SAFI VISION AS 300 User manual

MANUAL OF INSTRUCTIONS
INSTALLATION
MAINTENANCE
MANUAL OF INSTRUCTIONS
FOR
INSTALLATION
USE
MAINTENANCE
VISION
AS
LIFT
MANUAL OF INSTRUCTIONS
AS
300

LIFT MODEL VISION AS 300 Rev.001
Dear Customer,
We want to thank you for choosing one of SAFI machines, and we are
glad to give this manual to you to enable you to safely operate the
machine. We suggest you to read carefully this manual before operating
the lift in the various phases of installation, use, maintenance, repair,
and dismantling. We are at your disposal for any further information you
might have to ask and for any idea or suggestion of improvement to the
manual to be the most complete as possible and to meet the safety
requirements for which it has been written.
Best regards

LIFT MODEL VISION AS 300 Rev.001
GENERAL INDEX
1 GENERAL INFORMATION 1-1
1.1 Documentation supplied ......................................................................... 1-1
1.2 Manual data .......................................................................................... 1-1
1.3 Customer data ....................................................................................... 1-1
1.4 Information property rights ..................................................................... 1-1
1.5 Identification Serial o. .......................................................................... 1-2
1.6 Markings ............................................................................................... 1-2
1.7 Use of the manual .................................................................................. 1-3
1.8 “CE” declaration of compliance ............................................................... 1-3
1.9 Description ........................................................................................... 1-4
2 SAFETY PLAN FOR BUILDING YARDS LIFTS 2-1
2.1 Identification, analysis and evaluation of possible risks ............................... 2-1
2.2 Preventive measures and protection from risks .......................................... 2-2
2.3 Personal safety equipment ...................................................................... 2-2
2.4 Accomplishment .................................................................................... 2-2
2.5 Rules references .................................................................................... 2-3
3 INFORMATION ON SAFETY AND DEVICES 3-1
3.1 Safety criteria ....................................................................................... 3-1
3.2 Personnel qualification ............................................................................ 3-2
Manual brake disengaging device for emergency descents: The manual disengaging
device for emergency descents consists in a threaded bar which causes the approaching
of the anchor to the electromagnet and therefore the loosening of the brake . The
manual descent must be carried out only in case of a power supply current failure,
following the procedure described in paragraph....................................................... 3-5
4 TECHNICAL CHARACTERISTICS 4-1
4.1 Technical features – Dimensions .............................................................. 4-1
LIFT COMPONENTS -1
5.1 Base .................................................................................................... 5-2
5.2 Vertical and terminal elements ................................................................ 5-3
5.3 Fence at the base .................................................................................. 5-4
5.4 Hoisting devices and elevator car support ................................................. 5-5
5.5 Cabin with lifting group and fork .............................................................. 5-5
5.6 Elevator car with guardrail ...................................................................... 5-6
5.7 Rollers .................................................................................................. 5-7
5.8 Anchorages ........................................................................................... 5-8
5.9 Electric cables ....................................................................................... 5-9
5.10 Cable-holding arm ................................................................................. 5-9
5.11 Cable-guiding arm ............................................................................... 5-10
5.12 Trolley ................................................................................................ 5-10
5.13 Door of access to a floor ....................................................................... 5-11
6 OPERATOR INTERFACE 6-12
6.1 Electric panel ...................................................................................... 6-12
6.2 Electrical connections ........................................................................... 6-12
6.3 Description of control panel (inside the cabin) ......................................... 6-13
6.4 Calling at floor control panel .................................................................. 6-14
6.5 Push-button panel for installation and maintenance.................................. 6-15
7 ERECTION AND DISMANTLING 7-1
7.1 Dangerous zones and residual risks during the erection and dismantling ....... 7-1
7.2 Safety prescriptions ............................................................................... 7-2
7.3 Machine transport .................................................................................. 7-2
7.4 Unpacking ............................................................................................. 7-2

