T 250 N-3 - Saw ATIKA - Free user manual and instructions

USER MANUAL T 250 N-3 ATIKA

Original instructions

Notice originale

Exterior view of a modern office building (no signage)

Do not operate machine before having read the operating instructions, understood all the notes and assembly the machine as described here.

Keep the instructions in a safe place for future use.

Contents

Extent of delivery 11

Declaration of conformity 11

Characteristics data of noise 12

Symbols machine /operating instructions 12

Normal intended use 12

Residual risks 13

Safety instructions 13

Description of device / Spare parts 13

Assembly 13

Preparing for commissioning 14

Commissioning 14

Mains connection 14

On / Off Switch 15

Dust/chip exhaustion 15

Adjusting the saw 15

Adjusting the riving knife 15

Set the cutting height 15

Adjust saw blade pitch 15

Fitting and adjusting the transverse stop 15

Fitting and adjusting the longitudinal stop 16

Working with the saw 16

Cutting narrow workpieces 16

Cutting wide workpieces 16

Cross cuts / mitre cuts 16

Cutting lengthwise and tilted 16

Maintenance and care 17

Maintenance 17

Cleaning 17

Transport 18

Storage 18

Possible faults 18

Technical data 19

Guarantee 19

Extent of delivery

After unpacking, check the contents of the box

▶ That it is complete
▶ Check for possible transport damage

Report any damage or missing items to your dealer, supplier or the manufacturer immediately. Complaints made at a later date will not be acknowledged.

— Power cable and plug
- TCT saw blade ∅ 250 x 1,8/2,8 x ∅ 30 mm; 40 teeth

• Circular saw T 250 N-3 including
- 4 table legs
• 2 connecting braces short
• 2 connecting braces long
- 4 push-on bases
• 2 additional braces
• Safety guard with exhaust outlet
- Splitting wedge
- Longitudinal stop
- Table length extension
• 2 supports for bench length extension
• 2 bench width extensions
• 4 supports for table width extensions
- Pushstick
- Extraction hose
- Screw bag
• 2 spanners for replacing saw blade
• Original operating instruction manual
• Safety instructions for circular table saws
• Assembly and operating instruction sheet
- Warranty declaration

EC Declaration of Conformity

No. (S-No.): 26382

according to EC directive: 2006/42/EC

We,

Altrad Lescha Atika GmbH

herewith declare under our sole responsibility that the product

Tischkreissäge (Circular Saw Bench)

Model M1H-ZP5-250A-1, Type T 250 N-3

Serial number: 000001 - 020000

is conform with the above mentioned EC directives as well as with the provisions of the guidelines below:

2014/30/EU and 2011/65/EU

Following harmonized standards have been applied:

EN 62841-1:2015; EN 62841-3-1:2014/A11:2017

EN 55014-1:2017; EN 55014-2:2015;

EN 61000-3-2:2014; EN 61000-3-3:2013

Duly authorised person for the compilation of technical documents:

Altrad Lescha Atika GmbH – Technical department

Josef-Drexler-Str. 8 – 89331 Burgau – Germany

i.A. f A

Burgau, 18.10.2019

Engineering design management

Characteristic data of noise

DIN EN ISO 3744

Use of the machine as a bench to circular saw with standard circular saw blade.

Noise power level Sound pressure level at the workplace
L_WA = 107 dB(A) L	_pA = 94 dB(A)

The factor of measurement uncertainty is 3 dB.

The values given are emission values and must therefore not simultaneously represent safe workplace values too. Although there is a relationship between emission and immersion levels, it can be reliably deduced whether additional precautionary measures are necessary or not. Factors, which can influence the immersion level currently existing at the workplace include the duration of the effects, the special type of the workroom, other noise sources, etc. e.g. the number of machines and other adjacent processes. The permissible workplace values can also vary from country to country. This information should however enable an improved assessment of the danger and risk to be carried out.

Symbols machine

	Carefully read operator's manual before handling the machine.
	Wear eye and ear protection
	Wear dust mask.
	Shut off engine and remove power cord before performing cleaning, maintenance or repair work.
	Do not expose to rain. Protect against humidity.
	Risk of injuries of fingers and hands by the saw blade
	This product complies with European regulations specifically applicable to it.
	Machine of the protection class II (double insulated)
	Electrical devices do not go into the domestic rubbish. Give devices, accessories and packaging to an ecofriendly recycling.According to the European Directive 2012/19/EU on electrical and electronic scrap, electrical devices that are no longer serviceable must be separately collected and brought to a facility for an environmentally compatible recycling.

