1910.218 Forging machines. This appendix provides employers, manufacturers, and their representatives, with nonmandatory guidelines for use in developing certification documents. 3. The test results shall provide the engineering data necessary to establish confidence that the hardware and software will meet specifications, the manufacturing process has adequate quality control and the data acquired was used to establish processes, procedures, and test levels supporting subsequent hardware design, production, installation and maintenance. (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. 1910.119 Process safety management of highly hazardous chemicals. b. Vertical belts. 1910.307 Hazardous (classified) locations. Any detected broken or unserviceable springs shall be replaced before the test is conducted. (b) The device may not be used as a tripping means to initiate slide motion, except when used in total conformance with paragraph (h) of this section. of this appendix, above, not less than 180 calendar days, nor more than one year, before the expiration date of its current recognition. (5) Power-transmission apparatus located in basements. C. Analyses may be used for certification/validation when existing data are available or when test is not feasible. A separate drafting site (5) Forging presses mean a class of forging equipment wherein the shaping of metal between dies is performed by mechanical or hydraulic pressure, and usually is accomplished with a single workstroke of the press for each die station. (ii) A gate or movable barrier device shall protect the operator as follows: (a) A Type A gate or movable barrier device shall protect the operator in the manner specified in paragraph (c)(3)(i)(f) of this section, and. (6) Multiple wheel mounting. (g) Reports of injuries to employees operating mechanical power presses. Appendix B to Subpart T of Part 1910Guidelines for Scientific Diving 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. Employers and manufacturers are encouraged to recommend other approaches if there is a potential for improving safety and reducing cost. The guard shall be fastened to the frame carrying the rolls so as to remain in adjustment for any thickness of stock. (x) Foot operated tripping controls, if used, shall be protected so as to prevent operation from falling or moving objects, or from unintended operation by accidental stepping onto the foot control. (i) The employer shall establish a diesetting procedure that will insure compliance with paragraph (c) of this section. (ii) Safety triprod. a. (1) Guarding. (5) Saw frames or tables shall be constructed with lugs cast on the frame or with an equivalent means to limit the size of the saw blade that can be mounted, so as to avoid overspeed caused by mounting a saw larger than intended. 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. 1910.17 Effective dates. (xiv) The control system shall perform checks for proper operation of all cycle control logic element switches and contacts at least once each cycle. Ts = Longest press stopping time, in seconds, computed by taking averages of multiple measurements at each of three positions (45 degrees, 60 degrees, and 90 degrees) of crankshaft angular position; the longest of the three averages is the stopping time to use. Machines designed for a fixed location shall be securely anchored to prevent walking or moving. The dates of the period of recognition will be stated in the recognition letter. 1910.401 Scope and application. (3) An adjustable stop shall be provided to prevent the forward travel of the blade beyond the position necessary to complete the cut in repetitive operations. Identification and description of test methods or procedures used. (h) Modified types 6 and 11 wheels (terrazzo). (1) The feed rolls of roll type glue spreaders shall be guarded by a semicylindrical guard. (3) Surface condition. (2) Safety trip, side. 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. Energy delivered during each stroke may be varied. Inspection shall be made of belts, lacings, and fasteners and such equipment kept in good repair. (ii) The point of operation of machines whose operation exposes an employee to injury, shall be guarded. (ii) Fixed or permanent lead pot installations shall be exhausted. A safety trip control shall be provided in front and in back of each mill. The maximum angular exposure of the grinding wheel periphery and sides for safety guards used on cylindrical grinding machines shall not exceed 180. The guard shall be constructed of heavy material, preferably metal, and the bottom of the guard shall come down to within three-eighths inch of the plane formed by the bottom or working surfaces of the feed rolls. Conveyors are a wonderful invention and conveyor safety is important. 