Fervi T999/230V User manual

LATHE MACHINE
OPERATION AND
MAINTENANCE MANUAL
Bench Lathe
Art. T999/230V –T999/230V3A
Art. T999/400V -T999/400V3A
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 2 of 84
PREFACE
Please ensure you have read this manual before operation
TRANSLATION OF THE ORIGINAL INSTRUCTIONS
It is compulsory to read this instruction manual before starting operation. The guarantee of
smooth operation and full performance of the machine is highly dependent on the application
of all the instructions contained in this manual.
Operator qualifications
The workers responsible for the use of this machine must have all the necessary
information and instruction and should be given adequate training in relation to safety
regarding:
a) Conditions of use for the equipment;
b) Foreseeable abnormal situations, pursuant to Article 73 of Legislative Decree
81/08.
We guarantee the Machine complies with the specifications and technical instructions
described in the Manual on the date of issuance and listed herein; On the other hand,
the machine may also be subject to important technical changes in the future, without
the manual being updated.
Therefore, contact FERVI for information about modifications that may have been
implemented.
REV. 1 May 2013
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 3 of 84
INDEX
1 GENERAL INFORMATION...........................................................................5
2 GENERAL SAFETY WARNINGS ...................................................................7
2.1 General safety rules for machine equipment.................................................................7
2.2 Safety rules for electrical machine equipment ..............................................................9
2.3 Technical Assistance .....................................................................................................9
2.4 Other provisions ...........................................................................................................9
3 TECHNICAL SPECIFICATIONS .................................................................10
4 DESCRIPTION OF THE MACHINE .............................................................11
4.1 Intended use and field of application..........................................................................11
4.2 Description of the main parts......................................................................................13
4.2.1
Supporting table
...................................................................................................... 14
4.2.2 Head and spindle ..................................................................................................... 14
4.2.3
Spindle speed adjustment levers
................................................................................ 14
4.2.4
Feed speed adjustment panel
.................................................................................... 15
4.2.5
Tool holder carriage
................................................................................................. 15
4.2.6 Tailstock ................................................................................................................. 15
4.2.7 Steady rest ............................................................................................................. 16
4.2.8 Electric control panel ................................................................................................ 16
4.2.9 Pedal brake ............................................................................................................. 16
4.2.10 Rotation reverse lever .............................................................................................. 17
4.3 Identification plate .....................................................................................................17
4.4
Pictograms and plates
.................................................................................................18
5 MACHINE SAFETY DEVICES.....................................................................19
5.1 Electrical safety devices..............................................................................................19
5.2 Mechanical Safety Devices ..........................................................................................20
5.3 Personal Protective Equipment (PPE) .........................................................................21
6 FORBIDDEN USES AND HAZARDS ...........................................................22
7 LIFTING, TRANSPORTATION AND STORAGE IN WAREHOUSE .................24
7.1
Lifting
.........................................................................................................................24
7.2 Transportation ............................................................................................................24
7.3
Warehouse storage
.....................................................................................................24
8 ASSEMBLY AND COMMISSIONING ..........................................................25
8.1 Identification of the installation site ...........................................................................25
8.2 Support base...............................................................................................................25
8.3
Levelling the machine
.................................................................................................26
8.3.1 Preliminary phase .................................................................................................... 26
8.3.2
Transverse levelling of the table
................................................................................ 26
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 4 of 84
8.3.3
Levelling the lathe rails
............................................................................................. 26
8.4
Operations before starting the machine.
