We recommend you directly contact the agency responsible for the content in question. 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. 2. Forging hammers, counterblow equipment and high-energy-rate forging machines impart impact to the workpiece, while most other types of forging equipment impart squeeze pressure in shaping the stock. (j) Bearings and facilities for oiling. (1) Each circular hand-fed ripsaw shall be guarded by a hood which shall completely enclose that portion of the saw above the table and that portion of the saw above the material being cut. Choosing an item from OSHA General Industry Machinery and Machine Guarding 1910 - ISHN (3) Vibration of 45G for one millisecond per stroke when the item is to be mounted on the press frame. Calculating Safe Mounting Distances for Safeguards | EHS Today 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. (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. Malleable iron (min. Reactivation of the clutch shall require restoration of normal air supply and use of the tripping mechanism(s). Where suspended counterweights are used and not guarded by location, they shall be so encased as to prevent accident. (ii) Table O-5, and Table O-7 and Figures O-31, O-33, O-34 show minimum dimensions for straight adaptor flanges for use with wheels having holes larger than the spindle. 1910.66 Powered platforms for building maintenance. 1910.1029 Coke oven emissions. PART 1910OCCUPATIONAL SAFETY AND HEALTH STANDARDS. 553. Broken pulleys. An OSHA catwalk serviced by a stairway is a type of stair landing. Regulations Respecting Occupational Health and Safety, Decree 885-2001, 5-2.1, r.19.01, July 2001. Where a disk is used, the keys or other dangerous projections not covered by disk shall be cut off or covered. Grinding is performed on the rim face only, dimension W. Cylinder wheels may be plain, plate mounted, inserted nut, or of the projecting stud type. (11) Rivet making machines mean the same as upsetters and boltheaders when producing rivets with stock diameter of 1-inch or more. When repairing or cleaning a conveyor, all equipment must be locked or blocked and operating controls tagged. (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. (1) Boltheading. (11) Hydraulic equipment. The validation organization and validating laboratory shall have adequate administrative and technical staffs to conduct the validation of the certification of PSDI safety systems. The safety tripping devices shall be located within reach of the operator and the bite. The sides of the lower exposed portion of the blade shall be guarded to the full diameter of the blade by a device that will automatically adjust itself to the thickness of the stock and remain in contact with stock being cut to give maximum protection possible for the operation being performed. (iv) Periodic inspections of clutch and brake mechanisms shall be performed to assure they are in proper operating condition. (62) Safety system means the integrated total system, including the pertinent elements of the press, the controls, the safeguarding and any required supplemental safeguarding, and their interfaces with the operator, and the environment, designed, constructed and arranged to operate together as a unit, such that a single failure or single operating error will not cause injury to personnel due to point of operation hazards. Side grinding wheel having a diameter, thickness and wall - wheel is mounted on the diameter. (b) A Type B gate or movable barrier device shall protect the operator in the manner specified in paragraph (c)(3)(i)(g) of this section. (ix) Diamond wheels, except certain vitrified diamond wheels. Appendix A to Subpart T of Part 1910Examples of Conditions Which May Restrict or Limit Exposure to Hyperbaric Conditions Workers who operate and maintain machinery suffer approximately 18,000 amputations, lacerations, crushing injuries, abrasions, and over 800 deaths per year. All measurements on mills and calenders shall be taken with the rolls running empty at maximum operating speed. 1910.334 Use of equipment. (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. A hearing will be granted to an objecting member of the public only if evidence of failure to meet the requirements of this appendix is supplied to OSHA. Preliminary disapproval. This portion of the guard shall be self-adjusting to raise and lower with the guide. Selection of PSDI mode and the number of interruptions/withdrawals of the light sensing field required to initiate a press cycle shall be by means capable of supervision by the employer. (ii) Type 27 and Type 28 wheels, because of their shape and usage, require specially designed adaptors. They shall be designed to provide adequate holding power for all the thicknesses of material being cut. If center to center distance between pulleys is ten (10) feet or more. (ii) 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.). (xiv) The control system shall perform checks for proper operation of all cycle control logic element switches and contacts at least once each cycle. (b) Abrasive discs (inserted nut, inserted washer, and projecting stud type). (4) Flywheels and bearings. (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. (18) Die means the tooling used in a press for cutting or forming material. a. Appendix C to Subpart L of Part 1910Fire Protection References For Further Information 12-71 (36 FR 8754), 8-76 (41 FR 25059), 9-83 (48 FR 35736), 1-90 (55 FR 9033), 5-2002 (67 FR 65008), or 1-2012 (77 FR 3912), as applicable; 20 CFR part 1911. 