MEP SHARK 282 Maintance Manual
USE AND MAINTENANCE MANUAL
YEAR OF MANUFACTURE: ______________
SHARK 282
EN
EN
”CE” CONFORMITY DECLARATION
(according to EEC MACHINES DIRECTIVE 2006/42/CE annex II A)
The manufacturer:
SPA
SEGATRICI
Via Enzo Magnani, 1
61045 Pergola (PU) ITALIA
Tel. 072173721--Fax 0721734533
Hereby declares that the bandsawing machine:
Machine model:
Serial number:
Year of manufacture:
SHARK 282
is in specification with the following directives:
• DIRECTIVE EEC MACHINES DIRECTIVE 2006/42/CE
• DIRECTIVE 2006/95/CE ”LVD”
• DIRECTIVE 2004/108/CE ”EMC”
Managing Director
(William Giacometti)
Introduction and technical specifications 1---1......................
Foreword 1--- 1..........................................................
Machine presentation 1---2...............................................
Machine specification 1 ---2...............................................
N am e p la t e 1 --- 2........................................................
Dimensions 1 --- 6........................................................
Functional parts 2--- 1............................................
SHARK 282 model 2 --- 1.................................................
Cutting head 2--- 2.......................................................
Vice 2 --- 2..............................................................
C on t r o l P a n el 2 --- 3......................................................
Tu r n t ab l e 2 --- 3..........................................................
Base 2 --- 4..............................................................
Safety and accident prevention 3---1................................
U s e o f t h e m a ch i n e 3 --- 1.................................................
General recommendations 3--- 2...........................................
Recommendations to the operator 3--- 3....................................
Machine safety devices 3--- 5..............................................
Reference standards 3--- 5................................................
Protection against accidental contact with the blade 3--- 6......................
Electrical equipment 3--- 6................................................
Emergency devices 3 ---7..................................................
Noise level of the machine 3---8...........................................
Noise level measurement 3--- 8............................................
Noise level values 3--- 8...................................................
Vibration emission 3 --- 9..................................................
Electromagnetic compatibility 3--- 9........................................
Machine installation 4---1........................................
Packaging and storage 4--- 1...............................................
Anchoring the machine 4---4..............................................
Minimum requirements 4---4..............................................
C he ck l is t 4 --- 5..........................................................
Balancing the cutting head 4--- 6...........................................
Connection to the compressed--- air supply (MA version) 4--- 6..................
Connection to the power supply 4 --- 7.......................................
Description of machine operation 5---1.............................
Description of the control panel 5--- 1......................................
Basic instructions for carrying out a cutting operation cycle 5--- 4................
Manoeuvring the cutting head 5--- 4........................................
Clamping the work piece in the vice 5---5...................................
Clamping the work piece in the Automatic Vice (MA version) 5---5.............
Rapid vice positioning 5---6...............................................
Rapid translation of the vice 5--- 6..........................................
Wi d t h o f c u t 5 --- 7.......................................................
Preliminary check list for cutting operation 5---8.............................
Manual operating cycle 5---8..............................................
CCS (Cut Control System) functioning cycle 5--- 11............................
A ng le d c ut s 5 --- 1 3........................................................
Angled cuts 45° to the left 5--- 13...........................................
Angled cuts 60° to the left 5--- 14...........................................
Angled cuts 45° to the right 5---16..........................................
Diagrams, exploded views and replacement parts 6---1................
Pneumatic diagram (MA version) 6--- 1.....................................
How to read the wiring diagrams 6--- 2......................................
D2--- L etter codes used to designate the type of component 6--- 4................
Standardised Wiring Diagrams (CENELEC Standard) 6--- 7...................
Exploded views 6--- 22.....................................................
Motor assembly 6--- 22....................................................
Front flywheel assembly 6---24..............................................
Motor flywheel assembly 6---26.............................................
Cutting head cover 6--- 28..................................................
Vice assembly 6--- 30......................................................
Base assembly 6--- 32......................................................
C on t r o l p a ne l 6 --- 3 4......................................................
H an dg r i p 6 --- 3 6..........................................................
