If a stairway accesses the catwalk, the width requirements depend on the width of the stairway that serves it. Each continuous line of shafting shall be secured in position against excessive endwise movement. 1910.163 Fixed extinguishing systems, water spray and foam. Openings for oiling. (ii) Under the directed component of the inspection program, the employer shall: (A) Inspect and test each press on a regular basis at least once a week to determine the condition of the clutch/brake mechanism, antirepeat feature, and single-stroke mechanism; (B) Perform and complete necessary maintenance or repair, or both, on the clutch/brake mechanism, antirepeat feature, and single-stroke mechanism before operating the press; and. Preliminary disapproval. Equip.) (5) Unitized tooling. 12. 1910.509Incorporation by reference. 1910.336-1910.360 [Reserved], Safety Requirements for Special Equipment, 1910.399 Definitions applicable to this subpart. 1910.1004 alpha-Naphthylamine. (ii) The ram shall be blocked with a material the strength of which shall meet or exceed the specifications or dimensions shown in Table O-11. 1910.143 Nonwater carriage disposal systems. (ii) Air-lift hammers shall have an air shutoff valve as required in paragraph (d)(2) of this section. Abrasive wheels shall be used only on machines provided with safety guards as defined in the following paragraphs of this section, except: (i) Wheels used for internal work while within the work being ground; (ii) Mounted wheels, used in portable operations, 2 inches and smaller in diameter; and. Hardwoods recommended are those whose ultimate crushing strengths in compression parallel to grain are 5,000 p.s.i. They shall be located in front of the saw and so arranged as to be in continual contact with the wood being fed. (The operational and installation requirements of the PSDI safety system may vary for different applications.). All d.c. control circuits shall be powered by not more than a nominal 240-volt d.c. supply isolated from any higher voltages. Overhead-rope and chain-drive guard construction shall conform to the rules for overhead-belt guard. This clearance shall not exceed one-sixteenth inch. Emergency Stop Pull-Cords - Machinery Safety 101 1. Grade V60-30. Without hearing. (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. 1910.1020 Access to employee exposure and medical records. 1910.176 Handling materialsgeneral. This should enhance the reliability of the device and ensure that it remains operable. (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. (i) Expanded metal, sheet or perforated metal, and wire mesh shall be securely fastened to frame. (iv) Periodic inspections of clutch and brake mechanisms shall be performed to assure they are in proper operating condition. 1910.125 Additional requirements for dipping and coating operations that use flammable liquids or liquids with flashpoints greater than 199.4 F (93 C). 3. Each reaction time required to calculate the Safety Distance, including the brake monitor setting, shall be documented in separate reaction time tests. The certification/validation process shall verify that the safety system complies with the OSHA safety requirements as follows: 1. 1910.137 Electrical protective equipment. 1910.1028 Benzene. Stopping distances shall be expressed in inches of surface travel of the roll from the instant the emergency stopping device is actuated. This is in addition to the report of injury required by paragraph (g) of this section; however, a copy of that report may be used for this purpose. Type 1 wheels shall be mounted between flanges. (ii) All metal should be free from burrs and sharp edges. (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. (v) Adjustable guard to be used for starting engine or for running adjustment may be provided at the flywheel of gas or oil engines. a. and fell backwards and hit my head on the frame of the conveyor . 1910.110 Storage and handling of liquefied petroleum gases. It shall be accessible and shall operate readily on contact. Installed in the front and in the back of each mill and located within 2 inches of a vertical plane tangent to the front and rear rolls. (i) Tables O-4 and O-6 and Figures O-30 and O-32 show minimum dimensions for straight relieved and unrelieved flanges for use with wheels with small holes that fit directly on the machine spindle. When more than one wheel is mounted between a single set of flanges, wheels may be cemented together or separated by specially designed spacers. Momentary operation of the stop control shall immediately deactivate the clutch and apply the brake. 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. (3) Scrap handling. (i) Vertical and inclined belts shall be enclosed by a guard conforming to standards in paragraphs (m) and (o) of this section. 