Symbols Operating instructions

	Threatened hazard or hazardous situation. Not observing this instruction can lead to injuries or cause damage to property.
	Important information on proper handling of the saw. Not observing this instruction can lead to faults in the machine.
	User information. This information helps you to use all the functions of the chain saw optimally.
	Assembly, operation and servicing. Here you are explained exactly what to do.
...	Please refer to the attached assembly and operating instruction sheet for references to figure numbers in the text.

Normal intended use

• The bench-type circular saw is intended exclusively for ripping and cross-cutting solid wood and panel materials such as chipboard, core-board and medium density fiberboard with square or rectangular cross-section using carbide tipped saw blades, whereby only saw blades in compliance with the norm EN 847-1 are allowed to be used with this machine.
  ■ The saw blade must have a diameter of 250 mm.
• The use of saw blades made of HSS steel (high-alloy high speed steel) is not permitted since this steel is hard and brittle. Risk of injury through saw blade breakage and expulsion of saw blade pieces.
• Cutting round material (posts, firewood, etc.) is not permitted.
  ■ This saw may not be used for rebating or cutting grooves.
• Do not use this saw for cutting inserts (grooves that end in the workpiece).
• Only workpieces which have been securely mounted and aligned can be processed.
• The intended usage also includes compliance with the operating, servicing and repair conditions prescribed by the manufacturer and following the safety instructions included in the instructions.
• The relevant accident prevention regulations for the operation as well as the other generally acknowledged occupational medicine and safety rules must be complied with.
• Any other use is deemed not to be use as prescribed. The manufacturer is not liable for any type of damage resulting from this: the user bears the sole risk.
• Independently made alterations to the circular saw preclude any liability of the manufacturer for resulting damages of any kind.

• The circular saw may only be equipped, used and serviced by persons who are familiar with these and have been instructed in the hazards. Repair works may only be carried out by us or by a customer service agent nominated by us.

• The machine may not be used in a potentially explosive environment or be exposed to the rain.
  ■ Metal parts (nails, etc.) must be removed from the timber to be sawn.

Residual risks

Even if used properly, residual risks can exist even if the relevant safety regulations are complied with due to the design determined by the intended purpose.

Residual risks can be minimised if the "Safety information" and the "Intended usage" as well as the whole of the operating instructions are observed.

Observing these instructions, and taking proper care, will reduce the risk of personal injury or damage to the equipment.

• Danger of injury of fingers and hands by the tool (saw blade) or work piece, e.g. when replacing the saw blade.
  ■ Injury from parts of the workpiece spinning off.
• Throwback of the workpiece or workpiece parts.
  ■ Breakage and expulsion of saw blade.
• Risk from electricity, by using non-standard electrical connections.
• Touching live parts of opened electrical components.
• Impairment of hearing when working on the machine for longer periods of time without ear protection.
• Emission of harmful timber dust when operating without exhaust suction.

In addition, in spite of all the precautionary measures taken, non-obvious residual risks can still exist.

Safety instructions

WARNING

Read all safety warnings and all instructions. Failure to follow the warnings and instructions may result in electric shock, fire and/or serious injury.

sure to observe the separately enclosed "General safety notices for circular table saws".

Save all warnings and instructions for future reference.

Description of device / spare parts

1

Pos.-No.	Order-No.	Denomination
2	366279	Supporting leg
3	366281	Connection strut - short C
4	366280	Connection strut - long B
5	366266	Saw blade
6	×	Crank for height adjustment
7	366504	Safety guard
8	366505	Riving knife
9	366261	Extraction hose
10	×	Bench plate
11 366254 Transverse stop cpl.
11A	×	Stop bar
12	366255	Table insert
13 366506 Longitudinal stop cpl.
13A	×	Fence
14 366271 Adjusting knob for incline adjustment
15 366272 Clamping screw for incline adjustment
16	×	On/Off switch
17	×	Motor protection
18	366270	Dust extraction port
19	366275	Sliding stick
22 366268 Saw blade flange 37
23 366269 Hexagonal screw for saw blade 37
24 366257 Guide section for longitudinal stop
25	×	Clamping lever for longitudinal stop
26	366288	Safety label
27	366282	Additional brace
28	×	Scale for cross-cut adjustment
29	366283	Slip-on foot
30	366273	Ring wrench size 10/21
31 Ring wrench size 10/13
32	366507	Bench width extension
33 366508 Bench length extension
34a 366509 Support for table width extension, right
34a 366510 Support for table width extension, left
35 366511 Support for table length extension
36 366513 Reinforcement brace for table width extension

Assembly

Please refer to the attached assembly and operating instruction sheet.

