Operating Manual

hegner

Important: In order to prevent accidents, read the operating instructions before commissioning and use.
Always keep the operating instructions available by the machine !

CE-Confirmation

for Universal Fret Saws/Scroll Saws

Type: MULTICUT-1 MULTICUT-2S MULTICUT-SE MULTICUT-QUICK

EC-Regulation 89/392/EEC (machine standards), latest alteration by EC-standards 93/68
EC-Regulation 73/23/EEC (low voltage standards), latest alteration by EC-standards 93/68
EC-regulation 89/336/EEC (electromagnetic compatibility), latest alterion by EC standard 93/68

The following rules were applied to when constructing and building the machines:

Harmonised standards:

EN 292-1
EN 349
EN 292-2
EN 60204-1
EN 294

European Standards and Standard Designs:

EN 60529
prEN 31020
EN 954
EN DIN 50081-2
EN ISO 23746
EN DIN 50082-2

National Standards and Standard Designs:

VBG 7j

Electronic emission according to:
EN 55014:1993= DIN EN 55014 /VDE 0875 Part 14
EN 60555 Part 2 and Part 3:1987

Immunity from interferences according to: EN 55014:1995

The above machine was tested according to paragraph 3 of the GSG (safety security law) and a "GS-Certificate with the number 031037" was issued by:

Fachausschun holz
PrUf- and Zertifizierungsstelle im BG-PRUFZERT
Vollmoellerstrasse 1
D-70563 Stuttgart

Hegner Prazisionsmaschinen GmbH

VS-Schwenningen, 1st November, 1997
roghammer Manager

hegner

Preface

The machines

Multicut-1
Multicut -2S
Multicut-SE
Multicut-Quick

are designed for professional as well as private use.

The machines have been designed exclusively for the sawing of wood, plastics, non-ferrous metals, soft iron and mild steel by means of fret saw and piercing sawblades with a length of 130mm (5 in).

This manual of operating instructions is designed to acquaint you with the knowledge required for the commissioning and use of the machine.

You will find important information on the safe handling and proper use of the machine.

Please read these Instructions carefully and take special note of the guidelines and warnings!

In case of improper use of the machine and non-observance of the warnings and guide-lines given in these operating instructions, the manufacturers warranty is invalidated.

If you have any questions after reading these operating instructions, please contact your dealer.

Hegner Prazisionsmaschlnen GmbH

Symbols and their meaning

This symbol marks text with very important information and in many cases gives information for your safety! It is absolutely necessary that you take note of this Information!
This symbol points to texts containing comments, guidelines or tips. It refers to a chapter, sub-chapter, page or picture.
This symbol points to references to supple-mentary information about the current topic.
This dot marks the description of operations which you should carry out.

Index :

1.0	Technical information
2.0	Delivery of the machine
3.0	Operating instructions
4.0	Machine use
5.0	Guidelines
6.0	Remaining risks
7.0	Unpacking / Setting up
8.0	Commissioning / Decommissioning
9.0	Changing sawblades
10.0	Sawblade change with internal cuts
11.0	Swivelling the table
12.0	Adjusting the stroke length
13.0	Connecting a dust extractor
14.0	Maintenance / Cleaning
15.0	Repairs / Spare parts
16.0	Application guide lines
17.0	Speed selection
18.0	Operating problems and their causes

1.0 Technical Characteristics

Multicut-1
Depth of throat	365 mm
Cutting clearance	50 mm
Maximum depth of cut (wood)	50 mm
Size of table	435 x 230 mm. 45° swiveling
Depth & width	520 x 270 mm
Blade stroke length	12 and 15 min
Motor	230V-. 50Hz. 100Watt power output
Weight	approx. 16 kg nett
Blade length	130 mm (5 in)
Suction pon	o 35 mm
Mains fuse	3 A Or 5 A fuse

