Belts which of necessity must be shifted by hand and belts within seven (7) feet of the floor or working platform which are not guarded in accordance with this section shall not be fastened with metal in any case, nor with any other fastening which by construction or wear will constitute an accident hazard. 1910.219 (a) (1) This section covers all types and shapes of power-transmission belts, except the following when operating at two hundred and fifty (250) feet per minute or less: 1910.219 (a) (1) (i) Flat belts one (1) inch or less in width, 1910.219 (a) (1) (ii) (6) Tonnage, stroke, and weight designation. A U type guard is permissible. (7) Feeder attachments shall have the feed rolls or other moving parts so covered or guarded as to protect the operator from hazardous points.
Guarding Floors, Stairs, & Other Openings - Safety Checklist Program Grinding wheels shall fit freely on the spindle and remain free under all grinding conditions. All points not readily accessible shall have oil feed tubes if lubricant is to be added while machinery is in motion. (2) Brakes. (51) Slide means the main reciprocating press member. The validation organization may charge any complainant the reasonable charge for repeating tests needed for the resolution of disputes. (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. These guards shall cover at least the unused part of the periphery of the cutting head. The certification/validation process includes two stages. (i) Projecting shaft ends shall present a smooth edge and end and shall not project more than one-half the diameter of the shaft unless guarded by nonrotating caps or safety sleeves. 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. Sec. 1910.334 Use of equipment. c. Its employees are secure from discharge resulting from pressures from manufacturers, suppliers, vendors, employers or employee representatives. The clearance between the edge of the rear table and the cutter head shall be not more than one-eighth inch. Shaft couplings shall be so constructed as to present no hazard from bolts, nuts, setscrews, or revolving surfaces. (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. No changes found for this content after 1/03/2017. Mills and calenders in the rubber and plastics industries. (2) Hydraulic forging presses. Further, each operator shall be provided with a set-up/reset means that meets the requirements of paragraph (h)(6) of this section, and which must be actuated to initiate operation of the press in the PSDI mode. (vi) Equipment shall be kept clean, particularly from accumulations of yellow lead oxide. (3) Training of maintenance personnel. It is recommended, however, that no projecting setscrews or oilcups be used in any revolving pulley or part of machinery. Limitation: These wheels shall be mounted only with a special tapered flange. It should also be noted that organic bonded wheels do not emit the same clear metallic ring as do vitrified and silicate wheels. Each manufacturer supplying parts, components, subsystems, and assemblies needs to maintain the quality of the product, and each employer needs to maintain the system in a non-degraded condition. Limitation: Rim height, T dimension, is generally equal to or greater than rim thickness, W dimension. Each time the operational conditions are significantly changed (including environmental, application or facility changes, but excluding such changes as die changes or press relocations not involving revision to the safety system); c. When a failure of a significant component has occurred or a change has been made which may affect safety; or. Showing movable guard with size of opening correct for full size wheel but too large for smaller wheels. The removal of a hand from any control button shall cause the slide to stop. A minimum object sensitivity of one and one-fourth inches (31.75 mm) means that a one and one-fourth inch (31.75 mm) diameter object will be continuously detected at all locations in the sensing field. is available with paragraph structure matching the official CFR
California Code of Regulations, Title 8, Section 3999. Conveyors. It shall be of sufficient width to provide adequate stiffness or rigidity to resist any reasonable side thrust or blow tending to bend or throw it out of position. (8) Surface feet per minute (s.f.p.m.) Shall have legal authority to perform the validation of certification; 2. 1910.1 Purpose and scope. (g) Reports of injuries to employees operating mechanical power presses. When refacing or truing, care shall be exercised to make sure that proper relief and rigidity is maintained as specified in paragraphs (c) (2) and (5) of this section and they shall be replaced when they do not conform to these subparagraphs and Table O-4, Figure O-30, Table O-5, Figure O-31, Table O-6, Figure O-32, and Table O-8, Figure O-35. Pulleys with cracks, or pieces broken out of rims, shall not be used. The current OSHA standard for safe distance as a function of opening size is set forth in Table O-10 of OSHA 29 CFR 1910.217 - Mechanical Power Presses. Pulleys intended to operate at rim speed in excess of manufacturers normal recommendations shall be specially designed and carefully balanced for the speed at which they are to operate. 1910.1053 Respirable crystalline silica. 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. a. (57) Two-hand trip means a clutch actuating means requiring the concurrent use of both hands of the operator to trip the press. (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. They shall be continuous, the ends being either riveted, bolted, or welded together in such a manner as to leave the inside free from projections. Each time the systems hardware is significantly changed, modified, or refurbished; b. d. When one year has elapsed since the installation certification/validation or the last recertification/revalidation. All applications submitted will be accepted by OSHA, and their receipt acknowledged in writing. Where guard is exposed to contact with moving equipment additional strength may be necessary. Its hood shall be so designed that it will automatically cover the lower portion of the blade, so that when the saw is returned to the back of the table the hood will rise on top of the fence, and when the saw is moved forward the hood will drop on top of and remain in contact with the table or material being cut. Dimensions of such flanges shall never be less than indicated.
