(i) The pedal mechanism shall be protected to prevent unintended operation from falling or moving objects or by accidental stepping onto the pedal. Overhead rope drive and block and roller-chain-drive guards shall be not less than six (6) inches wider than the drive on each side. Lubrication. Choosing an item from A slide is also called a ram, plunger, or platen. The employer shall establish and follow an inspection program having a general component and a directed component. The spindle speed of the machine shall be checked before mounting of the wheel to be certain that it does not exceed the maximum operating speed marked on the wheel. round belts one-half (12) inch or less in diameter; and. The maximum angular exposure of the grinding wheel periphery and sides for safety guards used on cutting-off machines and on surface grinding machines which employ the wheel periphery shall not exceed 150. Note: These flanges may be clamped together by means of a central nut, or by a series of bolts or some other equivalent means of fastening. An acceptable method for interlocking supplemental guards as required by paragraph (h)(6)(xiii) would be to incorporate the supplemental guard and the PSDI presence sensing device into a hinged arrangement in which the alignment of the presence sensing device serves, in effect, as the interlock. 1. 1910.1030 Bloodborne pathogens. (iv) A PSDI set-up/reset means shall be provided which requires an overt action by the operator, in addition to PSDI mode selection, before operation of the press by means of PSDI can be started. 2. 1910.1005 [Reserved] (9) Repairs and maintenance. The guard shall be constructed of heavy material, preferably metal, and the edge of the guard shall come to within three-eighths inch of the plane formed by the inside face of the feed roll in contact with the stock being cut. This portion of the guard shall be self-adjusting to raise and lower with the guide. (2) Where an exhaust system is used, the guards shall form part or all of the exhaust hood and shall be constructed of metal of a thickness not less than that specified in paragraph (h)(1) of this section. Learn more about the eCFR, its status, and the editorial process. If the safeguard is not described in this section, give a complete description. It is not an official legal edition of the CFR. (3) The top of the cutting chain and driving mechanism shall be enclosed. (7) High-energy-rate forging machines mean a class of forging equipment wherein high ram velocities resulting from the sudden release of a compressed gas against a free piston impart impact to the workpiece. (b) Anchoring fixed machinery. Conveyor power transmission equipment shall be guarded in accordance with ANSI B20.1-1957, Safety Code for Conveyors, Cableways, and Related Equipment, which is incorporated by reference as specified in 1910.6. (62) Safety system means the integrated total system, including the pertinent elements of the press, the controls, the safeguarding and any required supplemental safeguarding, and their interfaces with the operator, and the environment, designed, constructed and arranged to operate together as a unit, such that a single failure or single operating error will not cause injury to personnel due to point of operation hazards. It shall be the responsibility of the employer to maintain all forge shop equipment in a condition which will insure continued safe operation. 1910.19 Special provisions for air contaminants. 3. (12) Presence sensing device means a device designed, constructed and arranged to create a sensing field or area that signals the clutch/brake control to deactivate the clutch and activate the brake of the press when any part of the operator's body or a hand tool is within such field or area. Similarly, only presses with a configuration such that a person's body cannot completely enter the bed area are approved for PSDI. Showing movable guard with size of opening correct for full size wheel but too large for smaller wheels. (i) A main power disconnect switch capable of being locked only in the Off position shall be provided with every power press control system. (3) For combination or universal woodworking machines each point of operation of any tool shall be guarded as required for such a tool in a separate machine. 14, 1988]. The maximum angular exposure above the horizontal plane of the wheel spindle as specified in paragraphs (b) (3) and (4) of this section shall never be exceeded, and the distance between the wheel periphery and the adjustable tongue or the end of the peripheral member at the top shall never exceed one-fourth inch. 1910.132 General requirements. 2. 1910.1010 Benzidine. Where both runs of horizontal belts are seven (7) feet or less from the floor level, the guard shall extend to at least fifteen (15) inches above the belt or to a standard height except that where both runs of a horizontal belt are 42 inches or less from the floor, the belt shall be fully enclosed in accordance with paragraphs (m) and (o) of this section. (i) Blotters (compressible washers) shall always be used between flanges and abrasive wheel surfaces to insure uniform distribution of flange pressure. Conveyors are safe when used correctly, but they can be dangerous, and even deadly, if workers fail to follow safety procedures when working on or around them. 1910.1004 alpha-Naphthylamine. 