Thứ Tư, 24 tháng 2, 2016

Security with a band saw – push – and drill

What should you do before using a band saw?
• Band mill can be dangerous if it is not used properly.
• Carefully read the instruction of use.
• Make sure you understand the instructions before using any tool or machine.
• Know the uses and limitations of the tools and machines before using them.
• Ensure that the band saw is well anchored to the ground (or a set of appropriate height) to reduce vibration.
• See website entitled Woodworking Machines - General Safety Tips for more information on how to use the machines Woodworking safely.
 What safety measures should be taken when using a band saw?
• Wear safety goggles or face shield.
• Wear protective ear for the appropriate level and frequency of the noise you are exposed to in the woodworking shop.
• Ensure that all guards are in place and properly adjusted. Ensure that all flying are covered.
• Set the blade guard so that it is approximately 3 mm (1/8 inch) above the top of the work piece.
• Ensure that the blade does not deviate from its path and rotates freely between the upper and lower guide rollers.
• Ensure that the blade is tight. It is recommended to use a band saw equipped with an automatic tensioner.
• Use only blades which are well sharpened, well regulated and well suited to the job (ie d. With good pace, good shape, good width).
• Hold the work piece firmly, flat on the tray to prevent rotation or cause the fingers of the operator in the path of the blade. Rely hands against the board.
• Use a push to remove the cut pieces between the rip fence and the blade or when hands are likely to approach the blade. Keep hands on each side of the blade, never opposite the cutting line or the blade.
• Make relief cuts prior to changing direction in tight intricate carvings.
• Keep the floor clean and free of obstacles and clutter around the saw.
• Keep well-oiled and in good condition machine.
• Ensure that the plate of the saw is properly informed. A flexible connection to luminaire can provide excellent lighting.
What should you avoid when working with a band saw?
• Do not use excessive force to push the work piece against the blade.
• If the part gets stuck or clamp the blade, do not back off while the blade is in motion.
• Do not attempt to abruptly stop the blade by pushing a piece against the cutting edge or side of the blade immediately after turning off the power.
• Do not use hands or compressed air to remove sawdust or chips from the board. Using a stick or a brush.
• Do not leave the saw unattended. Disconnect the power supply and ensure that the blade has stopped rotating before leaving the scene.
When to use push?

For the machine operators working on the ordinary wood (eg. Bench saws, band saws, radial arm saws, planers and moulders), should always use push buttons or blocks. They protect your hands while allowing good control in advance of the part in the tool or blade. The push blocks planers should be designed to be handled with both hands.
What should be the main features of a push?
• The restraint must push blocks:
• be rigid;
• be designed to protect the good hands of the operator;
• allowing the operator to apply firm, steady pressure on the work piece.  
Security with a drill
What should you do before using a drill press?
Column drills can be dangerous if not used properly.
• Read the operator's manual.
• Make sure you understand instructions and are properly trained before operating a drill press.
What safe work practices applied when using a drill press?
• Wear appropriate safety glasses.
• Ensure that the power button / stop the drill is easily accessible to the operator.
• Remove chips from the vacuum cleaner, brush or broom.
• Remove burrs and chips from the hole. Clean frequently during deep drilling hole.
• Using a clamp or vise bore to prevent the piece from rotating.
• Sprinkle a bit when drilling metal.
• Reduce the pressure of drilling when the drill bit through the room. This avoids the sudden plunge of the drill into the room and his break.
• Keep clean and sharp drills. The dulling of the drill is a common cause of failure.
• Keep the floor around the drill press free of oil and grease.
• Keep the work area clean of scraps, tools and materials.
• Keep guards in place and in good condition.
What should you avoid doing when using a drill press?
• To wear loose clothing or tie
• To wear gloves, rings, a wristwatch or bracelet.
• To regulate the speed, adjust or measure a part before the machine has completely stopped.
• To let the wrench into the chuck. It is appropriate to remove the key immediately after making the desired settings.
• To hold the work piece to be drilled by hand for drilling over 12 holes mm (1/2 inch) in diameter.
• Hold hands under the part to be drilled.
• To lock the rotation of the mandrel or of the spindle with its hands.
• To remove a broken drill using a hammer and punch.

• To let the drill run unattended.