LIFT MODEL VISION AS 300 Rev.001
7.5 Preliminary prescriptions ......................................................................... 7-3
7.6 Vision AS 300 lift ................................................................................... 7-3
7.7 Assembly .............................................................................................. 7-5
7.8 Operation of the elevator car door opening and lift door ............................. 7-7
7.9 Preliminary checks ................................................................................. 7-8
7.10 Trestles and doors assembly ................................................................... 7-8
In case of electric power supply failure during the mounting dismantling phases of the
mast, with a consequent stop of the elevator with personnel on board high from the
ground, it is possible to descent to the floor or to the nearest point by operating the
gearmotor brake of operation following the modality described in paragraph ............ 7-10
7.11 Dismantling ......................................................................................... 7-10
8 USE 8-1
8.1 Obligations and ban ............................................................................... 8-2
8.2 Hazardous zones and residual risks during the use ..................................... 8-3
8.3 Operator instructions .............................................................................. 8-3
8.4 Setting to work ...................................................................................... 8-3
8.5 Disabling of the machine......................................................................... 8-4
8.6 Centrifugal parachute brake .................................................................... 8-4
8.7 Parachute brake resetting ....................................................................... 8-6
8.8 Emergency manual descent ..................................................................... 8-6
8.8.1 Maneuvre for emergency manual descent........................................... 8-6
9 MAINTENANCE 9-1
9.1 Information regarding safety ................................................................... 9-1
9.2 Preliminary and periodic checks ............................................................... 9-1
9.3 Maintenance of the self-braking unit ......................................................... 9-4
9.4 Modification of the braking torque ............................................................ 9-6
9.5 Assembly of the manual releasing device .................................................. 9-6
9.6 Replacement of the braking disc .............................................................. 9-6
10 Problem and solution 10-8
11 TRANSPORT 11-1
12 WIRING DIAGRAMS 12-1
13 CONTROL RECORD BOOK 13-16
13.1 Record book cards .............................................................................. 13-17
14 SERVICING 14-1
14.1 Requests for spare parts ....................................................................... 14-1

LIFT MODEL VISION AS 300 Rev.001
INDEX OF ILLUSTRATIONS
Fig. 1-1 : umber plate ........................................................................................... 1-2
Fig. 1-2 : Table of loads .......................................................................................... 1-3
Fig. 3-1 : Emergency button .................................................................................... 3-5
Fig. 5-1 : General view ............................................................................................ 5-1
Fig. 5-2 : Base ....................................................................................................... 5-3
Fig. 5-3 : Mast elements ......................................................................................... 5-3
Fig. 5-4 : Fence ...................................................................................................... 5-4
Fig. 5-5 : Cabin Frame ............................................................................................ 5-5
Fig. 5-6 : Cabin ...................................................................................................... 5-6
Fig. 5-7 : Guard rails .............................................................................................. 5-7
Fig. 5-8 : Rollers .................................................................................................... 5-7
Fig. 5-9 : Anchorage ............................................................................................... 5-8
Fig. 5-10 : Anchorages - Lay-out .............................................................................. 5-8
Fig. 5-11 : Cable-holding arm .................................................................................. 5-9
Fig. 5-12 : Cable guiding arm ................................................................................ 5-10
Fig. 5-13 : Trolley pre-tensioning device ................................................................. 5-10
Fig. 5-14 : Door to acess on the floor ...................................................................... 5-11
Fig. 6-1 : Main electrical box – Lateral and control panel view .................................... 6-13
Fig. 6-2 : Calling floor control panel ........................................................................ 6-14
Fig. 7-1 : Dimension ............................................................................................... 7-4
Fig. 7-2 : Trolley wheel ........................................................................................... 7-6
Fig. 7-3 : Mounting - Doors and parapets .................................................................. 7-6
Fig. 7-4 : Mounting – Fence ..................................................................................... 7-7
Fig. 8-1 : Parachute brake ....................................................................................... 8-5
Fig. 8-2 : Lever of emergency manual descent ........................................................... 8-2
Fig. 9-1 : Electric motor self-braking unit .................................................................. 9-4
Fig. 9-4 : Speed reducer ......................................................................................... 9-7
Fig. 12-1 : Wiring diagram - Power supply ............................................................... 12-1
Fig. 12-2 : Wiring diagram – Motor power supply ..................................................... 12-1
Fig. 12-3 : Wiring diagram – Emergency circuit ........................................................ 12-2
Fig. 12-4 : Wiring diagram – Auxiliary ..................................................................... 12-3
Fig. 12-5 : 4 : Wiring diagram – Auxiliary PLC logo expans. ....................................... 12-4
Fig. 12-6 : Auxiliary circuit .................................................................................... 12-5
Fig. 12-7 : Wiring diagram – Connectors C1, C2, C3 ................................................. 12-6
Fig. 12-8 : Wiring diagram – Terminal box electric panel ........................................... 12-7
Fig. 12-9 : Wiring diagram – Cable call floor ............................................................ 12-8
Fig. 12-10 : Wiring diagram – Floors call connection ................................................. 12-9
Fig. 12-11 : Wiring diagram – Box floor call connection ............................................ 12-10
Fig. 12-12 : Wiring diagram – Box Fencing connection ............................................. 12-11
Fig. 12-13 : Wiring diagram – Cable fancing call ...................................................... 12-12
Fig. 12-14 : Main electrical box components ........................................................... 12-13
Fig. 12-15 : Material list #1 .................................................................................. 12-14
Fig. 12-16 : Material list #2 .................................................................................. 12-15

