(3) Vibration of 45G for one millisecond per stroke when the item is to be mounted on the press frame. (A) The manufacturer's recommended test procedures for checking operation of the presence sensing device. f. The instrument used to measure reaction time shall be calibrated to be accurate to within 0.001 second. The regular oilers shall wear tight-fitting clothing. A slide is also called a ram, plunger, or platen. (h) Keys, setscrews, and other projections. 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. (3) Sprockets and chains. Certification/validation by similarity analysis reports should identify, in addition to the above, application of the part, component or subsystem for which certification/validation is being sought as well as data from previous usage establishing adequacy of the item. The certifications are made to the validation organization.
OSHA Safety Training PowerPoints - EHS Safety News America Pulleys with cracks, or pieces broken out of rims, shall not be used. This table technically only applies to mechanical power presses operated within OSHA's jurisdiction, although some industry consensus standards also reference this table, such as ANSI B65.1 . (ix) Barriers shall be fixed to the press frame or bolster to prevent personnel from passing completely through the sensing field, where safety distance or press configuration is such that personnel could pass through the PSDI presence sensing field and assume a position where the point of operation could be accessed without detection by the PSDI presence sensing device. 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. Posts shall be not more than eight (8) feet apart; they are to be permanent and substantial, smooth, and free from protruding nails, bolts, and splinters. (2) Lockouts. Workplace Violence. (ii) The requirement of paragraph (c)(1)(i) of this section shall not apply when the point of operation opening is one-fourth inch or less. The validation organization representative shall witness at least one set of tests. Amendments and withdrawals. Tr = Longest response time, in seconds, of all interposing control elements between the presence sensing device and the clutch/brake operating mechanism(s). The analysis reports should identify: (1) The basis for the analysis; (2) the hardware or software items analyzed; (3) conclusions; (4) safety factors; and (5) limit of the analysis. This requirement pertains only to those single-stroke, two-hand controls manufactured and installed on or after August 31, 1971. Appendix B to Subpart T of Part 1910Guidelines for Scientific Diving All revolving collars, including split collars, shall be cylindrical, and screws or bolts used in collars shall not project beyond the largest periphery of the collar. Table O-8 - Minimum Dimensions for Straight Flanges Used as Wheel Sleeves for Precision Grinding Only. (c) Presses. Appendix C to Subpart T of Part 1910Alternative Conditions Under 1910.401(a)(3) for Recreational Diving Instructors and Diving Guides (Mandatory). (24) Ejector means a mechanism for removing work or material from between the dies. (7) Driving flange.
Conveyor Safety | OSHA Safety Manuals 1910.25 Stairways. 2. (vi) For thread grinding wheels not exceeding 1 inch in thickness cast iron or malleable iron safety guards as specified in Figures O-36 and O-37, and in Table O-9 shall be used. 1910.334 Use of equipment. Pulleys intended to operate at rim speed in excess of manufacturers normal recommendations shall be specially designed and carefully balanced for the speed at which they are to operate. (1) Machine guarding. Examples: board hammers and air-lift hammers. (7) Direct drive means the type of driving arrangement wherein no clutch is used; coupling and decoupling of the driving torque is accomplished by energization and deenergization of a motor. (vi) Type of feeding (manual with hands in dies or with hands out of dies, semiautomatic, automatic, or other). (14) Abrasive wheel means a cutting tool consisting of abrasive grains held together by organic or inorganic bonds. Integrated test of the press fully equipped to operate in the PSDI mode shall be conducted to establish the total system reaction time. The removal of a hand from any control button shall cause the slide to stop.
