Blanking of the sensing field is not permitted. OSHA intends that PSDI continue to be prohibited where present state-of-the-art technology will not allow it to be done safely. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. (i) Suspended counterbalanced tighteners and all parts thereof shall be of substantial construction and securely fastened; the bearings shall be securely capped. c. Its employees are secure from discharge resulting from pressures from manufacturers, suppliers, vendors, employers or employee representatives. Pulleys, any parts of which are seven (7) feet or less from the floor or working platform, shall be guarded in accordance with the standards specified in paragraphs (m) and (o) of this section. OSHA Conveyor Standards | PDF | Safety | Transmission (Mechanics) - Scribd (a) Attachments shall be connected to and operated only by the press slide or upper die. Cast iron (min. Instructions for use of the test rod shall be noted on a label affixed to the presence sensing device. They shall be designed to provide adequate holding power for all the thicknesses of materials being cut. (2) Calender means a machine equipped with two or more metal rolls revolving in opposite directions and used for continuously sheeting or plying up rubber and plastics compounds and for frictioning or coating materials with rubber and plastics compounds. (i) Air-lift hammers shall have a safety cylinder head as required in paragraph (d)(1) of this section. 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. (d) The control systems shall be designed to require release of all operators' hand controls before an interrupted stroke can be resumed. Such mesh or perforated metal shall be not less than 0.037 inch (U.S. Gage No. (2) Each radial saw used for ripping shall be provided with nonkickback fingers or dogs located on both sides of the saw so as to oppose the thrust or tendency of the saw to pick up the material or to throw it back toward the operator. 7, 1996]. Rivet making with less than 1-inch diameter is usually a cold forging operation, and therefore not included in this subpart. Flexible steel band brakes do not possess a long-term reliability against structural failure as compared to other types of brakes, and therefore are not acceptable on presses used in the PSDI mode of operation. 1910.9 Compliance duties owed to each employee. Machinery shall be oiled when not in motion, wherever possible. (7) Die fastening. 1910.159 Automatic sprinkler systems. (2) Lockouts. (2) On machines driven by belts and shafting, a locking-type belt shifter or an equivalent positive device shall be used. Please do not provide confidential Tail rods or extension piston rods shall be guarded in accordance with paragraphs (m) and (o) of this section, or by a guardrail on sides and end, with a clearance of not less than fifteen (15) nor more than twenty (20) inches when rod is fully extended. 1910.124 General requirements for dipping and coating operations. [Reserved], https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1910/subpart-O. (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. (i) The employer shall establish a diesetting procedure that will insure compliance with paragraph (c) of this section. 653, 655, 657; Secretary of Labor's Order No. (3) Steam hammers mean a type of drop hammer where the ram is raised for each stroke by a double-action steam cylinder and the energy delivered to the workpiece is supplied by the velocity and weight of the ram and attached upper die driven downward by steam pressure. (34) Fixed barrier guard means a die space barrier attached to the press frame. (5) Additional requirements for safe-guarding. (iv) A PSDI set-up/reset means shall be provided which requires an overt action by the operator, in addition to PSDI mode selection, before operation of the press by means of PSDI can be started. 1910.427 Liveboating. 1910.1201 Retention of DOT markings, placards and labels. OSHA regulates conveyors specifically in its construction rule at 29 CFR 1926.555, and the general use of such equipment is regulated under general industry and contruction rules for lockout/tagout, machine guarding, signs, signals, and barricades, and under the General Duty Clause. (4) Overloading. The manufacturer shall evaluate and certify, and the OSHA-recognized third-party validation organization shall validate, the design and operation of the safety system by determining conformance with the following: a. 1910.97 Nonionizing radiation. (B) After a press has been equipped with a safety system whose design has been certified and validated in accordance with paragraph (h)(11)(i) of this section, the safety system installation shall be certified by the employer, and then 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. 1910.136 Foot protection. This appendix prescribes mandatory requirements and procedures for OSHA recognition of third-party validation organizations to validate employer and manufacturer certifications that their equipment and practices meet the requirements of the PSDI standard. (vii) Means used to actuate press stroke (foot trip, foot control, hand trip, hand control, or other). (9) Prime movers include steam, gas, oil, and air engines, motors, steam and hydraulic turbines, and other equipment used as a source of power. 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. 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. OSHA 1926 and 1910 Standards Books | OSHA - OSHA Education Center (49) Single stroke means one complete stroke of the slide, usually initiated from a full open (or up) position, followed by closing (or down), and then a return to the full open position. (3) Belt perches. 