1910.94 Ventilation. When required by paragraph (c)(5) of this section, the control system shall be constructed so that a failure within the system does not prevent the normal stopping action from being applied to the press when required, but does prevent initiation of a successive stroke until the failure is corrected. The spreader shall be slightly thinner than the saw kerf and slightly thicker than the saw disk. (1) Each hand-fed planer and jointer with horizontal head shall be equipped with a cylindrical cutting head, the knife projection of which shall not exceed one-eighth inch beyond the cylindrical body of the head. Overhead-rope and chain-drive guard construction shall conform to the rules for overhead-belt guard. above floor level. (1) Hazards to personnel associated with broken or falling machine components. (2) Belt shifter means a device for mechanically shifting belts from tight to loose pulleys or vice versa, or for shifting belts on cones of speed pulleys. They shall be of rigid construction and designed to be adjustable to compensate for wheel wear. C. Analyses may be used for certification/validation when existing data are available or when test is not feasible. (12) Guard design specifications. Before proposing to revoke recognition, the Agency will notify the recognized validation organization of the basis of the proposed revocation and will allow rebuttal or correction of the alleged deficiencies. 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. (12) Pressure vessels. (a) 24-inch diameter wheel, 1,000 revolutions per minute. Minimum requirements. Steel castings (min. (3) Manually operated controls. (v) Adjustable guard to be used for starting engine or for running adjustment may be provided at the flywheel of gas or oil engines. (ii) Once the PSDI safety system has been certified/validated, adjustment of the brake monitor shall not be done without prior approval of the validation organization for both the brake monitor adjustment and the corresponding adjustment of the safety distance. Engine rooms. (i) Pulleys shall be kept in proper alignment to prevent belts from running off. (2) Each drum sanding machine shall have an exhaust hood, or other guard if no exhaust system is required, so arranged as to enclose the revolving drum, except for that portion of the drum above the table, if a table is used, which may be necessary and convenient for the application of the material to be finished. 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. A U type guard is permissible. A recognized validation organization may voluntarily terminate its recognition, either in its entirety or with respect to any area covered in its recognition, by giving written notice to OSHA at any time. (vi) Equipment shall be kept clean, particularly from accumulations of yellow lead oxide. 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. (1) Feed rolls of self-feed sanding machines shall be protected with a semicylindrical guard to prevent the hands of the operator from coming in contact with the in-running rolls at any point. General. The validation organization and the validating laboratory shall be adequately staffed by personnel who are qualified by technical training and/or experience to conduct the validation of the certification of PSDI safety systems. [39 FR 23502, June 27, 1974, as amended at 39 FR 41846, Dec. 3, 1974; 40 FR 3982, Jan. 27, 1975; 43 FR 49750, Oct. 24, 1978; 45 FR 8594, Feb. 8, 1980; 49 FR 18295, Apr. (vii) Means used to actuate press stroke (foot trip, foot control, hand trip, hand control, or other). (viii) Those clutch/brake control systems which contain both single and continuous functions shall be designed so that completion of continuous circuits may be supervised by the employer. Vertical and inclined belts (paragraphs (e) (3) and (4) of this section) if not more than two and one-half (2 12) 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. In engine rooms a guardrail, preferably with toeboard, may be used instead of the guard required by paragraph (k)(1) of this section, provided such a room is occupied only by engine room attendants. The unused run of the sanding belt shall be guarded against accidental contact. (3) New Design Certification/Validation. This hood or shield shall be so designed as to guard against danger from flying splinters or broken saw teeth. ), (9) Exposure adjustment. (ii) Inspection shall be made of belts, lacings, and fasteners and such equipment kept in good repair. Tests which are conducted by the manufacturers of electrical components to establish stress, life, temperature and loading limits must be tests which are in compliance with the provisions of the National Electrical Code. (v) Air counterbalance cylinders shall incorporate means to prevent failure of capability (sudden loss of pressure) in event of air supply failure. (7) Type 27A depressed center, cutting-off wheels mean wheels having diameter, thickness, and hole size dimensions. 