The PSDI set-up/reset means required by paragraph (h)(6)(iv) may be initiated by the actuation of a special momentary pushbutton or by the actuation of a special momentary pushbutton and the initiation of a first stroke with two hand controls. (31) Foot pedal means the foot operated lever designed to operate the mechanical linkage that trips a full revolution clutch. (x) All components and subsystems of the control system shall be designed to operate together to provide total control system compliance with the requirements of this section. (2) Guard exposure angles. A recognized validation organization may change a test method of the PSDI safety system certification/validation program by notifying the Assistant Secretary of the change, certifying that the revised method will be at least as effective as the prior method, and providing the supporting data upon which its conclusions are based. 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. All projecting keys, setscrews, and other projections in revolving parts shall be removed or made flush or guarded by metal cover. Allow OSHA to conduct unscheduled reviews or on-site audits of it or the validating laboratories on matters relevant to PSDI, and cooperate in the conduct of these reviews and audits; 2. (21) Die setter means an individual who places or removes dies in or from mechanical power presses, and who, as a part of his duties, makes the necessary adjustments to cause the tooling to function properly and safely. (3) Upon issuance of the decision, any party to the hearing may file exceptions within 20 days pursuant to subpart C. If exceptions are filed, the administrative law judge shall forward the decision, exceptions and record to the Assistant Secretary for the final decision on the application. (This may be through reference to published sources which describe the test methods or procedures used.). 2. Gears shall be guarded in accordance with one of the following methods: (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. (iv) The pull-out device shall protect the operator as specified in paragraph (c)(3)(i)(b) of this section, and shall include attachments for each of the operator's hands. (10) Bolt-headers mean the same as an upsetter or forging machine except that the diameter of stock fed into the machine is much smaller, i.e., commonly three-fourths inch or less. 2. Maximum hole size for all other applications should not exceed one-half wheel diameter. 2. guide. 1910.23 Ladders. (43) Operator's station means the complete complement of controls used by or available to an operator on a given operation for stroking the press. 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. (7) Environmental requirements. 1910.166-1910.168 [Reserved] Comments or questions about document content can not be answered by OFR staff. 3. Subpart EExit Routes and Emergency Planning, 1910.33 Table of contents. 7, 1996]. The failure shall be indicated by the system. The most recent records shall be made available to OSHA upon request. (a) When used in press operations requiring more than one operator, separate two hand controls shall be provided for each operator, and shall be designed to require concurrent application of all operators' controls to activate the slide. Brake capacity shall be sufficient to stop the motion of the slide quickly and capable of holding the slide and its attachments at any point in its travel. (i) Machines using full revolution clutches shall incorporate a single-stroke mechanism. (v) The sweep device may not be used for point of operation safeguarding. Appendix C to Subpart T of Part 1910Alternative Conditions Under 1910.401(a)(3) for Recreational Diving Instructors and Diving Guides (Mandatory). (ii) Employee's name, injury sustained, and the task being performed (operation, set-up, maintenance, or other). Where a mill is so installed that persons cannot normally reach through, over, under, or around to come in contact with the roll bite or be caught between a roll and an adjacent object, then, provided such elements are made a fixed part of a mill, safety control devices listed in paragraph (b) of this section shall not apply. 1910.183 Helicopters. (1) Guarding. (v) The PSDI mode of operation shall be used only for normal production operations. (5) Grinding. 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 All measurements on mills and calenders shall be taken with the rolls running empty at maximum operating speed. Acceptable design features shall demonstrate, in the following order or precedence, that: (1) No single failure points may cause injury; or. The machine guarding standard, 29 Code of Federal Regulations (CFR 1910.212), always seems to make OSHA's Top 10 Most Frequently Cited list. 1. Only part revolution type mechanical power presses are approved for PSDI. One or more methods of machine guarding shall be provided to protect the operator and other employees in the machine area from hazards such as those created by point of operation, ingoing nip points, rotating parts, flying chips and sparks. Mills and calenders in the rubber and plastics industries. (5) Changing dies. The objective of the certification/validation program is to demonstrate and document that the system satisfies specification and operational requirements for safe operations. All upsetters shall be installed so that they remain on their supporting foundations. Shaft couplings shall be so constructed as to present no hazard from bolts, nuts, setscrews, or revolving surfaces. The provisions of paragraph (h) of this section shall apply to rivet making. Usually used for preforming, roll forging is often employed to reduce thickness and increase length of stock. The dates of the period of recognition will be stated in the recognition letter. (3) Auxiliary equipment. (3) Guards for horizontal overhead belts. (s) Inspection and maintenance of woodworking machinery. Diamond and reinforced wheels are included. (1) Safety cylinder head. (a) As used in 1910.213 and 1910.214 unless the context clearly requires otherwise, the following woodworking machinery terms shall have the