PROFECO 77446 Electric Hand Circular Saw 1300W Ø185mm Instruction Manual

PROFECO 77446 Electric Hand Circular Saw 1300W Ø185mm

General safety warnings for power tools

Read all safety warnings and instructions. Failure to follow the warnings and
instructions may result in electric shock, fire and/or serious injury.
Keep all warnings and instructions for future reference.
The term “electrical appliance” in the warnings refers to your mains-operated (corded) electrical appliances or your battery-operated (cordless) electrical appliances.

Safety at the workplace

a. Keep the workplace clean and well lit. Cluttered or dark areas invite accidents.
b. Do not use power tools in explosive atmospheres, such as in the presence of flammable liquids, gases or dusts. Power tools create sparks which may ignite the dust or fumes.
c. Keep children and bystanders away when operating a power tool.
Distractions can cause you to lose control.

Electrical safety

a. The plugs of power tools must match the socket. Do not modify the plug in any way. Do not use adapters with grounded power tools. Non-matching plugs and matching outlets reduce the risk of electric shock.
b. Avoid physical contact with grounded surfaces such as pipes, radiators, cookers and refrigerators. There is an increased risk of electric shock if your body is earthed.
c. Do not expose power tools to rain or wet conditions. Water entering a power tool increases the risk of electric shock.
d. Do not misuse the cord. Never use the cord to carry, pull or disconnect the power tool. Keep the cord away from heat, oil, sharp edges or moving parts.
Damaged or tangled cords increase the risk of electric shock.
e. When using a power tool outdoors, use an extension cord suitable for outdoor use. The use of a cord suitable for outdoor use reduces the risk of electric shock.
f. If the use of an electrical appliance in a damp environment is unavoidable, use a power supply with a residual current device (RCD).
The use of an RCD reduces the risk of electric shock.
NOTE: The term residual current device (RCD) may be replaced by the term residual current device (GFCI) or residual current device (ELCB).

Personal safety

a. Stay alert, watch what you are doing and use common sense when operating a power tool. Do not use a power tool if you are tired or under the influence of drugs, alcohol or medication. A moment’s inattention while operating a power tool can result in serious personal injury.
b. Use personal protective equipment. Always wear eye protection. Protective equipment such as dust mask, non-slip safety shoes, safety helmet or hearing protection used under proper conditions will reduce personal injuries.
c. Make sure the switch is in the off position before connecting the tool to the power source and/or battery, picking up or carrying. Carrying power tools with your finger on the switch or energizing power tools with the switch on invites accidents.
d. Remove a spanner or key before turning on the power tool. A spanner or key left attached to a rotating part of the power tool may cause personal injury.
e. Do not overreach. Be sure to stand firmly and always keep your balance. This will help control the power tool in unexpected situations.
f. Dress appropriately. Do not wear loose clothing or jewellery. Keep your hair, clothing and gloves away from moving parts. Loose clothing, jewellery or long hair can become entangled in moving parts.
g. If dust extraction and collection facilities are provided, make sure they are connected and used properly. The use of dust extraction can reduce disrelated hazards.

Use and maintenance of power tools

a. Do not force the power tool. Use the correct power tool for your application.
The right power tool will do the job better and safer at the rate it is designed.
b. Do not use the power tool if it cannot be turned on and off with the switch. Any power tool that cannot be controlled with the switch is dangerous and must be repaired.
c. Unplug the power tool and/or remove the battery pack from the power tool before making any adjustments, changing accessories or using power tools.
Such preventive safety measures reduce the risk of starting the power tool accidentally.
d. Store idle power tools out of the reach of children and do not allow persons unfamiliar with the power tool or these instructions to operate the power tool.
Power tools are dangerous in the hands of untrained users.
e. Maintain power tools. Check for misalignment or binding of moving parts, breakage of parts and any other condition that may affect the power tool’s operation. If damaged, have the power tool repaired before use. Many accidents are caused by poorly maintained power tools.
f. Keep cutting tools sharp and clean. Properly maintained cutting tools with sharp cutting edges are less likely to seize and are easier to control.
g. Use the power tool, accessories and tool bits etc. in accordance with these instructions, taking into account the working conditions and the work to be performed. Using the power tool for work other than that intended may result in dangerous situations.

Service
Have your power tool serviced by a qualified repair person using only identical
replacement parts. This will ensure that the safety of the power tool is maintained.