49 CFR 172.101 1910.110 Storage and handling of liquefied petroleum gases. (b) Each two hand control shall meet the construction requirements of paragraph (b)(7)(v) of this section. 1910.108 [Reserved] (4) The Assistant Secretary shall review the record, the decision by the administrative law judge, and the exceptions. (a) Attachments shall be connected to and operated only by the press slide or upper die. 1910.158 Standpipe and hose systems. Table O-9 - Minimum Basic Thicknesses of Peripheral and Side Members for Safety Guards. This subdivision does not apply to flywheels with solid web centers. Guarding. 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. (d) Design, construction, setting and feeding of dies -. Power-transmission apparatus located in basements. It is necessary to maintain clearance between the wheel side and the guard. This exposure shall begin at a point not more than 65 above the horizontal plane of the wheel spindle. (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. (4) Shot blast. This distance (three-eighths inch) may be increased to three-fourths inch, provided the lead edge of the hood is extended to be not less than 512 inches in front of the nip point between the front roll and the work. (vii) Where presence sensing device location is adjustable, adjustment shall require the use of a special tool available only to authorized persons. The Occupational Safety and Health Administration's (OSHA's) requirements for machine guarding are found in 29 Code of Federal Regulations (CFR) 1910 Subpart O, Machinery and Machine Guarding as detailed below; 1910.211 Definitions; 1910.212 General requirements for all machines; . An upper and a lower die make a complete set. Conveyor Safety When used incorrectly, they can be dangerous. (2) Guard design. (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. The various openings are such that for average size hands an operator's fingers won't reach the point of operation. The cables shall not be more than 72 inches above the level on which the operator stands. (a) All guards shall be rigidly braced every three (3) feet or fractional part of their height to some fixed part of machinery or building structure. (5) Modified types 6 and 11 wheels (terrazzo) mean some type 6 and 11 cup wheels used in the terrazzo trade having tapered K dimensions to match a special tapered flange furnished by the machine builder. 1910.401 Scope and application. tensile strength 60,000 p.s.i.) (56) Turnover bar means a bar used in die setting to manually turn the crankshaft of the press. d. When one year has elapsed since the installation certification/validation or the last recertification/revalidation. Where panels are fitted with expanded metal or wire mesh the middle rails may be omitted. 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. 2. 4. If you have questions or comments regarding a published document please The certification/validation report shall include the following: b. (5) Exposure of blades. (g) Enclosing the point of operation before a press stroke can be initiated, so as to prevent an operator from reaching into the point of operation prior to die closure or prior to cessation of slide motion during the downward stroke. (xv) Selection of bar operation shall be by means capable of being supervised by the employer. (4) Arbors of all circular saws shall be free from play. 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. (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. 1. Recording of inspections shall be in the form of a certification record which includes the date the inspection was performed, the signature of the person who performed the inspection and the serial number, or other identifier, of the equipment inspected. (4) Each hand-fed jointer with horizontal cutting head shall have a guard which will cover the section of the head back of the gage or fence. (31) Foot pedal means the foot operated lever designed to operate the mechanical linkage that trips a full revolution clutch. (xi) 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 value mechanism, and to inhibit further operation if such failure does occur. This requirement shall not apply to natural sandstone wheels or metal, wooden, cloth, or paper discs, having a layer of abrasive on the surface. 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. (5) Power-driven guillotine veneer cutters, except continuous feed trimmers, shall be equipped with: (i) Starting devices which require the simultaneous action of both hands to start the cutting motion and of at least one hand on a control during the complete stroke of the knife; or. (1) Type 1 straight wheels means wheels having diameter, thickness, and hole size dimensions, and they should be used only on the periphery. Guarding Floor and Wall Openings and Holes OSHA Standard 1910.23 2 Overview This is a condensation of Standard 1910.23 of the Occupational Safety and Health Act. 2. OSHA Conveyor Standards 1926.555 (a) General requirements. OSHA Regulations on Long Hair Around Machinery - Career Trend Belt shippers and shipper poles. 