1910.105 Nitrous oxide. (9) Ring rolls mean a class for forging equipment used for shaping weldless rings from pierced discs or thick-walled, ring-shaped blanks between rolls which control wall thickness, ring diameter, height and contour. 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. It shall automatically adjust itself to the thickness of and remain in contact with the material being cut. ), Wherever the nature of the work requires contact with the wheel below the horizontal plane of the spindle, the exposure shall not exceed 125. (i) Spring counterbalance systems when used shall incorporate means to retain system parts in event of breakage. The removal of a hand from any control button shall cause the slide to stop. The assumptions made during the analysis should be clearly stated and a description of the effects of these assumptions on the conclusions and limits should be included. Calculating Safe Mounting Distances for Safeguards | EHS Today Adjustable guard to be used for starting engine or for running adjustment may be provided at the flywheel of gas or oil engines. (e) Cylinders, cup, or segmental wheels that are mounted in chucks. The work rest shall be securely clamped after each adjustment. 5. (ii) The spindle end, nut, and outer flange may be exposed on machines designed as portable saws. (vi) Electrical clutch/brake control circuits shall incorporate features to minimize the possibility of an unintended stroke in the event of the failure of a control component to function properly, including relays, limit switches, and static output circuits. In powerplants only the lower run of the belt need be guarded. (2) Calenders. While the employer is responsible for assuring that the certification/validation requirements in 1910.217(h)(11) are fulfilled, the design certification of PSDI safety systems may be initiated by manufacturers, employers, and/or their representatives. Personal protective equipment shall be used in grinding operations, and equipment shall be used and maintained in accordance with ANSI B7.1-1970, Safety Code for the Use, Care, and Protection of Abrasive Wheels, which is incorporated by reference as specified in 1910.6, and with 1910.215. Reactivation of the clutch shall require restoration of normal air supply and use of the tripping mechanism(s). An OSHA catwalk serviced by a stairway is a type of stair landing. 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. The top rods shall be not more than 72 inches above the level on which the operator stands. (2) Rivet making. The upper run shall be so guarded as to prevent contact therewith either by the worker or by objects carried by him. The basement, tower, or room occupied by transmission equipment is locked against unauthorized entrance. (v) All clutch/brake control electrical circuits shall be protected against the possibility of an accidental ground in the control circuit causing false operation of the press. Fixing of selection shall be by means capable of supervision by the employer. (1) General. means the distance in feet any one abrasive grain on the peripheral surface of a grinding wheel travels in 1 minute. 2. If made of pipe, the post shall be one and one-fourth (114) inches inside diameter, or larger. The guard shall be constructed of heavy material, preferably metal, and the edge of the guard shall come to within three-eighths inch of the plane formed by the inside face of the feed roll in contact with the stock being cut. Guardrail shall be forty-two (42) inches in height, with midrail between top rail and floor. a. Preliminary approval. (2) Brakes. The sides of the trough shall come within at least six (6) inches of the underside of table, or if shafting is located near floor within six (6) inches of floor. OSHA General Industry Machinery and Machine Guarding 1910 - ISHN Other Safety Resources - CEMA The OSHA-recognized third-party validation organization shall conduct tests, and/or review and evaluate the employer's installation tests, documentation and representations. (4) Installation shall be in such a manner that the front end of the unit will be slightly higher than the rear, so as to cause the cutting head to return gently to the starting position when released by the operator. (ii) Employee's name, injury sustained, and the task being performed (operation, set-up, maintenance, or other). (5) Blotters. The time increase allowed shall be limited to no more than 10 percent of the longest press stopping time measured at the top of the stroke, or 10 milliseconds, whichever is longer. (12) Guard design specifications. and fell backwards and hit my head on the frame of the conveyor . Workplace Violence. (6) Each operating treadle shall be covered by an inverted U-shaped metal guard, fastened to the floor, and of adequate size to prevent accidental tripping. A certification/validation report shall be prepared for each PSDI safety system for which the certification is validated. The cone belt and pulley shall be equipped with a belt shifter so constructed as to adequately guard the nip point of the belt and pulley. 11. Fast and consistent stopping times are important to safety for the PSDI mode of operation. (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. Upon request, the employer must make available to that office all tests and analyses for OSHA review. f. The applicant shall certify that the information submitted is accurate. (ii) If the belt is of the endless type or laced with rawhide laces, and a belt shifter is not desired, the belt will be considered guarded if the nip point of the belt and pulley is protected by a nip point guard located in front of the cone extending at least to the top of the largest step of the cone, and formed to show the contour of the cone in order to give the nip point of the belt and pulley the maximum protection. (14) Holdout or restraint device means a mechanism, including attachments for operator's hands, that when anchored and adjusted prevent the operator's hands from entering the point of operation. This section covers the principal features with which power transmission safeguards shall comply. (ii) All guards for inclined belts shall be arranged in such a manner that a minimum clearance of seven (7) feet is maintained between belt and floor at any point outside of guard. 