LIFT MODEL VISION AS 300 Rev.001
INDEX OF TABLE
Table 1 : General features ....................................................................................... 4-1
Table 2 : Dimensions .............................................................................................. 4-1
Table 3 : Elements.................................................................................................. 4-2
Table 4 : Weights ................................................................................................... 4-2
Table 5 : Weights ................................................................................................... 5-2
Table 6 : Parts to lubrificate ..................................................................................... 9-3
Table 7 : Components of the self-braking unit ............................................................ 9-4
Table 8 : Lubrification ............................................................................................. 9-5
Table 9 : Speed reducer .......................................................................................... 9-7
Table 10 : Inconveniences to the electric installation ................................................. 10-9
Table 11 : Table of periodic checks ........................................................................ 13-25

LIFT MODEL VISION AS 300 Rev001 1-1
1 GENERAL INFORMATION
1.1 Documentation supplied
Instruction manual (this booklet).
1.2 Manual data
Edition 0001
Year and month of printing MAY 2012
language E GLISH
1.3 Customer data
Customer TRADEHOUSE A/S
address POPPELGAARDVEJ 7, 2860 DK
Date of delivery of the machine 08.06.2012
1.4 Information property rights
This manual contains copyright information. All rights are reserved.
o part of this manual can be reproduced or photocopied without the prior written permission of
SAFI.
Permission to use this documentation has only be given to the customer to whom the manual
has been supplied as part of the machine's equipment and only for the purpose of installation,
operation and maintenance of the machine to which the manual refers.
SAFI S.r.l. declares that the information contained in this manual complies with the technical
specifications and safety regulations of the machine which this manual concerns about. The
manufacturer declines any responsibility for direct or indirect damages to things or injuries to
people or domestic animals arising from the use of this documentary material or of the machine
in conditions which differ from those allowed.
Due to a constant and continuous effort made by the manufacturer to improve the product, the
machine supplied -in some of its components- could differ from what described in this manual.
Any alteration anyway will always be accompanied by specific enclosures which will illustrate
functionalities and characteristics. In case of differences from the basic content of the manual
ask immediately the manufacturer for the supplementary technical sheet. SAFI S.r.l. reserves
the right to update its production and according instructions manuals consequently to the
technique evolution, the acquisition of new experiences and/or laws modifications without for
this having any obligation to intervene on the previous commercialized machines and on their
relevant manuals. The information contained in this manual is specifically referred to the
machine specified in “Machine identification details”.