.....................................................................26
8.4.1
Lubrication and greasing
........................................................................................... 26
8.4.2 Connection to the power supply network..................................................................... 26
8.4.3 Open circuit test ...................................................................................................... 27
9 DESCRIPTION OF CONTROLS ..................................................................28
9.1 Control buttons ...........................................................................................................28
9.1.1 Main switch ............................................................................................................. 28
9.1.2
Electric and control panel buttons and lights
................................................................ 28
9.1.3
Emergency button
.................................................................................................... 29
9.2 Levers and control wheels ..........................................................................................29
9.2.1
Spindle speed adjustment knobs
................................................................................ 29
9.2.2
Automatic feed speed adjustment knobs
..................................................................... 30
9.2.3
Adjustment knob / lever of the split casing
.................................................................. 31
9.2.4
Levers and handwheels of the carriage and tool holder slides
........................................ 32
9.2.5 Lever and handwheel of the tailstock.......................................................................... 33
9.3 Mechanical brake pedal of the spindle ........................................................................34
9.4
Digital display
.............................................................................................................34
9.4.1
Using the display
..................................................................................................... 35
10 OPERATION..........................................................................................46
10.1 Automatic Feed Tool
Carriage
..................................................................................49
11 MAINTENANCE .....................................................................................51
11.1 Lubrication...............................................................................................................52
11.2 Periodic checks ........................................................................................................54
11.3
Adjusting the Machine
.............................................................................................54
11.3.1
Adjusting the tension of the motor belts
..................................................................... 54
11.3.2
Tailstock alignment
.................................................................................................. 55
11.3.3
Spindle alignment
.................................................................................................... 55
11.3.4
Adjusting the slack of the gears
................................................................................. 56
12 REPLACEMENT PARTS...........................................................................57
12.1 ACCESSORIES SUPPLIED..........................................................................................80
13 DISPOSAL OF PARTS AND MATERIALS .................................................81
14 TROUBLESHOOTING .............................................................................82
15 ELECTRIC CIRCUIT ...............................................................................83
15.1 Art. T999/400V........................................................................................................83
15.2 Art. T999/230V........................................................................................................84
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 5 of 84
1 GENERAL INFORMATION
This manual is considered an integral part of the machine it was attached to at the time of
purchase.
The manufacturer holds all ownership to material and intellectual property of this manual;
any disclosure or copying, even partial, of this publication without prior written consent is
forbidden.
This manual is designed to provide the knowledge required for the use and maintenance of
the Gear head lathe (Art. T999/230V – T999/230V3A – T999/400V T999/400V3A)
and to provide the operator assigned to the device with a sense of responsibility and
knowledge of its possibilities and limitations.
Operators must be properly trained and prepared, so make sure that this manual is read and
consulted by the staff responsible for commissioning, operation and maintenance of the
machine. This is to make all operations as safe and effective as possible for those who carry
out these tasks. Therefore, it is imperative to strictly comply with the requirements in this
manual, a necessary condition for safe and satisfactory operation of the Lathe.
Before starting operation, installation and use of the machine, authorized staff must
therefore:
read this technical document carefully;
know which protections and safety devices are available on the Lathe, their location and
how they work.
The buyer is responsible for ensuring that users are properly trained, that they are aware of
all the information and instructions in this document and that they are aware of the potential
risks of operating the Lathe.
The manufacturer will not be held responsible for any damage to people and/or
property caused by non-compliance with any instructions in this manual.
Operators will be held fully responsible for any changes they have made to the
machine; the manufacturer will not be held responsible for any damage to persons
and/or property resulting from maintenance performed by unqualified personnel
and in a manner that differs from the operating procedures shown below.
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 6 of 84
The Gear head lathe has been designed and built with mechanical guards and safety devices
designed to protect the operator/user from possible injury.
It is strictly forbidden to modify or remove guards, safety devices and caution labels. If you
do so temporarily (for example, for the purposes of cleaning or repair), make sure that no
one can use the machine.
Graphic representation of safety, operational and risk warnings
The following boxes are designed to attract the attention of the reader / user for the proper
and safe use of the machine:
Pay Attention
This highlights behavioural rules to prevent damage to the machine and/or the occurrence of
dangerous situations.
Residual Risks
This highlights the presence of dangers that cause residual risks to which the operator must
pay attention in order to avoid injury or damage to property.
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 7 of 84
2 GENERAL SAFETY WARNINGS
2.1 General safety rules for machine equipment
Follow the instructions contained herein, in addition to the general precautions to be observed
while working. Even if the operator is already familiar with the use of manually operated lathes, it
is necessary to: In particular:
Acquire full knowledge of the machine.
For safe operation, this manual must be read carefully in order to acquire the necessary
knowledge of the machine and to understand: operation, safety devices and all
necessary precautions.
Wear appropriate clothing for the job.
The operator must wear appropriate clothing to prevent accidents.
Maintain the machine with care.
Risks associated with using the machine
The machine must only be used by personnel who have been specially trained by authorized
personnel.
Risks associated with using the Machine
DO NOT underestimate the risks associated with using the machine and concentrate on the
work in progress.
