Angle Grinder

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- (2) No person shall operate a grinder with an abrasive wheel unless the grinder is rated to provide a number of revolutions per minute equal to or less than the rating of the abrasive wheel. - (3) An employer shall ensure that, before the installation of an abrasive wheel, the abrasive wheel is inspected by a competent person for flaws, defects or cracks. Subsection 97(3) replaced: O.I.C. 2000-130, N.S. Reg. 52/2000; amended: O.I.C. 2013-65, N.S. Reg. 53/2013. - 98 (1) An employer shall ensure that a bench grinder is fitted with a protective hood and side shield of sufficient strength to contain fragments of a ruptured wheel. - (2 ) Where a bench or pedestal grinder is used, an employer shall ensure that - (a) a tool rest is mounted on the grinder not more than 3 mm from the abrasive wheel; and - (b) the grinder is secured to prevent unintended movement. - 99 Where a pneumatic grinder is used, an employer shall ensure that the governors are maintained by a competent person. - Section 99 amended: O.I.C. 2013-65, N.S. Reg. 53/2013. - 100 Unless the manufacturer's specifications otherwise specify, an employer shall ensure that no person - (a) grinds on the side of an abrasive wheel; or - (b) adjusts a tool rest while the abrasive wheel is in motion. ## Compressed air used for cleaning 101 - (1) In this Section, 'compressed air' means air at an absolute pressure greater than 275 kPa. - (2) Where compressed air is used to clean a surface or person, an employer shall ensure that the device that is used to deliver the air is - (a) commercially manufactured and approved in the manufacturer's specifications for the purpose of cleaning a surface or person with compressed air; or - (b) certified by an engineer as adequate for the purpose of cleaning a surface or person with compressed air. \_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_\_

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## OCCUPATIONAL HEALTH AND SAFETY, 2020 - (3) An employer or contractor shall ensure that a worker who operates an explosive actuated fastening tool: - (a) does not leave the tool or explosive charges unattended; - (b) stores the tool and explosive charges in a locked container when not in use; and - (c) uses an industrial eye or face protector that meets the requirements of Part 7. 31 Dec 2020 c S-15.1 Reg 10 s10-10. ## Airless spray units - 10-11 If a worker is required or permitted to use an airless spray unit that is capable of operating at a pressure greater than 7 megapascals, an employer or contractor shall ensure that: - (a) the gun, the reservoir and the pump are bonded to ground with a single continuous approved bonding conductor; and - (b) the gun is fitted with suitable tip and trigger guards. 31 Dec 2020 c S-15.1 Reg 10 s10-11. ## Grinding machines - 10-12 (1) An employer or contractor shall ensure that: - (a) no abrasive wheel is operated: - (i) unless it is equipped with blotters installed according to the manufacturer's recommendations and a safeguard; or - (ii) at a speed in excess of the manufacturer's recommendations; - (b) the maximum speed of each grinder shaft in revolutions per minute is permanently marked on the grinder; and - (c) the mounting flanges for an abrasive wheel have an equal and correct diameter for the wheel. - (2) If a tool rest is installed on a fixed grinder, an employer or contractor shall ensure that the tool rest is: - (a) installed in a manner that is compatible with the work process; - (b) securely attached to the grinder; and - (c) set not more than 3 millimetres from the face of the wheel or below the horizontal centre line of the wheel. - (3) An employer or contractor shall not require or permit a worker to use the sides of an abrasive wheel for grinding unless the abrasive wheel is designed for that use.

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## OCCUPATIONAL HEALTH AND SAFETY, 2020 S-15.1 REG 10 - (4) An employer or contractor shall ensure that a worker who operates a grinder: - (a) is provided with and uses the following personal protective equipment that meets the requirements of Part 7: - (i) an industrial eye or face protector; - (ii) hand or arm protection; and - (b) is instructed in the potential hazards and safe use of the grinder. 31 Dec 2020 c S-15.1 Reg 10 s10-12. ## Chain saws - 10-13 (1) An employer, contractor or supplier shall ensure that a chain saw is: - (a) equipped with an effective chain brake or a chain and bar that is designed to minimize the possibility of a kickback; and - (b) designed and constructed so that the chain stops when the engine is at idle. - (2) If a chain saw is to be used by a worker operating from an elevated cage or basket, the width of which is less than twice the length of the chain saw, an employer or contractor shall ensure that a secondary platform is installed outside the cage or basket and is used to store the chain saw and to start the chain saw engine. - (3) An employer or contractor shall ensure that a worker who operates a chain saw: - (a) stops the chain while the worker is walking with the saw; - (b) does not operate the saw at a height that is higher than the worker's shoulder level; - (c) holds the saw firmly in both hands while operating the saw; and - (d) maintains the chain saw, cutting chain and safeguards in safe operating condition. - (4) A worker who operates a chain saw: - (a) shall stop the chain while the worker is walking with the saw; - (b) shall not operate the saw at a height that is higher than the worker's shoulder level; - (c) shall hold the saw firmly in both hands while operating the saw; - (d) shall maintain the chain saw, cutting chain and safeguards in safe operating condition; and - (e) shall maintain the chain saw so that the chain stops when the engine is at idle. 31 Dec 2020 c S-15.1 Reg 10 s10-13.