Fixed work table and turntable 6--- 38........................................
Optional Cut Control System 6--- 40.........................................
Supplementary pneumatic vice 6--- 42........................................
Adjustments 7---1...............................................
Air treatment unit (MA version) 7--- 1......................................
Topping up and bleeding the cylinder (Cut Control System optional) 7--- 2........
Topping up the head cylinder 7 --- 2.........................................
Bleeding the head cylinder 7--- 3...........................................
Vice 7 --- 4..............................................................
Vice play adjustment 7---4................................................
Cutting head 7--- 5.......................................................
Blade tensioner slide play adjustment 7--- 5..................................
B la d e t e n s io n i n g u n i t 7 --- 6................................................
Adjusting operating head travel 7--- 8.......................................
Blade guide parts 7--- 9...................................................
Blade guide heads 7--- 9..................................................
Blade steady buttons 7--- 9................................................
Blade guide plates 7---9..................................................
Blade 7 --- 1 2.............................................................
Tool change 7--- 12........................................................
Blade perpendicularity 7---14..............................................
Orthogonality of the blade 7--- 15...........................................
Front flywheel 7--- 19......................................................
Motor flywheel 7--- 20.....................................................
Maintenance and choice of consumables 8--- 1.......................
The role of the operator 8--- 1.............................................
Maintenance requirements 8--- 2...........................................
General maintenance 8---2...............................................
Daily 8 --- 2.............................................................
Weekly 8 --- 2............................................................
Monthly 8 --- 3...........................................................
Maintenance of working parts 8---3........................................
Consumable materials 8 --- 3...............................................
Oil for blade tensioner cylinder 8--- 3.......................................
Oils for Cut Control System hydraulic circuit 8--- 4............................
Oil for transmission box 8--- 4.............................................
Oil for lubricant/coolant fluid 8--- 4.........................................
Oils for spray mist system (optional) 8--- 4...................................
Cutting speed and choice of tools 9---1..............................
Cutting speed 9---1......................................................
Standard machine 9--- 1..................................................
Machine with 4/8 pole motor (optional) 9---1................................
Machine with Inverter (optional) 9---2......................................
Choice of blade 9--- 3....................................................
Saw tooth pit ch 9--- 3.....................................................
Cutting speed and downstroke speed 9--- 4..................................
Ty p es o f s w ar f: 9 --- 4.....................................................
Lubricant/coolant fluid 9--- 5..............................................
Blade structure 9--- 6.....................................................
B la d e t y p e s 9 --- 6........................................................
C on v e n ti o n a l r a ke 9 --- 7..................................................
Po s i t iv e r a k e 9 --- 7.......................................................
Va r i a bl e p i t c h 9 --- 7......................................................
Variable pitch blades with 0° cutting angle 9---8..............................
Variable pitch with positive rake (from 9 to 10 degrees) 9---8...................
Set: 9 --- 8...............................................................
Standard or splayed set 9 --- 8..............................................
U n d ul a t e d s e t 9 --- 9......................................................
Alternating grouped sets 9--- 9.............................................
A lt er n a t in g s et 9 --- 9.....................................................
Blade selection table relating to cutting speed and downstroke speed 9--- 10.......
Classification of steels 9---11...............................................
Classification of steels 9---12...............................................
Troubleshooting 10---1............................................
Troubleshooting blade and cutting problems 10--- 1............................
Troubleshooting machine faults 10 ---8.......................................
Accessory Installation 11 --- 1.......................................
Automatic vice kit 11---1..................................................
Blade 1 1 --- 2.............................................................
Cut Control System 11---2.................................................
Electronic rpm variator (inverter) 11---3.....................................
Rodmarkedoffinmillimetres 11---5........................................
Roller table 11--- 6........................................................
Support for the roller platform on t he feeding/discharging side 11 --- 7.............
Discharge side roller table adaptorAdattatore pianale a rulli lato scarico 11---8....
1-- 1
Introduction and
technical
specifications
Foreword
MEP S.p.A.,in response to modern production techniques, has developed the new
SHARK 282.