Multicut-2S/SE
Depth of throat	460 mm
Cutting clearance	65 mm
Maximum depth of cut (wood)	65 mm
Size of table	435x230 mm. 454/12? swivelling
Depth & width	610x280 mm
Blade stroke length	12 and 19mm
Motor	230V-BOHz.100Watt power output
Weight M2S/ SE	approx. 19 Kg nett/ 23 Kg nett
Blade length	130 mm
Suction port	0 35 mm
Mains fuse	3 A or 5 A fuse

Multicut-Quick
Depth of throat	560 mm
Cutting Clearance	65 mm
Maximum depth of cut (wood)	65 mm
Size of table	435x230 mm 459/129 swivelling
Depth & width	730x290 mm
Blade stroke length	12 and 19mm
Motor	230V- 50Hz. 100Watt power output
Weight	approx. 29 Kg nett
Blade length	130mm
Suction port	0 35 ram
Mains fuse	3 A or 5 A fuse

1.1 Ratings for the extraction system

Exhaust volume when fitted to 0 35mm hose: 70 m3
Existent depression with an air speed of 20m/s: 1666 Pa

The dust emission values, measured according to the precepts for the testing of the dust emission (workpost-related dust concentration) of wood working machines of the professional comittee for wood, are distinctly under the presently valid limit of 2.0 mg/m3.

1.2 Emission of Noise

Measurement Conditions:

prEN 31202 for the workpost-related emission values.
With the following supplements determined by TC 142 in order to obtain an exactness class better than 3 dB.
The environmental correction factors K2A respectively K3A are < 4dB.
The difference between extraneous noise sound level and noise sound intensity level is < 6 dB each metering point.
K3A is calculated according to annex A, prEN 31204.
An ashlar-type enveloping surface with 9 metering points is utilised in a distance of 1 m from the reference surface.

Workpiece: pine wood; dimensions 150 x 100 x 20mm (sanded all over)

Tool: Fret Saw Blade Dimensions: depth 1,5 mm, width 1 mm. The determined noise emission values are:

Acoustic capacity level [ dB (A) ]
Idle running: 64,1 dB
Machining: 74,5 dB

Statement to the noise emission levels: The given values are emission levels and do not correspond in every case to the save working place related values. Although there is a relation between emission and imission levels, it is perhaps necessary to take additional safety measures. Factors which have a certain influence to the actual imission level are the duration of the exposure, the kind of work-shop and some other influences. The acceptable limits do also depend on the different countries. This information should give a better possibility to the user of the machine to classify the hazards and risks.
Source: EN 292-Part 2
The real noise emission can deviate from the given values in a range of 4 dB(A) due to specific influences of the workshop.

2.0 Delivery of the machine

Check the machine upon receipt
- Damage to the machine
- Contents against delivery note
- Examine the packaging for small parts

If there is any damage or discrepancies contact your supplier immediately!

3.0 Operating instructions

Read the operating instructions carefully before commissioning and using the machine. If the machine is not used in accordance with the operating instructions the manufacturers warranty is void.

4.0 Machine use

This machine has been designed for the sawing of wood, plastics, non-ferrous metals and mild steel by means of fret saw (scroll saw) and piercing sawbiades 130mm (5 in) long.
Use for any other purpose has not been catered for.
This machine must only be used by persons who have read these instructions and are familiar with the safety requirements and dangers associated with its use.
The relevant safety procedures outlined in these instructions must be observed.
Only original HEGNER spare parts must be used.
Damage which occurs due to the use of spare parts which are not original HEGNER parts, will invalidate the manufacturers warranty.
Modifications to the machine or usage for any purposes than those for which the machine was designed will invalidate any liability of the manufacturer.

5.0 Safety guidelines

5.1 General safety guidelines

-Keep people other than the operator away from the machine. Children should only be allowed to use the machine under super-vision.
-Do not touch any moving parts.

5.2 Commissioning

Check that the voltage on the motor plate corresponds with the voltage of the electricity supply.
Connect a dust extractor. 13.0 Connecting a dust extractor
Check work area is well ventilated.

5.3 The operator

In order to minimise the risk of accident with the machine, read the operating instructions carefully.
Never work under the influence of drugs, alcohol or medicine.
Never use loose fitting clothing. Always use eye goggles.
Do not wear jewellery.

