r.l.
Via Quasimodo, 17 - 20025 Legnano (MI)
Tel. [phone] - Fax [phone]
E-mail: [email protected]
www.donaticranes.com
It is related to their “intended use”, their functional technical specifications and performance and the relative
installation, use and maintenance instructions. It is addressed to:
•the manager of the plant, garage or job site
•operators assigned to transport, handling and installation
•operators assigned to use of the jib crane
•personnel assigned to maintenance
The manual must be kept by a person in charge of doing so, in a suitable place, so that it is always available
for consultation in the best possible conditions.
If it is lost or deteriorates, replacement documentation must be requested directly from the manufacturer,
quoting the code of this manual.
The manufacturer reserves the right to the material and intellectual property of this
publication and forbids its dissemination and duplication, including partial, without
prior written consent.
1.2 Symbols: meaning and use
Certain symbols are used in this manual to call the reader’s attention and underline some particularly
important aspects.
The following table shows the list and meaning of the symbols used in the manual.
SYMBOL
MEANING
EXPLANATION, RECOMMENDATIONS AND NOTES
Hazard
• Indicates a hazard with the risk of an accident, including fatal.
• The failure to comply with the instructions marked with this
symbol may result in a seriously hazardous situation for the
operator’s and/or exposed persons’ safety!
•Carefully follow the instructions!
Warning
• Represents a warning note of a possible deterioration of the
jib or a personal item of the operator.
•Important warning to pay attention to.
Warning Note
•Indicates a warning or a note on key functions or useful
information.
• Visual
observation
•Actions to
perform
• A stylized eye may indicate to the operator that:
a) He/she needs to make a visual inspection.
b) He/she must proceed with the operating sequence.
c) A measurement value needs to be read, a warning needs to
be checked, etc.

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
2
1.3 Collaboration with the user
The manual reflects the state of the art at the time the machine was placed on the market and is an integral
part of the machine.
Any supplements to the manual that the manufacturer considers appropriate to send to the users must be
kept together with the manual.
The manufacturer is available to its customers to provide additional information and to consider proposals
for improvement in order to make the manual closer to the needs for which it was prepared.
If the jib crane is sold, the main user is asked to deliver, along with the crane, this manual and the relative
attached documentation (declarations, diagrams, test logbook, etc.).
1.4 Regulatory compliance
The GRL series jib cranes are designed and constructed in consideration of the “Essential Health and
Safety Requirements” of Annex 1 of Machinery Directive 2006/42/EC and are put on the market with
the CE marking and CE Declaration of Conformity - as per Annex II A of the same Directive.
fig. 1 Example of CE Certificate
fig. 2 Example of UKCA Certificate
In addition, the GRL series jib cranes are in compliance with the following directives:
•Low Voltage Directive 2014/35/EU;
•Electromagnetic compatibility directive 2014/30/EU.
1.5 Manufacturer’s liability and warranty
In terms of the contents of this manual the company shall not be held liable in the following cases:
•use of the jib crane not in compliance with national laws on safety and accident prevention
•incorrect selection or set-up of structures on which the crane will be installed

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
3
•defects in voltage and the mains supply
•no or incorrect compliance with the instructions provided in this manual
•unauthorised modifications to the machine
•use by personnel who are not trained or not suitable
To be able to use the warranty, the customer must scrupulously follow the instructions indicated in this
manual, and in particular:
•always operate within the limits of use of the jib crane
•always perform a constant and diligent maintenance
•assign use of the machine to operators with a proven capacity, adequately instructed for the
purpose
•only use the original spare parts indicated by the manufacturer
•The intended use and the configurations of the jib are the only ones allowed.
Do not try to use it ignoring the provided instructions.
•The instructions contained in this manual do not replace but summarise the
obligations to comply with current accident prevention laws.

