formatting. This valve shall be closed and locked in the off position while the hammer is being adjusted, repaired, or serviced, or when the dies are being changed. (2) All knives and cutting heads of woodworking machines shall be kept sharp, properly adjusted, and firmly secured. Pressing enter in the search box 1910.135 Head protection. The Part 1910 - OSHA General Industry regulations book is designed to assist you in meeting OSHA requirements. In addition when unthreaded hole wheels are specified the inside flat, K dimension, shall be large enough to accommodate a suitable flange. (ii) For installation certification/validation and annual recertification/revalidation has reviewed the employer's certification that the PSDI safety system meets the requirements of 1910.217 (a) through (h) and appendix A and the underlying tests performed by the employer, 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. Then rotate the wheel 45 and repeat the test. (7) Circular saw gages shall be so constructed as to slide in grooves or tracks that are accurately machined, to insure exact alignment with the saw for all positions of the guide. In the second stage, the OSHA-recognized third-party validation organization validates or revalidates that the PSDI safety system installation meets the requirements of 29 CFR 1910.217 (a) through (h) and this appendix A and the employer's certification, by reviewing that the PSDI safety system has been certified; the employer's certification, designs and tests, if any; the installation, operation, maintenance and training; and by performing any additional tests and reviews which the validation organization believes is necessary. will bring you to those results. Appendix B to Subpart I of Part 1910Nonmandatory Compliance Guidelines for Hazard Assessment and Personal Protective Equipment Selection above floor level. c. The test(s) specifications and procedures shall be made available upon request to the validation organization. (4) Type 11 flaring cup wheels mean wheels having double diameter dimensions D and J, and in addition have thickness, hole size, rim and back thickness dimensions. It is recommended that old installations be changed to conform to this rule. 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. 1910.151 Medical services and first aid. a. (d) The control systems shall be designed to require release of all operators' hand controls before an interrupted stroke can be resumed. Expanded metal, perforated or solid sheet metal, wire mesh on a frame of angle iron, or iron pipe securely fastened to floor or to frame of machine. (10) Sheaves mean grooved pulleys, and shall be so classified unless used as flywheels. screw conveyors and the periphery of an abrasive . Similarly, only presses with a configuration such that a person's body cannot completely enter the bed area are approved for PSDI. The mounting features shall conform with all requirements of this section. 14, 1988]. 1910.97 Nonionizing radiation. Design certification/validation for a new safety system, i.e., a new design or new integration of specifically identified components and subsystems, would entail a single certification/validation which would be applicable to all identical safety systems. (ix) A scale guard of substantial construction shall be provided at the back of every press, so arranged as to stop flying scale. Abrasive wheel machinery guards shall meet the design specifications of the American National Standard Safety Code for the Use, Care, and Protection of Abrasive Wheels, ANSI B7.1-1970, which is incorporated by reference as specified in 1910.6. Blocks or wedges shall be made of material the strength and construction of which should meet or exceed the specifications and dimensions shown in Table O-11. The front and back of the band wheels shall be either enclosed by solid material or by wire mesh or perforated metal. (5) Flywheels include flywheels, balance wheels, and flywheel pulleys mounted and revolving on crankshaft of engine or other shafting. 1910.125 Additional requirements for dipping and coating operations that use flammable liquids or liquids with flashpoints greater than 199.4 F (93 C). 1910.7 Definition and requirements for a nationally recognized testing laboratory. (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. A U type guard is permissible. (v) The PSDI mode of operation shall be used only for normal production operations. Title 29 was last amended 2/24/2023. B. Analytical methods may be used in lieu of, in combination with, or in support of tests to satisfy specification requirements. 