1910.263 Bakery equipment. "Published Edition". 1910.169 Air receivers. (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. 1910.509Incorporation by reference. Such flanges shall be at least one-fourth the wheel diameter. is available with paragraph structure matching the official CFR In addition, General Industry applications must adhere to OSHA regulations for Ladder Safety 1910.23 (if applicable) and Walking-Working Surfaces 1910.28. 1910.142 Temporary labor camps. See paragraph (c) of 1910.215 for full description. 3. An application may be revised by an applicant at any time prior to the completion of the final staff recommendation. Compliance with 1910.217(h)(2)(iii). Nor would it be necessary to repeat these tests in the case of modifications where determined by the manufacturer and validated by the third-party validation organization to be equivalent by similarity analysis. Search & Navigation 1910.306 Specific purpose equipment and installations. Subpart O - Machinery and Machine Guarding. The guarding device shall be in conformity with any appropriate standards therefor, or, in the absence of applicable specific standards, shall be so designed and constructed as to prevent the operator from having any part of his body in the danger zone during the operating cycle. (v) The employer shall notify the OSHA-recognized third-party validation organization within five days whenever a component or a subsystem of the safety system fails or modifications are made which may affect the safety of the system. (x) Hand tools. Where a disk is used, the keys or other dangerous projections not covered by disk shall be cut off or covered. (4) Tongs. (1) The feed rolls of roll type glue spreaders shall be guarded by a semicylindrical guard. (viii) Supplemental safeguarding shall be used to protect all areas of access to the point of operation which are unprotected by the PSDI presence sensing device. (ii) If operating speed does not exceed 8,000 surface feet per minute cast iron safety guards, malleable iron guards or other guards as described in paragraph (b)(10)(iii) of this section shall be used. Handling equipment attach points shall be provided on all dies requiring mechanical handling. Stopping distances shall be expressed in inches of surface travel of the roll from the instant the emergency stopping device is actuated. Appendix to Subpart E of Part 1910Exit Routes, Emergency Action Plans, and Fire Prevention Plans, Subpart FPowered Platforms, Manlifts, and Vehicle-Mounted Work Platforms. (4) Type 11 flaring cup wheels mean wheels having double diameter dimensions D and J, and in addition have thickness, hole size, rim and back thickness dimensions. 1910.1005 [Reserved] The explanation and use of the scale shall be documented. It shall be made of material that is soft enough so that it will be unlikely to cause tooth breakage. The Type 27 A Wheel is mounted between flat non-relieved flanges of equal bearing surfaces. It is not an official legal edition of the CFR. 1910.166-1910.168 [Reserved] Limitation: Hole dimension (H) should not be greater than two-thirds of wheel diameter dimension (D) for precision, cylindrical, centerless, or surface grinding applications. Suspended counterbalanced tighteners and all parts thereof shall be of substantial construction and securely fastened; the bearings shall be securely capped. (B) Alternatives to photo-electric light curtains may be used for PSDI when the employer can demonstrate, through tests and analysis by the employer or the manufacturer, that the alternative is as safe as the photo-electric light curtain, that the alternative meets the conditions of this section, has the same long term reliability as light curtains and can be integrated into the entire safety system as provided for in this section. a. This prohibition is needed to increase the reliability of the presence sensing device in initiating a stroke only when the desired work motion has been completed. The spreader shall be made of hard tempered steel, or its equivalent, and shall be thinner than the saw kerf. A safety trip control shall be provided in front and in back of each mill. The back flange shall extend beyond the central hub or raised portion and contact the wheel to counteract the side pressure on the wheel in use. The validating organization may utilize the competence, experience, and capability of its employees to demonstrate this competence, experience and capability. Engine rooms. (6) Multiple wheel mounting. (g) Swing cutoff saws. (See Figure O-24 for one such type of mounting.). of this appendix, above, not less than 180 calendar days, nor more than one year, before the expiration date of its current recognition. This web site is designed for the current versions of (ii) The following checks shall be made at the beginning of each shift and whenever a die change is made. c. The test(s) specifications and procedures shall be made available upon request to the validation organization. Shall have legal authority to perform the validation of certification; 2. (ii) Unused keyways shall be filled up or covered. (42) Liftout means the mechanism also known as knockout. 12. The validation organization and/or validating laboratory shall have established written procedures for test and certification/validation of PSDI safety systems. OSHA does not have a standard that sets a maximum limit on how much weight a person may lift or carry. (iii) Suitable reinforcement shall be provided for the ceiling rafters or overhead floor beams, where such is necessary, to sustain safely the weight and stress likely to be imposed by the guard. 