5.4 Before starting work

Insure that the machine is switched off. 8.3 Switching the machine off
Insure that the fitted sawblade is appropriate for the work.
Check that the sawblade is tensioned
Check that all appropriated guards are fitted correctly.

5.5 During work

Only remove swarf dust and chips when the machine is switched off.
In case of a power failure return the power switch to the OFF position.

5.6 After work

Switch the machine off and pull the mains plug.

6.0 Remaining risk

Even when adhering to all the relevant safety rules the following remaining risks can occur because of the nature of the machine.

Touching the sawblade
Breakage of the sawblade
Touching live parts due to
- damaged terminal box
- damaged capacitor
- damaged cable
Hearing impaired due to working for long periods without ear protection.
Inhaling dust and endangering your health.

7.0 Unpacking & setting up

7.1 Unpacking

Picture 7-1
Lift the machine out of the packing as shown in the picture.
Do not lift by the upper arm (1)

7.2 Setting up

Picture 7-2
Place the machine on a stable surface which is solidly constructed and without loose joints with room to approach the machine from the front with plenty of free space.
- The height of the surface should be sufficient to allow the operator to use the machine with his/her back in an upright position. The elbow of the operator should be at the height of the machine table surface.
Secure the machine to the surface
- either with two coach screws, secured from the top through the two holes (1) in the baseplate of the machine
- or with 3 M10 bolts screwed through from under the mounting surface into the threated holes (2). We recommend our machine stand (optional acces-sory), especially constructed for our fret saws.

7.3 Ambient conditions

The machine should be installed in a place which is

vibration free
dry
free from gas and vapour
free from mineral dust
well ventilated

7.4 Electrical installation

The electrical power supply must conform to the stan-dards required by law and match the power requirements of the machine!

1.0 Technical Characteristics
Make sure that the mains switch on the machine Is in the OFF position!
8.3 Switching the machine on
Connect the mains plug to the supply socket.
Make sure that the lead
- does not foul the work
- will not cause operator to trip up

8.0 Commissioning/De-commissioning

8.1 Commissioning the machine

We assume that

you have read the proceeding instructions (particularly 5.0 Safety guidelines). If not, please do it now before proceeding from here!
the machine has been installed and connected to the mains properly
that all tools and materials have been removed from the work area
the machine is undamaged and correctly mounted.
Check that the clamped in sawblade is straight!
A bent sawblade is unserviceable and should be nw replaced with a new one.
9.0 Changing a sawblade

8.1.1 Tensioning the sawblade

Picture 8-1
Check that the quick action blade tensioning lever (1) is in the tensioned position. (Not with the Multicut-1 machine)
Tension the sawblade using the tensioning knob (2)

Turn the tensioning knob (2) clockwise to increase the tension until the blade is tensioned. When the blade is tensioned correctly you should be able to move the blade about 1mm forward and back at table level.

8.1.2 Untensioning the sawblade

Picture 8-1
Untension the sawblade only when the machine is switched off!

Untension the sawblade by pulling the quick action tension lever (1) forward on the Multicut-2S, -SE and Quick. On the Multicut-1 turn the tensioning knob (2) about three complete turns anti-clockwise.

8.1.3 Vacuum cleaner /dust extraction system

Picture 8-1
Put the end of the dust extractor hose into the tapered pod (3) so that it fits tightly.
Take care that protection hood (4) is folded upwards!

8.2 Switching the machine on

Picture 8-3

Attention: The machine will start to function as soon as it is switched on!

Remove all tools, workpieces, dust and debris from the work table!
Connect the machine to the mains supply and switch on the machine with the main switch (1) pressing the rocker at the bottom ( I ).
Switch on the dust extractor.

8.3 Switching the machine off temporally

Picture 8-4
Switch the machine off using the main switch (1) by pressing the rocker at the top (0) .
Switch off the dust extractor.
Remove all tools, workpieces, dust and debris from the work areal

8.4 Taking the machine out of operation

when you have finished using the machine and are leaving the workshop

Ensure that the machine is switched off at the main switch (1) by pressing the rocker at the top (0) and isolate from the power supply.
Untension the sawblade.
Remove all tools, workpieces. dust and debris from the work area!

