The validation organization shall demonstrate competence and experience in either power press design, manufacture or use, or testing, quality control or certification/validation of equipment comparable to power presses and associated control systems. If the preliminary decision is in favor of recognition, a member of the public, or if the preliminary decision is against recognition, the applicant may request a public hearing by the close of the comment period, if it supplies detailed reasons and evidence challenging the basis of the Assistant Secretary's preliminary decision and justifying the need for a public hearing to bring out evidence which could not be effectively supplied through written submissions. (1) Mills. (iii) The ram shall be blocked with a material the strength of which shall meet or exceed the specifications or dimensions shown in Table O-11. The press manufacturer's recommendations shall be followed. (3) Belt perches. Higher voltages that may be necessary for operation of machine or control mechanisms shall be isolated from any control mechanism handled by the operator, but motor starters with integral Start-Stop buttons may utilize line voltage control. The application shall identify the scope of the validation activity for which the applicant wishes to be recognized, based on one of the following alternatives: (1) Design Certification/Validation, Installation Certification/Validation, and Annual Recertification/Revalidation; (2) Design Certification/Validation only; or. The application shall be filed with: PSDI Certification/Validation Program, Office of Variance Determination, Occupational Safety and Health Administration, U.S. Department of Labor, Room N3653, 200 Constitution Avenue, NW., Washington, DC 20210. (2) Engine rooms. 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. Surface Feet per minute .262 12 1,000 = 3,144 s.f.p.m. Grade V60-30. (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. Flywheels located so that any part is seven (7) feet or less above floor or platform shall be guarded in accordance with the requirements of this subparagraph: (i) With an enclosure of sheet, perforated, or expanded metal, or woven wire; (ii) With guard rails placed not less than fifteen (15) inches nor more than twenty (20) inches from rim. (11) The frames and all exposed, noncurrent-carrying metal parts of portable electric woodworking machinery operated at more than 90 volts to ground shall be grounded and other portable motors driving electric tools which are held in the hand while being operated shall be grounded if they operate at more than 90 volts to ground. (2) Ambient relative humidity of 99 percent. All surrounding floors shall be kept in good condition and free from obstructions, grease, oil, and water. (3) Each tenoning machine shall have all cutting heads, and saws if used, covered by metal guards. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. Industrial Conveyor Belts & Hose; Industrial/MRO/Safety; Machine & Automation Solutions; . 1910.1044 1,2-dibromo-3-chloropropane. 1910.303 General. If the conveyor runs at head height or carries material hung from hooks, workers in the area should remain alert to possible danger and measures should be taken to prevent workers from being accidentally struck by moving material. (d) Conveyors passing over areas that are occupied or used by employees shall be so guarded as to prevent the material transported from falling and causing injury to employees. The spreader shall be slightly thinner than the saw kerf and slightly thicker than the saw disk. c. The test(s) specifications and procedures shall be made available upon request to the validation organization. (The operational and installation requirements of the PSDI safety system may vary for different applications.). 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: Completely barred by a guardrail or other barrier in accordance with paragraphs (m) and (o) of this section; or. (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. (ii) Straight flanges of the adaptor or sleeve type (Table O-7 and Figures O-33 and O-34) shall be undercut so that there will be no bearing on the sides of the wheel within one-eighth inch of the arbor hole. 1. (b) Being a single control protected against accidental actuation and so located that the worker cannot reach into the point of operation while operating the single control. Where the operator feeds or removes parts by placing one or both hands in the point of operation, and a two hand control, presence sensing device, Type B gate or movable barrier (on a part revolution clutch) is used for safeguarding: (i) The employer shall use a control system and a brake monitor which comply with paragraphs (b) (13) and (14) of this section; (ii) The exception in paragraph (b)(7)(v)(d) of this section for two hand controls manufactured and installed before August 31, 1971 is not applicable under this paragraph (c)(5); (iii) The control of air clutch machines shall be designed to prevent a significant increase in the normal stopping time due to a failure within the operating valve mechanism, and to inhibit further operation if such failure does occur, where a part revolution clutch is employed. The visual check shall include a determination that the spring housing or rod does not show damage sufficient to degrade the structural integrity of the unit, and the spring does not show any tendency to interleave. The third-party validation organization, the validating laboratory, and the employees of each shall meet the requirements set forth in this section of this appendix. Guardrail shall be forty-two (42) inches in height, with midrail between top rail and floor. c. Function completion means for, electrical, electromechanical and electronic devices, when the circuit produces a change of state in the output element of the device. (1) Veneer slicer knives shall be guarded to prevent accidental contact with knife edge, at both front and rear. 1910.139 [Reserved] 1910.251 Definitions. 39 FR 23502, June 27, 1974, unless otherwise noted. 7, 1996]. (13) Gate or movable barrier device means a movable barrier arranged to enclose the point of operation before the press stroke can be started. (m) Standard guards - general requirements -. (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. For full revolution clutch presses with more than one engaging point, Tm shall be calculated as follows: Tm = [ 12 + (1 Number of engaging points per revolution)] time necessary to complete one revolution of the crankshaft (seconds). (4) Pulley speeds. The maximum angular exposure of the grinding wheel periphery and sides for safety guards used on cylindrical grinding machines shall not exceed 180. 1910.261 Pulp, paper, and paperboard mills. The stop control shall override any other control, and reactuation of the clutch shall require use of the operating (tripping) means which has been selected. All auxiliary equipment such as mill divider, support bars, spray pipes, feed conveyors, strip knives, etc., shall be located in such a manner as to avoid interference with access to and operation of safety devices. 