meaning prescribed in this paragraph. This document is not intended to be totally inclusive but rather to highlight the information and requirements in the complete OSHA standard that all owners and You can learn more about the process (v) An indicator visible to the operator and readily seen by the employer shall be provided which shall clearly indicate that the system is set-up for cycling in the PSDI mode. (iv) Type of safeguard(s) being used (two hand control, two hand trip, pullouts, sweeps, or other). The safety system provision continues the concept of paragraph (b)(13) that the probability of two independent failures in the length of time required to make one press cycle is so remote as to be a negligible risk factor in the total array of equipment and human factors. (b) Where passage is regarded as necessary, there shall be a platform over the lower run guarded on either side by a railing completely filled in with wire mesh or other filler, or by a solid barrier. In addition, General Industry applications must adhere to OSHA regulations for Ladder Safety 1910.23 (if applicable) and Walking-Working Surfaces 1910.28. Where light curtain object sensitivity is user-adjustable, either discretely or continuously, design features shall limit the minimum object sensitivity adjustment not to exceed one and one-fourth inches (31.75 mm). (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. (12) Pressure vessels. If the validation organization and the validating laboratory are the same organization, the administrative and technical responsibilities may be combined in a single position, with minimum requirements as described in E.1. 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. Wall thickness at the back is normally greater than at the grinding face (W). Gears. (2) Hydraulic forging presses. 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). The validation organization or validating laboratory shall maintain a record of each certification/validation of a PSDI safety system, including manufacturer and/or employer certification documentation, test and working data, test report, certification/validation report, any follow-up inspections or testing, and reports of equipment failures, any reports of accidents involving the equipment, and any other pertinent information. (26) Feeding means the process of placing or removing material within or from the point of operation. Each recognized third-party validation organization and its validating laboratories shall: 1. Industrial Conveyor Belts & Hose; Industrial/MRO/Safety; Machine & Automation Solutions; . (C) Maintain a certification record of each maintenance task performed under the directed component of the inspection program that includes the date of the maintenance task, the signature of the person who performed the maintenance task, and the serial number, or other identifier, of the power press maintained. 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. Bearings shall be kept in alignment and properly adjusted. 1910.421 Pre-dive procedures. 1910.214 Cooperage machinery. Broken pulleys. An open space, not exceeding four (4) inches in width, may be left between the outside edge of the disk and the rim of the wheel if desired, to facilitate turning the wheel over. (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. They shall be designed to provide adequate holding power for all the thicknesses of material being cut. Rivet making with less than 1-inch diameter is usually a cold forging operation, and therefore not included in this subpart. 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. (i) Every point of operation guard shall meet the following design, construction, application, and adjustment requirements: (a) It shall prevent entry of hands or fingers into the point of operation by reaching through, over, under or around the guard; (b) It shall conform to the maximum permissible openings of Table O-10; (c) It shall, in itself, create no pinch point between the guard and moving machine parts; (d) It shall utilize fasteners not readily removable by operator, so as to minimize the possibility of misuse or removal of essential parts; (e) It shall facilitate its inspection, and. 1910.1010 Benzidine. The safety tripping devices shall be located within reach of the operator and the bite. 1910.1029 Coke oven emissions. Occupational Safety and Health Administration (OSHA) No current OSHA standards apply specifically to compacting and baling equipment. b. This does not apply to constant pressure controls used only for setup purposes. If you have questions for the Agency that issued the current document please contact the agency directly. (23) Die shoe means a plate or block upon which a die holder is mounted. (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. (5) Exposure of blades. (2) Boring bits should be provided with a guard that will enclose all portions of the bit and chuck above the material being worked. (16) Sweep device means a single or double arm (rod) attached to the upper die or slide of the press and designed to move the operator's hands to a safe position as the dies close, if the operator's hands are inadvertently within the point of operation. A die shoe functions primarily as a base for the complete die assembly, and, when used, is bolted or clamped to the bolster plate or the face of slide. The manufacturer's certification shall be validated by an OSHA-recognized third-party validation organization to meet all applicable requirements of paragraphs (a) through (h) and appendix A of this section. Employees are also encouraged to pay close attention to work pieces that have slots or other surface profiles that may increase the risk of entanglement. 