Guardrail shall be forty-two (42) inches in height, with midrail between top rail and floor. (C) The operation, function and performance of the PSDI mode. Pulleys intended to operate at rim speed in excess of manufacturers normal recommendations shall be specially designed and carefully balanced for the speed at which they are to operate. (4) Clutch means the coupling mechanism used on a mechanical power press to couple the flywheel to the crankshaft, either directly or through a gear train. (xv) Selection of bar operation shall be by means capable of being supervised by the employer. Where tools are used for feeding, removal of scrap, lubrication of parts, or removal of parts that stick on the die in PSDI operations: (A) The minimum diameter of the tool handle extension shall be greater than the minimum object sensitivity of the presence sensing device(s) used to initiate press strokes; or. (3) Manually operated controls. The interior surface of all guards, by which is meant the surface of the guard with which a belt will come in contact, shall be smooth and free from all projections of any character, except where construction demands it; protruding shallow roundhead rivets may be used. (e) As used in 1910.218, unless the context clearly requires otherwise, the following forging and hot metal terms shall have the meaning prescribed in this paragraph. This should enhance the reliability of the device and ensure that it remains operable. (13) Revolving double arbor saws shall be fully guarded in accordance with all the requirements for circular crosscut saws or with all the requirements for circular ripsaws, according to the kind of saws mounted on the arbors. (iii) Special handtools for placing and removing material shall be such as to permit easy handling of material without the operator placing a hand in the danger zone. Wheels should be tapped gently with a light nonmetallic implement, such as the handle of a screwdriver for light wheels, or a wooden mallet for heavier wheels. (ii) (A) PSDI shall be implemented only by use of light curtain (photo-electric) presence sensing devices which meet the requirements of paragraph (c)(3)(iii)(c) of this section unless the requirements of the following paragraph have been met. (iii) Types 16, 17, 18, 18R, and 19 cones, plugs, and threaded hole pot balls where the work offers protection. The safety factor and/or derated percentage shall be specifically noted and complied with. The manufacturer or the manufacturer's representative shall certify to and submit to an OSHA-recognized third-party validation organization the documentation necessary to demonstrate that the PSDI safety system design is in full compliance with the requirements of 29 CFR 1910.217(a)-(h) and this appendix A, as applicable, by means of analysis, tests, or combination of both, establishing that the following additional certification/validation requirements are fulfilled. Wall thickness at the back is normally greater than at the grinding face (W). The safety system shall have the ability to sustain a single failure or a single operating error and not cause injury to personnel from point of operation hazards. (3) Block means a short block of wood, provided with a handle similar to that of a plane and a shoulder at the rear end, which is used for pushing short stock over revolving cutters.
Guarding Floors, Stairs, & Other Openings - Safety Checklist Program As an alternative, supplemental presence sensing devices used only in the safeguard mode may be provided. 1. 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.). It shall be the responsibility of the employer to insure the original and continuing competence of personnel caring for, inspecting, and maintaining power presses. (ii) In powerplants or power-development rooms, a guardrail may be used in lieu of the guard required by subdivision (i) of this subparagraph. View the most recent official publication: These links go to the official, published CFR, which is updated annually. 1910.211 Definitions. If, after review of the application, additional information, and inspection report, the applicant does not appear to have met the requirements for recognition, the Director of the PSDI certification/validation program shall notify the applicant in writing, listing the specific requirements of this appendix which the applicant has not met, and the reasons. 12. Type 1 wheels shall be mounted between flanges. (2) Vertical and inclined belts (paragraphs (e) (3) and (4) of this section) if not more than two and one-half (212) inches wide and running at a speed of less than one thousand (1,000) feet per minute, and if free from metal lacings or fastenings may be guarded with a nip-point belt and pulley guard. A slot opening for jack bar will be permitted. (i) Limitations: Special supporting, back adapter and inside flange nuts are required for the proper mounting of these types of wheels subject to limitations of 1910.215(c)(4) (i) and (ii). By a standard guard as described in paragraph (o) of this section, at least seven (7) feet high extending six (6) inches above the mesh point of the gears; or. They shall be designed to provide adequate holding power for all the thicknesses of materials being cut. The minimum guarding line is the distance between the infeed side of the guard and the danger line which is one-half inch from the danger line. (b) Guarding of abrasive wheel machinery -. Each time the systems hardware is significantly changed, modified, or refurbished; b. 1910.105 Nitrous oxide.