Bearings and facilities for oiling. Other material, designs or dimensions affording equal or superior protection are also acceptable. The use of belt poles as substitutes for mechanical shifters is not recommended. (e) Trip and emergency switches. However, where an operator must do many operations outside the press, such as lubricating, trimming, deburring, etc., a longer interval up to 30 seconds is permitted. fOSHA Conveyor Standards (1) Use of lead. Industrial/MRO/Safety; Safety & Security; Personal Protective Equipment (PPE) . (iii) Special Revolving Cup Guards which mount behind the wheel and turn with it. and fell backwards and hit my head on the frame of the conveyor . (1) General requirements. (10) Sheaves mean grooved pulleys, and shall be so classified unless used as flywheels. 1910.263 Bakery equipment. 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. (xvii) Controls with internally stored programs (e.g., mechanical, electro-mechanical, or electronic) shall meet the requirements of paragraph (b)(13) of this section, and shall default to a predetermined safe condition in the event of any single failure within the system. (19) Die builder means any person who builds dies for power presses. 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. [39 FR 23502, June 27, 1974, as amended at 43 FR 49750, Oct. 24, 1978; 49 FR 5323, Feb. 10, 1984]. (vi) The presence sensing device location shall either be set at each tool change and set-up to provide at least the minimum safety distance, or fixed in location to provide a safety distance greater than or equal to the minimum safety distance for all tooling set-ups which are to be used on that press. (11) Device means a press control or attachment that: (i) Restrains the operator from inadvertently reaching into the point of operation, or, (ii) Prevents normal press operation if the operator's hands are inadvertently within the point of operation, or, (iii) Automatically withdraws the operator's hands if the operator's hands are inadvertently within the point of operation as the dies close, or. tensile strength 20,000 p.s.i.) Broken pulleys. (4) Hand feeding tools. 3. (e) Inspection, maintenance, and modification of presses -. 1910.1029 Coke oven emissions. A test report shall be prepared for each PSDI safety system that is tested. All foot operated devices (i.e., treadles, pedals, bars, valves, and switches) shall be substantially and effectively protected from unintended operation. The maximum anticipated working pressures in any hydraulic system on a mechanical power press shall not exceed the safe working pressure rating of any component used in that system. The penetration depth factor shall be determined from Graph h-1 using the minimum object sensitivity size. (1) Each machine shall be so constructed as to be free from sensible vibration when the largest size tool is mounted and run idle at full speed. (h) Presence sensing device initiation (PSDI) -. (b) The performance of combined subsystems meets OSHA's operational requirements. Overhead rope drive and block and roller-chain-drive guards shall be not less than six (6) inches wider than the drive on each side. Type 27 and Type 28 wheels shall be used only with a safety guard located between wheel and operator during use. Blanking of the sensing field is not permitted. Blotters shall be used in accordance with paragraph (c)(6) of this section. 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. (14) No saw, cutter head, or tool collar shall be placed or mounted on a machine arbor unless the tool has been accurately machined to size and shape to fit the arbor. 1910.8 OMB control numbers under the Paperwork Reduction Act. The fourth regulation in OSHA standard 1910.178(g) requires a "conveyor, overhead hoist, or equivalent material handling equipment" to assist workers in moving forklift batteries. 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. [39 FR 23502, June 27, 1974, as amended at 43 FR 49750, Oct. 24, 1978; 43 FR 51760; Nov. 7, 1978; 49 FR 5323, Feb. 10, 1984; 61 FR 9227, March 7, 1996; 69 FR 31882, June 8, 2004], Occupational Safety & Health Administration. The intent of paragraph (h)(9)(iii) is to prohibit use of mirrors to bend a single light curtain sensing field around corners to cover more than one side of a press. 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. It would not be necessary to repeat the tests on individual safety systems of the same manufacture or design. (i) Guards for horizontal overhead belts shall run the entire length of the belt and follow the line of the pulley to the ceiling or be carried to the nearest wall, thus enclosing the belt effectively. 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. 