Circular Shaw
Potential Hazards: Exposed moving blade and electrical hazard with the potential to cause harm through entanglement, cutting, impact, abrasion, exposure to noise, projectiles, sharp objects, and friction.
To safely use a circular saw, select the blade appropriate to the job, firmly attach it to the saw using the arbor nut, then adjust the sole plate for proper height and bevel for the job. When ready to cut, plug the saw into an electrical outlet, firmly hold the handle, align the blade near (not touching) the mark to be cut, press the safety switch, then press the trigger switch. Slowly follow the cut mark. When nearly done, make sure the end of the wood being cut is held and will not splinter due to the unsupported weight. For safety, remember that the teeth are sharp and should not be placed on surfaces that they could damage.
Risk and Hazards Prevention:
- Cutting : Be cautious of moving blade and force from machine movement
- Entanglement – No loose Clothing, No Jewellery or accessories, Long Hair must be contained
- Flying Object : Wear eye protection when operating an electric circular saw.
- Protection : Use appropriate PPEs prior to start of work
- Health : Use dust mask to avoid inhalation of fumes and dusts
- Injury : Pinching from work piece shifting use proper work holding strategies during operation
Use Of Circular Shaw
1. PRE-Operation:
Always begin by setting-up your work area safely to avoid the following: Trip hazard, uncomfortable working conditions, electrical hazards, crowded work spaces (other students) and other dangerous situations
- Use only in designated area. Use screens or curtains to contain hazards
- Ensure the appropriate blade is correctly in place
- Work piece - Ensure work piece is securely clamped and is free of any loose portions which could jar the machine and operator damage blade or become entangled
- Be prepared to firmly grip the tool when in use
- Plan your cut to ensure that your blade will not cut anything unintentionally. Ie: Work table
- Identify ON/OFF switch
- Inspect electrical cord
2. Operation:
- Leave machine unplugged until ready for use
- Ensure all other students are clear of immediate work area
- Keep fingers, hands and cables free of blade and surrounding area
- Check that the blade runs ‘true’ and does not wobble. Excess vibration must be identified and addressed immediately
- Do not make adjustments while machine is plugged in – un-plug to make adjustments
- Un-plug saw from wall/socket before changing the blade or making adjustments.
- Allow blade to reach working speed before applying to work piece. Increase working loads gradually. Never abruptly. Use smooth fluid motions
- Make only straight cuts – Do not attempt curved cuts
- Be aware of flying debris, dust and particulate. Aim debris away from self and other people
- Turn saw off when not in use
- Ensure machines have been isolated from power sources before being cleaned, adjusted, maintained or repaired.
- Un-plug when not in use
3. POST-Operation:
- Un-plug the cable from electric power sources
- Ensure blade is and saw are still in good condition before putting away
- Store cord in such a way that it is not in contact with the blade
- Never carry any power tool by its cord
4. Maintain a Circular Saw
- Circular saws need periodic cleaning with an unused paint brush or an air supply tremove sawdust.
- Better-quality circular saw blades can be professionally sharpened as needed. Less-expensive blades are more economical to replace.
- For any rectification work contact authorized / competent technician.
👀 In addition, circular saws have height/depth and bevel adjustments. Refer to the circular saw's operations manual for specifics.
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