9.0 Changing the sawblade

9.1 Isolating the machine

8.4 Taking the machine out of operation

9.2 Untension the sawblade

8.1.2 Untensioning the sawblade
Carry out this procedure even if the blade is broken.

9.3 Tilt the protection hood down

Picture 9-1
Fold the protective hood (1) down
Remove any chips from the protective hood

9.4 Removing the blade from the machine

Picture 9-2
Turn the knurled screw anti-clockwise until it is just below the underside of the blade retainer.
Picture 9-3
Press the upper arm gently downwards until the upper blade clamp can be slipped out of the clamping fixture.
Picture 9-4
Press the clamping spring on the bottom arm down and take the blade and its clamps out of the machine.

9.5 Taking the sawblade out of the clamps

Picture 9-5
Place the sawblade clamp into the clamp holder at the front right of the work table.
Picture 9-6
Open the clamp with the clock key until the blade can be removed easily.

9.6 Putting a new sawblade into the blade clamps.

Picture 9-5
With the teeth pointing to the right and to the rear, lay the new sawblade in line with the centre of the clamp "V' and feed it straight into the clamp.
Slide the sawblade in until it touches the square headed tightening bolt, and then pull it back by about 1mm. This stops the blade distorting as you tighten the blade clamp.
Tighten the blade clamp using the clock key till the blade is secure in the blade clamp. Do not over-tighten!
Picture 9.7
Clamp a second blade clamp to the other end of the sawblade.
Picture 9-8 Make sure that the head of the tightening screws on both clamps is on the same side of the blade.

9.7 Fixing the sawblade and blade clamps into the machine

Picture 9-4
Ensure that the teeth are facing forward and downward.
Clip the lower blade clamp into the lower arm.
Hold down the top arm and set the top blade clamp into the upper arm.
Picture 9-9
Adjust the upper knurled screw until there is a 1mm gap between the screw and the top of the blade clamp. 7

10.0 Making internal cuts

In order to make internal cuts in a workpiece. the workpiece must be pre-drilled to allow the sawblade to pass through. It is recommended to use the piercework clamp for making internal cuts.

10.1 Taking the machine out of operation

8.4 Taking the machine out of operation

10.2 Securing the piercework clamp

Picture 10-1
Place the piercework clamp into the upper arm and lock it into position with the knurled screw.

10.3 Placing the sawblade through the workpiece

Move the sawblade forward sufficiently to place the sawblade through the pre-drilled hole in the workpiece. With large workpieces you may have to unclip the bottom clamp from the bottom arm to ease the sawblade through the workpiece.

pic 10 group

10.4 Clamping the sawbiade into the piercework clamp

Picture 10-2
Hold the top arm down and place the top of the sawblade into the front of the piercework clamp. Do not put much pressure on the sawblade or you will distort the sawbiade in the clamp.
Tighten the piercework clamp using the knurled aluminium knob on the side of the clamp.

10.5 Tensioning the sawbiade

8.1.1 Tensioning the sawbiade
Position the workpiece so that it will not touch the sawbiade when you switch the machine on.
Note: ur When using the piercework clamp it should always be locked in position on the top arm to save time when changing the sawblade.

11.0 Angling the table top

Picture 11-1
By swivelling the table top you can adjust the cutting angle to a maximum of 459.

11.1 Taking the machine out of operation

8.4 Taking the machine out of operation

11.2 Swivelling the table top

Take out the table insert (2).
Loosen the star knob (1) by turning about one rotation anti-clockwise.
Swivel the table top to the desired angle using the protractor scale and tighten the star knob clockwise.
Reposition the table insert (2) in the table.

12.0 Adjusting the stroke length

The machine leaves the factory set to the long OW stroke length. This is the best setting for the vast majority of work on the fretsaw (scrollsaw).
For working in extremely thin or light materials, Ea? such as veneers and thin sheet metals, shortening the stroke gives more control and smoothness of operation. The danger of breaking thin blades is reduced.