1910.1018 Inorganic arsenic. The recommendations of the brake system manufacturer shall be used to simulate or estimate the brake wear. (2) Brakes. If you work for a Federal agency, use this drafting Such attachments shall be securely anchored and adjusted in such a way that the operator is restrained from reaching into the point of operation. (1) Machine guarding. An application may be withdrawn by an applicant, without prejudice, at any time prior to the final decision by the Assistant Secretary in paragraph I.B.8.b. formatting. 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. (12) Upsetters (or forging machines, or headers) type of forging equipment, related to the mechanical press, in which the main forming energy is applied horizontally to the workpiece which is gripped and held by prior action of the dies. 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. Diamond and reinforced wheels are included. 1910.1029 Coke oven emissions. (e) Trip and emergency switches. (vii) Controls for more than one operating station shall be designed to be activated and deactivated in complete sets of two operator's hand controls per operating station by means capable of being supervised by the employer. (1) Gears. 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. b. (ii) A red color stop control shall be provided with the clutch/brake control system. (5) Sharpening or tensioning of saw blades or cutters shall be done only by persons of demonstrated skill in this kind of work. Appendix A to Subpart S of Part 1910 References for Further Information. Reaction Times. Tongs shall be of sufficient length to clear the body of the worker in case of kickback, and shall not have sharp handle ends. (2) Arbor size. In all other industries, wood guards shall not be used. (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. tensile strength 50,000 p.s.i.) (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. (iii) The mode selection means of paragraph (b)(7)(iii) of this section shall have at least one position for selection of the PSDI mode. 1910.66 Powered platforms for building maintenance. Navigate by entering citations or phrases This distance shall apply to the actual working level, whether it be at the general floor level, in a pit, or on a platform. When removing material off conveyors, workers should remain alert and safeguard their hands; the moving material can create pinch points. (2) Drag saws shall be so located as to give at least a 4-foot clearance for passage when the saw is at the extreme end of the stroke; or if such clearance is not obtainable, the saw and its driving mechanism shall be provided with a standard enclosure. Where guard is exposed to contact with moving equipment additional strength may be necessary. The validation organization and/or validating laboratory shall have established written procedures for test and certification/validation of PSDI safety systems. (1) General. Appendix A to Subpart I of Part 1910References for Further Information (Non-mandatory) They shall be of rigid construction and designed to be adjustable to compensate for wheel wear. Where presence sensing devices are used for supplemental safeguarding, a check for proper operation shall be performed using the test rod according to the presence sensing device manufacturer's instructions. While it is permitted to use signs to warn people of hazards in addition to those listed in this area, other accident prevention signs and tags can't have the same design and appearance. Table O-7 - Minimum Dimensions for Straight Flanges - for Mechanical Grinders 12,500 S.F.P.M. (7) Nip-point belt and pulley guard means a device which encloses the pulley and is provided with rounded or rolled edge slots through which the belt passes. [57 FR 42389, Sept. 14, 1992; 58 FR 4549, Jan. 14, 1993; 58 FR 35308, June 30, 1993; 59 FR 4437, Jan. 31, 1994; 59 FR 36695, July 19, 1994; 59 FR 51672, Oct. 12, 1994; 61 FR 5507, Feb. 13, 1996; 61 FR 9227, March 7, 1996; 61 FR 31427, June 20, 1996; 62 FR 1493, Jan. 10, 1997; 62 FR 42666, Aug. 8, 1997; 62 FR 48175, Sept. 15, 1997; 62 FR 66275, Dec. 18, 1997; 63 FR 1152, Jan. 8, 1998; 63 FR 13338, March 19, 1998; 63 FR 17093, April 8, 1998; 63 FR 20098, April 23, 1998; 63 FR 33450, June 18, 1998; 63 FR 66270, Dec. 1, 1998; 64 FR 13908, March 23, 1999; 65 FR 46818, July 31, 2000; 68 FR 32638, June 2, 2003; 68 FR 75780, Dec. 31, 2003; 71 FR 10374, Feb. 28, 2006; 76 FR 33606, June 8, 2011; 77 FR 17765, March 26, 2012; 81 FR 48710, July 26, 2016; 81 FR 60272, September 1, 2016; 81 FR 82981, Nov. 18, 2016; 82 FR 31253, July 6, 2017; 83 FR 9702, March 7, 2018], Occupational Safety & Health Administration, Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance. (2) Belt shippers and shipper poles. This diagram shows the accepted safe openings between the bottom edge of a guard and feed table at various distances from the danger line (point of operation). This portion of the guard shall be self-adjusting to raise and lower with the guide. 3. OSHA does not have a standard that sets a maximum limit on how much weight a person may lift or carry. 1910.216 Mills and calenders in the rubber and plastics industries. (C) The operation, function and performance of the PSDI mode. 