This work tool has been designed to satisfy the wide range of cutting needs of a
modern workshop with simplicity and reliability, while at the same time
complying with all EEC safety standards.
The SHARK 282 is structurally rigid, silent and safe: it produces a minimum of
waste (1.2 mm) while its great versatility makes it suitable for cutting various
materials such as stainless steel light alloys, aluminium, copper and bronze at
high speed and with high precision.
Its high cutting capacity, combined with the possibility of making inclined cuts
from 60° left to 45° right, make this model the ideal solution for satisfying the
wide strange of cutting needs of machine shops, turneries, structural steel shops
and engineering workshops.
We congratulate our clients on having chosen this product, which will give
effective and faithful service for many years, especially if the instructions
contained in this use and maintenance manual are carefully followed.
This cutting machine has been designed and made specifically for cutting
metallic materials.
Warning
1
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Use and maintenance manual SHARK 282
Machine presentation
Functioning is completely manual: the operator, after having checked the
workpiece in the vice, grips the control lever and presses the bandsaw start
microswitch; with a downwards movement, the material is cut to the preset
length; the cutting head returns up at the end of the cutting operation, ready to
start a new work cycle.
In the MA version (Automatic Vice), a pneumatic cylinder applied on the vice
blocks the material between the jaws: the open/close control is located on the
base of the machine.
With the CCS accessory (Cut Control System), the machine can also perform a
semi---automatic work cycle. The operator, after using the selector located on the
control panel to choose the semi---automatic work cycle, clamps the material in
the vice and presses the button on the cutting head handgrip to start up the
bandsaw; the saw begins turning and the head commences its downstroke, the
speed of which can be adjusted using the control valve (head downstroke speed
regulator) located on the control panel. The head performs the cutting operation;
once the cut has been made, a limiter stops the cutting cycle, after which the head
is manually returned to its upper position so that, when a new workpiece is in
place, a new cycle can be started using once more the handgrip button.
Both the Automatic Vice and the Cut Control System are optional for the
SHARK 282 model; they can be factory installed on request made during the
ordering procedure, or may be installed by the user after the machine has
been bought.
Machine specification
Name plate
Theanodisedaluminiumnameplateisrivetedonthesideofthemachine;the
same data are reproduced on the declaration of conformity included with this use
and maintenance manual.
MODELLO
SHARK 282
MA TRICOLA
ANNO DI COSTRUZIONE
MEP SP A Via Enzo Magnani, 1
61045 Pergola (PU) Italy
tel: 0721/73721
When communicating with the Technical Service department, the model, serial
number and year of manufacture of the machine must be quoted.
Warning
N.B.
1-- 3
3
Introduction and technical specifications
CUTTING SPEEDS
1st Slow Speed mt/min
36
2nd Fast Speed mt/min
72
All models can be equipped with the Inverter, an optional device, which offers
a range of speeds comprised between 20 and 90 mt/min As the machine is
predisposed for the Inverter, it can be installed by the client or factory
pre-- installed on request made during the ordering procedure.
BAND SAW
Rated size mm
2950 x 27 x 0,9
Max/min blade length mm
2960÷2940
Blade height mm
27
Blade width mm 0,9
Band saw tension bar/kg
70 / 900
When choosing the cutting tool, if its dimensions do not correspond to those
included in the “Rated size” section, check that the dimensions at least fall
within the admissible max/min specifications.
RATED ELECTRICAL POWER
Head spindle motor kW 1,8/1,5
Electric coolant pump motor kW 0,06
Max installed power kW 1,86
WORKING PRESSURE MODEL MA (Automatic Vice)
Max. working pressure for opening/closing vice Bar 6
Air consumption for a complete cycle Nl/min 1,34
The “air consumption” value refers to standard conditions (temperature 0° and
pressure 1.013 bar, i.e. density 1.3 x 10
-- 3
Kg/l) where 1 Kg/min. = 772 Nl/min.