LIFT MODEL VISION AS 300 Rev001 1-2
Main data of the machine
Type of machine CRA E OPERATOR HOIST
Model VISIO AS 300
Manufacturer SAFI
Registration o. 002003
Year of Manufacture 2012
Place of Manufacture ITALY
EC control Certificate o. ??
Date of EC control Certification ??
1. Identification Serial No.
Description o. Date
Motor unit Serial o. (#1) ?? ??
Gear-motor/s Serial o. ??
Parachute brake Serial o. (if present) ??
1.6 Markings
Tables must be easily read and fixed to the machine in a permanent way. Here to follow the list
of the provided tables and pictures with indications of their positioning on the machine.
• umber plate (Fig. 1-1).
• Table of loads (Fig. 1-1).
E
Fig. 1-1 : Number plate

LIFT MODEL VISION AS 300 Rev001 1-3
PS: Maximum travel speed: 22 m/min ( to be corrected on table of loads)
Fig. 1-2 : Table of loads
1.7 Use of the manual
Read the following chapters carefully: I FORMATIO O SAFETY A D DEVICES A D
OPERATORS .
For any operation of installation, use, maintenance and dismantling consult the according
chapter.
The manufacturer declines any responsibility for inconveniences arising from the non-
observance of the above mentioned rules and of all the prescriptions contained in this manual.
NOTE: This manual must be kept within reach in case of need for the whole
technical life of the machine. “CE declaration of compliance

LIFT MODEL VISION AS 300 Rev001 1-4
NOTE: See “CE Declaration Enclosed.
1.8 Description
The builder's yard lift model VISIO AS 300 is a tower type of hoisting equipment whose
transmission system is obtained by means of a rack and an electric motor-driven pinion. It
hoists an elevator car along a supporting mast - tied to the wall or to suitable scaffolds- up to the
maximum capacity load of 300 da .
(Following in red to be deleted, no sale promotion in a technical manual)
The builder's yard lift VISIO AS 300 is a machine which allows a relevant reduction in
management costs of a modern builder's yard.
The lift offers many advantages to the user such as for instance:
• the possibility of hoisting materials to higher floors, therefore to leave the crane free
for other uses;
• personnel can easily reach the various level floors for finishing or control purposes;
• safety and time saving are granted while personnel and materials are displaced;
• easy use and maintenance;
• possibility of assembly inside lift wells (even in small ones).
Moreover, as far as the technical/organizational aspect is concerned, this platform enhances the
image of the building contractors which are using it.
Its compact design is the reason for its peculiar characteristics as it allows to make good use of
all the available spaces.
To ease the carrying and loading/unloading operations the elevator car and the base fence can
be demounted.
The motor unit, the elevator car and the base can be supplied either as an assembled unit or
separately for transport and bulk reasons.
The assembly of the parts will be carried out in the building yard at the time of installation. Even
the elevator car -either to allow the assembly inside a building or to be loaded and transported
in a container- can be supplied demounted.

