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. ANSI B20.1-1976 was an extensive revision from the 1957 code. This is known as the Ring Test. The adjustments shall be made before performing the stopping time measurements required by paragraphs (h)(2)(ii), (h)(5)(iii), and (h)(9)(v) of this section. Die-setting and maintenance procedures shall comply with paragraphs (a) through (g) of this section, and shall not be done in the PSDI mode. (g) Reports of injuries to employees operating mechanical power presses. (2) Each self-feed circular ripsaw shall be provided with sectional non-kickback fingers for the full width of the feed rolls. The control system shall require that each sensing field be interrupted the selected number of times prior to initiating a stroke. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. 1926.555 (a) (5) Where a conveyor passes over work areas, aisles, or thoroughfares, suitable guards shall be provided to protect employees required to work below the conveyors. (ix) A scale guard of substantial construction shall be provided at the back of every press, so arranged as to stop flying scale. (x) All components and subsystems of the control system shall be designed to operate together to provide total control system compliance with the requirements of this section. Please do not provide confidential b. (i) A suitable enclosure shall be provided to prevent damaged or detached boards from falling. 9. 1910.214 Cooperage machinery. 1910.25 Stairways. 1910.306 Specific purpose equipment and installations. 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. 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. [39 FR 23502, June 27, 1974, as amended at 39 FR 41846, Dec. 3, 1974; 53 FR 8353, Mar. Even though not employing a clutch, direct drives match the operational characteristics of part revolution clutches because the driving power may be disengaged during the stroke of the press. 1910.98 Effective dates. (4) Flywheels and bearings. (See paragraph (d)(5) of this section.). 1910.38 Emergency action plans. The failure shall be indicated by the system. Surface Feet per minute .262 24 1,000 = 6,288 s.f.p.m. (9) Continuous means uninterrupted multiple strokes of the slide without intervening stops (or other clutch control action) at the end of individual strokes. Appendix C to Subpart L of Part 1910Fire Protection References For Further Information (1) General requirements. (7) Direct drive means the type of driving arrangement wherein no clutch is used; coupling and decoupling of the driving torque is accomplished by energization and deenergization of a motor. (i) Limitation: Cutting off wheels are recommended only for use on specially designed and fully guarded machines and are subject to the following maximum thickness and hole size limitations. (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. (b) Portable wheels with threaded inserts or projecting studs. (iii) Types 16, 17, 18, 18R, and 19 cones, plugs, and threaded hole pot balls where the work offers protection. (3) Flanges. Grade V60-30. The provisions of paragraph (h) of this section shall apply to rivet making. (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. (iv) Air counterbalance cylinders shall have adequate capability to hold the slide and its attachments at any point in stroke, without brake applied. A means of air lubrication shall be provided when needed. This subparagraph does not apply to manually operated sprockets. (i) A two-hand trip shall have the individual operator's hand controls protected against unintentional operation and have the individual operator's hand controls arranged by design and construction and/or separation to require the use of both hands to trip the press and use a control arrangement requiring concurrent operation of the individual operator's hand controls. 1910.213 Woodworking machinery requirements. When a press is equipped for PSDI operation, it is recommended that the presence sensing device be active as a guarding device in other production modes. A notification of the final decision shall be published in the Federal Register. (ii) An automatic guard which will remove the hands of the operator from the danger zone at every descent of the blade, used in conjunction with one-hand starting devices which require two distinct movements of the device to start the cutting motion, and so designed as to return positively to the nonstarting position after each complete cycle of the knife. 1910.30 Training requirements. 1. However, in determining eligibility for a foreign-based third-party validation organization, OSHA shall take into consideration whether there is reciprocity of treatment by the foreign government after consultation with relevant U.S. government agencies. This web site is designed for the current versions of 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. (e) Cylinders, cup, or segmental wheels that are mounted in chucks. Scrap cutters used in conjunction with scrap handling systems shall be safeguarded in accordance with paragraph (c) of this section and with 1910.219. [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. (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. All mechanical power transmission apparatus located in basements, towers, and rooms used exclusively for power transmission equipment shall be guarded in accordance with this section, except that the requirements for safeguarding belts, pulleys, and shafting need not be complied with when the following requirements are met: (i) The basement, tower, or room occupied by transmission equipment is locked against unauthorized entrance. (59) Control system means sensors, manual input and mode selection elements, interlocking and decision-making circuitry, and output elements to the press operating mechanism. (4) The mention of specific machines in paragraphs (a) thru (q) and this paragraph (r) of this section, inclusive, is not intended to exclude other woodworking machines from the requirement that suitable guards and exhaust hoods be provided to reduce to a minimum the hazard due to the point of operation of such machines. The machine guarding standard, 29 Code of Federal Regulations (CFR 1910.212), always seems to make OSHA's Top 10 Most Frequently Cited list. Table O-6 - Minimum Dimensions for Straight Relieved Flanges1. 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. a. The following Occupational Safety and Health Administration (OSHA) laws and regulations are most commonly applied to industrial machinery: OSHA 29 CFR 1910 General Industry Regulations OSHA 29 CFR 1910.211 Definitions OSHA 29 CFR 1910.212 General Requirements for Guarding All Machines OSHA 29 CFR 1910.213 Woodworking Machinery Requirements (i) Presses operated in the PSDI mode shall be equipped with a brake monitor that meets the requirements of paragraphs (b)(13) and (b)(14) of this section. 