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OSHA Construction Safety Regulations - Subcomponent I

OSHA Health & Safety Construction-associated Regulations - I - 300 to 304

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Subcomponent I - Tools - Handand also Power

CFR# 1926.300 - General demands.

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(a) Condition of devices. All hand and also power devices and also comparable tools, whether furnimelted by the employer or the employee, shall be maintained in a safe condition.

(b) Guarding.

(b)(1) When power operated devices are designed to accommoday guards, they shall be equipped with such guards when in use.

(b)(2) Belts, gears, shafts, pulleys, sprockets, spindles, drums, fly wheels, chains, or other reciprocating, rotating or moving components of equipment shall be guarded if such components are exposed to call by employees or otherwise create a risk. Guarding shall meet the needs as set forth in Amerideserve to National Standards Institute, B15.1-1953 (R1958), Safety Code for Mechanical Power-Transmission Apparatus.

(b)(3) Types of guarding. One or even more techniques of machine guarding shall be provided to defend the operator and also various other employees in the machine area from hazards such as those developed by point of operation, ingoing nip points, rotating parts, flying chips and also sparks. Instances of guarding techniques are - obstacle guards, two-hand tripping devices, electronic safety and security devices, and so on.

(b)(4) Point of operation guarding.

(b)(4)(i) Point of procedure is the location on a machine wright here occupational is actually perdeveloped upon the product being processed.

(b)(4)(ii) The point of procedure of equipments whose operation exposes an employee to injury, shall be guarded. The guarding gadget shall be in conformity through any correct requirements therefor, or, in the absence of applicable certain criteria, shall be so designed and built regarding proccasion the operator from having actually any kind of part of his body in the hazard zone during the operating cycle.

(b)(4)(iii) Special handtools for placing and also rerelocating product shall be such as to permit basic taking care of of product without the operator placing a hand in the risk zone. Such tools shall not be in lieu of various other guarding required by this section, however have the right to only be used to supplement security gave.

(b)(4)(iv) The adhering to are some of the makers which usually require allude of procedure guarding:

(a) Guillotine cutters.

(b) Shears.

(c) Alligator shears.

(d) Powered presses.

(e) Milling equipments.

(f) Power saws.

(g) Jointers.

(h) Portable power devices.

(i) Forming rolls and calenders.

(b)(5) Expocertain of blades. When the perimeter of the knives of a fan is less than 7 feet (2.128 m) above the floor or working level, the chisels shall be guarded. The guard shall have actually openings no bigger than 1/2 inch (1.27 cm).

(b)(7) Guarding of abrasive wheel machinery - expocertain adjustment. Safety guards of the types described in paragraphs (b)(8) and also (9) of this area, wright here the operator stands in front of the opening, shall be constructed so that the peripheral protecting member deserve to be changed to the constantly decreasing diameter of the wheel. The maximum angular expocertain over the horizontal plane of the wheel spindle as mentioned in paragraphs (b)(8) and (9) of this section shall never be exceeded, and also the distance in between the wheel perimeter and also the adjusteady tongue or the end of the peripheral member at the height shall never before exceed 1/4 inch (0.635 cm). (See Figures I-1 through I-6.)

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Correct Showing adjusecure tongue providing compelled angle defense for all sizes of wheel used.

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Correct Showing movable guard with opening tiny enough to give required protection for the smallest dimension wheel supplied.

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Incorrect Showing movable guard through dimension of opening correct for full dimension wheel but also huge for smaller sized wheel.

(b)(8) Bench and floor stands. The angular expocertain of the grinding wheel perimeter and sides for safety guards used on makers known as bench and also floor stands have to not exceed 90 deg. or one-fourth of the perimeter. This expocertain shall start at a suggest not more than 65 deg. over the horizontal plane of the wheel spindle. (See Figures I-7 and I-8 and paragraph (b)(7) of this section.)

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Whenever before the nature of the job-related calls for call via the wheel below the horizontal aircraft of the spindle, the expocertain shall not exceed 125 deg. (See Figures I-9 and also I-10.)

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(b)(9) Cylindrical grinders. The maximum angular exposure of the grinding wheel periphery and sides for safety and security guards offered on cylindrical grinding machines shall not exceed 180 deg.. This exposure shall start at a suggest not even more than 65 deg. above the horizontal plane of the wheel spindle. (See Figures I-11 and also I-12 and paragraph (b)(7) of this section.)