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. This should enhance the reliability of the device and ensure that it remains operable. (ii) Inspection shall be made of belts, lacings, and fasteners and such equipment kept in good repair. 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 1910.140 Personal fall protection systems. Unless a 6-foot 6-inch headroom clearance is provided, employees shall not be permitted to pass under conveyors. Wherever flywheels are above working areas, guards shall be installed having sufficient strength to hold the weight of the flywheel in the event of a shaft or wheel mounting failure. After installation of point of operation guards and before a job is released for operation a check should be made to verify that the guard will prevent the operator's hands from reaching the point of operation. (2) On machines driven by belts and shafting, a locking-type belt shifter or an equivalent positive device shall be used. 1910.124 General requirements for dipping and coating operations. Bandsaw wheels shall be fully encased. Blanking of the sensing field is not permitted. (47) Repeat means an unintended or unexpected successive stroke of the press resulting from a malfunction. (ii) The motor start button shall be protected against accidental operation. (ii) Be installed on a press such that it indicates when the performance of the braking system has deteriorated to the extent described in paragraph (b)(14)(i) of this section; and. An OSHA catwalk serviced by a stairway is a type of stair landing. Engine rooms. Die-setting and maintenance procedures shall comply with paragraphs (a) through (g) of this section, and shall not be done in the PSDI mode. 2. (1) Each circular crosscut table saw shall be guarded by a hood which shall meet all the requirements of paragraph (c)(1) of this section for hoods for circular ripsaws. 1910.1005 [Reserved] (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. When required by paragraph (c)(5) of this section, the brake monitor shall meet the following requirements: (i) Be so constructed as to automatically prevent the activation of a successive stroke if the stopping time or braking distance deteriorates to a point where the safety distance being utilized does not meet the requirements set forth in paragraph (c)(3)(iii)(e) or (c)(3)(vii)(c) of this section. Pulleys with cracks, or pieces broken out of rims, shall not be used. (v) A covered container shall be provided to store dross skimmings. (vi) The employer shall notify the OSHA-recognized third-party validation organization within five days of the occurrence of any point of operation injury while a press is used in the PSDI mode. The documentation shall include, but not be limited to, the following items: a. A separate pushbutton shall be employed to activate the clutch, and the clutch shall be activated only if the driver motor is deenergized. (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. (b) Abrasive discs (inserted nut, inserted washer, and projecting stud type). Where any portion of the train of gears guarded by a band guard is less than six (6) feet from the floor a disk guard or a complete enclosure to the height of six (6) feet shall be required. If previous design, history and application are considered to be similar, but not equal to or more exacting than earlier experiences, the additional or partial certification/validation tests should concentrate on the areas of changed or increased requirements. Limitation: These wheels shall be mounted only with a special tapered flange. It should be noted that this does not require redundancy for press components such as structural elements, clutch/brake mechanisms, plates, etc., for which adequate reliability may be achieved by proper design, maintenance, and inspection. (d) The control systems shall be designed to require release of all operators' hand controls before an interrupted stroke can be resumed. 2. (4) Power controls and operating controls should be located within easy reach of the operator while he is at his regular work location, making it unnecessary for him to reach over the cutter to make adjustments. Expanded metal, sheet or perforated metal, and wire mesh shall be securely fastened to frame. The maximum angular exposure of the grinding wheel periphery and sides for safety guards used on machines known as swing frame grinding machines shall not exceed 180, and the top half of the wheel shall be enclosed at all times. Tp = Longest presence sensing device response time, in seconds. The table throat opening shall be not more than 212 inches when tables are set or aligned with each other for zero cut. 1 CFR 1.1 (i) Pulleys shall be kept in proper alignment to prevent belts from running off. (ii) The spindle end, nut, and outer flange may be exposed on machines designed as portable saws. Equip.) (i) Under the general component of the inspection program, the employer shall: (A) Conduct periodic and regular inspections of each power press to ensure that all of its parts, auxiliary equipment, and safeguards, including the clutch/brake mechanism, antirepeat feature, and single-stroke mechanism, are in a safe operating condition and adjustment; (B) Perform and complete necessary maintenance or repair, or both, before operating the press; and. Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance. OSHA may revoke its recognition of a validation organization if its program either has failed to continue to satisfy the requirements of this appendix or its letter of recognition, has not been performing the validation functions required by the PSDI standard and appendix A, or has misrepresented itself in its applications. 1910.1200 Hazard communication. Clutches, cutoff couplings, or clutch pulleys having projecting parts, where such clutches are located seven (7) feet or less above the floor or working platform, shall be enclosed by a stationary guard constructed in accordance with this section. (2) Each bandsaw machine shall be provided with a tension control device to indicate a proper tension for the standard saws used on the machine, in order to assist in the elimination of saw breakage due to improper tension. Guarding friction drives. Each reaction time required to calculate the Safety Distance, including the brake monitor setting, shall be documented in separate reaction time tests. SOURCE: 39 FR 23502, June 27, 1974, unless otherwise noted. 1910.266 Logging operations. Then rotate the wheel 45 and repeat the test. e-CFR 1910.219 (a) General requirements. All manually operated valves and switches shall be clearly identified and readily accessible. (iii) Means shall be provided for disconnecting the power to the machine and for locking out or rendering cycling controls inoperable. Table O-8 - Minimum Dimensions for Straight Flanges Used as Wheel Sleeves for Precision Grinding Only. Bearings. (1) Mechanical forging presses. Annually, or after a change specified in paragraph 1., the employer shall inspect and recertify the installation as meeting the requirements set forth under B., Installation Certification/Validation. They shall be designed to provide adequate holding power for all the thicknesses of material being cut. 1910.424 SCUBA diving. A slot opening for jack bar will be permitted. Solid material used for this purpose shall be of an equivalent strength and firmness. f. The instrument used to measure reaction time shall be calibrated to be accurate to within 0.001 second. (ii) A pad with a nonslip contact area shall be firmly attached to the pedal. Grinding wheels shall fit freely on the spindle and remain free under all grinding conditions. Employees are required to cover and protect long hair to prevent it from getting caught in machine parts such as belts, chain and rotating parts. 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. (iii) A fixed barrier guard shall be attached securely to the frame of the press or to the bolster plate. (1) Hot trimming presses. The manufacturer shall submit to the validation organization the technical analysis such as Hazard Analysis, Failure Mode and Effect Analysis, Stress Analysis, Component and Material Selection Analysis, Fluid Compatability, and/or other analyses which may be necessary to demonstrate, compliance with the following requirements: Sections 1910.217(h)(8) (i) and (ii); (h)(2) (ii) and (iii); (h)(3)(i) (A) and (C), and (ii); (h)(5) (i), (ii) and (iii); (h)(6) (i), (iii), (iv), (vi), (vii), (viii), (ix), (x), (xi), (xiii), (xiv), (xv), (xvi), and (xvii); (h)(7) (i) and (ii); (h)(9) (iv), (v), (viii), (ix) and (x); (h)(10) (i) and (ii). 1. (4) Tongs. (4) Belt sanding machines shall be provided with guards at each nip point where the sanding belt runs on to a pulley. Conveyors are safe when used correctly, but they can be dangerous, and even deadly, if workers fail to follow safety procedures when working on or around them. Validation for Design Certification/Validation. 1910.217 Mechanical power presses. 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. Mills and calenders in the rubber and plastics industries. b. When flywheel extends into pit or is within 12 inches of floor, a standard toeboard shall also be provided; (iii) When the upper rim of flywheel protrudes through a working floor, it shall be entirely enclosed or surrounded by a guardrail and toeboard. Cranks and connecting rods, when exposed to contact, shall be guarded in accordance with paragraphs (m) and (n) of this section, or by a guardrail as described in paragraph (o)(5) of this section. The Part 1910 - OSHA General Industry regulations book is designed to assist you in meeting OSHA requirements. 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. 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. 1 The recommendations listed in the above table are guides for the conditions stated. Visors or other accessory equipment shall not be included as a part of the guard when measuring the guard opening, unless such equipment has strength equal to that of the guard.
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