Showing movable guard with size of opening correct for full size wheel but too large for smaller wheels. 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. tensile strength 20,000 p.s.i.) 653, 655, 657; Secretary of Labor's Order No. (c) Presses. (iii) The employer shall provide die stops or other means to prevent losing control of the die while setting or removing dies in presses which are inclined. 29 U.S.C. Pulley speeds. (iv) Air piping shall conform to the specifications of the ANSI B31.1.0-1967, Power Piping with Addenda issued before April 28, 1971, which is incorporated by reference as specified in 1910.6. Any press whose safety system has not been recertified and revalidated within the preceding 12 months shall be removed from service in the PSDI mode until the safety system is recertified and revalidated. The initiation of continuous run shall require a prior action or decision by the operator in addition to the selection of Continuous on the stroking selector, before actuation of the operating means will result in continuous stroking. (1) Each machine shall be so constructed as to be free from sensible vibration when the largest size tool is mounted and run idle at full speed. (2) Boring bits should be provided with a guard that will enclose all portions of the bit and chuck above the material being worked. (xiv) The clutch/brake control shall automatically deactivate in event of failure of the counterbalance(s) air supply. Adjustments shall be made only by authorized personnel whose qualifications include a knowledge of the provisions of Table O-10 and this subparagraph. 1. (2) Veneer clippers shall have automatic feed or shall be provided with a guard which will make it impossible to place a finger or fingers under the knife while feeding or removing the stock. (i) Limitation: Cutting off wheels are recommended only for use on specially designed and fully guarded machines and are subject to the following maximum thickness and hole size limitations. This requirement shall not apply to natural sandstone wheels or metal, wooden, cloth, or paper discs, having a layer of abrasive on the surface. (See Figures O-6 and O-7 and paragraph (b)(9) of this section. (ii) The vertical clearance in passageways between the floor and power transmission beams, ceiling, or any other objects, is not less than five feet six inches (5 ft. 6 in.). The validating laboratory, if a separate organization from the validation organization, shall assign technical responsibility for the validation of PSDI certification to a Technical Director. (4) Reconstruction and modification. Machinery shall be oiled when not in motion, wherever possible. 1910.422 Procedures during dive. Structural steel (min. If a stairway accesses the catwalk, the width requirements depend on the width of the stairway that serves it. The upper rail shall be two by four (2 x 4) inches, or two one by four (1 x 4) strips, one at the top and one at the side of posts. (s) Inspection and maintenance of woodworking machinery. (ii) Brake systems on presses used in the PSDI mode shall have sufficient torque so that each average value of stopping times (Ts) for stops initiated at approximately 45 degrees, 60 degrees, and 90 degrees, respectively, of crankshaft angular position, shall not be more than 125 percent of the average value of the stopping time at the top crankshaft position. The integrated test specifications and procedures shall be made available to the validation organization. 1. Where more than one interruption of the light sensing field is used in the initiation of a stroke, either the mode selection means must have one position for each function, or a separate selection means shall be provided which becomes operable when the PSDI mode is selected. The requirements of this paragraph are also applicable to sliding cutoff saws mounted above the table. (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. (c) As used in 1910.216, unless the context clearly requires otherwise, the following mills and calenders in the rubber and plastic industries terms shall have the meanings prescribed in this paragraph. If made of wood, the posts shall be two by four (2 4) inches or larger. Compliance with 1910.217(h)(9)(iv). (iii) Paragraph (e)(1)(ii) of this section does not apply to presses that comply with paragraphs (b)(13) and (14) of this section. Steam hammers shall be provided with a quick closing emergency valve in the admission pipeline at a convenient location. Paragraph (f)(1) of this section does not apply to hand-operated gears used only to adjust machine parts and which do not continue to move after hand power is removed. 1910.147 The control of hazardous energy (lockout/tagout). 1910.155 Scope, application and definitions applicable to this subpart. (4) Belt fasteners. It is financially capable to conduct the work; b. The cables shall not be more than 72 inches above the level on which the operator stands. The validation organization representative shall witness at least one set of each of these tests. 