(c) Personal protective devices. Employees utilizing hand also and also power tools and exposed to the risk of falling, flying, abrasive, and also splashing objects, or exposed to harmful dusts, fumes, mists, vapors, or gases shall be provided via the particular individual protective devices essential to defend them from the peril. All individual protective devices shall accomplish the needs and also be preserved according to Subparts D and E of this part.

(d) Switches.

(d)(1) All hand-organized powered platen sanders, grinders via wheels 2-inch diameter or much less, routers, planers, laminate trimmers, nibblers, shears, scroll saws, and jigsaws via blade shanks one-fourth of an inch wide or less may be equipped through only a positive "on-off" control.

(d)(2) All hand-held powered drills, tappers, fastener chauffeurs, horizontal, vertical, and also angle grinders via wheels higher than 2 inches in diameter, disc sanders, belt sanders, reciprocating saws, saber saws, and other equivalent operating powered devices shall be equipped through a temporary call "on-off" regulate and also might have a lock-on manage offered that turnoff deserve to be accomplished by a solitary motion of the very same finger or fingers that rotate it on.

(d)(3) All various other hand-organized powered tools, such as circular saws, chain saws, and also percussion tools without positive accessory holding means, shall be equipped via a constant push switch that will certainly shut off the power when the press is released.

(d)(4) The requirements of this paragraph shall become reliable on July 15, 1972.

(d)(5) Exception: This paragraph does not apply to concrete vibrators, concrete breakers, powered tampers, jack hammers, rock drills, and comparable hand operated power tools.

CFR# 1926.301 - Hand also tools.

(a) Employers shall not issue or permit the use of unsafe hand also devices.

(b) Wrenches, including adjustable, pipe, end, and socket wrenches shall not be provided when jaws are sprung to the suggest that slippage occurs.

(c) Impact devices, such as drift pins, wedges, and blades, shall be maintained complimentary of mushroomed heads.

(d) The wooden handles of devices shall be preserved complimentary of splinters or cracks and shall be retained tight in the tool.

CFR# 1926.302 - Power-operated hand tools.

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(a) Electric power-operated tools.

(a)(1) Electric power operated devices shall either be of the apshowed double-insulated kind or grounded in accordance through Subcomponent K of this component.

(a)(2) The usage of electrical cords for hoisting or lowering tools shall not be allowed.

(b) Pneumatic power devices.

(b)(1) Pneumatic power devices shall be secured to the hose or whip by some positive implies to proccasion the tool from ending up being accidentally dislinked.

(b)(2) Safety clips or retainers shall be secucount set up and maintained on pneumatic affect (percussion) devices to proccasion attachments from being accidentally expelled.

(b)(3) All pneumatically driven nailers, staplers, and also various other comparable equipment offered with automatic fastener feed, which operate at more than 100 p.s.i. push at the tool shall have a safety gadget on the muzzle to prevent the tool from ejecting fasteners, unless the muzzle is in contact with the work-related surchallenge.

(b)(4) Compressed air shall not be supplied for cleaning objectives except wbelow lessened to less than 30 p.s.i. and also then only via efficient chip guarding and individual protective tools which meets the needs of Subcomponent E of this component. The 30 p.s.i. necessity does not apply for concrete create, mill range and also equivalent cleaning objectives.

(b)(5) The manufacturer's safe operating push for hoses, pipes, valves, filters, and also various other fittings shall not be exceeded,

(b)(6) The use of hoses for hoisting or lowering devices shall not be allowed.

(b)(7) All hoses exceeding 1/2-inch inside diameter shall have actually a security gadget at the resource of supply or branch line to mitigate pressure in case of hose faiattract.

(b)(8) Airless spray firearms of the type which atomize paints and fluids at high pressures (1,000 pounds or even more per square inch) shall be equipped through automatic or visible hands-on security gadgets which will certainly prevent pulling of the cause to prevent release of the paint or fluid till the safety tool is manually released.

(b)(9) In lieu of the over, a diffuser nut which will prevent high push, high velocity release, while the nozzle pointer is rerelocated, plus a nozzle tip guard which will certainly proccasion the tip from coming right into call via the operator, or various other identical defense, shall be gave.

