TKS 250 UV - Saw EINHELL - Free user manual and instructions

USER MANUAL TKS 250 UV EINHELL

Bench-type circular saw Carbide-tipped saw blade Parallel stop Cross stop Push stick Face spanner Open-ended spanne

The TKS 250 bench-type circular saw is designed for the slitting and cross-cutting (only with the cross stop) of all types of timber, commensurate with the machine’s size. The machine is not to be used for cutting any type of roundwood. The machine is to be used only for its prescribed purpose. Any use other than that mentioned is considered to be a case of misuse. The user/operator and not the manufacturer shall be liable for any damage or injury resulting such cases of misuse. The machine is to be operated only with suitable saw blades (carbide or chrome-vanadium blades). It is prohibited to use HSS blades and any type of cutting-off wheel. To use the machine properly you must also observe the safety regulations, the assembly instructions and the operating instructions to be found in this manual. The manufacturer shall not be liable for any changes made to the machine nor for any damage resulting Even when the machine is used as prescribed it is still impossible to completely eliminate certain residual risk factors. The following hazards may arise in connection with the machine’s construction and design: Contact with the saw blade in the uncovered saw zone. Reaching into the running saw blade (cut injuries). Kick-back of workpieces and parts of workpieces due to improper handling. Saw blade fracturing. Catapulting of faulty carbide tips from the saw blade. Damage to hearing if essential ear-muffs are not worn. Harmful emissions of wood dust when the machine is used in closed rooms.

Please read this manual carefully and pay attention to the information provided. Use this manual to familiarize yourself with the machine, its correct use and safety regulations. Safety regulations Caution: Whenever electric tools are used it is imperative to take the basic safety precautions in order to rule out risks of fire, electric shock and injury to persons. Keep these safety instructions in a safe place. Always pull the plug out of the power socket before adjusting or servicing the machine. Give these safety regulations to all persons who work on the machine. Do not use this saw to cut fire wood. Do not use this saw to cross-cut roundwood. Caution! Hands and fingers may be injured on the rotating saw blade. The machine is equipped with a safety circuit- breaker (11) to prevent it starting up again after a voltage drop. Before you use the machine for the first time, check that the voltage marked on the rating plate is the same as your mains voltage. If you need to use an extension cable, make sure its conductor cross-section is big enough for the saw’s power consumption. Minimum cross-section: 1 mm

If you use a cable reel, the complete cable has to be pulled off the reel. Do not carry the machine by ist power cable.

Anl. TKS 250 03.05.2002 9:47 Uhr Seite 15GB Never remove the plug from the socket-outlet by pulling the cable. Protect the cable from heat, oil and sharp edges. Do not leave the saw in the rain and never use it in damp or wet conditions. Provide good lighting. Never saw near combustible liquids or gases. Wear suitable work clothes! Loose garments or jewellery may become caught up in the rotating saw blade. If you have long hair, wear a hair-net. Avoid abnormal postures. Operators have to be at least 18 years of age. Trainees of at least 16 years of age are allowed to use the machine under supervision. Do not allow other persons, particularly children, to touch the tool or the power cable. Keep them away from your workplace. Keep children away from the machine when it is connected to the power supply. Keep your workplace clean of wood scrap and any unnecessary objects. Persons working on the machine should not be distracted. Note the direction of rotation of the motor and saw blade. After you have switched off the motor, never slow down the saw blade (4) by applying pressure to its side. Fit only blades (4) which are well sharpened and have no cracks or deformations. Use only circular saw blades (4) made of high- alloy high-speed steel (HSS). The machine is to be operated only with tools which conform with prEN 847-1: 1966. Faulty saw blades (4) have to be replaced immediately. Never use saw blades which do not comply with the data specified in this manual. Never wedge the hinged guard hood (2) in open position. Never dismantle the machine’s safety devices (2, 5) or put them out of operation. The splitter (5) is an important safety device. Not only does it guide the workpiece, it also prevents the kerf closing behind the blade so that there is no kickback from the workpiece. Note the thickness of the splitter. The splitter should never be thinner than the saw blade body or thicker than the width of its kerf. The guard hood (2) has to be lowered over the workpiece for each cut. Be sure to use a push stick (3) when slitting narrow workpieces (smaller than 120 mm in width). Never cut workpieces which are too small to hold securely in your hand. Important: This saw is not to be used for plunge cutting. Always stand to the side of the saw blade when working with the saw. Never load the machine so much that it cuts out. Always press the workpiece firmly against the saw table (1). Make sure that off-cuts do not catch on the saw blade crown. Risk of catapulting! Never remove loose splinters, chips or jammed pieces of wood when the saw blade is running. To rectify faults or remove jammed pieces of wood, always switch off the machine first. - Pull out the power plug! - If the sawing gap is worn, replace the table insert (6). - Pull out the power plug! - Conversions, adjustments, measurements and cleaning jobs are to be performed only when the motor is switched off. - Pull out the power plug! - Before you switch on the machine, check that all wrenches and adjustment tools have been removed. When you leave your workplace, switch off the motor and pull out the power plug. All guards and safety devices have to be refitted immediately after completion of any repairs or maintenance. It is imperative to observe the manufacturer’s safety, operating and maintenance instructions as well as the dimensions quoted in the technical data. It is imperative to observe the accident prevention regulations in force in your area as well as all other generally recognized rules of safety. Note the information published by your professional associations (VBG 7j). Switch on the dust extraction system each time you use the machine. Use the saw only with a suitable vacuum extraction system or a standard industrial vacuum cleaner in order to prevent injuries caused by flying pieces of wood. Wear goggles Wear ear-muffs