1910.1096 Ionizing radiation. (ix) Barriers shall be fixed to the press frame or bolster to prevent personnel from passing completely through the sensing field, where safety distance or press configuration is such that personnel could pass through the PSDI presence sensing field and assume a position where the point of operation could be accessed without detection by the PSDI presence sensing device. Acceptance and field inspection. means the distance in feet any one abrasive grain on the peripheral surface of a grinding wheel travels in 1 minute. When removing material off conveyors, workers should remain alert and safeguard their hands; the moving material can create pinch points. A report shall be made of each field inspection. Learn more about the eCFR, its status, and the editorial process. d. When the change of state is motion, the measurement shall be made at the completion of the motion. (21) Die setter means an individual who places or removes dies in or from mechanical power presses, and who, as a part of his duties, makes the necessary adjustments to cause the tooling to function properly and safely. A safety triprod, cable, or wire center cord shall be provided across each pair of in-running rolls extending the length of the face of the rolls. (B) The safety distance shall be checked for compliance with (h)(9)(v) of this section. The clearance between the edge of the rear table and the cutter head shall be not more than one-eighth inch. (iii) Cast steel, or structural steel, safety guards as specified in Figures O-36 and O-37 and Table O-9 shall be used where operating speeds of wheels are faster than 8,000 surface feet per minute up to a maximum of 16,000 surface feet per minute. (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: (i) Flat belts one (1) inch or less in width. (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. (iv) Mechanical power presses with a configuration which would allow a person to enter, pass through, and become clear of the sensing field into the hazardous portion of the press shall not be used in the PSDI mode of operation. (i) Blotters (compressible washers) shall always be used between flanges and abrasive wheel surfaces to insure uniform distribution of flange pressure. See paragraph (c)(3)(ii) of this section regarding manual feeding through interlocked press barrier devices. Minimum object sensitivity describes the largest acceptable size of the interruption in the sensing field. (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. 30, 1984; 51 FR 34561, Sept. 29, 1986; 53 FR 8353, 8358 Mar. (a) When used in press operations requiring more than one operator, separate two hand trips shall be provided for each operator, and shall be designed to require concurrent application of all operators' to activate the slide. 1910.1005 [Reserved] This hood or shield shall be so designed as to guard against danger from flying splinters or broken saw teeth. 20), and the openings shall be not greater than three-eighths inch. Filing office location. Appendix C to Subpart L of Part 1910Fire Protection References For Further Information 1910.2 Definitions. Such tools shall not be in lieu of other guarding required by this section, but can only be used to supplement protection provided. (i) Each continuous line of shafting shall be secured in position against excessive endwise movement. For hole sizes smaller than shown in this table, use table 12. 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. 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. (2) Arbor size. (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. Belt perches. b. (v) A covered container shall be provided to store dross skimmings. (See Figure O-24 for one such type of mounting.). (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. Machines designed for a fixed location shall be securely anchored to prevent walking or moving. For the purpose of demonstrating compliance with the reaction time required by 1910.217(h), the tests shall use the following definitions and requirements: a. Prior to use, both the employer and manufacturer must certify that these requirements and all the other applicable requirements of this section are met and these certifications must be validated by an OSHA-recognized third-party validation organization to meet these additional requirements and all the other applicable requirements of paragraphs (a) through (h) and appendix A of this section. (32) Guard means a barrier that prevents entry of the operator's hands or fingers into the point of operation. The requirements of paragraph (f)(1) of this section shall also apply to hot trimming presses. 1. (ii) Where explosives, explosive dusts, flammable vapors or flammable liquids exist, the hazard of static sparks from shafting shall be carefully considered. 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. (i) All exposed parts of horizontal shafting seven (7) feet or less from floor or working platform, excepting runways used exclusively for oiling, or running adjustments, shall be protected by a stationary casing enclosing shafting completely or by a trough enclosing sides and top or sides and bottom of shafting as location requires. will also bring you to search results. (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. 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. 4. Ample room for cleaning machines, handling material, work pieces, and scrap shall also be provided. All flanges shall be maintained in good condition. All applications submitted will be accepted by OSHA, and their receipt acknowledged in writing. 