A separate pushbutton shall be employed to activate the clutch, and the clutch shall be activated only if the driver motor is deenergized. (2) Engine rooms. (3) Cylinder draining. If unitized tooling is used, the opening between the top of the punch holder and the face of the slide, or striking pad, shall be safeguarded in accordance with the requirements of paragraph (c) of this section. flat belts two (2) inches or less in width which are free from metal lacings or fasteners. A separate drafting site The cables shall not be more than 72 inches above the level on which the operator stands. (iv) The Inch operating means shall be designed to prevent exposure of the workers hands within the point of operation by: (a) Requiring the concurrent use of both hands to actuate the clutch, or. The emphasis is on an integrated total system including all elements affecting point of operation safety. 7. 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. 1910.152 [Reserved]. (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. 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. (iv) The following are some of the machines which usually require point of operation guarding: (4) Barrels, containers, and drums. (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. The mounting features shall conform with all requirements of this section. The Occupational Safety and Health Administration's (OSHA's) requirements for machine guarding are found in 29 Code of Federal Regulations (CFR) 1910 Subpart O, Machinery and Machine Guarding as detailed below; 1910.211 Definitions; 1910.212 General requirements for all machines; . (3) Surface condition. This requirement does not apply to those elements of the control system which have no effect on the protection against point of operation injuries. (a) When used in press operations requiring more than one operator, separate two hand controls shall be provided for each operator, and shall be designed to require concurrent application of all operators' controls to activate the slide. A correlation of the brake and/or clutch degradation based on the above tests and/or estimates shall be made and documented. 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. (9) All belts, pulleys, gears, shafts, and moving parts shall be guarded in accordance with the specific requirements of 1910.219. 1910.244 Other portable tools and equipment. Gears. (9) Repairs and maintenance. "They . 1910.505Severability. 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. (1) Feed chains and sprockets of all double end tenoning machines shall be completely enclosed, except for that portion of chain used for conveying the stock. (1) Safety cylinder head. ), (8) Top grinding. Without hearing. Have unit wired by qualified electrician. (2) At the rear ends of frames over which feed conveyors run, sprockets and chains shall be guarded at the sides by plates projecting beyond the periphery of sprockets and the ends of lugs. (i) Die setting on presses used in the PSDI mode shall be performed in accordance with paragraphs (d) and (h) of this section. (d) Two hand trips shall be fixed in position so that only a supervisor or safety engineer is capable of relocating the controls. (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. (See Figures O-16 and O-17. 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. (52) Stop control means an operator control designed to immediately deactivate the clutch control and activate the brake to stop slide motion. 1910.68 Manlifts. (57) Two-hand trip means a clutch actuating means requiring the concurrent use of both hands of the operator to trip the press. 1910.335 Safeguards for personnel protection. (3) Each tenoning machine shall have all cutting heads, and saws if used, covered by metal guards. Regulation 1910.178(g)(2) also mandates "adequate ventilation" in battery charging areas. The interior surface of all guards, by which is meant the surface of the guard with which a belt will come in contact, shall be smooth and free from all projections of any character, except where construction demands it; protruding shallow roundhead rivets may be used. The validating organization may utilize the competence, experience, and capability of its employees to demonstrate this competence, experience and capability. (i) The control system on presses used in the PSDI mode shall meet the applicable requirements of paragraphs (b)(7), (b)(8), (b)(13), and (c)(5) of this section. (4) Belt fasteners. The recommendations of the brake system manufacturer shall be used to simulate or estimate the brake wear. All drip cups and pans shall be securely fastened. A slot opening for jack bar will be permitted. [39 FR 23502, June 27, 1974, as amended at 39 FR 41846, Dec. 3, 1974; 53 FR 8353, Mar. (2) Cold trimming presses. (40) Jog means an intermittent motion imparted to the slide by momentary operation of the drive motor, after the clutch is engaged with the flywheel at rest. Brake design parameters important to PSDI are high torque, low moment of inertia, low air volume (if pneumatic) mechanisms, non-interleaving engagement springs, and structural integrity which is enhanced by over-design. Showing adjustable tongue giving required angular protection for all sizes of wheel used. 2. result, it may not include the most recent changes applied to the CFR. d. When one year has elapsed since the installation certification/validation or the last recertification/revalidation. 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. (vi) Type of feeding (manual with hands in dies or with hands out of dies, semiautomatic, automatic, or other). (e) Inspection, maintenance, and modification of presses -. The employer shall: (i) Use dies and operating methods designed to control or eliminate hazards to operating personnel, and. The guard shall have openings no larger than one-half (12) inch. Bandsaw wheels shall be fully encased. Eligibility. (12) Guard design specifications. (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). (1) General. (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. Where loose pulleys or idlers are not practicable, belt perches in form of brackets, rollers, etc., shall be used to keep idle belts away from the shafts. The midrail may be one by four (1 4) inches or more. If you need more than just a PowerPoint, be sure to hop over to . (11) Band type guards - general specifications. 2. 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. Side grinding wheel having a wall flared or tapered outward from the back. (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. (1) The upper hood shall completely enclose the upper portion of the blade down to a point that will include the end of the saw arbor. Steel castings (min. 1910.242 Hand and portable powered tools and equipment, general. [Reserved], https://www.ecfr.gov/current/title-29/subtitle-B/chapter-XVII/part-1910/subpart-O. single strand V-belts, the width of which is thirteen thirty-seconds (1332) inch or less. Agree to terms and conditions established by OSHA in the grant of recognition on matters such as exchange of data, submission of accident reports, and assistance in studies for improving PSDI or the certification/validation process. View the most recent official publication: These links go to the official, published CFR, which is updated annually. (3) Upon issuance of the decision, any party to the hearing may file exceptions within 20 days pursuant to subpart C. If exceptions are filed, the administrative law judge shall forward the decision, exceptions and record to the Assistant Secretary for the final decision on the application. If a hearing is requested, it shall be held before an administrative law judge of the Department of Labor pursuant to the rules specified in 29 CFR part 1905, subpart C. c. The parties shall be OSHA and the recognized validation organization. (1) Each circular resaw shall be guarded by a hood or shield of metal above the saw. All power-transmission equipment shall be inspected at intervals not exceeding 60 days and be kept in good working condition at all times. 1910.142 Temporary labor camps. (3) Belt perches. Both types are reinforced, organic bonded wheels having offset hubs which permit side and peripheral grinding operations without interference with the mounting. 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.
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