1910.164 Fire detection systems. EN 618:2002+A1:2010, Continuous handling equipment and systems - Safety and EMC requirements for equipment for mechanical handling of bulk materials except fixed belt conveyors EN 619:2002+A1:2010, Continuous handling equipment and systems - Safety and EMC requirements for equipment for mechanical handling of unit loads 1910.177 Servicing multi-piece and single piece rim wheels. 1/1.1 OSHA 1926 and 1910 Standards Books | OSHA - OSHA Education Center The guard shall prevent opening of the interlocked section and reaching into the point of operation prior to die closure or prior to the cessation of slide motion. (1) Belts include all power transmission belts, such as flat belts, round belts, V-belts, etc., unless otherwise specified. 1910.505Severability. The certification/validation of safety systems for PSDI shall consider the press, controls, safeguards, operator, and environment as an integrated system which shall comply with all of the requirements in 29 CFR 1910.217 (a) through (h) and this appendix A. Final decision by Assistant Secretary - a. Filing office location. Appendix D to Subpart L of Part 1910Availability of Publications Incorporated by Reference in Section 1910.156 Fire Brigades (x) Hand tools. If you work for a Federal agency, use this drafting (1) Mechanical forging presses. 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 . A PSDI safety system which has received installation certification/validation shall undergo recertification/revalidation the earlier of: a. (2) Hand-operated gears. See paragraph (b) of 1910.215. (c) Abrasive discs (inserted nut, inserted washer and projecting stud type). (viii) A scale guard of substantial construction shall be provided at the back of every hammer, so arranged as to stop flying scale. The validation organization shall make available upon request a list of PSDI safety systems which have been certified/validated by the program. (ii) Safety triprod. The timer shall be manually adjustable, to a maximum time of 30 seconds. (6) Part revolution clutch means a type of clutch that can be disengaged at any point before the crankshaft has completed a full revolution and the press slide a full stroke. 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. 1910.132 General requirements. Blotters need not be used with the following types of wheels: (ii) Abrasive discs (inserted nut, inserted washer, and projecting-stud type). Unless the distance to the nearest fixed pulley, clutch, or hanger exceeds the width of the belt used, a guide shall be provided to prevent the belt from leaving the pulley on the side where insufficient clearance exists. The recognition of each validation organization will be valid for five years, unless terminated before or renewed after the expiration of the period. (12) The knife blade of jointers shall be so installed and adjusted that it does not protrude more than one-eighth inch beyond the cylindrical body of the head. 1910.146 Permit-required confined spaces. Vertical belts. Safety guards of the types described in subparagraphs (3) and (4) of this paragraph, where the operator stands in front of the opening, shall be constructed so that the peripheral protecting member can be adjusted to the constantly decreasing diameter of the wheel. 1910.35 Compliance with alternate exit-route codes. 1910.122 Table of contents. (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. (ii) Tap wheels about 45 each side of the vertical centerline and about 1 or 2 inches from the periphery as indicated by the spots in Figure O-25 and Figure O-26. PART 1910 - OCCUPATIONAL SAFETY AND HEALTH STANDARDS Source: 39 FR 23502, June 27, 1974, unless otherwise noted. 2. (iii) Table O-8 and Figure O-35 show minimum dimensions for straight flanges that are an integral part of wheel sleeves which are frequently used on precision grinding machines. screw conveyors and the periphery of an abrasive . 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). 1910.28 Duty to have fall protection and falling object protection. [39 FR 23502, June 27, 1974, as amended at 49 FR 5323, Feb. 10, 1984; 51 FR 34561, Sept. 29, 1986; 61 FR 9240, Mar. 1910.1 Purpose and scope. 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. to 16,5 S.F.P.M.1. result, it may not include the most recent changes applied to the CFR. 1. Occupational Safety and Health Administration, Outreach Training Program (10- and 30-hour Cards), OSHA Training Institute Education Centers, Severe Storm and Flood Recovery Assistance. Operation of the Inch operating means engages the driving clutch so that a small portion of one stroke or indefinite stroking can occur, depending upon the length of time the Inch operating means is held operated. 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. (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.
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