Risks associated with using the Machine
Despite the implementation of all the safety devices for safe use of the machine, it is
necessary to take note of all the requirements for the prevention of accidents detailed in the
various sections of this manual.
Protective equipment for the operator
Before starting any type of work, the operator must wear the appropriate personal protective
equipment (PPE) such as goggles, gloves etc. (see section 5.3 of this manual).
1. Always check the efficiency and integrity of the machine.
2. Before connecting the machine to the mains, make sure that the rotating parts are not
damaged or badly worn. Make sure that the switch is in the neutral position.
3. Do not start the machine in an enclosed or poorly ventilated area, or in the presence of
a flammable and/or explosive atmosphere. Do not use the machine in damp and/or wet
locations, or those exposed to rain.
4. Avoid starting accidentally.
5. Before starting the machine, get used to ensuring that no remaining maintenance and
service keys are inserted.
6. Keep the workplace tidy and free from obstruction; disorder causes accidents.
7. Make sure that your work environment is forbidden to children, strangers and animals.
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 8 of 84
8. Do not perform tasks on the machine other than those for which it was designed. Only
use the machine in the manner in which it was intended, as described in this
instruction manual.
9. Work without disturbances.
10. Work areas must be well lit.
11. Always wear eye protection and protective gloves while working. If dust is produced,
use the appropriate masks.
12. Wear appropriate clothing. Loose clothing, dangling jewellery, long hair, etc.., can get
caught in the moving parts, causing irreparable injury.
13. Firmly secure the workpiece before starting the lathe, using the jaws installed on the
spindle.
14. Always use the tool in an appropriate manner. Perform only the work for which the tool
is made. Do not use the tool for inadequate work.
15. Only use suitable resistance tools in relation to the work that is to be done. This is to
avoid risky and unnecessary overloading for the operator, which may be harmful for
the life of the tools themselves.
16. Do not pick up moving tools or other moving parts. To stop the moving parts on the
machine, always only use the stop command device.
17. Before performing any measurement of the workpiece mounted on the spindle, turn the
motor off, unplug it and wait for the spindle to stop.
18. Do not remove the shavings with your hands, even at a standstill. To do this, use tongs
or a palette knife.
19. When the work tools need to be replaced or the speed needs to be changed, stop the
motor and wait for the spindle to stop.
20. Do not move away from the machine until the tools and other moving parts, have
completely stopped.
21. After the work is completed, clean the tool and check its efficiency.
22. Replace worn and/or damaged parts, check that the repairs and protections work
properly before operating. Eventually, if necessary, have it checked by Service staff.
Use only original spare parts.
23. Unplug the power cord of the machine from the power outlet when:
the machine is not being operated;
it is left unattended;
performing maintenance or registration, because the machine does not work properly;
the power cable is damaged;
the tool is replaced;
it is being moved or transported;
during cleaning operations.
24. It is recommended that users of this publication, for maintenance and repair, have a
basic knowledge of the mechanical principles and procedures inherent in repair
technique.
25. The company safety officer is required to make sure that machine operators
have read and understood this manual in its entirety.
26. Management is responsible for safety and verification of the company's risk
status according to Legislative Decree 81/08.
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 9 of 84
2.2 Safety rules for electrical machine equipment
Changes in the Electrical System
1. Do not modify the machine's electrical system in any way. Any attempt to do so may
impair the operation of the electrical devices causing a malfunction or accident.
2. Work on the electrical system of the machine must therefore be carried out only by
qualified and authorised personnel.
3. If you hear unusual noises, or notice anything unusual, stop the machine immediately.
Then, carry out an inspection and, if necessary, perform any repairs as required.
1. The supply voltage must correspond to that stated on the identification plate and in the
technical specifications (400 V / 50 Hz or 230 V 50 Hz). Never use any other type of
power supply.
2. The use of a lifesaving device on the power supply line is recommended. For more
detailed information, contact a trusted electrician.
3. The power plug must be a grounded tripolar type plug for T999/400V and a grounded
bipolar plug for T999/230V. Any extension cords must be of equal or greater length
than the power cord on the machine.
4. Make sure that the power cord does not come into contact with hot objects, wet or oiled
surfaces, and/or sharp edges.