① Tighten all screw connections only hand-tight first.

2 Place the saw with the table surface facing downwards onto a suitable work surface. Place then the table width extensions (32) and the table length extension (33) onto the table plate (10).

3 Secure the table width and table length extensions on the table plate.

4 i The supports have different lengths. Support for table width extension, right (34a) Support for table width extension, left (34b) Support for table length extensions (35)

5 Secure the table legs (2) together with their supports on the saw. First unscrew the hexagon screws M6 x 12 from the housing.
6 Secure then the supports on the table width and table length extensions.
7 Secure the braces Ⓑ (4) and Ⓓ (3) to the table legs. ⓘ The braces have different lengths.
8 Secure the two long braces Ⓑ (4) first to the table legs.
9 Now secure the two short braces © (3).
10 Mount the push-on bases (29) to the table legs.
11 Install the additional braces (27).

① Firmly tighten all screw connections.

Turn the saw right side up so it stands on the table legs. Adjust the additional braces (27) so that they touch the ground.

12 Raise the saw blade (5) with the crank (6) to the highest position.
13 Remove the table insert (12).
14 Loosen the screw (A) and insert the blade guard (8) into the receiver.
15 Adjust the distance between saw blade and riving knife (8). The distance must be between 3 and 8 mm. Retighten the screw (A).

16 Attach the safety guard (7) to the riving knife (8).
Do not tighten the screw (B). The safety guard must lower itself again to the table top on its own after lifting it.
17 Slide the extraction hose (9) on the connection piece of the safety guard (7) and on the extractor neck (18) on the housing.
18 Fasten the stop bar (11A) on the transverse stop.
33 Place the pushstick (19) in its holder.

Preparing for commissioning

To achieve flawless functioning of the machine, please follow the instructions listed:

• Place the saw in a place that fulfils the following conditions:
  – secured against slipping
  – free of vibrations
• even
  – free of tripping hazards
• adequate light

Before each use, check

→ Connection cables for defects (cracks, cuts, etc.)
Do not use any defective cables.
→ that the guard is in a proper condition
- Inspect the safety guard for visible damages. Do not use damaged safety guards.
- Lift the safety guard and then release it. It must lower down to the saw table on its own.
→ the splitting wedge setting (see splitting wedge setting)
→ that the table insert is in a proper condition
Immediately replace a worn or damaged table insert (Worn sawing gap)
→ whether the pushstick is to hand
Always use the original push stick
→ the saw blade for flawless condition
Do not use any cracked saw blades or such that have changed their shape.
Do not use any saw blades made of HSS steel.

Commissioning

Rotational direction of the saw blade

i Ensure that the rotational direction of the saw blade is the same as the rotational direction given on the guard.

Selection of saw blades

⚠️ Consider when selecting the saw blade, that no edgeless or damaged saw bands are used and that the diameter of the blade location hole is 30 mm.

• Do not use saw blades made of high speed steel (HSS) since this steel is hard and brittle; use only tools according to EN 847-1.
  The use of other tools and other accessories may present a risk of injury to you.
• Pay attention that the saw blade conforms with the dimensions specified under "Technical Data" and is suitable for the work piece material.

The saw blade supplied as a standard is suitable for timber and most plastics.

Suitable saw blades must be selected for other materials to be cut.

When sawing plastic, avoid overheating of the sawtooth tips to prevent the material to be cut from melting.

Mains connection

Compare the voltage given on the machine model plate e.g. 220 – 240 V with the mains voltage and connect the saw to the relevant and properly earthed plug.