LUBRICANT/COOLANT FLUID AND OIL
Oil for blade tensioner unit VL 0,5
Oil for transmission box capacità Kg 0,32
Oil for optional Cut Control System cylinder
capacità Lt. 0,7
Lubricant/coolant fluid (oil concentration 5---6%) capacità Lt 13
VICE
Vice max. opening mm 285
Warning
Attention
N.B.
MEP S.p.A.
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Use and maintenance manual SHARK 282
SPINDLE MOTOR
No.of poles Current (Volts) Absorption
(Amps)
Power (Kw) rpm Band saw
speed
2/4 400 5,6/4 1,8/1,5 2.860/1400 72/36 mt/min
4/8 optional 400 3,1/2,7 1,1/0,55 680/1330 36/18 mt/min
Stator wound with enamelled copper wire, class H 200° C.
Class F insulation (limit temperature TL 155° C).
IP 55 protection rating (total against contact with live parts, water sprayed from all directions, with shaft oil
seal).
Conforming to CEI norms, publication: IEC 34 of 01/07/1985.
Example of class F insulation: in air-- cooled machines at an ambient
temperature of 40° C (according to CEI 2-- 3 and IEC 85), the allowable
overtemperature is 100° C (where
ٛ
100 C represents the allowable DT).
The machine is supplied with a 2/4 pole three phase motor giving 2 band saw
speeds:
-- 1ª speed (4 poles) = 36 mt/min
--- 2ª speed (2 poles)= 72 mt/min;
The OPTIONAL 4/8 pole motor gives speeds of 36/18 mt./min.
ELECTROPUMP MOTOR
Single phase; Frequency 50 Hz.
Voltage ( Vo l t s ) Absorption
(Amps)
Power (Kw) rpm Delivery rate
lt/min
Head (mt.)
230 0,40 0,06 2800 11 1,5
400 0,20 0,06 2800 11 1,5
Protection rating IP 55.
Conforming to CEI norms, publication: IEC 34 of 01/07/1985.
CUTTING CAPACITY
Section
0° 250 220 280 x 220
45° a 230 200 220 x 200
60° a 120 80 140 x 80
45° ' 200 170 200 x 140
N.B.
Warning
1-- 5
5
Introduction and technical specifications
PACKED WEIGHT
Wooden cage and pallet kg 70
Wooden pallet kg 20
1700
1000
1900
MEP S.p.A.
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Use and maintenance manual SHARK 282
Dimensions
MACHINE INSTALLED
Work table h e i g h t mm 870
Weight kg 440
900
700470 410
550
170
1800
1830
870
1315
2-- 1
Functional parts
SHARK 282 model
In order for the user to move towards a full understanding of how the machine
works, which is described in detail in the chapter 5, this chapter deals with the
main units and their locations.
CUTTING HEAD
CONTROL
PANEL
VICE
TURNTABLE
BASE
2
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Use and maintenance manual SHARK 282
Cutting head
The cutting head is the unit that cuts the material. It consists of a cast iron head
on which the following are mounted: the band saw, the blade guide components,
the blade tensioner components, the transmission box and the spindle motor. The
cutting head is limited in its movements by the joint on the work table, and its
cutting stroke is manually guided by the operator.
Motor
Head joint pivot
Blade guide
heads
Blade guide head
plate
Handgrip
Handwheel
Transmission box
Vice
The vice is the unit that clamps the workpiece in place during cutting; it consists
ofavicesupport,commonlyknownasaleadnut,fixedtotheworktable,anda
lead screw with a slideway on which the mobile jaw is mounted. The vice is
operated manually by a handwheel, or by a pneumatic cylinder in the MA version
(optional).
Turntab l eSlidewa
y
Handwheel
Fixed platform
Vice support (lead nut)
2-- 3
9
Functional parts
Control Panel
The control panel has a protection rating of IP 54 and contains the electrical
equipment. Access is gained by removing the screws fastening a safety panel,
while the operator’s safety is guaranteed by a key ---operated safety switch,
designed to prevent any intentional interference with the unit. In order to remove
the panel from its mounting, the main switch has to be shifted to 0 (OFF), which
automatically cuts off the electrical supply.