5. The power cord should be checked regularly and before each use to check for signs of
damage or wear. If these are not in good condition, do not use the machine and replace
the cable.
6. Do not use the power cord to remove the plug from the socket or move the machine.
2.3 Technical Assistance
For any problems or concerns, please do not hesitate to contact the dealer who sold the item.
2.4 Other provisions
TAMPERING WITH SAFETY DEVICES IS FORBIDDEN
Check the presence and integrity of protective devices and the proper functioning of safety
devices before starting operation.
If any defect is detected, do not use the Gear head lathe!
It is strictly forbidden to modify or remove guards, safety devices, labels and information
plates on the machine.
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 10 of 84
3 TECHNICAL SPECIFICATIONS
Description (unit of measurement) T999/230V T999/400V
Centres distance (mm) 1000
Spindle hole diameter (mm) 38
Maximum swing over the bed (mm) 320
Maximum swing over the cross slide (mm) 198
Turning diameter over cavity (mm) 470
Spindle diameter (3 + 3 self centring) (mm) 160
Spindle connector Camlock D1-4
No. of spindle speeds 8
Spindle speed (r/min) 70 - 2000 RPM
No. of metric threads 32
Range of metric threads (mm) 0.44- 10
No. of inch threads 20
Range of inch threads (mm) 2 ¼ - 40
Range of longitudinal feeds (mm) 00.78- 1.044
Range of transverse feeds (mm) 0.022- 0.298
Outer diameter of the feed screw (mm) 22
Guide length (mm) 1390
Cross carriage travel (mm) 200
Tailstock sleeve diameter (mm) 32
Maximum travel of the tailstock sleeve (mm) 80
Inner taper
CM 5
Tailstock base length (mm) 165
Tailstock base width (mm) 125
Steady rest diameter (mm) 120
Dimensions (W x D x H) (mm) 1820 x 530 x 1350
Package dimensions (W x D x H) (mm) 1920 x 840 x 1560
Weight of machine (kg) 520
Voltage / power supply frequency (V / Hz) 230/50. 400 / 50
Motor power (W) 1500/1800
Acoustic pressure level at operator's workstation
(dB(A)) 84
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 11 of 84
4 DESCRIPTION OF THE MACHINE
The Gear head lathe (Art. T999/230V e T999/400V) is a machine tool, with a horizontal
axis, for the machining of metallic materials by means of cold chip removal.
The cutting motion is given by the motion of the workpiece, rotating on its own axis, and the
feed motion of the tool.
The machine is completely manually operated, as it can only execute movements under the
direct control of the operator.
4.1 Intended use and field of application
The machine is designed and built to perform the following operations on all types of ferrous
metals:
Cylindrical turning;
Taper turning;
Facing;
Profiling
Drilling;
Boring;
Threading;
Cutting / Breaking (from bar).
Intended use and materials
The machine has been designed and manufactured for the use specified. Operating the
machine other than as intended and non-observance of the technical parameters laid down
by the Manufacturer may be dangerous for operators; therefore the former cannot accept any
responsibility for resulting damage.
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 12 of 84
The lathe is equipped with a support base and must be installed and used on flat surfaces,
with ergonomic features and adequate resistance.
The Lathe can operate in closed work environments (production halls, warehouses, etc.), i.e.
protected from the weather and where there is no danger of fire or explosion.
The operating temperature range is -20 to +50°C.
The environment must also be sufficiently illuminated so as to ensure operation in maximum
safety (at least 200 lux is recommended).
There are two main groups within the Lathe (see figure 1):
The spindle shaft unit;
The sliding tool holder unit.
The first is constituted by the spindle, which is made integral with the workpiece, and by the
components that transmit motion from the motor to the spindle.
The second is constituted by the components that transmit motion to the slide, which guides
the tool in the feeding motion and movement of the workpiece.
Figure 1 – Typical main groups of the bench lathe.
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 13 of 84
4.2 Description of the main parts
Figure 2 – Main parts of the gear head lathe (Art. T999/230V and T999/400V).