LIFT MODEL VISION AS 300 Rev001 2-1
2 SAFETY PLAN FOR BUILDING SITE LIFTS
2.1 Identification, analysis and evaluation of possible risks
The list here below (E 12159/2000) contains a list of risks to eliminate or reduce as they could
come up during the various installation stages of the equipment operating life:
1. Fall of a worker from height to ground
2. Fall of material from height to ground
3. Electric shock from bad wiring
4. Mechanical risks
• Clamping
• Cutting off
• Impact
• Expulsion of parts
• Losing of steadiness
• Sliding, tripping and fall
5. Risk caused by electrical failure
6. Electric contact
7. Risks generated by the non-observance of the ergonomic principles while projecting the
machine
8. Dangerous postures or excessive physical efforts
9. Human error
10. Combination of risks
11. Electric power failure
12. Overturning, unexpected lose of the machine steadiness
13. Risks caused by a lack of the safety devices or by their improper positioning
14. Safety guards improper position
15. Start and stop devices improper function
16. Safety warnings posts and signaling problems
17. Energy supply disconnecting devices improper function
18. Emergency devices in improper function
19. Equipment and accessories necessary for setting up and maintenance in safety
conditions
20. Risks generated by the movement
21. Unsuitable lighting in the working/maneuvering zone
22. Risks generated by sudden movements, by lack of steadiness etc. during the
maneuver
23. Insufficient visibility from the operator position
Special risks generated by the hoisting of people
• Excessive speed
• Fall of people from the elevator car

LIFT MODEL VISION AS 300 Rev001 2-2
• Fall or overturning of the elevator car
• Excessive acceleration or braking of the elevator car
• Imprecise signaling
2.2 Preventive measures and protection from risks
• The erection and use of the lift must be assigned to qualified and trained personnel
only who must be informed of the specific risks.
• Before the erection verify the soil pressure and provide for load distribution elements
in each case.
• Follow all the indications given in the manual for the use and maintenance supplied
by the manufacturer.
• Delimit the zone underneath the platform so to avoid the transiting or stopping of
people.
• Delimit the zone underneath the lift so to avoid the transiting or stopping of people.
• Check that the installation connections electrical to earth and of protection against
the atmospherically discharges have been made properly.
• Paths and access zones must be accessed in safety and protected against the risk
of fall.
• Check that the lift is working minimum 5m distance from electric cables and that
there are no hindrances to lift cage.
• Check the safety devices.
• Personnel must access the working deck with the safety harness hooked to fix parts
of the structure.
• All the equipment parts must be protected against the corrosion.
• The capacity load on top of the lift is equal to 300kg
• Steadiness against the overturning of the equipment must be assured.
• The maximum lifting speed of the hoist is 22 m/min.
• Floorings must be kept antislip.
• Safety parapets are 1.100 mm high not to be removed.
• The electric equipment protection level corresponds to IP55, to be kept.
• In case of cut in the electric energy supply, the lift must be taken back to ground
level acting on the manual brake release.
• It is necessary to take back the lift to the ground level when the wind blowing speed
is faster than 101,8 km/h. ??????
2.3 Personal safety equipment
• Operators charged with the erection, dismantling and use of the lift must necessarily
use: helmet, gloves, safety boots without non-pierce able soles, safety harness to
access the working deck.
2.4 Accomplishment
• Check periodically the lifting organs, bolts and anchorages, every three months to
be made by the user.
• Lubricate and greasing of the lifting organs.