Control panel
Main switch
Panel fastened by
screws
Turnta ble
A cast iron casting forms the fulcrum for the cutting head, and the support for the
work table and the control panel. Releasing the locking lever on the slideway
allows the cutting head to be rotated to the right and to the left.
Cutting head mechanical limiting
switch
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Use and maintenance manual SHARK 282
Base
On opening the door in the base, you will find the air treatment unit (optional
extra only on versions with MA automatic vice) and the drawer with the coolant,
complete with electric pump.
Lubricant/coolant tank
Electric pump
3-- 1
Safety and accident
prevention
The SHARK 282 has been designed and produced in accordance with European
standards. For the correct use of the machine we recommend that the
instructions contained in this chapter are carefully followed.
Use of the machine
The SHARK 282 band saw cutting machine is intended exclusively for cutting
metallic materials, ferrous or non---ferrous, in section or solid.
Other types of material and machining are not compatible with the specific
characteristics of the saw.
The employer is responsible for instructing the personnel who, in turn, are
obliged to inform the operator of any accident risks, safety devices, noise
emission and accident prevention regulations provided for by international
standards and national laws regarding the use of the machine. The operator must
be perfectly aware of the position and function of all the machine’s controls.The
instructions, warnings and accident prevention standards in this manual must be
respected without question by all those concerned.The following definitions are
those provided for by EEC MACHINES DIRECTIVE 2006/42/CE :
H “Danger zone”: any zone in and/or around a machine in which the presence of a
person constitutes a risk for the safety and health of that person.
H “Person exposed”: any person finding himself either completely or partly in a
danger zone.
H “Operator”: the person or persons given the responsibility of installing, operating,
adjusting, maintaining, cleaning, repairing or transporting the machine.
The manufacturer declines any responsibility whatsoever, either civil or
criminal, should there be unauthorised interference or replacement of one or
more parts or assemblies on the machine, or if accessories, tools and
consumable materials are used that are different from those recommended by
the manufacturer itself or if the machine is employed in a plant system and its
proper function is thereby altered.
Attention
3
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Use and maintenance manual SHARK 282
General recommendations
LIGHTING
Insufficient lighting for the types of operation envisaged could constitute a safety
hazard for the persons concerned. For this reason, the machine user must provide
lighting in the working area sufficient to eliminate all shadowy areas while also
avoiding any blinding light concentrations. (Reference standard ISO 8995---89
“Lighting in work environments”).
CONNECTIONS
Check that the power supply cables and pneumatic feed systems comply with the
maximum machine absorption values listed in the “Machine Specification” tables;
replace if necessary.
EARTHING
The installation of the earthing system must comply with the requirements set out
in IEC STANDARD 204.
OPERATOR POSITION
The position of the operator controlling machine operations must be as shown in
the diagram below.
3-- 3
13
Safety and accident prevention
Recommendations to the operator
Always wear proper goggles or protective glasses.
Do not use the machine without the guards in position. Replace the
polycarbonate windows, if subject to corrosion.
Do not allow hands or arms to encroach on the cutting zone while the
machine is in operation.
Do not wear oversize clothing with long sleeves, oversize gloves,
bracelets, necklaces or any other object that may become entangled in
the machine during working; long hair must be tied back and bunched.
Alwaysdisconnectthepowersupplytothemachinebeforecarryingout
any maintenance work whatsoever, including in the case of abnormal
operation of the machine.
Before starting cutting operations, support the material at both ends of
the machine using the support arm --- standard, or OPTIONAL
accessories such as the feed and discharge roller tables shown in the
diagram below. Before removing the devices supporting and moving the
material, fasten the latter in place using the machine’s clamping devices
or other sui table equipment.
mm 1500
mm 1500
FEED ROLLER TABLE DISCHARGE ROLLER TABLE
Any maintenance work on the hydraulic or pneumatic systems must be
carried out only after the pressure in the system has been released.
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Use and maintenance manual SHARK 282
The operator must not perform any risky operations or operations not
required for the machining operation under way (e.g. remove swarf or
metal shavings from the machine while cutting).
Remove equipment, tools or any other objects from the cutting zone;
always keep the working area as clean as possible.