1Brake 9Protective device 17 Tailstock handwheel
2
Carriage handwheel
10
Halogen lamp
18 Support bars
3Workbench 11 Turret 19 Lead screw
4Speed switches 12 Coolant tube 20
Turning bar
5Side cover 13
Longitudinal turret travel
(mm)
21 Bar for lathe activation
6Control panel 14 Micrometer 22 Tray
7Electrical controls 15 Tailstock block 23 Transmission activation lever;
83-
jaw lathe spindle
16 Guides 24
Digital display
4
1 2
5
6
3
7
89
10
11 12
13
14 15
16
17
18
19
20
21
22
23
24
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 14 of 84
4.2.1 Supporting table
The supporting table (ref. 2 in figure 2 ) is made of cast iron; the casting has been stabilized
to avoid twisting and/or deformation due to the internal stresses in the material. In the upper
part there are prismatic guides that ensure the movement and alignment of the drive head
with the carriage and the moving head (tailstock). The guides are hardened and ground.
Reinforcements ribs have been incorporated that increase rigidity.
4.2.2 Head and spindle
The head is made of high strength cast iron, in addition two internal protrusions which have
been introduced that increase rigidity, reducing vibration during high speed machining.
The different spindle speeds are obtained by means of a gear speed change (see also section
4.2.3 of this manual).
The head is made of high strength cast iron, in addition two internal protrusions which have
been introduced that increase rigidity, reducing vibration during high speed machining.
The different spindle speeds are obtained by means of a gear speed change (see also section
4.2.3 of this manual).
The spindle (see figure 3) is installed on the head shaft, and is
supported by two precision bearings. It is
self
-centring, with
three terminals (jaws) which permit the clamping of the workpiece
in a safe and stable way. For the opening / closing of the jaws it is
necessary to insert a special key in the housing (square cross-
section), on the outer contour of the spindle. For a more detailed
explanation on this subject, see section 10 of this manual.
The danger zone, in the vicinity of the spindle, is protected by a
moveable interlocking guard (see figure 3), which consists of a tin
screen plate with micro-safety switch.
Figure 3 – Spindle
4.2.3 Spindle speed adjustment levers
The panel for the adjustment of the spindle rotation speed (see
figure 4), is positioned at the left part of the machine, between the
spindle and the feeding speed change gearbox. It is equipped with
two levers for selection of the desired rotation speed, depending on
the type of processing and the material.
Figure 4 – Speed
adjustment lever.
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 15 of 84
4.2.4 Feed speed adjustment panel
The panel for the adjustment of the spindle rotation speed (see
figure 5), is positioned at the left part of the machine, under the
spindle speed adjustment panel. The lathe is provided with gears
that can guarantee the considerable availability of feeds and
threads (metric and inch). The selection of the steps is made using
4 rotary knob switches which control the gear speed change. There
is also a fifth knob for selecting the feed direction of the carriage.
Figure 5 – Speed
adjustment.
4.2.5 Tool holder carriage
The carriage sliding along the rails of the bed is used to hold,
position and feed the tool. The various parts (see figure 6), are
made of cast iron, with hardened and ground guides for greater
stability. The carriage is equipped with an independent system that
ensures the lubrication of the moving parts.
The handwheels to move the carriage and the levers are easy to
reach and easy to use.
Figure 6 –
Tool holder
carriage.
4.2.6 Tailstock
The tailstock (see figure 7) is constituted by a cast iron body that
ensures rigidity and stability in any conditions of use. The tailstock
body is equipped with a locking system on the lathe guides, with a
lever. An adjustment screw, allows axial alignment of the tailstock
to be achieved. Inside a steel sleeve has been fitted. Movement is
applied via a handle equipped with a micrometer. Figure 7 –
Tailstock.
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 16 of 84
4.2.7 Steady rest
In the operations of drilling, boring and facing, the tailstock can not
be used to secure the work piece.
On the other hand, if the pieces are long and heavy, it is not
enough to use only a self-centring spindle, but you must attach one
end of the work piece using a tool called a steady rest (see figure
8)
They are supplied with two rests: steady rest and follow rest
Figure 8 – Rests.
4.2.8 Electric control panel
Figure A
Figure B
Figure A
WHITE WARNING LIGHT : Indicates the presence of voltage
BLACK SELECTOR : Coolant pump selector
GREEN BUTTON :Gears application button
RED MUSHROOM : EMERGENCY STOP
Figure B
Main switch with safety key
4.2.9 Pedal brake
The machine is equipped with a mechanical brake pedal that slows or stops the rotation of
the spindle as required. Releasing the foot stops the braking action.
