Fein MKAS 355 Metal Cut Off Saw Instruction Manual

Fein MKAS 355 Metal Cut Off Saw

OVERVIEW

SPECIFICATIONS

INSTALLATION

speed Level

RECYCLING

BLADE REPLACMENT

TOOLS REQUIRD

Symbols

Symbols, abbreviations and terms used

For your safety.

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

Save all warnings and instructions for future reference.

Do not use this power tool before you have thoroughly read and completely understood this Instruction Manual and the enclosed “General Safety Instructions” (document number 3 41 30 465 06 0). The documents mentioned should be kept for later use and enclosed with the power tool, should it be passed on or sold. Please also observe the relevant national industrial safety regulations.

Intended use of the power tool

Transportable metal chopsaw for use with the application tools and accessories recommended by FEIN in weather-protected environments for lengthways and crossways cuts in metal materials:

• with straight cutting sequence and
•  mitre angles to 45° and
•  without the use of water.

In environments subject to interference, a reduction of the operating quality is possible; this can include temporary failure, temporary reduction of the function or the intended operating behaviour, for the correction of which intervention by the operator is required. This power tool is also suitable for use with AC generators with sufficient power output that correspond to the Standard ISO 8528, design type G2. This Standard is particularly not complied with when the so-called distortion factor exceeds 10 %. When in doubt, please refer to the generator instruction/specification guide. Observe the operating instructions and the national regulations for the installation and operation of the AC generator.

Special safety instructions.