1910.97 Nonionizing radiation. (2) General requirements for machine guards. (2) Calenders. tensile strength 60,000 p.s.i.). (e) Trip and emergency switches. (c) If belt is eight (8) inches or more in width. 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. (A) Where presses that have slide counterbalance systems are used in the PSDI mode, the counterbalance system shall also meet the requirements of paragraph (b)(9) of this section. These bars shall operate readily by pressure of the mill operator's body. Vertical belts running over a lower pulley more than seven (7) feet above floor or platform shall be guarded at the bottom in the same manner as horizontal overhead belts, if conditions are as stated in paragraphs (e)(2)(ii) (a) and (c) of this section. The basement, tower, or room occupied by transmission equipment is locked against unauthorized entrance. (2) Cutting heads on wood-turning lathes, whether rotating or not, shall be covered as completely as possible by hoods or shields. ), (4) Cylindrical grinders. "Employers want to make sure their equipment is safe to operate," says McCullough. 1. (n) Planing, molding, sticking, and matching machines. (1) General. You can learn more about the process Integrated Tests Certification/Validation. 1910.1053 Respirable crystalline silica. 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. (b) Each two hand control shall meet the construction requirements of paragraph (b)(7)(v) of this section. 1910.1451-1910.1499 [Reserved]. Necessary maintenance or repair or both shall be performed and completed before the press is operated. (v) Air counterbalance cylinders shall incorporate means to prevent failure of capability (sudden loss of pressure) in event of air supply failure. (1) Minimum requirements. Shall not engage in the design, manufacture, sale, promotion, or use of the certified equipment. (6) Circular saw fences shall be so constructed that they can be firmly secured to the table or table assembly without changing their alignment with the saw. Occupational Safety and Health Administration (OSHA) No current OSHA standards apply specifically to compacting and baling equipment. The requirement in paragraph (h)(2)(ii) defines a high torque capability which should ensure fast and consistent stopping times. (iii) Modified Types 6 and 11 wheels (terrazzo) with tapered K dimension. 1910.136 Foot protection. (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. The written procedures for test and certification/validation of PSDI systems, and the standards and test methods on which they are based, shall be reproducible and be available to OSHA and to the public upon request. 1910.123 Dipping and coating operations: Coverage and definitions. (iii) A means of selecting Off, Inch, Single Stroke, and Continuous (when the continuous function is furnished) shall be supplied with the clutch/brake control to select type of operation of the press. Paragraph (h)(6)(xv) of the standard requires that the control system have provisions for an inch operating means; that die-setting not be done in the PSDI mode; and that production not be done in the inch mode. (1) Bite means the nip point between any two inrunning rolls. Dimensions of such flanges shall never be less than indicated. A copy of the test report shall be maintained on file at the validation organization and/or validating laboratory, and shall be available to OSHA upon request. Pulleys shall be kept in proper alignment to prevent belts from running off. The regular oilers shall wear tight-fitting clothing. Decreasing manual material handling also lessens the chance of injury to a workers back and hands. 2. 2. (3) Flanges. (ii) The PSDI mode shall not be used for die setting or set-up. 1910.211 Definitions. The test(s) shall document the range of object diameter sizes which will produce both single and double break conditions. 1910.402 Definitions. It is free of direct influence or control by manufacturers, suppliers, vendors, representatives of employers and employees, and employer or employee organizations; and. PDF All Conveyors - Safety Section - Sukup Blotters need not be used with the following types of wheels: (ii) Abrasive discs (inserted nut, inserted washer, and projecting-stud type). Use of a brake monitor does not eliminate the need for periodic brake inspection and maintenance to reduce the possibility of catastrophic failures. OSHA in the Battery Room Part Two: OSHA 1910.178(g) It shall be made of material that is soft enough so that it will be unlikely to cause tooth breakage. 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. (1) General requirements. (i) 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. Employees are required to cover and protect long hair to prevent it from getting caught in machine parts such as belts, chain and rotating parts. a. 