Figure 9 – Emergency stop.
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 17 of 84
4.2.10 Rotation reverse lever
Lever for reversing the rotation direction of the electric motor. The lever is located to the
right of the tool holder carriage.
Figure 10 – Reverse lever.
4.3 Identification plate
On the machine, and in particular on the feed speed change gearbox, there is the following
identification plate (see Figure 11):
Figure 11 – Identification plate.
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 18 of 84
4.4 Pictograms and plates
CAUTION AND WARNING PICTOGRAMS.
The following pictogram has been applied to the side of the electrical panel:
Hazard / warning plate.
Prohibitive warning for carrying out work on live equipment.
Hazard plate.
The removal of safety guards is forbidden.
Electrical hazard symbol
PLATE IN ITALIAN PLATE IN ENGLISH
ATTENZIONE
È VIETATO ESEGUIRE LAVORI SU
APPARECCHIATURE ELETTRICHE SOTTO
TENSIONE
EVENTUALI DEROGHE DEVONO ESSERE
AUTORIZZATE DAL CAPO RESPONSABILE
IN CONDIZIONI DI PARTICOLARE PERICOLO DEVE
ESSERE PRESENTE UN’ALTRA PERSONA OLTRE A CHI
ESEGUE IL LAVORO
INIZIARE I LAVORI SOLO AD AVVENUTA
ATTAZIONE DELLE MISURE DI SICUR
EZZA
In ottemperanza al Dgs.81/08 relativo alla prevenzioni
infortuni
ATTENTION
IT IS PROHIBITED TO WORK ON LIVE ELECTRICAL
EQUIPMENT
ANY EXCEPTIONS MUST BE APPROVED BY THE HEAD
MANAGER
UNDER PARTICULARLY DANGEROUS CONDITIONS,
ANOTHER PERSON MUST BE PRESENT WHO IS NOT
PERFORMING THE WORK
ONLY BEGIN WORKING WHEN SAFETY MEASURES
HAVE BEEN IMPLEMENTED
In accordance with Legislative Decree 81/08 on accident
prevention
NON
RIMUOVERE
I DISPOSITIVI DI
SICUREZZA
DO NOT
REMOVE
THE SAFETY DEVICES
Figure 12 - Pictograms
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 19 of 84
5 MACHINE SAFETY DEVICES
5.1 Electrical safety devices
The electrical circuit of the lathe is equipped with a rotary main switch with a safety key
(see chapter 9.1 of this manual). This prevents the danger of unwanted and/or accidental
starts of the machine, since the switch can only be activated through a voluntary action
suitable for the given purpose and if a suitable key is available.
The machine is also equipped with an emergency stop button (mushroom type). In an
emergency, if pressure is applied to the mushroom button, the dangerous functions stop.
The electric control panel is powered by 24V DC voltage; the presence of a transformer
minimises the the danger of electrocution.
The Lathe's power supply connection must be equipped with a grounding conductor
according to regulations.
Electric Shock
Improper connection of the Lathe and/or the grounding conductor can result in the risk of
electric shock.
The use of a lifesaving device on the power supply line is recommended. For more detailed
information, contact a trusted electrician.
Check with a qualified electrician if you don't understand the grounding instructions
or if you have any doubts about grounding the machine.
www.EngineeringBooksPDF.com

MACHINES AND
ACCESSORIES
Page 20 of 84
5.2 Mechanical Safety Devices
Protective screens
The screens and guards have the role of protecting the operator by preventing coolant, chips,
splinters, tool fragments or even the workpiece, which may detach, from being projected
towards the face or torso. The screens are fixed or mobile (see Figure 13).
Figure 13 – Position of the protective screens.
LEGEND:
1: Gearbox guard (fixed);
2: Protective screen for the spindle (movable interlocked);
The interlocking movable guards, are equipped with suitable safety switches, connected to
the machine's control system (electric circuit), so that the opening of the movable screen
causes the motion of the spindle and the dangerous moving parts to stop.
Checking the Safety devices
Each time the Lathe is used, check that the safety devices function and are positioned
properly.
In case of damage and/or breakage, do not use the machine.
Pedal brake
The machine is equipped with a mechanical brake pedal that slows or stops the rotation of
the spindle as required (ref. 1 in Figure 2).
www.EngineeringBooksPDF.com