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. If it so determines, it shall revalidate the employer's recertification that the PSDI system is in full conformance with all requirements of 29 CFR 1910.217(a) through (h) and this appendix A. of this appendix or may request that the original application be submitted to the Assistant Secretary with a statement of reasons supplied by the applicant as to why the application should be approved. See paragraph (c) of 1910.215 for full description. Appendix C to Subpart I of Part 1910Personal Fall Protection Systems Non-Mandatory Guidelines (1) Guards. (3) Flanges. (iii) Individual sensing fields of presence sensing devices used to initiate strokes in the PSDI mode shall cover only one side of the press. Vertical belts running over a lower pulley more than seven (7) feet above floor or platform shall be guarded at the bottom in the same manner as horizontal overhead belts, if conditions are as stated in paragraphs (e)(2)(ii) (a) and (c) of this section. b. A press consists of a stationary bed or anvil, and a slide (or slides) having a controlled reciprocating motion toward and away from the bed surface, the slide being guided in a definite path by the frame of the press. Openings for oiling. (41) Knockout means a mechanism for releasing material from either die. 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. If the deficiencies are not corrected, OSHA may revoke recognition, effective in 60 days, unless the validation organization requests a hearing within that time. It shall be made of material that is soft enough so that it will be unlikely to cause tooth breakage. (1) Hot trimming presses. This subdivision does not apply to flywheels with solid web centers. If you work for a Federal agency, use this drafting b. (2) Cranks and connecting rods. Malleable iron (min. 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. Equip.) (4) Any automatic cutoff saw that strokes continuously without the operator being able to control each stroke shall not be used. Such cross-referencing of specific requirements from paragraphs (a) through (g) of this section is intended only to enhance convenience and understanding in relating to the new provisions to the existing standard, and is not to be construed as limiting the applicability of other provisions in paragraphs (a) through (g) of this section. will bring you directly to the content. A U type guard is permissible. Antirepeat requires release of all tripping mechanisms before another stroke can be initiated. The spreader shall be attached so that it will remain in true alignment with the saw even when either the saw or table is tilted. (45) Point of operation means the area of the press where material is actually positioned and work is being performed during any process such as shearing, punching, forming, or assembling. The various openings are such that for average size hands an operator's fingers won't reach the point of operation. (1) Feed chains and sprockets of all double end tenoning machines shall be completely enclosed, except for that portion of chain used for conveying the stock. (v) Adjustable guard to be used for starting engine or for running adjustment may be provided at the flywheel of gas or oil engines. (See Figure O-24 for one such type of mounting.). Steam hammers shall be provided with a means of cylinder draining, such as a self-draining arrangement or a quick-acting drain cock. 1910.158 Standpipe and hose systems. 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. Guards for horizontal overhead rope and chain drives. b. The certification record shall be made available upon request to the Assistant Secretary for Occupational Safety and Health. (4) Overloading. In every case the sides of trough shall extend at least two (2) inches beyond the shafting or protuberance. Although this appendix as such is not mandatory, it references sections and requirements which are made mandatory by other parts of the PSDI standard and appendices. An OSHA catwalk serviced by a stairway is a type of stair landing. 1910.156 Fire brigades. 1910.94 Ventilation. Tr = Longest response time, in seconds, of all interposing control elements between the presence sensing device and the clutch/brake operating mechanism(s). The validation organization shall make available upon request a list of PSDI safety systems which have been certified/validated by the program. (i) The pedal mechanism shall be protected to prevent unintended operation from falling or moving objects or by accidental stepping onto the pedal. guide. 1910.332 Training. (7) Type 27A depressed center, cutting-off wheels mean wheels having diameter, thickness, and hole size dimensions. 1910.22 General requirements. Object sensitivity describes the capability of a presence sensing device to detect an object in the sensing field, expressed as the linear measurement of the smallest interruption which can be detected at any point in the field. (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. 1910.424 SCUBA diving. Table O-2 - Exposure Versus Wheel Thickness, Table O-4 - Minimum Dimensions for Straight Unrelieved Flanges for Wheels with Threaded Inserts or Projecting Studs. (3) On applications where injury to the operator might result if motors were to restart after power failures, provision shall be made to prevent machines from automatically restarting upon restoration of power. 1910.23 Ladders. 2. (ii) Employee's name, injury sustained, and the task being performed (operation, set-up, maintenance, or other). (ii) Shafting under bench machines shall be enclosed by a stationary casing, or by a trough at sides and top or sides and bottom, as location requires. Since that time there have been several revisions, 1987, 1990, 1993, an Addenda in 1992, 2003, 2009, 2012, and 2015. 7, 1996; 69 FR 31882, June 8, 2004]. (ii) At least annually thereafter, the safety system on a mechanical power press used in the PSDI mode shall be recertified by the employer and revalidated by an OSHA-recognized third-party validation organization to meet all applicable requirements of paragraphs (a) through (h) and appendix A of this section. (i) The operator training required by paragraph (f)(2) of this section shall be provided to the employee before the employee initially operates the press and as needed to maintain competence, but not less than annually thereafter. (5) Unitized tooling. Subpart O: Machinery and Machine Guarding, OSHA 1910 General Industry | UpCodes Subpart O Machinery and Machine Guarding Authority: 29 U.S.C. Specifications Met: ANSI Z359.14, OSHA 1910.66, OSHA 1926.502 ; 3M Protecta Fall Protection AD120BC Rebel Self-Retracting Lifeline With Swivel Hook, 310 lb Load . (3) All double-spindle shapers shall be provided with a spindle starting and stopping device for each spindle. Open frame hammers generally are so constructed that the anvil assembly is separate from the operating mechanism and machine supports; it rests on its own independent foundation.

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