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Division 3 AO 3-2019 Oregon Administrative Rules Oregon Occupational Safety and Health Division - (B) Equipment for protection of the eyes and face shall be supplied to the operator when the respirator design does not provide such protection and to any other personnel working in the vicinity of abrasive blasting operations. This equipment shall conform to the requirements of 1926.102. - (6) Air supply and air compressors. Air for abrasive-blasting respirators must be free of harmful quantities of dusts, mists, or noxious gases, and must meet the requirements for supplied-air quality and use specified in 29 CFR 1910.134(i). - (7) Operational procedures and general safety. Dust shall not be permitted to accumulate on the floor or on ledges outside of an abrasive-blasting enclosure, and dust spills shall be cleaned up promptly. Aisles and walkways shall be kept clear of steel shot or similar abrasive which may create a slipping hazard. - (8) Scope. This paragraph applies to all operations where an abrasive is forcibly applied to a surface by pneumatic or hydraulic pressure, or by centrifugal force. It does not apply to steam blasting, or steam cleaning, or hydraulic cleaning methods where work is done without the aid of abrasives. - (g) Grinding, polishing, and buffing operations. - (1) Definitions applicable to this paragraph. - (i) Abrasive cutting-off wheels . Organic-bonded wheels, the thickness of which is not more than one forty-eighth of their diameter for those up to, and including, 20 inches (50.8 cm) in diameter, and not more than onesixtieth of their diameter for those larger than 20 inches (50.8 cm) in diameter, used for a multitude of operations variously known as cutting, cutting off, grooving, slotting, coping, and jointing, and the like. The wheels may be 'solid' consisting of organic-bonded abrasive material throughout, 'steel centered' consisting of a steel disc with a rim of organic-bonded material moulded around the periphery, or of the 'inserte…

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- (b) runs in a trough strong enough to carry the weight of a broken chain, rope, belt or other material that falls from the conveyor. - 372 (2) A worker must use a walkway to cross over a conveyor belt if - (a) the conveyor belt is moving, or - (b) the conveyor belt is motionless but has not been locked out in accordance with Part 15. - 372 (3) A worker must not cross under a moving conveyor belt except at a walkway. ## Crossing conveyor belts 373 (1) A worker must cross over a conveyor belt using a bridge that is at least 1 metre wide and has adequate guardrails. 373 (2) Despite subsection (1), a worker may cross over a conveyor belt at a location other than a bridge if the belt is locked out. 373 (3) A worker must cross under a moving conveyor belt at a designated place where the worker is protected from moving parts of the conveyor and from material falling from the belt. ## Actuated fastening tools 374 A worker must not permit the trigger of an actuated fastening tool to be mechanically held in the 'ON' position unless the manufacturer's specifications permit the tool to be used that way. ## Grinders - 375 (1) An employer must ensure that - (a) a grinder is operated in accordance with the manufacturer's specifications and, subject to subsection (2), equipped with a grinder guard, - (b) the maximum safe operating speed of the grinder accessory in revolutions per minute is equal to or greater than the maximum speed of the grinder shaft in revolutions per minute, and - (c) if a hand held grinder is used, the object being ground cannot move. - 375 (2) An employer must ensure that the guard of a hand held grinder covers the area of the grinder accessory contained within an arc of at least 120 degrees of the accessory's circumference. 375 (3) An employer must ensure that if a tool rest is installed on a fixed grinder, the manufacturer's specifications are followed if they exist, or the tool rest is - (a) installed in a manner compatible with the work proces…