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
4
2 DESCRIPTION OF THE MACHINE AND TECHNICAL
INFORMATION
2.1 The jib cranes with manual/electric rotation
2.1.1 Intended use - Expected use - Intended purpose
The jib cranes, with manual/electric rotation, in “Column” version - GRL series are created to locally handle
goods inside a plant, on a loading dock or along with operating stations.
Jib cranes perform three operations:
•they lift the load vertically in space, via a hook on the lifting unit, generally composed of a manual
or electric chain hoist and using accessories suitable for this operation;
•they traverse the load in space, with the assistance of an electric or manual hoist holder trolley,
which runs along the radial axis of the crane arm;
•they rotate the load in space, around the constrained axis of the arm, through a manual push
action of the load using the circular area below, limited by the rotation radius of the arm.
2.1.2 Installation restrictions
The “Column-mounted” - GRL series jib cranes, are generally designed to be attached to the ground,
the column is self-bearing and can be anchored to the ground with stay bolts, on a specific foundation plinth
or, in special cases after verifying the feasibility, also with expansion bolts or chemical anchoring.
•The user must verify, either directly or through personnel specialised in the matter,
the suitability of the anchoring surfaces which must ensure the stability and safety
of the crane in all operating conditions, withstanding the stress and dynamic
effects induced by the overturning moment and the lifting type and speed.
2.1.3 The composition of the jib cranes
The composition of the jib crane is relatively simple: the metalwork structure, lifting unit composed of a
hoist (electric or manual), the traverse unit formed by hoist holder trolley (electric or by pushing) and a
series of accessories (tie-rods, foundation plinth, electrical system, etc.).
The GRL series crane is composed of a column with polygonal section attached via stay bolts or bolts to
the specifically dimensioned base and of a rotating arm situated on the column itself.
Column: Made of press-forged steel sheet welded to the tubular structure with polygonal section it allows
high rigidity and stability for the crane; it is fixed to the base with a base plate and a system of bolts or stay
bolts. In the upper part a pair of plates supports the crane arm and allows it to rotate (fig. 3).
Rotating arm: The arm, turning around its axis on thrust bearing, is composed of a weight-bearing beam
for travel of the hoist holder trolley and is created for capacities from 125 to 2,000 kg and jibs up to 7 m
(fig. 4).Made using a laminated double T-beam form: the hoist carrying trolley runs on the lower flanges of
the T-beam. The beam is self-bearing with cantilever, therefore it does not have support bolts. Allows
optimal use of the available overhead space due to the absence of bolts. The crane can be used in
combination with electric or mechanical push-trolleys.

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
5
fig. 3
fig. 4
Electrical system:
It is intended for the electrical input of the hoist and/or trolley (if electric) which slides along the arm of the
crane. It has a connector block, situated on the top of the crane, for the connector between the line and the
festooned cable. The electrical system is built using a flame retardant type generally flat cable with festoons,
sliding on specific trolleys.
Foundation frame with stay bolts:
Upon request, supplied for fixing the column itself to the base (foundation plinth) (fig. 6).
Counterplate with chemical bolts:
Upon request, supplied for fixing the column itself to the floor (fig. 7).
Finishing:
Protection of the metalwork structure from inclement weather and environmental agents (dust, gases, etc.)
is guaranteed by treatments performed using the application of yellow (std RAL1007) enamel, after
preparing the surfaces with metallic sandblasting.
Lift and traverse unit:
The manually or electrically rotated jib cranes can be equipped with a hoist with relative trolley in both
electric and manual version.
For the dimension specifications, weights and maximum reactions allowed on the trolley wheels see the
relative table in the “Technical specifications” in paragraph 2.2.
fig. 5

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
6
The concept and construction:
•The 360° rotating jib cranes of the GRL series are built based on the concept of modular
components which, assembled to each other based on commercial needs, as well as the standard
versions always available in the warehouse, they allow fast and economic creation of many
standardised and special configurations.
•The base components, columns and arms, thanks to their extreme compactness can be assembled
together so as to guarantee the maximum use of the hook run and, thanks to their minimum lateral
encumbrance, allow the optimal use of the area where the jib crane operates.
•The construction uses the most evolved technology based on high industrialisation production
processes and allows the creation of completely reliable and technically innovative machines
through economies of scale.
Arm electric rotation device:
Formed by a gear motor (fig. 8) fixed vertically in the upper part of the arm, made with a motor of epicycloid
type, with gears in a thermally treated oil bath and self-braking conical brake motor.
The pinion protruding from the gear motor is coupled with a toothed thrust bearing attached to the column.
Progressive starting and braking are ensured by a frequency variator (inverter).
Electric safety limit switch (fig. 9) on the rotation movements, installed, if necessary, to delineate the rotation
field of the arm of the crane.
Working on the auxiliary circuits at low voltage, it is a worm screw type with two thresholds of intervention
both in right rotation and left and also carries out the emergency function in safety if there is any fault or
malfunctioning of the first threshold of intervention.
fig. 8
fig. 9
fig. 6
fig. 7