1910.266 Logging operations. (ii) The point of operation of machines whose operation exposes an employee to injury, shall be guarded. Lubrication of bearings is considered the single greatest deterrent to their failure. Tongs shall be of sufficient length to clear the body of the worker in case of kickback, and shall not have sharp handle ends. (1) Belts include all power transmission belts, such as flat belts, round belts, V-belts, etc., unless otherwise specified. (iii) Types 16, 17, 18, 18R, and 19 cones, plugs, and threaded hole pot balls where the work offers protection. (m) Standard guards - general requirements -. [39 FR 23502, June 27, 1974, as amended at 43 FR 49750, Oct. 24, 1978; 49 FR 5323, Feb. 10, 1984]. C. Analyses may be used for certification/validation when existing data are available or when test is not feasible. This appendix provides employers, manufacturers, and their representatives, with nonmandatory guidelines for use in developing certification documents. The identified parts, components and subsystems shall be certified by the manufacturer to be able to withstand the functional and operational environments of the PSDI safety system. Organization and Purpose The use in the formula of twice the stopping time increase, Tm, allowed by the brake monitor for brake wear allows for greater increases in the downstroke stopping time than occur in normal stopping time at the top of the stroke. Usually used for preforming, roll forging is often employed to reduce thickness and increase length of stock. (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. (B) Counterbalances shall be adjusted in accordance with the press manufacturer's recommendations to assure correct counterbalancing of the slide attachment (upper die) weight for all operations performed on presses used in the PSDI mode. The validation organization or validating laboratory shall have a follow-up system for inspecting or testing manufacturer's production of design certified/validated PSDI safety system components and subassemblies where deemed appropriate by the validation organization. This is an automated process for 20), and the openings shall be not greater than three-eighths inch. (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. (See paragraph (d)(6) of this section.). No changes found for this content after 1/03/2017. As a See paragraph (b) of 1910.215. (v) Adjustable guard to be used for starting engine or for running adjustment may be provided at the flywheel of gas or oil engines. The hood shall be constructed in such a manner and of such material that it will protect the operator from flying splinters and broken saw teeth. (1) Each swing cutoff saw shall be provided with a hood that will completely enclose the upper half of the saw, the arbor end, and the point of operation at all positions of the saw. (11) Band type guards - general specifications. These guards shall effectively prevent the hands or fingers of the operator from coming in contact with the nip points. (3) Broken pulleys. The validation organization or the validating laboratory shall own a registered certification/validation mark or logo. This responsibility includes: (i) Establishing periodic and regular maintenance safety checks and keeping certification records of these inspections which include the date of inspection, the signature of the person who performed the inspection and the serial number, or other identifier, for the forging machine which was inspected. Integrated Tests Certification/Validation. (ix) The control design shall preclude any movement of the slide caused by operation of power on, power off, or selector switches, or from checks for proper operations as required by paragraph (h)(6)(xiv) of this section. 2 For wheels under 114 inch thick F dimension shall not exceed 40 percent of wheel thickness. No extra microswitches or interlocking sensors would be required. This exception also is referred to as the "minor servicing exception." The Federal Register notice of preliminary decision will provide a period of not less than 60 calendar days for the written comments on the applicant's fulfillment of the requirements for recognition. Reaction time means the time, in seconds, it takes the signal, required to activate/deactivate the system, to travel through the system, measured from the time of signal initiation to the time the function being measured is completed. Types of Tests Acceptable for Certification/Validation. Push sticks or push blocks shall be provided at the work place in the several sizes and types suitable for the work to be done. OSHA 29 CFR 1910.147 outlines "Alternative Protection Measure" procedures that can result in increased efficiency without compromising the safety of the operation. Belt shifters, clutches, shippers, poles, perches, and fasteners -. 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. Side grinding wheel having a diameter, thickness and hole with one side straight or flat and the opposite side recessed. (h) Modified types 6 and 11 wheels (terrazzo). (1) Veneer slicer knives shall be guarded to prevent accidental contact with knife edge, at both front and rear. Air controlling equipment shall be protected against foreign material and water entering the pneumatic system of the press. 1. (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. The certification/validation process should also confirm that residual hazards identified by operational analysis are addressed by warning, labeling safety instructions or other appropriate means. 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.

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