Before starting any cutting operations, ensure that the workpiece is
securely held in the vice and the machine has been set correctly. A
number of examples of how to clamp different profiles correctly in our
machines are shown below.
Do not use the machine to cut pie ces that exceed the capacity of the
machine as listed in the machine specifications.
Never move the machine while it is cutting.
Do not use blades of different sizes to those recommended in the
machine specifications.
When cutting very short pieces, make sure that they are not dragged
behind the support shoulder, where they could jam in the blade.
When using the pneumatic vice (MA version) check that the jaws move
right up to and effectively clamp the workpiece, as the maximum travel is
only 8 mm, and check that the clamping procedure is correct.
When working on the band saw, wear gloves only when handling
materials and for tool changing or adjustment operations. Only perform
one operation at a time and do not hold more than one item or operate
more than one device simultaneously. Keep hands as clean as possible.
Warning: if the blade jams in the cut, press the emergency stop
push---button immediately. If this does not free the blade, slowly loosen
thevice,removethepieceandcheckthebladeorbladeteethfor
breakage. Replace the blade if necessary.
3-- 5
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Safety and accident prevention
Before carrying out any repair work on the machine, consult the MEP
Technical Assistance Service: this can be done through a representative
in the country of use of the machine.
Adjustmentoftheblade---guideheadmustonlybecarriedoutwiththe
machine at a standstill.
Machine safety devices
This use and maintenance manual is not intended as purely a guide for the use of
the machine in a strictly productive environment, it is instead an instrument
providing information on how to use the machine correctly and safely. The
following standards are those specified by the EEC Committee in the directives
regarding safety of machinery, health and safety at work, personal protection and
safeguarding of the environment. These standards have been applied to the
SHARK 282 band saw.
Reference standards
MACHINE SAFETY
H EEC MACHINES DIRECTIVE 2006/42/CE ;
H EEC directive no. 2004/108/CE “EMC -- Electromagnetic Compatibility”;
H EEC Directive No. 2006/95/CE known as “Low voltage directive”.
HEALTH AND SAFETY AT WORK
H EEC Directive No. 80/1107; 83/477;86/188;88/188; 88/642 for the protection of
workers against risks caused by exposure to physical, chemical and biological
agents during working;
H EEC Directive No. 89/391 and Special EEC Directives No. 89/654 and No. 89/655
for improvements in health and safety at work;
H EEC Directive No. 90/394 for the protection of workers against risks deriving from
exposure at work to carcinogenic substances;
H EEC Directive No. 77/576 and No. 79/640 on safety signs at work.
PERSONAL PROTECTION
H EEC Directive No. 89/656 and No. 89/686 on the use of personal protection
devices.
ENVIRONMENTAL PROTECTION
H EEC Directive No. 75/442 on waste disposal;
H EEC Directive No. 75/439 on the disposal of used oil.
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Use and maintenance manual SHARK 282
Protection against accidental contact with the blade
1. Metal guard screwed to the rear blade guide head (machine side);
2. metal guard screwed to the front blade guide head (operator side);
3. front head sliding support: when the head is at maximum aperture, the
support ensures that the blade is covered, leaving free only the part of the
blade engaged in the actual cutting, in accordance with Presidential Decree
no. 547/55, art. 108;
4. hinged protective cover over blade, fitted with “removable” closing devices;
5. blade guide plates completely covering the blade teeth;
6. the cutting vice is activated by pneumatic devices, with a maximum stroke of 8
mm. The jaw that locks the workpiece in position, must be brought to within
2÷3 mm of the workpiece.
5
2
1
6
4
3
Electrical equipment
In accordance with Italian standard CEI 60204---1, April 1998, derived from
European Standard EN 60204 ---1 publication IEC 204---1, 1997:
H Access to electrical control panel limited by screws and panel ---lock device,
allowing panel to be opened only after the electricity supply has been turned
off;
H 24 Vac Control voltage for actuators, in accordance with chapter 6 or
European Standard “Control and indication circuits”, paragraph 2 “Control
Circuits” sub---section 1 “Preferential voltage values for control circuits”;
H plant short---circuit protection by means of rapid fuses, earthing of all plant
parts connected with work as well as all foreseeable accidental contact; a
thermal --- magnetic overload cutout switch shuts down the motor;
H protection from accidental start---up by a minimum voltage relay in case of
power failure.