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
7
2.2 Technical information and service conditions
2.2.1 Regulatory reference framework
In the designing and construction of the manually rotated jib cranes, the following standards and main
technical rules have been taken into consideration:
•EN ISO 12100:2010 “General principles for design”
•EN ISO 13849-1:2008 “Safety-related parts of control systems” (where required).
•EN 6020432:2009 “Safety of machinery. Electrical equipment of machines. Requirements for
hoisting machines”
•EN –60529/97 “IP code”
•ISO 4301-1/88 “Cranes and lifting appliances --. Classification”
•FEM 1.001/98 “Rules for the design of hoisting appliances”
•FEM 9.683/95 “Selection of lifting and travel motors”
•FEM 9.755/93 “Measure for achieving safe working periods for motorised serial hoist units
(S.W.P.)””
•FEM 9.941/95 “Graphical symbols for control devices”
•EN 16851/16 “Cranes – Light crane systems”
2.2.2 Protection and insulation of electrical parts
•Rotation motor: Protection IP55 (motor) IP23 (brake); insulation class “F”
•Electrical panel: Protection IP55 - Maximum voltage insulation 1500V
•Push-button panel: Protection IP65 - Maximum voltage insulation 600V
•Collector: Protection IP00 (IP55 upon request) - Maximum voltage insulation 500V
•Limit switch: Protection IP65 - Maximum voltage insulation 300V
•Cables: CEI 20/22 II - Maximum power insulation 450/750V
2.2.3 Electrical supply
• The jib cranes have been designed to be powered with alternating electric current with
maximum three phase voltage of 480V- Standard GRL gear motor with three phase inverter.
2.2.4 Ambient use conditions
•Operating temperature: minimum - 10°C; maximum + 40°C
•Maximum relative humidity: 80%
•The machine must be installed in a well ventilated area, free from corrosive fumes (acid fumes, salt
mist, etc.).
•It is forbidden to use the machine in an explosive atmosphere or potentially
explosive one or where the use of non-explosive components is required
•Sufficient work spaces must be provided in order to ensure the safety of the
operator and personnel assigned to maintenance.
2.2.5 Noise - Vibration
•For both manual and electrical rotation jib cranes, noise level during functioning is below the
prescribed limits adopted (70 dBA).
•The vibrations produced by the jib crane, during arm rotation, are practically zero and are not
hazardous for the health of the personnel who operates it.
•Excessive noise or vibration may be caused by a fault which must be immediately reported and
eliminated in order not to compromise the reliability of the job crane.

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
8
2.2.6 Use criteria and operating conditions
One of the necessary and indispensible conditions to obtain the complete operating compliance of the jib
crane, for the use it is intended for, as well as excellent and long-lasting operation of the same, consists of
the correct selection of the machine model. This selection must be made based on the real service
performance required as well as the ambient conditions where the crane will operate.
The parameters which must be carefully considered in the choice of jib crane are:
•The capacity: the maximum load weight to lift must be calculated and must not ever be less than
the same.
•The functional dimensions: the height of the trolley beam which determines the hook run of the
hoist, and its jump (jib) must be selected so as to guarantee the functional coverage of the area to
be served in consideration of the surrounding encumbrances.
•Type of travel: manual or electric based on the characteristics of the mass to move.
•Nature of the load: delicate or not determines by its positioning the choice of the most suitable
handling (lifting and travel) speeds. In some cases it is indispensable to use hoists with two speeds
with a slow positioning speed
•Area of use: the jib crane is characterised, by its conception, by intrinsic high elasticity which
becomes even more evident when it is used for handling with loads close to the maximum lifting
capacity and/or with prevalent localisation at the ends of the arm.
•Ambient of use: the jib cranes are intended to be used inside and/or in a covered area, sheltered
from bad weather and wind. Measures must be taken for outdoor use for a suitable surface
treatment (sandblasting - painting) as well as a self-braking system.
•Frequency of use: if use is very high (frequent and/or repeated manoeuvres) with loads close to
the maximum load the consequent fatigue of the operator due to manual handling must be taken
into consideration.
•The correct evaluation of the parameters indicated above, may lead, if they are
close the their limit values, to the need to use a crane with higher performance
characteristics that, once declassed, may ensure greater rigidity and duration.
•The use of an electric trolley instead of a push trolley can also reduce operator
fatigue.