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Oregon Occupational Safety and Health Division - (1) The fluid used in hydraulic powered tools shall be fire-resistant fluids approved under Schedule 30 of the U.S. Bureau of Mines, Department of the Interior, and shall retain its operating characteristics at the most extreme temperatures to which it will be exposed. - (2) The manufacturer's safe operating pressures for hoses, valves, pipes, filters, and other fittings shall not be exceeded. - (e) Powder-actuated tools. - (1) Only employees who have been trained in the operation of the particular tool in use shall be allowed to operate a powder-actuated tool. - (2) The tool shall be tested each day before loading to see that safety devices are in proper working condition. The method of testing shall be in accordance with the manufacturer's recommended procedure. - (3) Any tool found not in proper working order, or that develops a defect during use, shall be immediately removed from service and not used until properly repaired. - (4) Personal protective equipment shall be in accordance with Subpart E of this part. - (5) Tools shall not be loaded until just prior to the intended firing time. Neither loaded nor empty tools are to be pointed at any employees. Hands shall be kept clear of the open barrel end. - (6) Loaded tools shall not be left unattended. - (7) Fasteners shall not be driven into very hard or brittle materials including, but not limited to, cast iron, glazed tile, surface-hardened steel, glass block, live rock, face brick, or hollow tile. - (8) Driving into materials easily penetrated shall be avoided unless such materials are backed by a substance that will prevent the pin or fastener from passing completely through and creating a flying missile hazard on the other side. - (9) No fastener shall be driven into a spalled area caused by an unsatisfactory fastening. - (10) Tools shall not be used in an explosive or flammable atmosphere. - (11) All tools shall be used with the correct shield, guard, or at…

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Oregon Occupational Safety and Health Division Oregon Administrative Rules 9BDivision 3 <!-- image --> Wherever the nature of the work requires contact with the wheel below the horizontal plane of the spindle, the exposure shall not exceed 125° (See Figure I - 9 and Figure I - 10.) <!-- image --> - (9) Cylindrical grinders. The maximum angular exposure of the grinding wheel periphery and sides for safety guards used on cylindrical grinding machines shall not exceed 180º. This exposure shall begin at a point not more than 65º above the horizontal plane of the wheel spindle. (See Figure I - 11 and Figure I - 12 and paragraph (b)(7) of this section.) - (c) Personal protective equipment. Employees using hand and power tools and exposed to the hazard of falling, flying, abrasive, and splashing objects, or exposed to harmful dusts, fumes, mists, vapors, or gases shall be provided with the particular personal protective equipment necessary to protect them from the hazard. All personal protective equipment shall meet the requirements and be maintained according to Subparts D and E of this part. - (d) Switches. <!-- image -->

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Division 3 AO 3-2019 Oregon Administrative Rules Oregon Occupational Safety and Health Division - (xvi) Swing-frame grinder . Any power-driven rotatable grinding, polishing, or buffing wheel mounted in such a manner that the wheel with its supporting framework can be manipulated over stationary objects. - (xvii) Velocity pressure (vp). The kinetic pressure in the direction of flow necessary to cause a fluid at rest to flow at a given velocity. It is usually expressed in inches of water gauge. - (xviii) Vertical spindle disc grinder . A grinding machine having a vertical, rotatable power-driven spindle carrying a horizontal abrasive disc wheel. - (2) Application. Wherever dry grinding, dry polishing or buffing is performed, and employee exposure, without regard to the use of respirators, exceeds the permissible exposure limits prescribed in 1926.55 or other pertinent sections of this part, a local exhaust ventilation system shall be provided and used to maintain employee exposures within the prescribed limits. - (3) Hood and branch pipe requirements. - (i) Hoods connected to exhaust systems shall be used, and such hoods shall be designed, located, and placed so that the dust or dirt particles shall fall or be projected into the hoods in the direction of the air flow. No wheels, discs, straps, or belts shall be operated in such manner and in such direction as to cause the dust and dirt particles to be thrown into the operator's breathing zone. - (ii) Grinding wheels on floor stands, pedestals, benches, and special-purpose grinding machines and abrasive cutting-off wheels shall have not less than the minimum exhaust volumes shown in Table D-57.1 with a recommended minimum duct velocity of 4,500 feet per minute in the branch and 3,500 feet per minute in the main. The entry losses from all hoods except the vertical-spindle disc grinder hood, shall equal 0.65 velocity pressure for a straight takeoff and 0.45 velocity pressure for a tapered takeoff. The entry loss for …