1910.22 General requirements. The upper-wheel guard shall be made to conform to the travel of the saw on the wheel. (2) Calenders. (i) Guards for horizontal overhead belts shall run the entire length of the belt and follow the line of the pulley to the ceiling or be carried to the nearest wall, thus enclosing the belt effectively. If made of metal shapes or bars, their section shall be equal in strength to that of one and one-half (112) by one and one-half (112) by three-sixteenths (316) inch angle iron. (1) General requirements. (i) Wood guards may be used in the woodworking and chemical industries, in industries where the presence of fumes or where manufacturing conditions would cause the rapid deterioration of metal guards; also in construction work and in locations outdoors where extreme cold or extreme heat make metal guards and railings undesirable. The dates of the period of recognition will be stated in the recognition letter. When dies are being changed or maintenance is being performed on the press, the following shall be accomplished: (i) The power to the press shall be locked out. (49) Single stroke means one complete stroke of the slide, usually initiated from a full open (or up) position, followed by closing (or down), and then a return to the full open position. It shall be ascertained that the springs have not been broken and that they are functioning properly. If you need more than just a PowerPoint, be sure to hop over to . (i) Mechanical power presses used in the PSDI mode shall be operated under the control of a safety system which, in addition to meeting the applicable requirements of paragraphs (b)(13) and (c)(5) and other applicable provisions of this section, shall function such that a single failure or single operating error shall not cause injury to personnel from point of operation hazards. All points not readily accessible shall have oil feed tubes if lubricant is to be added while machinery is in motion. Appendix C to Subpart T of Part 1910Alternative Conditions Under 1910.401(a)(3) for Recreational Diving Instructors and Diving Guides (Mandatory). General. A minimum object sensitivity of one and one-fourth inches (31.75 mm) means that a one and one-fourth inch (31.75 mm) diameter object will be continuously detected at all locations in the sensing field. How someone is dressed loose clothing, long hair, and jewelry when working on or around conveyors can present the risk of conveyor entanglement. Natural sandstone wheels and metal, wooden, cloth, or paper discs, having a layer of abrasive on the surface are not covered by this section. 1910.38 Emergency action plans. (viii) A scale guard of substantial construction shall be provided at the back of every hammer, so arranged as to stop flying scale. Where belts are so located as to make it impracticable to carry the guard to wall or ceiling, construction of guard shall be such as to enclose completely the top and bottom runs of belt and the face of pulleys. (v) A covered container shall be provided to store dross skimmings. (6) Emphasis is placed upon the importance of maintaining cleanliness around woodworking machinery, particularly as regards the effective functioning of guards and the prevention of fire hazards in switch enclosures, bearings, and motors. "Safety Standard for Conveyors and Related Equipment" was the ANSI standard in effect at the time the 1910 Standards were promulgated. They shall be located in front of the saw and so arranged as to be in continual contact with the wood being fed. 1910.165 Employee alarm systems. The employer shall certify that the PSDI safety system has been design certified and validated, that the installation meets the operational and environmental requirements specified by the manufacturer, that the installation drawings are accurate, and that the installation meets the requirements of 29 CFR 1910.217 (a) through (h) and this appendix A. Fixing of selection shall be by means capable of supervision by the employer. This does not apply to constant pressure controls used only for setup purposes. Agree to terms and conditions established by OSHA in the grant of recognition on matters such as exchange of data, submission of accident reports, and assistance in studies for improving PSDI or the certification/validation process. (3) Belt perches. A hearing will be granted to an objecting member of the public if evidence of failure to meet the requirements of this appendix is supplied to OSHA. (7) Environmental requirements. (3) Feed rolls shall be guarded by a hood or suitable guard to prevent the hands of the operator from coming in contact with the in-running rolls at any point. Overhead belt guards shall be at least one-quarter wider than belt which they protect, except that this clearance need not in any case exceed six (6) inches on each side. Table O-6 - Minimum Dimensions for Straight Relieved Flanges1. (i) Each continuous line of shafting shall be secured in position against excessive endwise movement. Dp = Penetration depth factor, required to provide for possible penetration through the presence sensing field by fingers or hand before detection occurs. It shall be the responsibility of any person reconstructing, or modifying a mechanical power press to do so in accordance with paragraph (b) of this section. Guards. 12. Acceptance and field inspection. (ii) If the belt is of the endless type or laced with rawhide laces, and a belt shifter is not desired, the belt will be considered guarded if the nip point of the belt and pulley is protected by a nip point guard located in front of the cone extending at least to the top of the largest step of the cone, and formed to show the contour of the cone in order to give the nip point of the belt and pulley the maximum protection. 1910.163 Fixed extinguishing systems, water spray and foam. 49 CFR 172.101 (i) Projecting shaft ends shall present a smooth edge and end and shall not project more than one-half the diameter of the shaft unless guarded by nonrotating caps or safety sleeves. Cast iron (min. The validation organization shall have a reasonable written procedure for acknowledging and processing appeals or complaints from program participants (manufacturers, producers, suppliers, vendors and employers) as well as other interested parties (employees or their representatives, safety personnel, government agencies, etc. Appendix B to Subpart T of Part 1910Guidelines for Scientific Diving (xiv) The clutch/brake control shall automatically deactivate in event of failure of the counterbalance(s) air supply. Type 1 wheels shall be mounted between flanges. On both sides of the calender and near each end of the face of the roll, there shall be a cable or wire center cord connected to the safety trip. (ii) If the single-stroke mechanism is dependent upon spring action, the spring(s) shall be of the compression type, operating on a rod or guided within a hole or tube, and designed to prevent interleaving of the spring coils in event of breakage. If made of wood, the posts shall be two by four (2 x 4) inches or larger. 