LIFT MODEL VISION AS 300 Rev001 2-3
• Obligation to charge the maintenance of the equipment to a person formed and
responsible for this.
2. Rules references
• D.L. 19.09.94, . 626 - Actuation of the 89/391/CEE, 89/654/CEE, 89/655/CEE,
89/656/CEE, 90/269/CEE, 90/270/CEE, 90/394/CEE and 90/679/CEE directives
concerning the improving of the workers’ safety and health conditions on the
working place.
• D.P.R. 07.01.56, .164 - Rules for the accidents prevention at work in the building
sector.
• D.P.R. 27.04.55, .547 - Rules for the accidents prevention at work.
• Pr E 12159 - Building hoists for persons and materials.
• E 292-1, Machinery safety - Fundamental concepts, general principles of
projecting - Part 1: Terminology, basic methodology.
• E 292-2:1991 + A1:1995, Machinery safety - Fundamental concepts, general
principles of projecting - Part 2: Specifications and technical principles
• E 294:1992, Machinery safety - Safety distances to keep in order preventing the
reach of dangerous zone with the upper limbs.
• E 349, Machinery safety - Minimum room to avoid the squashing of parts of the
body.
• E 418: 1992, Machinery safety - Emergency stop devices, functional aspects -
Principles of projecting.
• E 811, Machinery safety - Safety distances to keep in order to prevent the reach of
dangerous zone with the lower limbs
• E 894 -1, Machinery safety - Ergonomic requirements for the information and
control devices projecting - Part 1: General principles for human interactions with
information and control devices.
• E 953, Machinery safety - Safety guards - General requirements for the projecting
and construction of fix and movable guards.
• E 954-1:1996, Machinery safety - Parts of the control system connected to safety -
Part 1: General principles of projecting.
• E 1037 Machinery safety - Prevention of unexpected starts.
• E 1088, Machinery safety - Interlocking devices combined to safety guards.
projecting and choice principles.
• E 60204-1:1997, Machinery safety - Electric equipment of machines - Part 1:
General rules (IEC 60204-1:1997).
• E 60204-32, Machinery safety - Electric equipment of machines - Part 32:
Requirements for hoisting devices 1 (EC 60204-32:1998).
• E 60529, Guide on wraps protection (IP Code) (IEC 60529:1989).
• E 60947-4-1, Low-voltage equipment - Part 4-1: Counters and starters -
Electromechanical counters and starters (IEC 60947-4-1:1990).
• E 60947-5-1:1997, Low-voltage equipment - Part 5-1: Control circuit devices and
maneuver elements - Electromechanical devices for control circuits (IEC 60947-5-
1:1997).
• ISO 3864, Safety colors and safety symbols.
• ISO 4302, Hoisting equipment. Wind loads.

LIFT MODEL VISION AS 300 Rev001 2-4
• ISO 6336-1-2-3-5, Calculation of the load capacity of the cylindrical and helicoidally
gears -Part 1: General principles, introduction and general factors of influence 1.
Part 2: Calculation of the resistance of the surface to the pitting. Part 3: Calculation
of the resistance of flexion of the gear tooth 1. Part 5: Resistance and quality of
materials 1.

LIFT MODEL VISION AS 300 Rev001 3-1
3 INFORMATION ON SAFETY AND DEVICES
3.1 Safety criteria
For the projecting and construction of this machine all the criteria and details meeting the main
safety requirements requested by the Machines Directive 98/37/CE, Low Voltage Directive
73/23/CEE, modified by the directive 93/68/CEE, and by the Electromagnetic Compatibility
Directive 89/336/CEE and following modifications have been used. The harmonized rule E
12159 has been applied.
An accurate analysis from the manufacturer has allowed the avoidance of the main part of both
the foreseen and the reasonably foreseeable risks related to the conditions for the machine use.
A complete documentation of the safety precautions taken is given in the technical handbook of
the machine, deposited at SAFI premises.
The manufacturer recommends to follow the instructions given in this manual carefully and to
keep to the safety regulations at work in force. This recommendation is extended to the use of
the safety guards provided, both those integrated and those added to the machine.
ATTENTION: Do not wear large clothes, ties, neck laces, watches which might get
entangled in moving parts of the machine.
NOTE: SAFI S.r.l. does not assume the responsibility for any damages to
properties nor injuries to people or domestic animals arising from the non-
observance of the safety rules and recommendations contained in the
documentation provided.
The user, for his/her safety and for those who are working in the vicinity, must respect the safety
rules required by the type of equipment used, by the working environment and by the effective
operating conditions.
The use is subordinated to the respect of the following safety standards.
The basement must be installed on a sufficiently load-bearing supporting plane,
according to loads specifications.
• The whole ground area of the equipment must be adequately fenced.
• Access to the operating zone must be strictly reserved to the personnel in charge only.
• Operating personnel must wear the safety helmet.
Check the stability of the wall before securing the mast to it, according to the loads
specifications given in chapter. Make sure that the access to loading and unloading floors is
adequately fenced and that those fences can be removed only after the elevator has reached
the level floor.
• The machine must be erected in the definitive position by the yard foreman who must
verify the respect of all the safety rules.
• Check and verify the load bearing of the machine supporting plane and the distance
from the wall before the erection.
• All the operations of mounting, dismantling, use and maintenance outside the elevator
car must be carried out by personnel specifically authorized.
• Access to the ground area -reserved to assembly operations of the equipment- must be
precluded and signaled by means of adequate no admittance warning signs.
• Install special warning signs.
• Carry out routine and scheduled maintenance operations on a regular basis.