12.1 Taking the machine out of operation

8.4 Taking the machine out of operation

12.2 Taking off the side guard plate

Picture 12-1
Remove the screw (1) using the hexagonal soc-ket screw key (Allen key) and take off the side guard plate (2).
12.3 Securing the flywheel Picture 12-2 Put the steel pin into the side bore in the flywheel. 12.4 Detaching the link and bearing assembly Picture 12-2
Hold the steel pin (1) with one hand - preventing the rotation of the flywheel
Loosen the pivot screw (2) anti-clockwise using the open ended spanner (3) (with theMutticut-1 use a 3mm Allen key).

12.5 Adjusting the stroke length

Picture 12-3
Lightly push the link and bearing (1) to one side. Behind you will see two threaded holes in the flywheel.
To adjust
- for a short stroke, replace the pivot screw into the threaded hole (3) nearest to the centre point of the flywheel
- for a long stroke, replace the pivot stroke into the threaded hole (4) which is further from the centre point of the flywheel.

12.6 Tightening the pivot screw of the link and bearing assembly

Picture 12-4
Before you re-tighten the pivot screw through the link and bearing into the flywheel. check that the spacer washer is in position between them.
When tightening the pivot screw hold the flywheel with the steel pin to prevent it turning.

pic 12 group

13.0 Connecting a dust extractor

ACertain types of wood and wood sheet materials etc. produce harmful dust emissions during ma-chining. For this reason the machine should be connected to a dust extractor. With long and frequent use in a manufacturing or educational situation the dust extractor should be wired so that it comes on automatically when the ma-chine is switched on.

13.1 Connection

Picture 13-1
The machine is fitted with an extraction port for fit-ting to a dust extractor or vacuum cleaner.
Put the end of the dust extractor hose into the tapered port (1) so that it fits tightly.

pic 13 group

13.2 Adjustment of the upper extraction tube

Picture 13-2
Loosen the clamping handle (1).
Adjust the upper extraction tube until it is just above the height of the workpiece and 8mm to the rear of the blade.
Tighten the clamping handle (1).
If you wish to work without dust extraction the saw-dust can be blown free of the work line by pulling ow the upper extraction hose (4) from the extraction port (5) and inserting in the back of the bellows base (3).
The machine should only be used without dust Aextraction in the open air !
In closed rooms, dust extraction should always be used ! (See 13.0 Connecting a dust extractor)

14.0 Maintenance/Cleaning

The machine requires very little maintenance! Only lir the upper and lower arm pivot bolts must regularly 2 (about every 10 hours of operation) be lubricated with a fine, non-resinous oil (e.g. sewing machine oil).

14.1 Oiling the arm pivot bolts

Picture 14-1
Brush off all dust that has accumulated round the pivot bearings (1)!
Oil both pivot bolts with a light oil. Put a drop of oil onto the pivot bolt on each side of the arm at the spots marked with the arrows.
The tension rod (2) must not be oiled or lir greased !

14.2 Sight check

Carry out a visual check at regular inter-vals with the machine switched off. Check all parts of the machine, especially
- the mains plug
- the mains cable
- the switch box for damages !
If damage is found, take the machine out of operation immediately and have an expert repair made with original spare parts!

14.3 Cleaning

the machine should be cleaned regularly when required!
dust and chips should not be allowed to Ur accumulate on the machine!

14.3.1 Taking the machine out of operation

8.4 Taking the machine out of operation

14.3.2 Cleaning the machine

Clean the machine by removing the dust and chips with a vacuum cleaner.
Remove the side guard plate and remove the dust and chips accumulating behind it.
Remove any remaining accumulations with a soft brush ( a paint brush is ideal).
Do not use any
- combustible
- etching
- scouring
cleaning agents!
Prevent liquid or dampness from penetra-ting into the machine, especially to the electrical parts!
If liquid or dampness has penetrated the electrical parts do not connect the ma-chine to the electrical supply!
In this case contact your dealer, distributor or the manufacturer.