(b)(10) Abrasive blast cleaning nozzles. The blast cleaning nozzles shall be equipped through an operating valve which should be organized open manually. A support shall be offered on which the nozzle may be placed once it is not in usage.

(e) Powder-actuated devices.

(e)(1) Only employees that have actually been trained in the operation of the particular tool in usage shall be allowed to run a powder-actuated tool.

(e)(2) The tool shall be tested each day prior to loading to see that safety devices are in appropriate functioning condition. The approach of testing shall be in accordance via the manufacturer's recommended procedure.

(e)(3) Any tool uncovered not in appropriate functioning order, or that establishes a defect during usage, shall be immediately rerelocated from company and not used until properly repaired.

(e)(4) Personal protective devices shall be in accordance with Subcomponent E of this part.

(e)(5) Tools shall not be loaded till simply before the intended firing time. Neither loaded nor empty tools are to be pointed at any type of employees. Hands shall be kept clear of the open barrel end.

(e)(6) Loaded tools shall not be left unattfinished.

(e)(7) Fasteners shall not be thrust into extremely tough or brittle materials including, however not limited to, cast iron, glazed tile, surface-hardened steel, glass block, live rock, confront brick, or hollow tile.

(e)(8) Driving right 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 also developing a flying missile risk on the other side.

(e)(9) No fastener shall be thrust into a spalled area led to by an unsatismanufacturing facility fastening.

(e)(10) Tools shall not be supplied in an explosive or flammable environment.

(e)(11) All tools shall be supplied through the correct shield, guard, or attachment recommfinished by the manufacturer.

(e)(12) Powder-actuated tools offered by employees shall meet all other applicable needs of American National Standards Institute, A10.3-1970, Safety Requirements for Explosive-Actuated Fastening Tools.

CFR# 1926.304 - Woodworking tools.

(d) Guarding. All portable, power-moved circular saws shall be equipped via guards over and listed below the base plate or shoe. The top guard shall cover the experienced to the depth of the teeth, except for the minimum arc forced to permit the base to be tilted for bevel cuts. The reduced guard shall cover the experienced to the depth of the teeth, except for the minimum arc forced to allow proper retractivity and contact through the job-related. When the tool is withdrawn from the work, the lower guard shall automatically and instantly return to the covering place.

(e) Personal protective equipment. All personal protective equipment gave for usage shall condevelop to Subcomponent E of this component.

(f) Other demands. All woodfunctioning tools and machinery shall accomplish various other applicable demands of American National Standards Institute, 01.1-1961, Safety Code for Woodfunctioning Machinery.

(g) Radial saws.

(g)(1) The upper hood shall entirely enclose the top percent of the blade down to a suggest that will encompass the end of the saw arbor. The top hood shall be built in such a manner and also of such product that it will certainly defend the operator from flying splinters, broken experienced teeth, etc., and will certainly defect sawdust ameans from the operator. The sides of the lower exposed percent of the blade shall be guarded to the complete diameter of the blade by a device that will instantly adjust itself to the thickness of the stock and also remajor in contact through stock being reduced to offer maximum security possible for the procedure being percreated.

(h) Hand-fed crossreduced table saws.

(h)(1) Each circular crossreduced table saw shall be guarded by a hood which shall fulfill all the needs of paragraph (i)(1) of this section for hoods for circular ripsaws.

(i) Hand-fed ripsaws.

(i)(1) Each circular hand-fed ripwitnessed shall be guarded by a hood which shall completely enclose the percent of the witnessed above the table and also that portion of the observed over the material being cut. The hood and also mounting shall be arranged so that the hood will certainly automatically adjust itself to the thickness of and also remain in call through the product being reduced but it shall not offer any kind of significant resistance to insertion of product to saw or to passage of the product being sawed. The hood shall be made of adequate toughness to withstand blows and also strains incidental to reasonable operation, adjusting, and taking care of, and also shall be so designed as to protect the operator from flying splinters and damaged observed teeth. It shall be made of product that is soft enough so that it will be unmost likely cause tooth breakage. the hood shall be so installed as to incertain that its operation will be positive, trustworthy, and also in true alignment through the saw; and the mounting shall be enough in toughness to withstand any kind of reasonable side thrust or other pressure tfinishing to throw it out of line.