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Safety and accident prevention
Emergency devices
In accordance with Standard CEI 204---1:
H Chapter 5 Section 6 Sub--section 1 “Emergency stop device”: «the emergency
stop device immediately stops all the dangerous and other functions of the
machine»;
H chapter 6 Section 2 Sub--section 4 Point 7 “Protective guards”: «the removal of
protective guards designed to prevent access to dangerous parts or zones causes the
machine to stop immediately; replacing the guards does not restart the functions,
which must be reset».
...Emergency devices applicable to the SHARK 282:
1. Emergency stop: a non--- return mushroom---head pushbutton, colour red on
yellow background, is located on the control panel of the machine. To release
the pushbutton, the actuator must be rotated 45° . After the emergency
situation has been resolved, the machine must be reset.
2. Automatic thermal---magnetic cutout switch with thermal--- magnetic relay:
the machine auto switch, located on the control panel, has two protection
systems against voltage drops. In the case of a voltage drop, all electrical
components are disengaged, the machine stops immediately, and automatic
restart when the power supply returns is inhibited. Another function is that of
resetting the thermal relay provided to protect against overcurrents.
3. Pressure contact for monitoring blade tension: the machine stops
immediately if the blade breaks or if the tensioner cylinder pressure drops.
4. Protective guard for blade: a coded key microswitch is operated if the blade
cover is accidentally or intentionally opened during the machine operating
cycle, immediately shutting down all functions.
1
2
3
4
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Use and maintenance manual SHARK 282
Noise level of the machine
Noise can cause hearing damage and represents one the problems faced by many
countries who adopt their own standards. In accordance with the EEC
MACHINES DIRECTIVE 2006/42/CE , we are listing the standards that specify
noise levels for machine tools. This chapter also reports the noise levels produced
by the SHARK 282 during its various operating phases and the methods used for
measuring these levels. The Italian standard governing this aspect is
D.M.n.277/91 drawn from EEC Directives 80/1107, 82/605, 83/477, 86/188, 88/642,
UNI EN ISO 4871 (1998).
Noise level measurement
Noise levels are measured using an instrument known as an Integrator
noise---meter which registers the equivalent continuous acoustic pressure level at
the work station.The damage caused by noise depends on three parameters: level,
frequency and duration. The equivalent level concept Leq combines the three
parameters and supplies just one indication. The Leq is based on the principle of
equal energy, and represents the continuous stationary level containing the same
amount of energy, expressed in dBA, as that actually fluctuating over the same
period of time.This calculation is made automatically by the integrator
noise---meter. The measurements are taken every 60 seconds, in order to obtain a
stabilised value. The reading stays on the display for a sufficient time to enable a
reading to be taken by the operator.Measurements are taken by holding the
instrument at approximately 1 metre from the machine at a height of 1.60 metres
above the platform at the operator’s work station.
Two measurements are taken: the first while the machine operates without cutting
anything, the second while cutting in manual mode.