• The transportable metal chopsaw is intended for cutting metal materials such as rods, bars, screws, etc., it may not be used for sawing wood. Sawing wood is not permitted.
• Use clamps to support the workpiece whenever possible. If supporting the workpiece by hand, you must always keep your hand at least 100 mm from either side of the saw blade. Do not use this saw to cut pieces that are too small to be securely clamped or held by hand. If your hand is placed too close to the saw blade, there is an increased risk of injury from blade contact.
• The workpiece must be stationary and clamped or held against both the fence and the table. Do not feed the workpiece into the blade or cut “freehand” in any way. Unrestrained or moving workpieces could be thrown at high speeds, causing injury.
• Never cross your hand over the intended line of cutting either in front or behind the saw blade. Supporting the workpiece “cross handed” i.e. holding the workpiece to the right of the saw blade with your left hand or vice versa is very dangerous.
• Do not reach behind the fence with either hand closer than 100 mm from either side of the saw blade, to remove wood scraps, or for any other reason while the blade is spinning. The proximity of the spinning saw blade to your hand may not be obvious and you may be seriously injured.
• Inspect your workpiece before cutting. If the workpiece is bowed or warped, clamp it with the outside bowed face toward the fence. Always make certain that there is no gap between the workpiece, fence and table along the line of the cut. Bent or warped workpieces can twist or shift and may cause binding on the spinning saw blade while cutting. There should be no nails or foreign objects in the workpiece.
• Do not use the saw until the table is clear of all tools, metal waste or cut-offs, etc., except for the workpiece. Small debris or loose pieces of metal or other objects that contact the revolving blade can be thrown with high speed.
• Cut only one workpiece at a time. Stacked multiple workpieces cannot be adequately clamped or braced and may bind on the blade or shift during cutting.
• Ensure the metal chopsaw is mounted or placed on a level, firm work surface before use. A level and firm work surface reduces the risk of the metal chopsaw becoming unstable.
• Plan your work. Every time you change the mitre angle setting, make sure the adjustable fence is set correctly to support the workpiece and will not interfere with the blade or the guarding system. Without turning the tool “ON” and with no workpiece on the table, move the saw blade through a complete simulated cut to assure there will be no interference or danger of cutting the fence.
• Provide adequate support such as table extensions, saw horses, etc. for a workpiece that is wider or longer than the table top. Workpieces longer or wider than the metal chopsaw table can tip if not securely supported. If the cut-off piece or workpiece tips, it can lift the lower guard or be thrown by the spinning blade.
• Do not use another person as a substitute for a table extension or as additional support. Unstable support for the workpiece can cause the blade to bind or the workpiece to shift during the cutting operation pulling you and the helper into the spinning blade.
• The cut-off piece must not be jammed or pressed by any means against the spinning saw blade. If confined, i.e. using length stops, the cut-off piece could get wedged against the blade and thrown violently.
• Always use a clamp or a fixture designed to properly support round material such as rods or tubing. Rods have a tendency to roll while being cut, causing the blade to “bite” and pull the work with your hand into the blade.
• Let the blade reach full speed before contacting the workpiece. This will reduce the risk of the workpiece being thrown.
• If the workpiece or blade becomes jammed, turn the metal chopsaw off. Wait for all moving parts to stop and disconnect the plug from the power source and/or remove the battery pack. Then work to free the jammed material. Continued sawing with a jammed workpiece could cause loss of control or damage to the metal chopsaw.
• After finishing the cut, release the switch, hold the saw head down and wait for the blade to stop before removing the cut-off piece. Reaching with your hand near the coasting blade is dangerous.
• Hold the handle firmly when making an incomplete cut or when releasing the switch before the saw head is completely in the down position. The braking action of the saw may cause the saw head to be suddenly pulled downward, causing a risk of injury.
• Causes and operator prevention of kickback Kickback is a sudden reaction to a pinched, bound or misaligned saw blade, causing an uncontrolled saw to lift up and out of the workpiece toward the operator. When the blade is pinched or bound tightly by the cut closing down, the blade stalls and the motor reaction drives the unit rapidly back toward the operator. If the blade becomes twisted or misaligned in the cut, the teeth at the back edge of the blade can dig into the top surface of the metal, causing the blade to climb out of the cut and jump back toward the operator. Kickback is the result of saw misuse and/or incorrect operating procedures or conditions and can be avoided by taking proper precautions as given below.
• Maintain a firm grip on saw handle and position your arms to resist kickback forces. Position your body to either side of the blade, but not in line with the blade. Kickback could cause the saw to jump backwards, but kickback forces can be controlled by the operator if proper precautions are taken.
• When blade is binding or when interrupting a cut for any reason, release the trigger and hold the saw motionless in the material until the blade comes to a complete stop.
• Never attempt to remove the saw from the work or remove the saw blade from the work piece while in motion or kickback may occur. Investigate and take corrective actions to eliminate the cause of blade binding.
• When restarting a saw in the workpiece, center the saw blade in the cut and check that saw teeth are not engaged into the material. If saw blade is binding, it may walk up or kickback from the workpiece as the saw is restarted.
• Support long material lengths to minimize the risk of blade pinching and kickback. Long length materials tend to sag under their own weight. Supports must be placed under the material on both sides near the line of cut and near the edge of the material.
• Do not use dull or damaged blades. Unsharpened or improperly mounted blades produce narrow cuts causing excessive friction, blade binding and kickback.
• Blade depth and bevel adjusting locking levers must be tight and secure before making cut. If blade adjustment shifts while cutting, it may cause binding and kickback.
• Do not use accessories which are not specifically designed and recommended by the tool manufacturer. Just because the accessory can be attached to your power tool, it does not assure safe operation.
• Wear personal protective equipment. Depending on application, use face shield, safety goggles or safety glasses. Where appropriate, wear dust mask, hearing protectors, gloves and workshop apron capable of stop-ping small abrasive or workpiece fragments. The eye protection must be capable of stopping flying debris generated by various operations. The dust mask or res-pirator must be capable of filtrating particles generated by your operation. Prolonged exposure to high inten-sity noise may cause hearing loss.
• Keep bystanders a safe distance away from work area. Anyone entering the work area must wear personal pro-tective equipment. Fragments of workpiece or of a bro-ken accessory may fly away and cause injury beyond immediate area of operation.
• Regularly clean the power tool’s air vents. The motor’s fan will draw the dust inside the housing and excessive accumulation of powdered metal may cause electrical hazards.
• Do not operate the power tool near flammable materi-als. Sparks could ignite these materials.
• Do not use accessories that require liquid coolants. Using water or other liquid coolants may result in elec-trocution or shock.
• Secure the work piece firmly. A work piece that is gripped tightly in a clamping device or vice, is more secure than if held by hand.
• Before putting into operation, check the mains connec-tion and the mains plug for damage.
• Always operate the power tool with together with a PRCD personal protection switch ().Before beginning to work, always check the proper functioning of the PRCD personal protection switch () (see page 30).
• Further safety warnings
• Use ear protection during operation.
• Use a stationary extraction system, blow out ventilation slots frequently and connect a residual current device (RCD) on the line side. When working metal under extreme operating conditions, it is possible for conduc-tive dust to settle in the interior of the power tool. The total insulation of the power tool can be impaired.
• Do not rivet or screw any name-plates or signs onto the power tool. If the insulation is damaged, protection against an electric shock will be ineffective. Adhesive labels are recommended.
• Do not work with materials containing magnesium. Danger of fire.
• Do not work with CFRP (carbon-fiber-reinforced poly-mer) and materials containing asbestos. These materi-als are considered carcinogenic.