Use the connection or extension cable according to IEC 60245 (H 07 RN-F) with a core cross-profile section of at least

■ 1.5 mm2 for cable lengths up to 25m
■ 2.5 mm2 for cable lengths over 25m

i Alternating current motor:

Use a shockproof plug, mains voltage 220 – 240 V with residual current circuit breaker (FI switch 30 mA).

i Main fuse: 10 A inert

i Power system impedance

In case of disadvantageous power system conditions short-term voltage reductions can occur during the event of switching on of the device which can influence other devices (e.g. jittering of a lamp).

Such influences are not expected at a system impedance of Z_max 0,346 .

On / Off Switch

⚠ Do not use any device where the switch can not be switched on and off. Damaged switches must be repaired or replaced immediately by the customer service.

19

Switch on

Press the green button ( I ) on the switch.

If there is a power cut, the machine switches off automatically. To switch on again, press the green (1) button.

Switch off

Press the red button (O) on the switch.

Motor protection

The motor is equipped with a safety switch and switches off independently when overloaded.

It can be switched back on following cooling phase (5 - 10 min.).

First press

1. small button (17)
2. the green button ( I ) to start

Dust/chip exhaustion

The wood dust generated during operation impedes the necessary view and is harmful to health to some degree.

Unless the machine is used outdoors, it must be connected to a chip exhaust system (e.g. portable dust remover).

Chip exhaustion

Connect a chip exhaust system or small vacuum cleaner with suitable adapter to the chip exhaust neck (18) (∅ 40 mm).

1

i Air velocity at the exhaust neck of the saw ≥ 20 m/sec.

Use a special exhaust device when exhausting dusts that are harmful to health, carcinogen or dry.

Adjusting the saw

Pull the mains plug before performing settings.

Adjusting the riving knife

⚠ The riving knife is an important safety device as it prevents the workpiece from recoiling.

Always use the supplied riving knife.

To ensure the function of the riving knife its clearance to the saw blade teeth must be correctly adjusted.

Adjusting the riving knife

For information on how to adjust the riving knife see the chapter "Maintenance → Changing the saw blade".

20 Set the cutting height

The cut height can be adjusted stepless from 0 - 85 mm using the crank (6).

Before adjusting the cutting height, tighten the locking screw for incline adjustment (15).

Set the cutting height 5 mm higher than the material thickness.

21 Adjust saw blade pitch

The saw blade must not be set to the inclined position when the blade is turning. The motor must be switched off first.

Adjusting between 0° - 45°

1. Loosen the clamping screw (15).
2. Turn the handwheel until the required angle is shown ( 0^ - 45^ ).
3. Retighten the clamping screw (15).

Fitting and adjusting the transverse stop

The transverse stop supplied can be used as a transverse or mitre stop.

Make sure that the stop is correctly adjusted (see "Working with the saw").

Fit the transverse stop to the saw table plate

22 Push the transverse stop (11) into one of the two grooves on the saw table plate.

Setting the angle

23 Loosen the clamping screw (B) of the transverse stop (11) by turning. You can now set the stop to the required angle. Turn the clamping screw tight again.

Fitting and adjusting the longitudinal stop

Fit the longitudinal stop to the saw table plate.

The longitudinal stop (13) can be installed on the left or right of the saw blade. To attach the fence on the other side of the stop,

■ 24 loosen the two thumb nuts (D)
■ 25 remove the fence (13A)
■ remove the two thumb nuts and pull out the screws
- insert the screws from the opposite side through the stop and screw on the thumb nuts by some turns
■ reinstall the fence
■ tighten the thumb nuts
■ 25 release the clamping lever (25) and pull the length stop out of the guide groove
■ 26 slide the length stop in the guide groove from the opposite side and press the clamping lever (25) down for clamping.

Make sure that the fences are correctly adjusted. (See "Working instructions").

Setting the longitudinal stop 27

1. Place the longitudinal stop (13) in the guide profile (24) on the bench.
2. Set the desired dimension and turn the lever (25) down.
3. To obtain a precise cut, first make a test cut and then readjust the stop as needed.

Working with the saw

Before starting to work consider the following safety advices to keep the risk of injuries as small as possible.

■ Protective guard, splitting wedge and saw blade ok?
■ Is the saw blade well-sharpened?
- Stoppers (fences) ready for use and pushstick to hand?
■ Workplace tidied?

- You may not start to operate the machine until you have read these operating instructions, observed all the instructions given and installed the machine as described!