7, 1996; 69 FR 31882, June 8, 2004; 76 FR 80739, Dec. 27, 2011; 77 FR 46949, Aug. 7, 2012; 78 FR 69550, Nov. 20, 2013]. The validating organization may utilize the competence, experience, and capability of its employees to demonstrate this competence, experience and capability. (c) A separate pull-out device shall be provided for each operator if more than one operator is used on a press. This contact form is only for website help or website suggestions. Integrated test of the press fully equipped to operate in the PSDI mode shall be conducted to establish the total system reaction time. 4. (ii) Safety triprod. (3) Scrap handling. (iii) If the cone is located less than 3 feet from the floor or working platform, the cone pulley and belt shall be guarded to a height of 3 feet regardless of whether the belt is endless or laced with rawhide. (iv) Mechanical power presses with a configuration which would allow a person to enter, pass through, and become clear of the sensing field into the hazardous portion of the press shall not be used in the PSDI mode of operation. (1) All projecting keys, setscrews, and other projections in revolving parts shall be removed or made flush or guarded by metal cover. (1) Keys. This does not apply to constant pressure controls used only for setup purposes. 1910.1008 bis-Chloromethyl ether. A correlation of the brake and/or clutch degradation based on the above tests and/or estimates shall be made and documented. However, the guarding of these gears is highly recommended. 1910.158 Standpipe and hose systems. 1910.156 Fire brigades. Hand feeding tools are intended for placing and removing materials in and from the press. (i) It shall be the responsibility of the employer to provide and insure the usage of point of operation guards or properly applied and adjusted point of operation devices on every operation performed on a mechanical power press. (6) Part revolution clutch means a type of clutch that can be disengaged at any point before the crankshaft has completed a full revolution and the press slide a full stroke. They move large amounts of materials quickly and safely. (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. (i) Cutting-off wheels, Types 1 and 27A (see paragraphs (c)(1) (ii) and (iii) of this section). Requirements for recognition. They shall operate readily when pushed or pulled. The documentation shall include, but not be limited to, the following items: a. (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. Conveyor Safety When used incorrectly, they can be dangerous. (2) The report shall include the following information: (i) Employer's name, address and location of the workplace (establishment). (4) Exposed to contact means that the location of an object is such that a person is likely to come into contact with it and be injured. 1910.132 General requirements. How someone is dressed loose clothing, long hair, and jewelry when working on or around conveyors can present the risk of conveyor entanglement. (27) Automatic feeding means feeding wherein the material or part being processed is placed within or removed from the point of operation by a method or means not requiring action by an operator on each stroke of the press. All pressure vessels used in conjunction with power presses shall conform to the American Society of Mechanical Engineers Code for Pressure Vessels, 1968 Edition, which is incorporated by reference as specified in 1910.6. When more than one wheel is mounted between a single set of flanges, wheels may be cemented together or separated by specially designed spacers. Employers and manufacturers are encouraged to recommend other approaches if there is a potential for improving safety and reducing cost. (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. (64) Certification or certify means, in the case of design certification/validation, that the manufacturer has reviewed and tested the design and manufacture, and in the case of installation certification/validation and annual recertification/revalidation, that the employer has reviewed and tested the installation, and concludes in both cases that the requirements of 1910.217 (a) through (h) and appendix A have been met. When frequent oiling must be done, openings with hinged or sliding self-closing covers shall be provided. The test specification and procedure shall be submitted to the validation organization for review and validation prior to the test. (58) Unitized tooling means a type of die in which the upper and lower members are incorporated into a selfcontained unit so arranged as to hold the die members in alignment. 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. (13) Gate or movable barrier device means a movable barrier arranged to enclose the point of operation before the press stroke can be started. Cast iron (min. Displaying title 29, up to date as of 3/02/2023. If made of pipe, the post shall be one and one-fourth (114) inches inside diameter, or larger. a. (ii) The point of operation of machines whose operation exposes an employee to injury, shall be guarded. Limitation: Minimum back thickness, E dimension, should not be less than one-fourth T dimension. FAR). In all other industries, wood guards shall not be used. Where guard is exposed to contact with moving equipment, additional strength may be necessary.