Noise level values
Identification
Machine type Band saw for metal applications
Model
SHARK 282
Reference standard ISO 3746
Results
Te st 1st
Description
C 40 steel cut --- pipe 50x82 mm
Bimetal band 2950x27x09 S.GLB Z 5/7
Results
Mean sound level (Leq) 79,65 dB (A)
Environmental correction (K) 3,71 dB(A)
Peak sound power (Lw) 91,27 dB(A)
Test 2nd
Descriprion
C 40 steel cut --- solid rod 150 mm dia. Ø
Bimetal band 2950x27x09 M42 Z 3/4
Results
Mean sound level (Leq) 78,43 dB(A)
Environmental correction (K) 3,71 dB(A)
Peak sound power (Lw) 88,64 dB(A)
Test 3rd
Description
34CND6 material cut ---pipe 140x130 mm
Bimetal band 2950x27x09 S.GLB Z 10/14
Results
Mean sound level (Leq) 78,57 dB(A)
Environmental correction (K) 3,71 dB(A)
Peak sound power (Lw) 89,32 dB(A)
3-- 9
19
Safety and accident prevention
Vibration emission
This sawing machine complies with the norms EN1299 and EN1033, as the
machine vibration emission on the devices controlled by the operator does not
exceed the threshold of 2.5 m/s
2
Electromagnetic compatibility
As from 1 January 1996 all electrical and electronic appliances bearing the CE
marking that are sold on the European market must conform to Directive
2004/108/CE and 2006/95/CE and 2006/42/CEE. The prescriptions regard two
specific aspects in particular:
1. “EMISSIONS: during its operation, the appliance or system must not emit spurious
electromagnetic signals of such magnitude as to contaminate the surrounding
electromagnetic environment beyond clearly prescribed limits”;
2. “IMMUNITY: the appliance or system must be able to operate correctly even when
it is placed in an electromagnetic environment that is contaminated by disturbances
of defined magnitude”.
The following text contains a list of the applied standards and the results of the
electromagnetic compatibility testing of machine model SHARK 282; Test report
no. 061200.
Emissions
H CEI EN 61000--6--4 (2002) Electromagnetic Compatibility (EMC) -- Generic
standard regarding emissions. Part 6--4: Industrial Environment.
H EN 55011 (1999) Industrial, scientific, and medical radio frequency appliances
(ISM). Characteristics of radio frequency disturbance -- Limits and methods of
measurement.
H EN 55014--1 (2002) Electromagnetic Compatibility -- Prescriptions for domestic
appliances, electric power tools, and similar equipment. Part 1: Standard Emission
in relation to product family.
CONDUCTED EMISSIONS
Gate A Freq. (MH z) Q --- p e a k l i m i t ( dB u V ) Mean value limit (dBuV) Result
A.C. power supply
input
0.15 --- 0.5
0 .5 --- 5
5 --- 3 0
79 --- 73
(linear reduction with
log of frequency)
73
73
66 --- 60
(linear reduction with log of
frequency)
60
60
Complies
CONDUCTED EMISSIONS --- A NALYSIS OF INTERMITTENT DISTURBANCES
Gate Result
A.C. power supply input Not applicable
MEP S.p.A.
3-- 1020Use and maintenance manual SHARK 282
IRRADIATED EMISSIONS
Gate Freq. (MH z) Q--- peak limit (10 m)
(dBuV/m)
Result
Enclosure 30 --- 230
230 --- 1000
40
47
Complies
Immunity
H CEI EN 61000--6--2 (2000) Electromagnetic Compatibility (EMC) -- Generic
standard on immunity. Part 6--2: Industrial Environment.
The EUT is deemed to fulfil the immunity requirements without testing, because
it contains no electonic control circuitry.
4-- 1
Machine installation
Packaging and storage
MEP S.p.A. use packing materials that guarantee the integrity and protection of
the machine during its transport to the customer.
The type of packing differs according to the size, weight and destination.
Therefore the customer will receive the machine in one of two following ways:
1. on a pallet with straps and heat---shrink plastic;
2. on a pallet with straps, heat ---shrink plastic and a wooden crate.
In both cases, for correct balancing the machine must be handled using a
fork-- lift truck, inserting the tines at the points indicated by the arrows, using
the reference marks on the crate itself.
Before carrying out lifting operations, make sure that the weight of the
machine, as indicated on the crating or other packaging, is within the forklift
truck load limit.
Warning
Attention
4
MEP S.p.A.
4-- 2
22
Use and maintenance manual SHARK 282
Do not handle the packed machine using slings.
When storing, machines palletized and shrink--wrapped must not be stacked
two high, and machines pallettized and crated must not be stacked three high.
To install the machine, first remove the packing, paying particular attention not to
cut any electric wires or hydraulic hoses; if necessary use pliers, a hammer and a
cutter.
Open crate in the illustrated order:
Attention
Attention
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