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
9
2.2.7 Electrically rotated GRL: characteristics and technical data

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
10
Fixing systems for jib cranes

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
11
Counterplates for fixing the following pillar-mounted cranes to the floor with chemical bolts: GRL
•M16 chemical bolts - minimum floor thickness 170mm
The fixing of the pillar with chemical bolts requires a scrupulous check of suitability
in relation to the type of support flooring. The suitability checks are the responsibility
of the user and must be carried out by expert, qualified technicians who will evaluate
the feasibility and formally undertake the relative responsibilities.

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
12
•M12 chemical bolts - minimum floor thickness 140mm
The fixing of the pillar with chemical bolts requires a scrupulous check of suitability
in relation to the type of support flooring. The suitability checks are the responsibility
of the user and must be carried out by expert, qualified technicians who will evaluate
the feasibility and formally undertake the relative responsibilities.

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
13
3 SAFETY AND ACCIDENT PREVENTION
The GRL series rotating jib cranes and relative accessories were designed and built based on the most
modern technical knowledge and can be used safely.
The hazards for assigned personnel can be completely eliminated and/or significantly reduced only if the
crane is used in accordance with the instructions contained in this documentation by authorised and
specifically instructed personnel, in possession of sufficient preparation.
PERSONNEL IS RESPONSIBLE FOR THE FOLLOWING OPERATIONS:
Any installation and completion of the jib crane parts which may be missing (e.g. hoist, electric controls,
anchoring accessories, etc.);
Commissioning of the crane and management of its operation.
Inspections and tests of the crane and its components, before start-up, during operation and even after it
stops.
Maintenance of the crane and repair and/or replacement of its components.
The personnel must be absolutely informed on potential hazards they may encounter in performing their
jobs, both in terms of operation and the correct use of safety devices available on the machine.
These personnel must also carefully comply with the safety rules contained in this chapter in order to
prevent the occurrence of hazardous situations.
3.1 Authorised operator qualifications
To better define the field of operation and the consequent undertaking of responsibility by each
OPERATOR, given the specific training and achieved qualification, the following table has been prepared
of the professional profiles with relative pictogram, necessary for all types of operation.
PICTOGRAM
OPERATOR PROFILE
ASSIGNED TO USE
Operators assigned to use of the jib crane:
Personnel assigned to perform only simple jobs, i.e. drive the crane
through the use of controls and the loading and unloading
operations of materials to handle.
MECHANICAL MAINTENANCE
PERSONNEL
Mechanical maintenance personnel:
Qualified personnel able to intervene on the crane in normal
conditions, make normal adjustments of the mechanisms, perform
routine maintenance and mechanical repairs
ELECTRICAL MAINTENANCE
PERSONNEL
Electrical maintenance personnel:
Qualified personnel able to intervene on the crane in normal
conditions and assigned to normal interventions of an electrical
nature, adjustments, maintenance and repair.
Able to work in the presence of voltage inside the panels.
MECHANICAL TECHNICIAN
Mechanical technician:
Qualified and authorised technician for performing complex and
extraordinary operations of a mechanical nature
ELECTRICAL TECHNICIAN
Electrical technician:
Qualified and authorised technician for performing complex and
extraordinary operations of an electrical nature

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
14
3.2 General safety regulations
Before putting the jib crane into service, it is necessary to:
•Carefully read the technical documentation;
•Become informed on the operation and positioning of the emergency stop devices;
•Know what safety devices are installed on the crane and their location;
Some of the activities to perform on operating components (e.g. replacing the hoist chain) expose the
operators to serious hazardous situations, therefore personnel must be authorised and specifically
instructed on the operating procedures to follow, hazardous situations that may occur and the correct
methods for avoiding them.
3.3 Safety symbols
Pictograms have been used in the manual to highlight any hazardous situations due to residual risks or
actions which must be performed according to the safety procedures indicated their description.
PICTOGRAMS USED IN THE MANUAL TO HIGHLIGHT HAZARDOUS SITUATIONS
PICTOGRAM
MEANING
Risk of being crushed during handling of suspended loads in the case of
exposure of the operator or other personnel in the zones/areas involved in the
trajectory of the load.
Attention risk of being crushed by moving mechanical parts.
Attention risk of being drawn in and dragged by moving parts (chain, wheels,
etc.).
Risk of electrocution - being shocked in the case of maintenance on the
electrical equipment without disabling the electrical supply.
It is prohibited to move through, stand, work or manoeuvre under the
suspended load.
It is forbidden to touch the crane arm and the trolley/hoist when moving or
expose yourself to their trajectories.
It is prohibited to work on the electrical equipment before having disconnected
the hoist.
It is prohibited to restart the hoist if the removed guards have not been put back.
Protective gloves must be used.
Comply with all of the instructions contained in this instruction manual.
It is mandatory to perform a preventive check of chains, ropes, hooks, slings
and accessories used for lifting and handling.