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. b. 1910.121 [Reserved]. (i) Wheels must be dry and free from sawdust when applying the ring test, otherwise the sound will be deadened. Any person or organization considering itself capable of conducting a PSDI-related third-party validation function may apply for OSHA recognition. The Electronic Code of Federal Regulations (eCFR) is a continuously updated online version of the CFR. (5) Excluded machinery. The requirements of this paragraph are also applicable to sliding cutoff saws mounted above the table. The failure shall be indicated by the system. Reactivation of the clutch shall require restoration of normal supply and the use of the tripping mechanism(s). Full stop or No movement of the slide or ram means when the crankshaft rotation has slowed to two or less revolutions per minute, just before stopping completely. The stop control shall override any other control, and reactuation of the clutch shall require use of the operating (tripping) means which has been selected. 2. 1910.105 Nitrous oxide. OSHA Conveyor Standards 1926.555 (a) General requirements. A recognized validation organization may apply to OSHA for an expansion of its current recognition to cover other categories of PSDI certification/validation in addition to those included in the current recognition. A validation organization may be considered independent even if it has ties with manufacturers, employers or employee representatives if these ties are with at least two of these three groups; it has a board of directors (or equivalent leadership responsible for the certification/validation activities) which includes representatives of the three groups; and it has a binding commitment of funding for a period of three years or more. (5) Ripping and ploughing shall be against the direction in which the saw turns. The failure of a critical component shall necessitate the removal of the safety system from service until it is recertified and revalidated, except recertification by the employer without revalidation is permitted when a non-critical component or subsystem is replaced by one of the same manufacture and design as the original, or determined by the third-party validation organization to be equivalent by similarity analysis, as set forth in appendix A. Bearings shall be kept in alignment and properly adjusted. 1910.243 Guarding of portable powered tools. (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. (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. (i) The requirements of paragraph (h) shall apply to all part revolution mechanical power presses used in the PSDI mode of operation. (i) Overhead horizontal belts, with lower parts seven (7) feet or less from the floor or platform, shall be guarded on sides and bottom in accordance with paragraph (o)(3) of this section. A correlation of the brake and/or clutch degradation based on the above tests and/or estimates shall be made and documented. 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. Subpart PHand and Portable Powered Tools and Other Hand-Held Equipment. The press manufacturer's recommendations shall be followed. All revolving collars, including split collars, shall be cylindrical, and screws or bolts used in collars shall not project beyond the largest periphery of the collar. It is recommended that old installations be changed to conform to this rule. (4) Clutch means the coupling mechanism used on a mechanical power press to couple the flywheel to the crankshaft, either directly or through a gear train. (iv) All a.c. control circuits and solenoid value coils shall be powered by not more than a nominal 120-volt a.c. supply obtained from a transformer with an isolated secondary. All contact surfaces of wheels, blotters and flanges shall be flat and free of foreign matter. 1. (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. Gears shall be guarded in accordance with one of the following methods: (ii) By a standard guard as described in paragraph (o) of this section, at least seven (7) feet high extending six (6) inches above the mesh point of the gears; or. 1. (1) Guards. 3. 1910.110 Storage and handling of liquefied petroleum gases. (3) The top of the cutting chain and driving mechanism shall be enclosed. With an enclosure of sheet, perforated, or expanded metal, or woven wire; With guard rails placed not less than fifteen (15) inches nor more than twenty (20) inches from rim. (1) Collars. tensile strength 60,000 p.s.i.). 8. Have unit wired by qualified electrician. 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: Flat belts one (1) inch or less in width. 1910.24 Step bolts and manhole steps. If cracked, there will be a dead sound and not a clear ring.. Guardrail shall be forty-two (42) inches in height, with midrail between top rail and floor. The upper run shall be so guarded as to prevent contact therewith either by the worker or by objects carried by him. (b) Being a single control protected against accidental actuation and so located that the worker cannot reach into the point of operation while operating the single control. If you need more than just a PowerPoint, be sure to hop over to . The Code of Federal Regulations (CFR) is the official legal print publication containing the codification of the general and permanent rules published in the Federal Register by the departments and agencies of the Federal Government. The approval of brake monitor adjustments, as required in paragraph (h)(5)(ii), is not considered a recertification, and does not necessarily involve an on-site inspection by a representative of the validation organization. 