Specific safety instructions

a. DANGER: Keep your hands away from the cutting area and the blade. Keep your second hand on the additional handle or the engine housing. If both hands are holding the saw, they cannot cut through the blade with the original instructions.
b. Do not reach under the workpiece. The protective cover cannot protect you from the blade under the workpiece.
c. Adjust the depth of cut to the thickness of the workpiece. Less than one full tooth of the blade should be visible under the workpiece.
d. Never hold the workpiece in your hands or over your leg. Secure the workpiece on a stable platform. It is important to support the workpiece properly to minimize body exposure, blade binding or loss of control.
e. Hold the power tool by insulated gripping surfaces when performing any operation where the cutting tool may encounter concealed wiring or its own cord. Contact with a “live” wire will also make exposed metal parts of the power tool “live” and shock the user.
f. Always use a rip fence or straight fence when ripping. This improves the accuracy of the cut and reduces the risk of blade binding.
g. Always use blades with the correct size and shape (diamond shaped versus round) of the shaft holes. Blades that do not match the saw’s mounting hardware will run eccentrically, causing you to lose control.
h. Never use damaged or incorrect blade rings or bolts the blade rings and bolts are designed specifically for your saw, for optimum performance and safe use.

Causes and prevention of kickback by the operator:
a. Kickback is a sudden reaction to a clamped, bound or misaligned saw blade, causing an uncontrolled saw lift up and out of the workpiece in the direction of the operator;
b. If the guide bar is clamped or bound due to the cut closing down, the guide bar locks and the motor reaction drives the tool quickly back towards the operator;
c. If the blade becomes twisted or misaligned during the cut, the teeth on the rear of the blade may dig into the top of the wood, causing the blade to climb out of the kerf and recede back towards the operator.

Kickback is the result of improper use of the saw and/or incorrect working
procedures or conditions and can be avoided by taking the appropriate
precautions, as indicated below.
a. Hold the saw firmly with both hands and position your arms to resist kickback forces. Place your body on either side of the guide bar, but not in line with it.
b. If the guide bar jams, or if you interrupt a cut for any reason, release the trigger and hold the saw motionless in the material until the guide bar has come to a complete stop. Never try to remove the saw from the work or pull the saw backwards while the blade is moving, otherwise kickback may occur.
c. When restarting a saw in the workpiece, centre the saw blade in the kerf and check that the saw teeth have not jammed in the material.
d. Support large panels to minimise the risk of pinching the saw blade and kickback.
e. Do not use blunt or damaged saw blades. Unsharpened or improperly adjusted saw blades produce a narrow cut, leading to excessive friction, blade binding and kickback.
f. The locking levers for blade depth and bevel must be tightened securely before cutting. If the blade adjustment shifts while cutting, it may cause binding and kickback.
g. Take extra care when sawing in existing walls or other blind areas. The leading saw blade may cut into objects that may cause kickback.

 Function of lower guard

a. Check that the lower protective cover closes properly before each use. Do not use the saw if the lower guard does not move freely and does not close immediately. Never clamp or bind the lower guard in the open position. If the saw accidentally falls, the lower guard may be bent. Raise the lower guard using the retractable handle and check that it moves freely and does not touch the guide bar or other components, at all cutting angles and depths.
b. Check the function of the spring of the lower guard. If the guard and spring are not working properly, they should be checked before use. The lower guard may operate slowly due to damaged parts, sticky deposits or accumulation of dirt.
c. The lower guard may only be retracted manually for special cuts, such as “plunge cut and compound cut”. Raise the lower guard by pulling the lever and release the lower guard as soon as the saw blade touches the material. For all other cutting operations, the lower guard should operate automatically.
d. Always check that the lower guard covers the saw blade before placing the saw on the workbench or floor. An unprotected, receding saw blade will cause the saw to run backwards and cut through anything in its path. Note the time it takes for the guide bar to stop after the switch is released.

Technical data

a. Technical specifications

42 mm @ 45 degrees

1. Saw blade
2. Blade guard
3. Base plate
4. Lever for lower protective cover
5. Dust extraction port
6. Upper blade protector
7. Tear-off guide
8. Allen key for blade
9. Scale bar
10. Chamfer Clamp
11. Locking screw of the rip fence
12. Blade bolt and washer
13. Locking knob
14. ON/OFF switch
15. Depth guide bracket
16. Depth lever
17. Rear Motor
18. Spindle lock button

 Mounting

WARNING : Before carrying out any work on the machine, the main plug must be removed from the socket.
To prevent unintentional start-up, make sure that the lock button is not engaged
before you insert the plug and that your finger does not touch the trigger of the
on/off switch.