Hand/arm vibrations

• The vibration emission level given in this information sheet has been measured in accordance with a stand-ardised test given in EN 62841 and may be used to compare one tool with another. It may be used for a preliminary assessment of exposure.
• The declared vibration emission level represents the main applications of the tool. However, if the tool is used for different applications, with different accesso-ries or poorly maintained, the vibration emission may differ. This may significantly increase the exposure level over the total working period.
• An estimation of the level of exposure to vibration should also take into account the times when the tool is switched off or when it is running but not actually doing the job.
• This may significantly reduce the expo-sure level over the total working period.
• Identify additional safety measures to protect the oper-ator from the effects of vibration such as: maintain the tool and the accessories, keep the hands warm, organi-sation of work patterns.

Handling hazardous dusts

• For work procedures with this power tool where material is removed, dusts develop that can be hazard-ous to one’s health.
• Contact with or inhaling some dust types, e. g. asbestos and asbestos-containing materials, lead-containing coat-ings, metal, some wood types, minerals, silicate parti-cles from materials containing stone, paint solvents, wood preservatives, antifouling paints for vessels, can trigger allergic reactions to the operator or bystanders and/or lead to respiratory infections, cancer, birth defects or other reproductive harm. The risk from inhaling dusts depends on the exposition. Use dust extraction matched appropriately for the developing dust, as well as personal protective equipment and pro-vide for good ventilation of the workplace. Leave the processing of asbestos-containing materials to special-ists.
• Wood and light-metal dust, hot mixtures of grinding dust and chemical materials can self-ignite under unfa-vourable conditions or cause an explosion. Avoid sparking in the direction of the dust collector as well as overheating of the power tool and the materials being sanded, empty the dust collector/container in time, observe the material manufacturer’s working instruc-tions, as well as the relevant regulations in your country for the materials being worked.

Operating Instructions

• Guide the power tool toward the workpiece only when switched on. Otherwise, the workpiece and application tools may be damaged.

• Always carry out a test cut, as the scale for the mitre angle has a certain tolerance. Readjustment may possi-bly be required.

• Cut only one workpiece at a time. Stacked multiple workpieces cannot be adequately clamped or braced and may bind on the blade or shift during cutting.

• WARNING Danger of injury from chippings.

• Always keep your hands, clothing etc. away from chippings. Do not attempt to remove the application tool when still rotating. This can lead to serious injuries.

• WARNING Danger of burning. The application tool can become hot during opera-tion. Before tool changing, allow the application tool to cool down.

• Mounting on the working surface (see page 4) Mount the power tool to the working surface with suit-able screw connections.

• Adjusting the depth stop (see page 6)

• When the depth stop is set too low, there is a risk of sawing into the chip/grinding-dust box or saw table. Do not adjust the depth stop too low.
  Vice (see page 9)

• The vice can be fastened in two positions. To move the vice, loosen the corresponding screws, lift the vice out of the holes and reposition the vice. Fasten the vice again with the two screws.