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. Where tools are used for feeding, removal of scrap, lubrication of parts, or removal of parts that stick on the die in PSDI operations: (A) The minimum diameter of the tool handle extension shall be greater than the minimum object sensitivity of the presence sensing device(s) used to initiate press strokes; or. a. For saws with tilting tables or tilting arbors the fence shall be so constructed that it will remain in a line parallel with the saw, regardless of the angle of the saw with the table. (i) Straight relieved flanges made according to Table O-6 and Figure O-32 shall be recessed at least one-sixteenth inch on the side next to the wheel for a distance as specified in Table O-6. Expanded metal, sheet or perforated metal, and wire mesh shall be securely fastened to frame. Subscribe to: Changes in Title 29 :: Subtitle B :: Chapter XVII :: Part 1910 :: Subpart O. If workers need to cross over a conveyor, OSHA has specific requirements for both Construction and Marine applications of Conveyor Crossovers. (f) Guards shall be used to protect all areas of entry to the point of operation not protected by the presence sensing device. Belt perches. This requirement shall not apply to natural sandstone wheels or metal, wooden, cloth, or paper discs, having a layer of abrasive on the surface. d. The applicant shall identify the test methods it or the validating laboratory will use to test or judge the components and operations of the PSDI safety system required to be tested by the PSDI standard and appendix A, and shall specify the reasons the test methods are appropriate. The visual check shall include a determination that the spring housing or rod does not show damage sufficient to degrade the structural integrity of the unit, and the spring does not show any tendency to interleave. 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. The clearance line marks the distance required to prevent contact between guard and moving parts. (B) Guards used as supplemental safeguarding shall conform to the design, construction and application requirements of paragraph (c)(2) of this section, and shall be interlocked with the press control to prevent press PSDI operation if the guard fails, is removed, or is out of position. (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. (f) Certain Type 1 and Type 27A cutting-off wheels. the hierarchy of the document. 3. See Table O-10. (iv) Type of safeguard(s) being used (two hand control, two hand trip, pullouts, sweeps, or other). (iv) 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. This type, however, differs from Type 5 in that the grinding is performed on the wall of the abrasive created by the difference between the diameter of the recess and the outside diameter of the wheel. 2 For wheels under 114 inch thick F dimension shall not exceed 40 percent of wheel thickness. of this appendix, above, not less than 180 calendar days, nor more than one year, before the expiration date of its current recognition. Note: These flanges may be clamped together by means of a central nut, or by a series of bolts or some other equivalent means of fastening. (2) Belt shippers and shipper poles. 1/1.1 (10) It is recommended that each power-driven woodworking machine be provided with a disconnect switch that can be locked in the off position. 2. (4) This section covers the principal features with which power transmission safeguards shall comply. (1) Gears. 1910.169 Air receivers. Provide employees with the right battery handling equipment. 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. All abrasive wheels shall be mounted between flanges which shall not be less than one-third the diameter of the wheel. Machinery shall be oiled when not in motion, wherever possible. 1910.272 Grain handling facilities. 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. Bandsaw wheels shall be fully encased. (vi) Certain Type 1 and Type 27A cutting-off wheels. . ), (9) Exposure adjustment. Cold trimming presses shall be safeguarded in accordance with 1910.217(c). 1910.424 SCUBA diving. "Published Edition". (ii) Where explosives, explosive dusts, flammable vapors or flammable liquids exist, the hazard of static sparks from shafting shall be carefully considered. 1. Hand feeding tools are not a point of operation guard or protection device and shall not be used in lieu of the guards or devices required in this section. (xv) The control system shall have provisions for an inch operating means meeting the requirements of paragraph (b)(7)(iv) of this section. (8) The practice of inserting wedges between the saw disk and the collar to form what is commonly known as a wobble saw shall not be permitted. 1910.120 Hazardous waste operations and emergency response. The requirement in paragrpah (h)(2)(iii) reduces the possibility of significantly increased stopping time if a spring breaks. 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.