1. (j) Bearings and facilities for oiling. (iv) Overhead chain and link belt drives are governed by the same rules as overhead horizontal belts and shall be guarded in the same manner as belts. If used, these devices shall be located so as to detect all operator locations and positions not detected by the PSDI sensing field, and shall prevent stroking or stop a stroke in process when any supplemental sensing field(s) are interrupted. Its hood shall be so designed that it will automatically cover the lower portion of the blade, so that when the saw is returned to the back of the table the hood will rise on top of the fence, and when the saw is moved forward the hood will drop on top of and remain in contact with the table or material being cut. 1910.1009 beta-Naphthylamine. (1) The upper hood shall completely enclose the upper portion of the blade down to a point that will include the end of the saw arbor. (18) Die means the tooling used in a press for cutting or forming material. (ii) Inspection shall be made of belts, lacings, and fasteners and such equipment kept in good repair. The Assistant Secretary, or a special designee for this purpose, will make a preliminary decision whether the applicant has met the requirements for recognition based on the completed application file and the written staff recommendation, as well as the statement of reasons by the applicant if there is a recommendation of disapproval. Unless a 6-foot 6-inch headroom clearance is provided, employees shall not be permitted to pass under conveyors. (iii) Where the upper and lower runs of horizontal belts are so located that passage of persons between them would be possible, the passage shall be either: (a) Completely barred by a guardrail or other barrier in accordance with paragraphs (m) and (o) of this section; or. 1910.252 General requirements. Shafting shall be kept in alignment, free from rust and excess oil or grease. (2) Hand-operated gears. (65) Validation or validate means for PSDI safety systems that an OSHA recognized third-party validation organization: (i) For design certification/validation has reviewed the manufacturer's certification that the PSDI safety system meets the requirements of 1910.217 (a) through (h) and appendix A and the underlying tests and analyses performed by the manufacturer, has performed additional tests and analyses which may be required by 1910.217 (a) through (h) and appendix A, and concludes that the requirements of 1910.217 (a) through (h) and appendix A have been met; and. The employer shall insure by adequate supervision that correct operating procedures are being followed. (ii) The point of operation of machines whose operation exposes an employee to injury, shall be guarded. 1910.1050 Methylenedianiline. All measurements on mills and calenders shall be taken with the rolls running empty at maximum operating speed. Machine components shall be designed, secured, or covered to minimize hazards caused by breakage, or loosening and falling or release of mechanical energy (i.e. (3) Feed rolls of band resaws shall be protected with a suitable guard to prevent the hands of the operator from coming in contact with the in-running rolls at any point. (B) Counterbalances shall be adjusted in accordance with the press manufacturer's recommendations to assure correct counterbalancing of the slide attachment (upper die) weight for all operations performed on presses used in the PSDI mode. The adaptor nut which is less than the minimum one-third diameter of wheel fits in the depressed side of wheel to prevent interference in side grinding and serves to drive the wheel by its clamping force against the depressed portion of the back flange. OSHA Basics: OSHA's Parts 1910 and 1926 ; OSHA Basics: How OSHA Standards are Named and Numbered; OSHA Basics: Incorporation by Reference (IBR) OSHA Basics: The OSHA Field Operations Manual; OSHA Basics: OSHA's Small Business Handbook ; OSHA Basics: The General Duty Clause-5. (xvi) The control system shall permit only a single stroke per initiation command. If the frame of the belt shifter does not adequately guard the nip point of the belt and pulley, the nip point shall be further protected by means of a vertical guard placed in front of the pulley and extending at least to the top of the largest step of the cone. 1910.101 Compressed gases (general requirements). Control components shall be selected, constructed, and connected together in such a way as to withstand expected operational and environmental stresses, at least including those outlined in appendix A. (ii) Unused keyways shall be filled up or covered. All sprocket wheels and chains shall be enclosed unless they are more than seven (7) feet above the floor or platform. The midrail may be one by four (1 x 4) inches or more. 29 CFR 1910 Subpart O - Machinery and Machine Guarding - 1910.212 General Requirements for All Machines 29 CFR 1926 Subpart N - Helicopters, Hoists, Elevators, and Conveyors - 1926.555 Conveyors U.S. Occupational Safety and Health Administration Publication, "Safeguarding Equipment and Protecting Employees from Amputations", OSHA 3170-02R, 2007 Where explosives, explosive dusts, flammable vapors or flammable liquids exist, the hazard of static sparks from shafting shall be carefully considered. (4) Openings for oiling. 3. The regular oilers shall wear tight-fitting clothing. ), (9) Exposure adjustment. It shall be accessible and shall operate readily on contact. Mounts which are affixed to the wheel by the manufacturer shall not be reused. 1910.1011 4-Aminodiphenyl. (iv) For cutting-off wheels 16 inches diameter and smaller and where speed does not exceed 16,000 surface feet per minute, cast iron or malleable iron safety guards as specified in Figures O-36 and O-37, and in Table O-9 shall be used.
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