Mounting/replacing the saw blade
a. Lay this circular saw on its side on a flat surface. (We recommend that you set the base plate (3) to its maximum depth so that it is easy to operate).
b. Push the spindle lock button (18) in the direction of the main body and keep it firmly pressed down.
c. Turn the blade clamp bolt counter clockwise using the spanner (8) provided.
d. Remove the knife clamp bolt with washer and outer flange and release the spindle lock button (18).
e. Raise the lower protective cover (2) using the lower protective cover lever and then remove the saw blade.
f. Clean the saw blade flanges. Turn the lower protective cap (2) to the maximum protective position and keep it there, then mount the new saw blade on the output shaft and against the inner flange.
g. Make sure the saw teeth and the arrow on the saw blade are in the same direction as the arrow on the main housing.
h. Loosen the lower protective cap (2).
i. Replace the outer flange with the hollow side inwards, first press the spindle lock button (18) and then tighten the blade clamp bolt.
j. Check that the saw blade runs freely by turning it by hand.

Installation of the draglink (see Fig.2)
Perform the following steps to install the rip fence on the machine.
a. Pull the plug of your circular saw out of the mains socket.
b. Insert the rip fence (7) through the three slots of the base plate (3) at the front of the saw, starting with the slot in the left side of the base plate.
c. Slide the left guide through the slots until it protrudes on the right side of the base plate.
d. Adjust the rip fence to the desired cutting width and then tighten the rip fence locking screw (11) firmly.

Operation
WARNING : Ensure that the mains voltage is correct! The voltage of the power source must correspond to the voltage specified on the type plate of the appliance.

On/off switch
a. Connect the plug to the power supply, the power light is on until the plug is removed from the socket.
b. Switch the unit on or off by pressing or releasing the switch.
c. For continuous use, simply press the lock button on the left-hand side of the handle.

Cutting methods
Adjusting parallel cuts
a. Loosen the locking knob of the edge guide.
b. Slide the edge guide through the slots in the shoe to the desired width.
c. Tighten the locking knob to secure it in position.
d. Make sure that the edge guide rests against the wood for its entire length to achieve a consistent parallel cut.

Depth adjustment (See Fig.3)
a. Pull the plug of your circular saw out of the mains socket.
b. Loosen the depth guide clamp lever on the back of the saw.
c. Hold the base plate against the edge of the workpiece  and lift the body of the saw until the saw blade is atthe correct depth determined by the depth gauge (align the scale line).
d. Secure the base plate by tightening the lever.

ATTENTION : Always maintain the correct cutting depth setting. The cutting depth for all cuts should be no more than 1/4H below the material to be cut. Excessive cutting depth increases the risk of kickback.
Angle adjustment (See Fig.4)
a. Loosen the tilted scale bracket for angle adjustment.
b. Push down the base plate and adjust to the desired angle between 0° and 45
c. Tighten the bevel scale bracket.

Replacing the carbon brushes
For safety reasons, the machine shuts down automatically if the carbon brushes are so worn that they no longer make contact with the motor. In this case, the carbon brushes must be replaced with a pair of similar carbon brushes available from the after-sales service or a qualified professional. Using a screwdriver, loosen the carbon brush cover counter clockwise, open the cover and remove the carbon brushes. If they are 6 mm or less, they must both be replaced. Fit new carbon brushes and replace the brush housing.

Accessories

materials

Maintenance

Never use aggressive cleaning agents or solvents for cleaning.
a. To avoid accidents, always unplug the saw before cleaning or servicing it the most effective way to clean the saw is with compressed air. Always wear safety glasses when using compressed air. If compressed air is not available, use a brush to remove dust and chips from the saw.
b. Engine vents and switch levers must be kept clean and free of foreign objects.
Do not attempt to clean by inserting pointed objects through openings.
c. Never use corrosive substances to clean plastic parts. Such as: petrol, carbon tetrachloride, chlorinated detergents, ammonia and household cleaners containing ammonia. Do not use any of these agents to clean the saw.
d. In case of excessive parking, have an authorized service centre examine and/or replace the worn-out carbon brushes.
e. A sure sign of a dull saw blade is the need to push the saw forward instead of guiding it when making a cut. Take the blade to a service centre to have it sharpened.
f. Always keep the machine clean.
g. If you notice any damage, refer to the exploded view and the parts list to determine exactly which replacement part to order from our customer service department.
h. Only clean the housing with a damp cloth. Do not use solvents! Then dry well.
i. If the power cord of this electrical appliance is damaged, it must be replaced with a similar cord available from the service organisation or a qualified, authorised technician.

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