1910.269 Electric power generation, transmission, and distribution. A safety trip control shall be provided in front and in back of each mill. b. 1910.1 Purpose and scope. (B) The safety distance shall be checked for compliance with (h)(9)(v) of this section. (ii) The inside diameter of the band shall not be more than 1 inch larger than the outside diameter of the wheel, and shall be mounted as nearly concentric with the wheel as practicable. This appendix prescribes mandatory requirements and procedures for OSHA recognition of third-party validation organizations to validate employer and manufacturer certifications that their equipment and practices meet the requirements of the PSDI standard. (ii) Where suspended counterweights are used and not guarded by location, they shall be so encased as to prevent accident. round belts one-half (12) inch or less in diameter; and. (i) Any press equipped with presence sensing devices for use in PSDI, or for supplemental safeguarding on presses used in the PSDI mode, shall be equipped with a test rod of diameter specified by the presence sensing device manufacturer to represent the minimum object sensitivity of the sensing field. The requirements for OSHA recognition of a third-party validation organization for the PSDI standard are that the program has fulfilled the requirements of section II of this appendix for qualifications and of section III of this appendix for program requirements, and the program has identified appropriate test and analysis methods to meet the requirements of the PSDI standard and appendix A. Tail rods or extension piston rods. Dimensions of such flanges shall never be less than indicated. Where guard is exposed to contact with moving equipment additional strength may be necessary. When a recognized validation organization has filed such a renewal request, its current recognition will not expire until a final decision has been made on the request. (1) Collars. (b) As used in 1910.215 unless the context clearly requires otherwise, the following abrasive wheel machinery terms shall have the meanings prescribed in this paragraph. The Office of the Federal Register publishes documents on behalf of Federal agencies but does not have any authority over their programs. (5) Excluded machines. (7) Machines using part revolution clutches. 1910.109 Explosives and blasting agents. Programmable controllers which meet the requirements for controls with internally stored programs stated above shall be permitted only if all logic elements affecting the safety system and point of operation safety are internally stored and protected in such a manner that they cannot be altered or manipulated by the user to an unsafe condition. (2) General requirements for machine guards. Comments or questions about document content can not be answered by OFR staff. (i) The control system on presses used in the PSDI mode shall meet the applicable requirements of paragraphs (b)(7), (b)(8), (b)(13), and (c)(5) of this section. (2) At the rear ends of frames over which feed conveyors run, sprockets and chains shall be guarded at the sides by plates projecting beyond the periphery of sprockets and the ends of lugs. (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. (2) Shutoff valve. (48) Safety block means a prop that, when inserted between the upper and lower dies or between the bolster plate and the face of the slide, prevents the slide from falling of its own deadweight. They shall be located in front of the saw and so arranged as to be in continual contact with the wood being fed. Control elements shall be checked for correct status after power on and before the initial PSDI stroke. A validation organization may not terminate its installation certification and recertification validation functions earlier than either one year from the date of the written notice, or the date on which another recognized validation organization is able to perform the validation of installation certification and recertification. The documentation shall include, but not be limited to, the following items: a. Such mesh or perforated metal shall be not less than 0.037 inch (U.S. Gage No. 1910.177 Servicing multi-piece and single piece rim wheels. (5) Ripping and ploughing shall be against the direction in which the saw turns. They are reinforced, organic bonded, offset hub type wheels, usually 16 inches diameter and larger, specially designed for use on cutting-off machines where mounting nut or outer flange interference cannot be tolerated. (31) Foot pedal means the foot operated lever designed to operate the mechanical linkage that trips a full revolution clutch. Tm = Increase in the press stopping time at the top of the stroke, in seconds, allowed by the brake monitor for brake wear. (ii) Under the directed component of the inspection program, the employer shall: (A) Inspect and test each press on a regular basis at least once a week to determine the condition of the clutch/brake mechanism, antirepeat feature, and single-stroke mechanism; (B) Perform and complete necessary maintenance or repair, or both, on the clutch/brake mechanism, antirepeat feature, and single-stroke mechanism before operating the press; and. The materials and dimensions specified in this paragraph shall apply to all guards, except horizontal overhead belts, rope, cable, or chain guards more than seven (7) feet above floor, or platform. [39 FR 23502, June 27, 1974, as amended at 39 FR 41846, Dec. 3, 1974; 40 FR 3982, Jan. 27, 1975; 43 FR 49750, Oct. 24, 1978; 45 FR 8594, Feb. 8, 1980; 49 FR 18295, Apr. This responsibility includes: (i) Establishing periodic and regular maintenance safety checks and keeping certification records of these inspections which include the date of inspection, the signature of the person who performed the inspection and the serial number, or other identifier, for the forging machine which was inspected. 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. The adjustment shall be done under the supervision of an authorized person whose qualifications include knowledge of safety distance requirements and experience with the brake system and its adjustment.