LIFT MODEL VISION AS 300 Rev001 3-2
• During the erection, dismantling and maintenance the 6P multiple connector of the
supply cable must be disconnected so as to prevent the push-buttons fitted at the floors
doors being operated.
• Make sure that no object hang over the building so as to prevent the elevator run from
being hindered.
• Respect the rules about the load.
• Do not remove the mechanical or the electrical safety systems.
• Any mechanical or electrical intervention must be carried out by personnel authorized by
the yard foreman, who must be informed about the type of operation to carry out.
• Do not make sudden maneuvers of reverse.
• Make sure that the elevator car is not in motion before pressing the push-button of
summoning to the floors.
• In case of unsuitable weather conditions, lead the elevator to the ground.
• Make the earth connection of the machine and of the base fence and check that the
resistance won't exceed 2 Ohm.
• In case of emergency press the mushroom-head push-button and turn the main cut-out
switch to the "0" position.
• All the staff that operate the elevator must necessarily be informed about the instructions
and rules contained in this manual. The use of the machine to any person not authorized
by the foreman is strictly forbidden.
• Do not overload the elevator; see the indications provided in the technical features.
• Do not concentrate the load into a unique point of the elevator car but try to distribute it
on all the available surface.
• Lead the lift to the ground again in the presence of wind force higher than 20 m/s.
• Do not carry out operations of assembly/disassembly in the presence of wind force
higher than 12.5 m/s.
3.2 Personnel qualification
Three different figures can intervene on the machine:
6. Mechanical maintenance man: this qualified operator is able to operate the machine in
normal conditions and with the guard’s open, to intervene on the mechanical members
to make settings, maintenance and repair. He/she is not allowed to make electrical
interventions when voltage is on.
7. Electrical maintenance man: qualified operator able to operate the machine in normal
conditions and with guard’s open, to make any electrical intervention for settings,
maintenance and repair. He/she is enabled to perform electrical interventions when the
electric cabinet is lived.
8. Builder technician: technician qualified sent on purpose by SAFI S.r.l. for any
complicated repair to perform in particular situations, as per what agreed with the
customer.