Before making adjustments to the saw settings (e.g. replacing the saw blade etc.)

• switch off device
  — Wait for standstill of the saw blade
• pull out main plug

Also, note the following important points:

• Place yourself outside of the area of danger.
• Place your hands flat on the workpiece with fingers closed. With it, lead the work piece with the hand only up to the leading edge of the saw blade protection.
  ■ Make sure the safety guard lowers itself onto the workpiece on its own.
• Never remove loose splinters, chips, or similar by hand.

Observe all safety instructions in any case.

Cutting narrow workpieces

(Width less than 150 mm)

Push the workpiece forward with both hands, in the area of the saw blade, use the pushstick (19).

When working on very flat and narrow workpieces (Width 30 mm and less) use the lower guide are of the fence (13A).

Use a push stick if the workpiece is narrower than 50 mm.

29 You can easily make your own push block / push stick. To do so, screw the handle for the pushing block (not included with the delivery, order no. 361700) onto a board of the right size. The board should be 300 to 400 mm long, 80 to 100 mm wide and 15 to 20 mm thick. The push block handle must be replaced if damaged.

Cutting wide workpieces

- With the flat of the hand and the fingers closed, push the work piece to be cut along the stop.

• Push the transverse stop (11) into one of the guide grooves on the table and set the transverse stop to the required angle.
• Place the workpiece to be cut against the stop rails.
• Hold the workpiece firmly in place and push it past the saw blade using the transverse stop (11). Use the pushing bar (19) if necessary.

32 Cutting lengthwise and tilted

Adjust the saw blade as described in "Adjusting the saw blade tilt".

When the saw blade is tilted, always attach the stop to the right side.

Maintenance and Care

Before each maintenance and cleaning work

• switch off device
• wait for stop of saw
• pull out main plug

Further maintenance and cleaning works than described in this chapter shall only be carried out by the manufacturer or companies named by the manufacturer.

For maintaining and cleaning, removed security devices must unconditionally be mounted properly and proved again.

Use only original parts. Other parts can result in unexpected damages and injuries.

Maintenance

Notes on saw blade change

Before replacing the saw blade:

• switch off device
  — wait for stop of saw

• pull out main plug

• Do not use any saw blades made of HSS steel.

• Do not use any cracked saw blades or such that have changed their shape.
  ■ Only use well-sharpened saw blades.
  ■ Use only suitable saw blades.
• Always use saw blades whose max. speed (see identification on the saw blade) corresponds to the motor speed indicated on the saw (see "Technical data").
• Always use saw blades whose cutting width is greater and whose main blade thickness is smaller than the riving knife thickness.

Danger of burning! The saw blade is still hot shortly after cutting. Allow the saw blade to cool down.

Danger of cutting! Wear gloves when replacing the saw blade.

⚠️ If possible, carry saw blades in a container.

Changing the saw blade:

20 Bring the saw blade to the highest position.
34 Remove the safety guard (7).
35 Remove the table insert (12).

36 Place the ring wrench (30) on the saw blade flange (22) and the ring wrench (31) on the hexagon screw (23). For loosening, turn the ring wrench (31) in arrow direction.
37 Remove the hexagon screws (23) and the saw blade flange (22). Pull the saw blade (5) off. Clean the flange.

Fit the new saw blade in reverse order.

⚠️ Firmly tighten the saw blade.
⚠️ Note the direction in which the saw blade turns (see arrow on saw blade).

Check the distance / Adjusting the riving knife:

Raise the saw blade (5) with the crank (6) to the highest position.

38 Measure the distance between saw blade and blade guard (8). The distance must be between 3 and 8 mm.
If required:
39 Loosen the screw (A) the adjust the distance.

Retighten the screw (A).

⚠️ Finally, reinstall the table insert and the safety guard.

Replacing the table insert 35

A worn out or damaged table insert must be immediately replaced.

Tool storage

40

Cleaning

i Observe the following to maintain the functionality of the saw.

• Do not wash down device with water.
• Remove splints and sawdust only with a brush or vacuum cleaner.
  ■ Clean and oil all moving parts regularly.

i Never use any grease!

Use for instance sewing machine oil, liquid hydraulic fluid or environmentally acceptable spray oil.