Anl. TKS 250 03.05.2002 9:47 Uhr Seite 16GB Noise emission values Cutting Idling Sound pressure level LPA 105,0 dB(A) 93,0 dB(A) Sound power level LWA 114,6 dB(A) 102,6 dB(A) „The quoted values are emission values and not necessarily reliable workplace values. Although there is a correlation between emission and immission levels it is impossible to draw any certain conclusions as to the need for additional precautions. Factors with a potential influence on the actual immision level at the workplace include the duration of impact, the type of room, and other sources of noise etc., e.g. the number of machines and other neighbouring operations. Reliable workplace values may also vary from country to country. With this information the user should at least be able to make a better assessment of the dangers and risks involved.“

Carbide saw blade ø 250 x ø 30 x ø 3.2 mm Number of teeth 36 Table size 625 x 463 mm Cutting height max. 76 mm / 90° 63 mm / 45° Height adjustment infinite 0 - 76 mm Table tilt infinite 0 - 45° Connector for dust extractor ø 36 mm Intermittent periodic duty (S3) means that cooling intervals (OFF periods) are necessary during operation. The OFF period has to be long enough to prevent the machine from overheating but does not require the motor to cool to room temperature. The ON period and the OFF period together add up to the cycle duty time. According to the standard the cycle duty time equals 10 minutes, i.e. a load factor of S3 50% corresponds to an ON period of 5 minutes and an OFF period of 5 minutes.

6. Before putting the machine into

operation Unpack the bench-type circular saw and check for any damage in transit. All the covers and safety devices have to be properly fitted before the machine is switched on. It must be possible for the saw blade to run freely. When working with wood that has been processed before, watch out for foreign bodies such as nails or screws etc. Before you actuate the On/Off switch, make sure that the saw blade is correctly fitted and that the machine’s moving parts run smoothly. Before you connect the machine to the power supply, make sure the data on the rating plate is the same as that for your mains.

Caution! Always pull out the power plug before carrying out any maintenance, conversion or assembly work on the circular saw. 7.1Fitting / removing the saw blade guard (Fig. 3) Take the saw blade guard (2) and slacken the wing nut (15). Place the saw blade guard (2) on the splitter (5) so that the screw (21) fits in the slot (a) of the splitter. lide the saw blade guard (2) forward and tighten the wing nut (15). Fasten the vacuum extraction pipe (13) to the vacuum extraction adapter (16) at the back of the machine and to the vacuum extraction socket of the saw blade guard (2). A suitable vacuum extraction system has to be connected to the outlet (b) of the vacuum extraction adapter (16) (Fig. 2). To remove the saw blade guard, proceed in reverse order. Caution! The saw blade guard (2) has to be lowered onto the workpiece before you begin to saw.

7.2 Adjusting the stop for the cutting

Move the handwheel (8) to the left until the arrow (17) points to 0°. Half tighten the locking handle (9). Place the angle (a) between the saw table (1) and the saw blade (4). If the angle is not exactly 90° you can use a hexagon socket-head key (b) to adjust the stop screw (18) until the angle is exactly 90°. It may be necessary to slacken the locking handle (9) again in order to swivel the saw blade a little further to the left.