15.0 Repair/Spare Parts

This instruction manual does not contain any in-structions for repairs! The repair and/or exchange of parts is done at your own risk!
Please observe the following guidelines without fail.

15.1 Repairs

Do not repair or replace any defective elec-trical parts!
- These parts must be replaced by original parts from the manufacturer!

- The replacement of electrical parts must only be carried out by the manufacturer, authorised dealer /distributor or a qualified operative (e.g. electrician).

- An Improper repair or replacement of electrical parts may cause death or injury due to electrical shock or cause electrical fires!

The person repairing the machine is held liable for all injuries caused in this way!
Defective mechanical machine parts
-should normally be replaced only by the manufacturer/dealer/distributor or an operative with the relevant mechanical knowledge

- can be exchanged by the user with origi-nal parts from the manufacturer. if the user has the required mechanical knowlege.

- The person repairing the machine is held liable for all injuries or damage caused by improper repair!
If you want to repair the machine yourself,
switch off the machine and unplug from the electrical supply before commencing repair.

16.0 Application guidelines

16.1 Choice of sawblade with regard to the material to be cut

Table on the side guard plate of the machine
Important:
When sawblades become blunt they should im-mediately be replaced with a new sawblade. This applies particularly when cutting iron or steel. The full cutting capacity and precision is only achieved if the recommended quality and grade of sawblade is used.
Useful guide:
Br If for economic reasons you wish to continue to use a sawblade that is becoming blunt, you can fix, with double sided tape, a false table of at least 20mm thickness to the machine table and continue sawing on top of this. This way you can use the portions of the sawblade not used pre-viously.
Working with plastic materials:
12T To stop the plastic fusing together behind the sawblade, cover the desired cutting line with brown parcel tape or another adhesive PVC tape.

16.2 Feed pressure

The feeed pressure you apply to the workpiece must be directed towards the front of the sawblade. Failure to do this will cause the work-piece to chatter or break the sawblade. Some thick workpieces require a strong feed pressure!

16.3 Use of a fence

It is not possible for a fretsaw (scrollsaw) to be used with a fence.

If you attempt to use the fretsaw (scrollsaw) with a fence the blade will depart from the desired cutting line and break as side pressure is ap-plied to the blade. This is due to the right hand bias of all fretsaw and piercing sawblades.

Exact sawing is achieved by
- a sharp sawblade a thin,
- clear cutting line,
- good lighting

16.4 Straight cuts

Hold the workpiece inclined to the right of the table about 19 to 59 (The angle depends on the material, the type and sharpness of the sawblade and the blade tension).

16.5 Guidance for cutting metals

Remove any burrs from the edges of metal workpieces. Ensure that all sides are smooth.
Attach small or thin workpieces (e.g. thin sheet metals) to a plywood or hardboard panel about 5mm thick, with double sided adhesive tape. Alternatively place the work-pieces between two plywood pieces that are bolted together so that the workpiece cannot shift.
Saw the workpiece and the plywood together (beware using a blade which is too coarse.)
Select wood sawblades for
- soft non-ferrous metals e.g.
- aluminium sheet
- soft copper sheet
- soft brass sheet

Use grades 1, 5 or 9 from the sawblade pack depending on the thickness of metal to be cut.

It is advisable to wipe the cutting line with light lubricating oil before sawing.
Select metal sawblades for
- hard non-ferrous metals and ferrous metals e.g. 111F
- duralumin sheet
- hard brass sheet
- steel sheet
Use grades 1, 5 or 9 from the sawblade pack depending on the thickness of metal to be cut. For thick sheet of 10mm thickness it is better to use number 12 (or higher) metal cutting sawblades.
Smear cutting oil or paste around the cutting line before starling to saw.
Despite using blades of best quality iron and steel wear out sawblades quicker, depending on the degree of hardness.

17.0 Selection of cutting speed (variable speed machines only)

Higher speeds are preferred for cutting most LW, timber and plastics.
Slower speed is best used on metals. thin materials or extremely fine, intricate fret work.
High speeds give better cutting performance: slower speeds give greater blade life. This trade-off should always be considered when selecting cutting speed.