■ Take care that the saw blade remains free of rust and resin.
- Remove all resin residues from the saw bench top i Resin residues can be removed with a commercial maintenance and care spray.
- The saw blade is a wearing part and will become dull after prolonged or frequent use.

Renew the saw blade or have it sharpened

Transport

Remove mains plug before each transport.

The saw must only be transported with the saw blade lowered and the protective cover in position. This will avoid possible injury from the saw blade.

■ Take hold on the right and left side of the saw for transporting.
- If the saw is transported in a vehicle, it must be secured against slipping and tilting. Avoid heavy vibration during transport.
■ Never use the safety devices for handling and transport.

Storage

Remove the mains plug from the socket.

■ Store unused equipment in a dry, locked place out of the reach of children.
■ To extend the service life of the saw and guarantee smooth operation, before storing for a longer period
— thoroughly clean the saw
- treat all movable parts with an environmentally friendly oil
Never use any grease!
■ To save storage space, the saw frame can be collapsed.

Possible faults

Before each fault clearance

• switch off device
  — wait for stop of chain saw
• pull out main plug

After each fault clearance, put into operation and recheck all security installations.

Fault Possible cause Removal
Machine fails to start after switching on or switches off during idle running	Power failureExtension cable defectMotor or switch defectSaw blade sticks	Replace fuseCheck cable, no longer use defect cableHave motor or switch checked by an approved electrician or replaced by original spare partsRemove the cause of the jam.
Machine stops while cutting	Saw blade bluntFeed is too great	Replace saw bladeAllow motor to cool and proceed working with less pressure
Workpiece sticks when feeding	Saw blade is dullThe longitudinal or parallel stop is not parallel to the saw blade	Hold the workpiece firmly and switch the motor off immediately. The have the saw blade sharpened or renewReadjust the scale
Burned spots at the cut areas	Saw blade is not suitable for the work step or is dull	Replace saw blade or have it sharpened
Chip outlet is clogged	No exhaust system connectedExhaust power too weak	Switch off saw, remove chips and connect exhaust systemSwitch off saw, remove chips and increase exhaust power (air velocity 20 m/sec at chip exhaust neck).
Motor running, saw blade will not turn.	Driving belt defective	Contact an authorised customer service workshop
Saw vibrates	Saw blade is warpedSaw blade not properly mounted	Replace saw bladeMount saw blade properly

① In case of further faults or inquiries please contact your local dealer.

Technical data

Model / Type M1H-ZP5-250A-1 / T 250 N-3
Year of constructions see last page
Motor output P_1 2000 W (S6 – 25%)
Mains voltage 220 – 240 V~
Mains frequency 50 Hz
Saw blade speed 5000 min	-1
Mains fuse 10 A inert
Hard metal saw blade ∅ maximum 250 mm
Hard metal saw blade ∅ minimum 250 mm
Saw blade thickness 1.8 mm
Cut width 2.8 mm
Number of teeth 40
Thickness of splitting wedge 2 mm
Saw blade location hole 30 mm
Cutting speed (at maximum saw blade ∅)	65 m/s
Cutting height at 90° (for maximum saw blade ∅)	ca. 0 - 85 mm
Cutting height at 45° (for maximum saw blade ∅)	ca. 65 mm
Bevel cut adjustment	0° – 45°
Table size (with length and width extension)	804 x 893 mm
Table height (with stand)	820 mm
Table length extension	560 x 221 mm
Table width extension	583 x 165 mm
Weight (with stand)	ca. 21.0 kg
exhaust outlet saw guard ∅	35 mm
Exhaust connection ∅	35 / 40 mm

Commercial small dust removers or industrial vacuum cleaners can be used for exhaustion.

Guarantee

Please observe the enclosed terms of guarantee.

SST Burgau - Germany i.A.

Burgau, 18.10.2019

Handwritten signature or scribble on a line, possibly from a document or form

Burgau, 2019.10.18.

89331 Burgau – Germany

i.A. f A

Burgau, 18.10.2019

model M1H-ZP5-250A-1-type T 250 N-3

Serienummer: 000001 - 020000

Stof-/spanenafzuiging

conform directive: 2006/42/UE

Prin prezenta, noi

Altrad Lescha Atika GmbH

Josef-Drexler-Str. 8, 89331 Burgau - Germany

Year of construction

F