7.2.2 45° stop (Fig. 4/6)

Move the handwheel (8) to the right until the arrow (17) points to 45°. Half tighten the locking handle (9). Place the angle (C) between the saw table (1) and the saw blade (4). If the angle is not exactly 45° you can adjust it with the stop screw (19) (similar to the procedure described in 7.2.1). Important! Be sure to secure the selected angle setting by tightening the locking handle (9) before you start to saw. 7.3Adjusting the splitter (Fig. 3/7) Caution! Pull out the power plug. Set the saw blade (4) to maximum cutting depth, move it to 0° position and lock it in place. Remove the saw blade guard (see 7.1). Take out the table insert (6) (see 7.4). Slacken the two hexagon socket-head screws (20).

7.3.1 Setting for maximum cuts (Fig. 7/8)

Raise the splitter (5) until the distance between the saw table (1) and the top edge of the splitter (5) is approx. 10 cm. The distance between the saw blade (4) and the splitter (5) has to be 3-5 mm. Re-tighten the two hexagon socket-head screws (20) and fit the table insert (6).

7.3.2 Setting for covered cuts (Fig. 7/8)

Lower the splitter (5) until the tip of the splitter is 2 mm below the tip of the top saw tooth. The distance between the splitter (5) and the saw blade (4) has to be 3-5 mm (see Fig. 8). Re-tighten the two hexagon socket head screws If you leave the splitter in bottom position, please note that the cutting height is reduced to approx. 65 mm. The setting of the splitter has to be checked each time after changing the saw blade. 7.4Replacing the table insert (Fig. 7a) If the table insert is worn or damaged table it has to be replaced or there will be a higher risk of accident. Take off the saw blade guard (2). Remove the 6 countersunk head screws (34). Lift the worn table insert (6) up and out. Fit a new table insert in reverse order.

7.5 Replacing the saw blade (Fig. 9)

Caution! Pull out the power plug. Set the saw blade (4) to maximum cutting depth. Take off the saw blade guard (2) (see 7.1). Take out the table insert (6) (see 7.4). Remove the splitter (5) (see 7.3). Use the face spanner (29) to block the outer flange (28) and use the open-ended spanner (30) to undo the hexagon screw by turning in the blade running direction (N.B.: left-hand thread). Set the saw blade (4) to minimal cutting depth so that it is easier to take out. Remove the saw blade (4) from the inner flange and lift it out. Carefully clean the saw blade flange before you fit the new saw blade. Insert and secure the new saw blade in reverse order. Caution! Note the running direction. The cutting edge of the teeth has to point in running direction, i.e. forward (see the arrow on the saw blade guard). Re-fit and re-set the splitter (5) and the saw blade guard (2) (see 7.3 and 7.1). Before you use the saw again, check that the safety devices are in good working order.

Push up the lock button (a). Swing open the cover (b). The saw can be switched on by pressing the green pushbutton „1“ (C). The red pushbutton „0“ (d) has to be pressed to switch off the saw.

The parallel stop (7) supplied with the bench- type circular saw has two different guide faces. For thick material you must use the stop rail (25) as shown in Fig. 11, for thin material you must use the stop rail as shown in Fig. 12. To change over the stop rail (25) to the lower guide face you must slacken the two knurled screws (26) in order to release the stop rail (25) from the holder (24). Take out the two knurled screws (26) through a slot (27) in the stop rail (25) and re-insert in the other slot (31). Re-fit the stop rail (25) to the holder (24). The procedure for changing over to the upper guide face is similar.

8.3.2 Cutting width (Fig. 11)

The parallel stop (7) has to be used when making longitudinal cuts in wooden workpieces. You can fit the parallel stop (7) to either side of the saw table (1). The parallel stop (7) has to be pushed into the guide slot (22) of the saw table (1) from the outside. Using the parallel stop on the left side: - With the scale (23) on the saw table (1) you can set the parallel stop (7) to the required dimension. - To do so, set the left edge of the holder (24) to the required dimension on the scale (23). - Turn the star-grip screw (12) clockwise to clamp the parallel stop (7) in this position. The procedure for using the parallel stop on the right side is similar.

8.3.3 Adjusting the stop length (Fig. 11/15)

The stop rail (25) can be adjusted in longitudinal direction in order to prevent the workpiece from becoming jammed. Rule of thumb: The rear end of the stop should coincide with an imaginary line beginning at approximately the middle of the saw blade and - Slacken the knurled screws (26) and slide the stop rail (25) forward until the imaginary 45° line is touched. - Re-tighten the knurled screws (26).