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
15
3.4 Warnings on residual risks
After having carefully considered the hazards present in all of the jib crane operating phases, measures
have been adopted that are necessary to eliminate, as much as possible, the risks for operators and/or to
limit or reduce the risks resulting from hazards that cannot be completely eliminated at the source. However,
despite all of the adopted precautions, the following residual risks are on the machine that can be
eliminated or reduced through the relative prevention activities:
RISKS DURING USE
HAZARD / RISK
HAZARD / RISK
HAZARD / RISK
Risk of being crushed during
handling of suspended loads in
the case of exposure of the
operator or other personnel in
the zones/areas involved in the
trajectory of the load
• It is prohibited to lift loads
while people are going
through the relative
manoeuvre area.
•It is prohibited to move
through, stand, work or
manoeuvre under the
suspended load.
• The operator assigned
to use must follow the
indications to obtain the
best safety by complying
with the instructions
contained in this manual.
•The rope and hook must be
checked periodically
Risk of being drawn in and/or
crushed following contact with
the arm in rotation and/or with
the moving parts of the
trolley/hoist.
• Attention! Exposure to
moving parts may create
hazardous situations.
•It is forbidden to touch the
crane arm and the trolley/hoist
when moving or expose
yourself to their trajectories.
•It is mandatory to use gloves
during the slinging and
pushing phase of the load
RISKS DURING MAINTENANCE
HAZARD / RISK
HAZARD / RISK
HAZARD / RISK
Risk of electrocution - being
shocked in the case of
maintenance on the electrical
equipment without disabling the
electrical supply
It is prohibited to work on the
electrical equipment before
having disconnected the jib crane
from the electrical line.
• Assign the electrical
maintenance operations to
qualified personnel
•Perform the tests on the
electrical equipment
contained in the manual.
Risk of being crushed in the
event of contact with the
rotation arm during the brake
adjustment phase.
•Attention! Exposure to
moving parts may create
hazardous situations.
• Assign the brake
adjustment operations to
qualified maintenance
personnel
•Use protective gloves and, if
necessary, safety harnesses

USE AND MAINTENANCE MANUAL FOR
JIB CRANE - GRL SERIES
16
3.5 Safety devices and instructions
3.5.1 Control devices
Series GRL jib cranes - can be controlled in the following manner:
1. If equipped with an electric hoist and push trolley movements are activated:
•from a pushbutton panel with “lift and lower” buttons to control the lifting movement.
•by pushing the load to control the traverse trolley.
2. If equipped with an electric hoist and electric traverse trolley movements are activated:
•from a pushbutton panel with “lift and lower” buttons to control the lifting movement.
•from a pushbutton panel with “right and left” buttons to control the traverse movement.
3. If equipped with a manual hoist and trolley movements are activated:
•by mechanical activation of the hoist chain for the lifting movement.
•by pushing the load to control the traverse trolley.
4. The rotation movement of the jib crane arm, both clockwise and anticlockwise, is activated
manually with P&T pushing the load (fig. 10)or electrically from the pushbutton panel.
3.5.2 Safety and emergency devices for GRL
The GRL jib cranes are equipped with the following safety and emergency devices (fig. 11):
1. Trolley end limit switch, mechanical stops that limit the maximum stroke of the trolley along the
arm beam.
2. Mechanical drives (in the case of crane with electric trolley), limit switch matching parts of the
traverse trolley electric microswitches.
3. Electric safety limit switch on the rotation movements, installed to delineate the rotation field of
the arm of the crane.
fig. 10
fig. 11
3.5.3 Warning and notice devices - Signage summary
The GRL series jib cranes are equipped with the following warning and notice devices. Plates present
on the machine:
•manufacturer’s logo. (fig. 12a)
•jib crane data plate with CE mark (fig. 12b)
•plate indicating the maximum capacity of the jib crane. (fig. 12c)
•direction plate (if electrical rotation) (fig. 12d)
•warning plates for residual risks. (fig. 12e)
•hoist plates, and trolley plate (if any)