1910.95 Occupational noise exposure. (2) through (4) of this appendix except that the burden of proof shall be on OSHA to demonstrate by a preponderance of the evidence that the recognition should be revoked because the validation organization either is not meeting the requirements for recognition, has not been performing the validation functions required by the PSDI standard and appendix A, or has misrepresented itself in its applications. The validation organization and/or validating laboratory shall have established written procedures for test and certification/validation of PSDI safety systems. above floor level. (9) Repairs and maintenance. Surface Feet per minute .262 12 1,000 = 3,144 s.f.p.m. The employer shall: (i) Use dies and operating methods designed to control or eliminate hazards to operating personnel, and. (4) Belt sanding machines shall be provided with guards at each nip point where the sanding belt runs on to a pulley. The records shall include the manufacture and model number of each component and subsystem, the calculations of the safety distance as required by paragraph (h)(9)(v) of this section, and the stopping time measurements required by paragraph (h)(2)(ii) of this section. a. Appendix D to Subpart L of Part 1910Availability of Publications Incorporated by Reference in Section 1910.156 Fire Brigades 1910.1450 Occupational exposure to hazardous chemicals in laboratories. (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. For flywheels with smooth rims five (5) feet or less in diameter, where the preceding methods cannot be applied, the following may be used: A disk attached to the flywheel in such manner as to cover the spokes of the wheel on the exposed side and present a smooth surface and edge, at the same time providing means for periodic inspection. (iii) Stamped to indicate complete die weight when handling equipment may become overloaded. Name of manufacturer and catalog or model number of each subsystem or major component. Steam or air piping shall conform to the specifications of American National Standard ANSI B31.1.0-1967, Power Piping with Addenda issued before April 28, 1971, which is incorporated by reference as specified in 1910.6. The test specifications and procedures shall be made available upon request to the validation organization. The upper run shall be so guarded as to prevent contact therewith either by the worker or by objects carried by him. 39 FR 23502, June 27, 1974, unless otherwise noted. (iv) For flywheels with smooth rims five (5) feet or less in diameter, where the preceding methods cannot be applied, the following may be used: A disk attached to the flywheel in such manner as to cover the spokes of the wheel on the exposed side and present a smooth surface and edge, at the same time providing means for periodic inspection. (i) Point of operation devices shall protect the operator by: (a) Preventing and/or stopping normal stroking of the press if the operator's hands are inadvertently placed in the point of operation; or, (b) Preventing the operator from inadvertently reaching into the point of operation, or withdrawing his hands if they are inadvertently located in the point of operation, as the dies close; or, (c) Preventing the operator from inadvertently reaching into the point of operation at all times; or, (e) Requiring application of both of the operator's hands to machine operating controls and locating such controls at such a safety distance from the point of operation that the slide completes the downward travel or stops before the operator can reach into the point of operation with his hands; or, (f) Enclosing the point of operation before a press stroke can be initiated, and maintaining this closed condition until the motion of the slide had ceased; or. Shaft couplings shall be so constructed as to present no hazard from bolts, nuts, setscrews, or revolving surfaces. (vi) The control system shall incorporate a timer to deactivate PSDI when the press does not stroke within the period of time set by the timer. 1910.109 Explosives and blasting agents. A. Certification/validation of hardware design below the system level should be accomplished by test and/or analysis. (9) All belts, pulleys, gears, shafts, and moving parts shall be guarded in accordance with the specific requirements of 1910.219. (1) Type 1 straight wheels means wheels having diameter, thickness, and hole size dimensions, and they should be used only on the periphery. When dies are being changed or maintenance is being performed on the press, the following shall be accomplished: (i) The hydraulic pumps and power apparatus shall be locked out. (B) The air supply for pneumatic clutch/brake control valves shall incorporate a filter, an air regulator, and, when necessary for proper operation, a lubricator. Based upon this determination, a scale shall be developed to indicate the allowable 10 percent of the stopping time at the top of the stroke for slide or ram overtravel due to brake wear. 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. 1910.11 Scope and purpose. 1910.1005 [Reserved] (6) Types 27 and 28 depressed center wheels mean wheels having diameter, thickness, and hole size dimensions. 1910.309-1910.330 [Reserved], 1910.331 Scope. (iii) A presence sensing point of operation device shall protect the operator as provided in paragraph (c)(3)(i)(a) of this section, and shall be interlocked into the control circuit to prevent or stop slide motion if the operator's hand or other part of his body is within the sensing field of the device during the downstroke of the press slide. The certification record shall be made available upon request to the Assistant Secretary for Occupational Safety and Health. All mechanical power transmission apparatus located in basements, towers, and rooms used exclusively for power transmission equipment shall be guarded in accordance with this section, except that the requirements for safeguarding belts, pulleys, and shafting need not be complied with when the following requirements are met: (i) The basement, tower, or room occupied by transmission equipment is locked against unauthorized entrance. Shall not engage in the design, manufacture, sale, promotion, or use of the certified equipment. (iv) Periodic inspections of clutch and brake mechanisms shall be performed to assure they are in proper operating condition. As a Pulley speeds. (vii) The two hand control device shall protect the operator as specified in paragraph (c)(3)(i)(e) of this section.