8.4 Cross stop (Fig. 16)

Take the cross stop (14) out of the holder and slide it into the slot (a) of the saw table (1). Slacken the knurled screw (32). Turn the cross stop (14) until the arrow (33) points to the required angle size. Re-tighten the knurled screw (32). For cutting large workpieces you can use the stop rail (25) from the parallel stop (7) to extend the cross stop (14) (Fig. 13). Important! Do not push the stop rail (25) too far toward the saw blade. The distance between the stop rail (25) and the saw blade (4) should be approx. 2 cm.

8.5 Setting the angle (Fig. 4)

Undo the locking handle (9). Push the handwheel (8) to the right until the pointer (17) points to the required angle on the scale (d). Tighten the locking handle (9) securely.

9.0 Sawing operations

Important! After each new adjustment it is advisable to carry out a trial cut in order to check the set dimensions. After switching on the saw, wait for the blade to reach its maximum speed of rotation before commencing with the cut. Take extra care when starting the cut!

9.1 Making longitudinal cuts (Fig. 17)

This involves cutting through a workpiece along its length. One edge of the workpiece is pressed against the parallel stop (7) while its flat side rests on the saw table (1). The saw blade guard (2) must always be lowered onto the workpiece. When making longitudinal cuts you must never adopt a working position that is in line with the cut. Anl. TKS 250 03.05.2002 9:47 Uhr Seite 19 Switch on the saw. With your fingers together, place your hands flat on the workpiece and push the workpiece along the parallel stop (7) against the saw blade (4). Guide the workpiece at the side with your left hand only as far as the front edge of the guard hood. Always push the workpiece through to the end of the splitter (5). Leave the off-cuts on the saw table (1) until the saw blade (4) has stopped again. Secure long workpieces against sagging at the end of the cutting operation (e.g. with a roller table etc.).

9.1.2 Cutting narrow workpieces (Fig. 18)

Longitudinal cuts in workpieces smaller than 120 mm in width must always be made with the help of a push stick. A push stick is supplied with your bench- type circular saw. Worn or damaged push sticks must be replaced immediately.

9.1.3 Cutting extremely narrow workpieces,

for L 30 mm (Fig. 19) Longitudinal cuts in extremely narrow workpieces with a width of 30 mm and smaller must always be made with the help of a push block. In these cases it is better to use the lower guide surface of the parallel stop. Your bench-type circular saw is not supplied with a push block! (Ask your specialist dealer.) Worn push blocks must be replaced without delay.

9.1.4 Making covered cuts (Fig. 20)

The removable saw blade guard and the infinitely adjustable cutting height from 0 to 76 mm mean that the machine can be used to produce covered cuts and grooves. Remove the saw blade guard (2) (see 7.1). Set the splitter (5) for making covered cuts (see

Set the required cutting depth (8.2). Fit the parallel stop (7) to the right of the saw blade and set to the required width (see 8.3). Push the workpiece against the saw blade (4), making sure as you do so that the workpiece rests firmly on the saw table (1). Select the cutting sequence so that the cut strip Immediately after completing the cutting operation, re-fit the saw blade guard (2).

9.1.5. Making bevel cuts (Fig. 21)

Always use the parallel stop (7) when cutting bevels. Set the saw blade (4) to the required angle size (see 8.5). Set the parallel stop (7) to suit the width and height of the workpiece. Carry out the cut in accordance with the workpiece width (see 9.1.2 and 9.1.3).

9.2 Making cross cuts (Fig. 22)

Push the cross stop (14) into one of the two slots (a) of the saw table (1) and set to the required angle size (see 8.4). If you also want to set the saw blade (4) at an angle, use the slot which prevents your hand and the cross stop coming into contact with the saw blade. Use the stop rail (25) if necessary. Press the workpiece firmly against the cross stop (14). Switch on the saw. Push the cross stop (14) and the workpiece toward the saw blade in order to make the cut. Important: Always hold the guided part of the workpiece. Never hold that part of the workpiece which is being cut off. Always push the cross stop (14) far enough forward for the workpiece to be cut through completely. Switch off the saw again. Wait for the saw blade to stop before you remove the off-cuts.

Important: Pull out the power plug. Remove dust and dirt regularly from the machine. Cleaning is best done with a fine brush or a rag. Never use caustic agents to clean plastic parts.

11.0 Ordering replacement parts

Please quote the following data when ordering replacement parts: Type of machine Article number of the machine