3. Each continuous line of shafting shall be secured in position against excessive endwise movement. 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. 1910.120 Hazardous waste operations and emergency response. Table O-6 - Minimum Dimensions for Straight Relieved Flanges1. (iii) Special handtools for placing and removing material shall be such as to permit easy handling of material without the operator placing a hand in the danger zone. 1910.1 Purpose and scope. (iv) The employer shall provide and enforce the use of safety blocks for use whenever dies are being adjusted or repaired in the press. (30) Foot control means the foot operated control mechanism designed to be used with a clutch or clutch/brake control system. Workplace Violence. When the bearing surfaces become worn, warped, sprung, or damaged they should be trued or refaced. 1910.123 Dipping and coating operations: Coverage and definitions. 1. will bring you to those results. 1910.211 Definitions. ( a) As used in 1910.213 and 1910.214 unless the context clearly requires otherwise, the following woodworking machinery terms shall have the meaning prescribed in this paragraph. (i) The employer shall establish a diesetting procedure that will insure compliance with paragraph (c) of this section. (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. (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. (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 failure shall be detectable by a simple test, or indicated by the control system. (ii) The safety system shall be designed, constructed, and arranged as an integral total system, including all elements of the press, the controls, the safeguarding and any required supplemental safeguarding, and their interfaces with the operator and that part of the environment which has effect on the protection against point of operation hazards. (2) Foot operated devices. 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. 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. The employer shall evaluate and test the PSDI safety system installation, shall submit to the OSHA-recognized third-party validation organization the necessary supporting documentation, and shall recertify that the requirements of 1910.217(a) through (h) and this appendix are being met. All auxiliary equipment such as mill divider, support bars, spray pipes, feed conveyors, strip knives, etc., shall be located in such a manner as to avoid interference with access to and operation of safety devices. This exception also is referred to as the "minor servicing exception." (iv) The following are some of the machines which usually require point of operation guarding: (4) Barrels, containers, and drums. (11) Off-hand grinding means the grinding of any material or part which is held in the operator's hand. Overhead-rope and chain-drive guard construction shall conform to the rules for overhead-belt guard. 1910.7 Definition and requirements for a nationally recognized testing laboratory. (iv) Air counterbalance cylinders shall have adequate capability to hold the slide and its attachments at any point in stroke, without brake applied. 1910.213 Woodworking machinery requirements. 1910.181 Derricks. 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. 1910.36 Design and construction requirements for exit routes. The hood shall be so mounted as to insure that its operation will be positive, reliable, and in true alignment with the saw; and the mounting shall be adequate in strength to resist any reasonable side thrust or other force tending to throw it out of line. 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.). 1910.421 Pre-dive procedures. 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. The maximum angular exposure of the grinding wheel periphery and sides for safety guards used on cutting-off machines and on surface grinding machines which employ the wheel periphery shall not exceed 150. 1910.334 Use of equipment. (iv) Personal protective equipment (gloves, goggles, aprons, and other items) shall be worn. (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. flat belts two (2) inches or less in width which are free from metal lacings or fasteners. Such a device shall not depend for its proper functioning upon any rope, cord, or spring. (iii) The pedal return spring(s) shall be of the compression type, operating on a rod or guided within a hole or tube, or designed to prevent interleaving of spring coils in event of breakage. [39 FR 23502, June 27, 1974, as amended at 39 FR 41846, Dec. 3, 1974; 53 FR 8353, Mar. Mills and calenders in the rubber and plastics industries. Sec. The PSDI safety system shall remain under certification/validation for the shorter of one year or until the system hardware is changed, modified or refurbished, or operating conditions are changed (including environmental, application or facility changes), or a failure of a critical component has occurred. The requirements for OSHA recognition of a third-party validation organization for the PSDI standard are that the program has fulfilled the requirements of section II of this appendix for qualifications and of section III of this appendix for program requirements, and the program has identified appropriate test and analysis methods to meet the requirements of the PSDI standard and appendix A.
10. March 2023