(i) The requirements of paragraph (h) shall apply to all part revolution mechanical power presses used in the PSDI mode of operation. (2) Brake means the mechanism used on a mechanical power press to stop and/or hold the crankshaft, either directly or through a gear train, when the clutch is disengaged. 1910.141 Sanitation. The guard for the portion of the blade between the sliding guide and the upper-saw-wheel guard shall protect the saw blade at the front and outer side. 2. Pulleys serving as balance wheels (e.g., punch presses) on which the point of contact between belt and pulley is more than six feet six inches (6 ft. 6 in.) The recognition of each validation organization will be valid for five years, unless terminated before or renewed after the expiration of the period. 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. This is where OSHA comes into the picture. Exceptions are set forth in the remaining subdivisions of this subparagraph. 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. 1910.120 Hazardous waste operations and emergency response. (vii) Controls for more than one operating station shall be designed to be activated and deactivated in complete sets of two operator's hand controls per operating station by means capable of being supervised by the employer. Dp = Penetration depth factor, required to provide for possible penetration through the presence sensing field by fingers or hand before detection occurs. (d) Each pull-out device in use shall be visually inspected and checked for proper adjustment at the start of each operator shift, following a new die set-up, and when operators are changed. Hangers shall be inspected to make certain that all supporting bolts and screws are tight and that supports of hanger boxes are adjusted properly. b. The guard shall be constructed of heavy material, preferably metal, and firmly secured to the frame carrying the rolls so as to remain in adjustment for any thickness of stock. (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. (1) Each planing, molding, sticking, and matching machine shall have all cutting heads, and saws if used, covered by a metal guard. Mechanical and electrical equipment and auxiliaries shall be installed in accordance with this section and subpart S of this part. (b) Each two hand trip shall meet the construction requirements of paragraph (b)(6) of this section. (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. Similarly, only presses with a configuration such that a person's body cannot completely enter the bed area are approved for PSDI. Where the drive extends over other machine or working areas, protection against falling shall be provided. (ii) Type 27 and Type 28 wheels, because of their shape and usage, require specially designed adaptors. (11) Band type guards - general specifications. Hand feeding tools are intended for placing and removing materials in and from the press. (The operational and installation requirements of the PSDI safety system may vary for different applications.). (37) Guide post means the pin attached to the upper or lower die shoe operating within the bushing on the opposing die shoe, to maintain the alignment of the upper and lower dies. This requirement shall not apply to natural sandstone wheels or metal, wooden, cloth, or paper discs, having a layer of abrasive on the surface. 1910.18 Changes in established Federal standards. 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. 49 CFR 172.101 (15) Organic wheels means wheels which are bonded by means of an organic material such as resin, rubber, shellac, or other similar bonding agent. See Table O-10. If you have comments or suggestions on how to improve the www.ecfr.gov website or have questions about using www.ecfr.gov, please choose the 'Website Feedback' button below. (5) Ripping and ploughing shall be against the direction in which the saw turns. 1910.124 General requirements for dipping and coating operations. If they sound cracked (dead), they shall not be used. Stopping distances shall be expressed in inches of surface travel of the roll from the instant the emergency stopping device is actuated. No changes found for this content after 1/03/2017. (xiii) The Control system shall incorporate interlocks for supplemental guards, if used, which will prevent stroke initiation or will stop a stroke in progress if any supplemental guard fails or is deactivated. 1910.161 Fixed extinguishing systems, dry chemical. 1910.15 Shipyard employment. [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. (8) Concurrent means acting in conjunction, and is used to describe a situation wherein two or more controls exist in an operated condition at the same time. If it so determines, it shall revalidate the employer's recertification that the PSDI system is in full conformance with all requirements of 29 CFR 1910.217(a) through (h) and this appendix A. Final decision by Assistant Secretary - a. Refer to OSHA 1910.132 (Personal Prot. Provide employees with the right battery handling equipment. (7) Lubrication. (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. 1910.212 General requirements for all machines. The recommendations of the brake system manufacturer shall be used to simulate or estimate the brake wear. The clearance line marks the distance required to prevent contact between guard and moving parts. The safety requirements of this subparagraph apply to lead casts or other use of lead in the forge shop or die shop. (v) The route followed by the oiler is protected in such manner as to prevent accident. Workers who operate and maintain machinery suffer approximately 18,000 amputations, lacerations, crushing injuries, abrasions, and over 800 deaths per year. 1910.121 [Reserved]. Collars. The test shall be considered successful if the stopping time remains within that which is determined by paragraph (h)(9)(v) for the safety distance setting. Press brakes, hydraulic and pneumatic power presses, bulldozers, hot bending and hot metal presses, forging presses and hammers, riveting machines and similar types of fastener applicators are excluded from the requirements of this section. It is not an official legal edition of the CFR. A. Certification/validation of hardware design below the system level should be accomplished by test and/or analysis. Hangers. If a stairway accesses the catwalk, the width requirements depend on the width of the stairway that serves it. (10) It is recommended that each power-driven woodworking machine be provided with a disconnect switch that can be locked in the off position. Flywheels located so that any part is seven (7) feet or less above floor or platform shall be guarded in accordance with the requirements of this subparagraph: (i) With an enclosure of sheet, perforated, or expanded metal, or woven wire; (ii) With guard rails placed not less than fifteen (15) inches nor more than twenty (20) inches from rim. The materials and dimensions specified in this paragraph shall apply to all guards, except horizontal overhead belts, rope, cable, or chain guards more than seven (7) feet above floor, or platform. 1910.268 Telecommunications. (iv) The employer shall provide and enforce the use of safety blocks for use whenever dies are being adjusted or repaired in the press. 4. The outside periphery of the enclosure shall be solid. 1910.176 Handling materialsgeneral. (1) A mechanical or electrical power control shall be provided on each machine to make it possible for the operator to cut off the power from each machine without leaving his position at the point of operation. The direction of the saw rotation shall be conspicuously marked on the hood. Such supplemental safeguarding shall consist of either additional light curtain (photo-electric) presence sensing devices or other types of guards which meet the requirements of paragraphs (c) and (h) of this section. (k) Guarding of clutches, cutoff couplings, and clutch pulleys -. Subpart GOccupational Health and Environmental Control. (iv) The ram shall be blocked when dies are being changed or other work is being done on the hammer. b. (See paragraph (d)(5) of this section.). 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: The intensity of illumination conforms to the requirements of ANSI A11.1-1965 (R-1970), which is incorporated by reference as specified in 1910.6. (1) Forging means the product of work on metal formed to a desired shape by impact or pressure in hammers, forging machines (upsetters), presses, rolls, and related forming equipment. Ts = Longest press stopping time, in seconds, computed by taking averages of multiple measurements at each of three positions (45 degrees, 60 degrees, and 90 degrees) of crankshaft angular position; the longest of the three averages is the stopping time to use. (14) Abrasive wheel means a cutting tool consisting of abrasive grains held together by organic or inorganic bonds. Adjustable guard to be used for starting engine or for running adjustment may be provided at the flywheel of gas or oil engines. Results of all tests which serve as the basis for the certification. An open space, not exceeding four (4) inches in width, may be left between the outside edge of the disk and the rim of the wheel if desired, to facilitate turning the wheel over.