LIFT MODEL VISION AS 300 Rev001 3-3
3.3 Safeguards
Safeguards are any safety measures which involve the application of specific technical
mechanisms (guards, safety devices) to protect people from dangers which cannot be
made sufficiently harmless through design.
Fixed and moveable guards
The machine is equipped with fix and moveable guards for the operator’s safety and more
precisely, it is equipped with:
• Base Fence (see Fence at the base).
• Side overturning gate for masts assembly: during the erection/dismantling phase of
the trestles it allows the operators to approach the mast. During the operation a
mechanical lock keeps it fastened to the elevator car.
Passive safety devices
With passive safety devices are meant those devices or tricks which eliminate or reduce
the risks for the operators without requiring any active interventions of them.
The lift is equipped with the following limit switches:
• Rise/descent and rise-descent extra-stroke electric limit switch: the rise and
descent limit switches get tripped when the elevator car arrives in correspondence of
the relative limit switch sliding blocks secured in position at the time of the erection.
Up electric limit switch: it limits the maximum up travel of the lift.
Down electric limit switch: it limits the maximum down travel of the lift.
“Up-down” extra stroke limit switch: it is a further safety device in case of fault of the
previously described limit switches.
It is possible (when the machine is new in particular) that frequent use of the
machine requires the adjustment of the position of the limit switch sliding blocks.This
is due to the run-in wear of the braking devices. The limit switch tripping prevents
electrically the correspondent maneuver only. It is in fact possible to make the
opposite one.
• Overrun safety limit switch: The overrun safety limit switch is positioned on the
motor group and is equipped with a roller in contact with the vertical tube of the
trestle to prevent the escape of the motor from the vertical trestle in case of an
erroneous maneuver. During the erection phase, when the rise limit switch and the
terminal trestle have not yet been fitted, it prevents the rise once the summit has
been reached. It must not be considered as a working limit switch but as an
emergency limit switch, therefore the operator who controls the elevator car must
operate from the roof keeping the trestle in sight.
Terminal mast fitted with half rack: The top mast is supplied complete with half rack so
in case of an overrun of the rise limit switch sliding block, the hoisting group
cannot overrun from the top mast, even in case the rise limit switch were not in
working condition. (See Vertical and terminal elements)
• Automatic tripping parachute brake: The automatic tripping parachute brake is a
braking device which gets activated automatically, then independent from
mechanical and power-driven hoisting devices.
• Motor connected with parachute brake activated by limit switch: The motor
connected to the limit switch is to avoid activation of the electric motor, until the
activation of the parachute brake has been found out, and the normal operating
condition restored.

LIFT MODEL VISION AS 300 Rev001 3-4
• Flashing lamp signaling parachute brake activated: The activation of the
parachute brake causes the flashing of the lamp fitted on the control electric panel.
• Lifting motor: A self-braking electric motor.
• Emergency lamp: The emergency light is a lamp situated inside the elevator car
which switches on in case of a current supply failure. This is controlled by a switch
fitted on the electric panel to prevent it from staying lighted when the elevator is not
in use.
• Siren: On the under part part of the elevator car an acoustic alarm - which must be
audible from a distance not inferior to 100 m - is fitted to signal when the elevator car
is out of order, to call for help.
• Fix signal to indicate the level floor: colored bands located halfway the doors
height to give indication to the operator in charge of the movement of the level floor
reached. SECTIO TO CA CEL
Interlocking devices
Interlocking devices are those switches which stop the machine or prevent the machine
from starting up if this is not within certain safety conditions. An example of interlocking
devices are the key micro switches which detect the opening of the moveable guards.
The machine is equipped with the following interlocking devices:
• Limit switch fitted on elevator car access doors and exits: the doors of the
elevator car are equipped with an electric limit switch to prevent the movement of
the car in case a door was not shut completely.
• Mechanical lock fitted on the elevator car doors and on the floor landing
doors: The mechanical lock the elevator car sash doors are equipped with is a
mechanical device which prevents the opening of the doors when the floor double
door is not present.
• Access door to level floors mechanical interlock: A device which locks the
sliding door when closed. The unlocking is automatic and carried out by means of a
slide the elevator car is provided with.
• Limit switch fitted on access doors to level floors: The limit switch at the door to
a level floor is fitted to check if the door is completely closed. If not, the limit switch
does not give the signal to the elevator car to start.
• Locking system for an elevator car exit is equipped with limit switch: The
elevator car exit can be equipped with a mechanical locking system controlled by an
electric limit switch. This is to guarantee that the exit is closed and locked before
giving the signal to the elevator for moving. The standard locking system guarantees
only that the elevator door is closed.
DANGER: Erection mode overruling door limit switches: The limit switches positioned
at the doors and floor doors will allow to the elevator car to operate freely.
DANGER: Fiddle the guards and micro switches causes risks to the operator and to
any other people around.
NOTE: The manufacturer will not be liable for injury or damage to persons, animals
or things caused by fiddle with the machine's safety devices.
Active safety devices