• Electronic soft starting

• The electronic soft starting feature limits the torque when switching on and thus increases the motor’s serv-ice life.

• Rotation direction of the saw blade

• When installing the saw blade, make sure that the cut-ting direction of the teeth (arrow direction on saw blade) corresponds to the arrow direction on the wheel guard.

• Speed of the saw blade

• The speed of the saw blade must at least correspond to the rated speed of the power tool.

• Spindle lock (see pages 12/15)

• Before switching on the power tool and after changing the saw blade, make sure that the spindle is not locked.

• Replacing the carbon brushes

• The carbon brushes may only be changed by the after-sales service.

Clamping range 165 mm (see page 9) Permissible workpiece dimensions for mitre angle 0°

Permissible workpiece dimensions for mitre angle 45°

Clamping range 185 mm (see page 9) Permissible workpiece dimensions for mitre angle 0°

PRCD personal protection switch
(see page 11)

The PRCD personal protection switch is specifically for your protection; therefore, do not misuse it as on On/Off switch.
If the PRCD personal protection switch is damaged, e.g. due to contact with water, do not use it any more. The PRCD personal protection switch is indispensable; it is used for protection of the power tool operator against electric shock. Under fault-free operation, the control lamp of the PRCD personal protection switch lights up.
Check the operability of the PRCD personal protection switch before beginning to work:

1. Connect the plug of the PRCD personal protection switch with the mains socket outlet.
2. Press the RESET–button. The indication light on the PRCD personal protection switch lights up.
3. Disconnect the plug from the socket outlet. The indi-cation light goes out.
4. Repeat steps 1. and 2.
5. Press the TEST–button; the indication light goes out. If the indication light does not go out, do not run the machine. In this case, contact the customer service.
6. Press the RESET–button; when the indication light lights up, the machine can now be switched on.
   Do not use the PRCD personal protection switch for switching the power tool on and off.

Power tool lubrication
To prolong the life of the power tool, apply oil to the following points every month (also refer to page 16):

• Rotating part of the shaft
• Rotating part of the vice
• Gliding path of the vice

Transport (see page 4)

For transport, hook the chain and carry the power tool by the transport handle.

Repair and customer service.

• When working metal under extreme oper-ating conditions, it is possible for conductive dust to settle in the interior of the power tool.
• The total insulation of the power tool can be impaired. Blow out the interior of the power tool via the ventilation slots frequently with dry and oil-free compressed air.
• Products that have come into contact with asbestos may not be sent in for repair. Dispose of products con-taminated with asbestos according to the applicable country-specific regulations for such disposal.
• When the machine’s power supply cord is damaged, it must be replaced by the manufacturer or their repre-sentative.
• The current spares parts list for this power tool can be found on our website at www.fein.com

Use only original spare parts.

If required, you can change the following parts your-self:

Application tools

Warranty and liability.

The warranty for the product is valid in accordance with the legal regulations in the country where it is mar-keted. In addition, FEIN also provides a guarantee in accordance with the FEIN manufacturer’s warranty dec-laration.
The delivery scope of your power tool may include only a part of the accessories described or shown in this Instruction Manual.

Declaration of conformity

This CE declaration is only valid for European Union and EFTA (European Free Trade Association) countries and only for products intended for the EU- or EFTA market. After placing the product on the EU market the UKCA mark loses its mark validity.
The UKCA declaration is only valid for the Great Britain market (England, Wales and Scotland) and only for products intended for the Great Britain market. After placing the product on the Great Britain market the CE mark loses its mark validity.
FEIN declares itself solely responsible for this product conforming with the relevant provisions given on the last page of this Instruction Manual.
Technical documents at : C. & E. Fein GmbH, D-73529 Schwäbisch Gmünd Environmental protection, disposal.
Packaging, worn out power tools and accessories should be sorted for environmental-friendly recycling.

Fein-MKAS-355-Metal-Cut-Off-Saw-fig-22

www.fein.com

References

• High quality power tools and accessories | C. & E. Fein GmbH

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