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. Class 20. An application may be revised by an applicant at any time prior to the completion of the final staff recommendation. The adjustment shall be done under the supervision of an authorized person whose qualifications include knowledge of safety distance requirements and experience with the brake system and its adjustment. The maximum exposure angles specified in paragraphs (b) (3) through (8) of this section shall not be exceeded. (viii) The two hand trip device shall protect the operator as specified in paragraph (c)(3)(i)(e) of this section. (eg: 10. If such a guard is constructed of sheet metal, the material used shall be not less than one-sixteenth inch in thickness; and if cast iron is used, it shall not be less than three-sixteenths inch in thickness. 1910.184 Slings. The ground shall be provided through use of a separate ground wire and polarized plug and receptacle. (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. This exception also is referred to as the "minor servicing exception." (ii) Scheduling and recording the inspection of guards and point of operation protection devices at frequent and regular intervals. Dimensions of such adaptor flanges shall never be less than indicated. Appendix A to Subpart T of Part 1910Examples of Conditions Which May Restrict or Limit Exposure to Hyperbaric Conditions Adjustment of the location of the PSDI presence sensing device shall require use of a special tool available only to the authorized persons. OSHA Basics: OSHA's Parts 1910 and 1926 ; OSHA Basics: How OSHA Standards are Named and Numbered; OSHA Basics: Incorporation by Reference (IBR) OSHA Basics: The OSHA Field Operations Manual; OSHA Basics: OSHA's Small Business Handbook ; OSHA Basics: The General Duty Clause-5. The term manufacturers refers to the manufacturer of any of the components of the safety system. The adaptor nut which is less than the minimum one-third diameter of wheel fits in the depressed side of wheel to prevent interference in side grinding and serves to drive the wheel by its clamping force against the depressed portion of the back flange. above floor level. It shall automatically adjust itself to the thickness of and remain in contact with the material being cut. Certain exceptions are forging hammers made with frame mounted on the anvil; e.g., the smaller, single-frame hammers are usually made with the anvil and frame in one piece. Type 27 and Type 28 wheels shall be used only with a safety guard located between wheel and operator during use. Search & Navigation (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. 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). All power-transmission equipment shall be inspected at intervals not exceeding 60 days and be kept in good working condition at all times. (3) For the Textile Industry, because of the presence of excessive deposits of lint, which constitute a serious fire hazard, the sides and face sections only of nip-point belt and pulley guards are required, provided the guard shall extend at least six (6) inches beyond the rim of the pulley on the in-running and off-running sides of the belt and at least two (2) inches away from the rim and face of the pulley in all other directions. 1910.1008 bis-Chloromethyl ether. 20), and the openings shall be not greater than three-eighths inch. 4. (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. (iii) Modified Types 6 and 11 wheels (terrazzo) with tapered K dimension. Dimensions of such flanges shall never be less than indicated. (See Figures O-6 and O-7 and paragraph (b)(9) of this section. There are other general safety precautions which should be followed by everyone even if they dont work directly with conveyors. Mines. 1910.183 Helicopters. The penetration depth factor shall be determined from Graph h-1 using the minimum object sensitivity size. 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. The official, published CFR, is updated annually and available below under Wheels bonded with clay, glass, porcelain or related ceramic materials are characterized as vitrified bonded wheels. Hangers. (1) Safety trip control. 5. The front and back of the band wheels shall be either enclosed by solid material or by wire mesh or perforated metal. 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. 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. All abrasive wheels shall be mounted between flanges which shall not be less than one-third the diameter of the wheel. Air controlling equipment shall be protected against foreign material and water entering the pneumatic system of the press. Subpart BAdoption and Extension of Established Federal Standards. 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. (50) Single stroke mechanism means an arrangement used on a full revolution clutch to limit the travel of the slide to one complete stroke at each engagement of the clutch. Consistency of braking action is enhanced by high brake torque. (46) Press means a mechanically powered machine that shears, punches, forms or assembles metal or other material by means of cutting, shaping, or combination dies attached to slides. 1910.94 Ventilation. Broken pulleys. Appendix B to Subpart T of Part 1910Guidelines for Scientific Diving Limitation: These wheels shall be mounted only with a special tapered flange. (a) Attachments shall be connected to and operated only by the press slide or upper die. Any detected broken or unserviceable springs shall be replaced before the test is conducted. (B) The air supply for pneumatic clutch/brake control valves shall incorporate a filter, an air regulator, and, when necessary for proper operation, a lubricator. Vertical and inclined shafting seven (7) feet or less from floor or working platform, excepting maintenance runways, shall be enclosed with a stationary casing in accordance with requirements of paragraphs (m) and (o) of this section. 1910.133 Eye and face protection. Conveyors training, regulations, analysis, news, and tools - BLR (ii) The operating levers on hand-tripped presses having more than one operating station shall be interlocked to prevent the tripping of the press except by the concurrent use of all levers. Upon request, the employer must make available to that office all tests and analyses for OSHA review. Shafting under bench machines shall be enclosed by a stationary casing, or by a trough at sides and top or sides and bottom, as location requires. Publication. http://www.osha.gov/pls/oshaweb/mechanical.html. Machinery shall be oiled when not in motion, wherever possible. (25) Face of slide means the bottom surface of the slide to which the punch or upper die is generally attached. This table shows the distances that guards shall be positioned from the danger line in accordance with the required openings. Page 1 of 4 | Conveyor Hazards Safety Factsheet: Hazards of Conveyors Conveyors are used to transport materials . It shall include instruction relative to the following items for presses used in the PSDI mode. 1910.159 Automatic sprinkler systems. Nonmandatory supplementary information and guidelines relating to certification/validation of the PSDI safety system are provided to appendix B to this standard. The recognition of any validation organization will be evidenced by a letter of recognition from OSHA. (iii) All mechanical power press controls shall incorporate a type of drive motor starter that will disconnect the drive motor from the power source in event of control voltage or power source failure, and require operation of the motor start button to restart the motor when voltage conditions are restored to normal.
osha conveyor safety 1910