Guarding. The validation organization shall in its installation validation, state that in what circumstances, if any, the employer has advance approval for adjustment, when prior oral approval is appropriate and when prior approval must be in writing. 1. Blocks or wedges shall be made of material the strength and construction of which should meet or exceed the specifications and dimensions shown in Table O-11. (3) Auxiliary equipment. 1910.137 Electrical protective equipment. If no exceptions are filed, this is the final decision of the Department of Labor. Gears shall be guarded in accordance with one of the following methods: Hand-operated gears. (c) The safety distance (Dm) between the two hand trip and the point of operation shall be greater than the distance determined by the following formula: Dm = minimum safety distance (inches); 63 inches/second = hand speed constant; Tm = the maximum time the press takes for the die closure after it has been tripped (seconds). of this appendix, above, not less than 180 calendar days, nor more than one year, before the expiration date of its current recognition. 1910.423 Post-dive procedures. It is free of direct influence or control by manufacturers, suppliers, vendors, representatives of employers and employees, and employer or employee organizations; and. This should enhance the reliability of the device and ensure that it remains operable. A sound and undamaged wheel will give a clear metallic tone. The guard shall be such that it does not offer an accident hazard in itself. Malleable iron (min. 1926.555 (a) (1) Means for stopping the motor or engine shall be provided at the operator's station. (2) Arbors and mandrels shall be constructed so as to have firm and secure bearing and be free from play. (i) The operator training required by paragraph (f)(2) of this section shall be provided to the employee before the employee initially operates the press and as needed to maintain competence, but not less than annually thereafter. The most recent records shall be made available to OSHA upon request. (i) Shafting shall be kept in alignment, free from rust and excess oil or grease. (1) Antirepeat means the part of the clutch/brake control system designed to limit the press to a single stroke if the tripping means is held operated. Both types are reinforced, organic bonded wheels having offset hubs which permit side and peripheral grinding operations without interference with the mounting. Natural sandstone wheels and metal, wooden, cloth, or paper discs, having a layer of abrasive on the surface are not covered by this section. Where brake springs are externally accessible, lock nuts or other means may be provided to reduce the possibility of backing off of the compression nut which holds the springs in place. (1) Inspection and maintenance records. The areas covered by this set of standards include: OSHA does not have a standard that sets a maximum limit on how much weight a person may lift or carry. If the frame of the belt shifter does not adequately guard the nip point of the belt and pulley, the nip point shall be further protected by means of a vertical guard placed in front of the pulley and extending at least to the top of the largest step of the cone. 6.a. The employer shall certify that the PSDI safety system has been design certified and validated, that the installation meets the operational and environmental requirements specified by the manufacturer, that the installation drawings are accurate, and that the installation meets the requirements of 29 CFR 1910.217 (a) through (h) and this appendix A. 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. (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. (d) Fluid compatability with other materials, (d) Material stress tolerances and limits, (e) Stability to long term power fluctuations, (g) Repeatability of measured parameter without inadvertent initiation of a press stroke, (h) Operational life of components in cycles, hours, or both, (1) Specific operational wave lengths; and. If the safeguard is not described in this section, give a complete description. The manufacturer shall certify and the OSHA-recognized third-party validation organization shall validate that: (a) The design of components, subsystems, software and assemblies meets OSHA performance requirements and are ready for the intended use; and. to 16,5 S.F.P.M.1. Conveyor Safety When used incorrectly, they can be dangerous. (ii) The employer shall certify that employees have been trained by preparing a certification record which includes the identity of the person trained, the signature of the employer or the person who conducted the training, and the date the training was completed. It is recommended that old installations be changed to conform to this rule. (2) Safety trip, side.
3M Protecta Fall Protection AD120BC Rebel Self-Retracting Lifeline 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. 1910.67 Vehicle-mounted elevating and rotating work platforms. All surrounding floors shall be kept in good condition and free from obstructions, grease, oil, and water. A notification of the final decision shall be published in the Federal Register. will also bring you to search results. Three months prior to the operation of any alternative system, the employer must notify the OSHA Directorate of Safety Standards Programs of the name of the system to be installed, the manufacturer and the OSHA-recognized third-party validation organization immediately. When the periphery of the blades of a fan is less than seven (7) feet above the floor or working level, the blades shall be guarded. Materials should be placed on the conveyor so that they will ride safely. If the frame of the belt shifter does not adequately guard the nip point of the belt and pulley, the nip point shall be further protected by means of a vertical guard placed in front of the pulley and extending at least to the top of the largest step of the cone. Higher pressures may be permitted, however, to increase clutch torque to free jammed dies, provided positive measures are provided to prevent the higher pressure at other times. Inclined and vertical shafts, particularly inclined idler shafts, shall be securely held in position against endwise thrust. (1) Use of lead. 1 Note: Must be large enough to extend beyond the bushing. Preliminary approval. (iv) Air counterbalance cylinders shall have adequate capability to hold the slide and its attachments at any point in stroke, without brake applied. (7) Driving flange. Band type guards shall conform to the following general specifications: (i) The bands shall be of steel plate or other material of equal or greater strength. The employer shall: (i) Use dies and operating methods designed to control or eliminate hazards to operating personnel, and. means the distance in feet any one abrasive grain on the peripheral surface of a grinding wheel travels in 1 minute. (c) The device 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 the initiation of a successive stroke until the failure is corrected. Certification/Validation Program Level of Risk Evaluation Requirements. (14) Operators shall not ride the carriage of a veneer slicer. (3) Limit chains or other equally effective devices shall be provided to prevent the saw from swinging beyond the front or back edges of the table, or beyond a forward position where the gullets of the lowest saw teeth will rise above the table top. [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. (2) Push stick means a narrow strip of wood or other soft material with a notch cut into one end and which is used to push short pieces of material through saws. ), (4) Cylindrical grinders. (See Figures O-8 and O-9. The bottom of the guard shall come to within three-eighths inch of a plane formed by bottom or contact face of the feed roll where it touches the stock. Rivet making with less than 1-inch diameter is usually a cold forging operation, and therefore not included in this subpart. When removing material off conveyors, workers should remain alert and safeguard their hands; the moving material can create pinch points. (3) Feed rolls of band resaws shall be protected with a suitable guard to prevent the hands of the operator from coming in contact with the in-running rolls at any point. learn more about the process here. (ii) Straight flanges of the adaptor or sleeve type (Table O-7 and Figures O-33 and O-34) shall be undercut so that there will be no bearing on the sides of the wheel within one-eighth inch of the arbor hole. (iii) The band shall be of sufficient width and its position kept so adjusted that at no time will the wheel protrude beyond the edge of the band a distance greater than that indicated in Figure O-29 and in Table O-2 or the wall thickness (W), whichever is smaller. However, the guarding of these gears is highly recommended. Subpart EExit Routes and Emergency Planning, 1910.33 Table of contents. (c) The control system shall incorporate an antirepeat feature. Content of application. 1910.39 Fire prevention plans. 1910.152 [Reserved]. 1. Instructions for use of the test rod shall be noted on a label affixed to the presence sensing device. Machinery shall be oiled when not in motion, wherever possible. Gears. The certification/validation process shall utilize an independent third-party validation organization recognized by OSHA in accordance with the requirements specified in appendix C of this section. of this appendix, the following procedures will be used: (1) The Assistant Secretary will issue a notice of hearing before an administrative law judge of the Department of Labor pursuant to the rules specified in 29 CFR part 1905, subpart C. (2) After the hearing, pursuant to subpart C, the administrative law judge shall issue a decision (including reasons) based on the application, the supporting documentation, the staff recommendation, the public comments and the evidence submitted during the hearing (the record), stating whether it has been demonstrated, based on a preponderance of evidence, that the applicant meets the requirements for recognition. (4) This section covers the principal features with which power transmission safeguards shall comply. 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. 1910.212 General requirements for all machines. 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). 1910.1010 Benzidine. (3) Mill means a machine consisting of two adjacent metal rolls, set horizontally, which revolve in opposite directions (i.e., toward each other as viewed from above) used for the mechanical working of rubber and plastics compounds. (4) Gravity hammers mean a class of forging hammer wherein energy for forging is obtained by the mass and velocity of a freely falling ram and the attached upper die. Subpart GOccupational Health and Environmental Control. Displaying title 29, up to date as of 3/02/2023. (ii) Where suspended counterweights are used and not guarded by location, they shall be so encased as to prevent accident. (iii) If the cone is located less than 3 feet from the floor or working platform, the cone pulley and belt shall be guarded to a height of 3 feet regardless of whether the belt is endless or laced with rawhide. Table O-1 - Minimum Basic Thickness for Peripheral and Side Members for Safety Guards Used With Cutting-Off Wheels, Table O-3 - Guide for Construction of Band Type Guards, Table O-5 - Minimum Dimensions for Straight Adaptor Flange - for Organic Bonded Wheels Over 114 Inches Thick1. Conveyor safety hazards are varied, and the most common type is contact with the moving belt or other parts. If the deficiencies are not corrected, OSHA may revoke recognition, effective in 60 days, unless the validation organization requests a hearing within that time. 1910.161 Fixed extinguishing systems, dry chemical. If the press has a slide counterbalance system, it is important that the counterbalance be adjusted correctly for upper die weight according to the manufacturer's instructions. Based on this, the Assistant Secretary shall issue the final decision (including reasons) of the Department of Labor stating whether the applicant has demonstrated by a preponderance of evidence that it meets the requirements for recognition. (1) Each circular resaw shall be guarded by a hood or shield of metal above the saw. 1910.1052 Methylene chloride. (1) The employer shall report, within 30 days of the occurrence, all point-of-operation injuries to operators or other employees to either the Director of the Directorate of Standards and Guidance at OSHA, U.S. Department of Labor, Washington, DC 20210 or electronically at http://www.osha.gov/pls/oshaweb/mechanical.html; or to the State Agency administering a plan approved by the Assistant Secretary of Labor for Occupational Safety and Health.