(i) Machines using full revolution clutches shall incorporate a single-stroke mechanism. Steam hammers shall be provided with a means of cylinder draining, such as a self-draining arrangement or a quick-acting drain cock. (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. (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. Where the drive extends over other machine or working areas, protection against falling shall be provided. (3) Belt perches. Bearings shall be kept in alignment and properly adjusted. (ii) 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. (iii) The employer shall provide die stops or other means to prevent losing control of the die while setting or removing dies in presses which are inclined. All drip cups and pans shall be securely fastened. Navigate by entering citations or phrases (c) The control system shall incorporate an antirepeat feature. 1910.509Incorporation by reference. A safety trip control shall be provided in front and in back of each mill. When repairing or cleaning a conveyor, all equipment must be locked or blocked and operating controls tagged. Appendix A to Subpart T of Part 1910Examples of Conditions Which May Restrict or Limit Exposure to Hyperbaric Conditions Based upon this determination, a scale shall be developed to indicate the allowable 10 percent of the stopping time at the top of the stroke for slide or ram overtravel due to brake wear. 9. 1910.103 Hydrogen. This section covers the principal features with which power transmission safeguards shall comply. In powerplants only the lower run of the belt need be guarded. (1) Safety trip, face. (vi) The employer shall notify the OSHA-recognized third-party validation organization within five days of the occurrence of any point of operation injury while a press is used in the PSDI mode. contact the publishing agency. 4. screw conveyors and the periphery of an abrasive . (65) Validation or validate means for PSDI safety systems that an OSHA recognized third-party validation organization: (i) For design certification/validation has reviewed the manufacturer's certification that the PSDI safety system meets the requirements of 1910.217 (a) through (h) and appendix A and the underlying tests and analyses performed by the manufacturer, has performed additional tests and analyses which may be required by 1910.217 (a) through (h) and appendix A, and concludes that the requirements of 1910.217 (a) through (h) and appendix A have been met; and. This is an automated process for Sec. b. (8) Forging rolls mean a class of auxiliary forging equipment wherein stock is shaped between power driven rolls bearing contoured dies. (a) 24-inch diameter wheel, 1,000 revolutions per minute. 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. 1910.421 Pre-dive procedures. 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. 1910.98 Effective dates. 1910.135 Head protection. (i) Point of operation devices shall protect the operator by: (a) Preventing and/or stopping normal stroking of the press if the operator's hands are inadvertently placed in the point of operation; or, (b) Preventing the operator from inadvertently reaching into the point of operation, or withdrawing his hands if they are inadvertently located in the point of operation, as the dies close; or, (c) Preventing the operator from inadvertently reaching into the point of operation at all times; or, (e) Requiring application of both of the operator's hands to machine operating controls and locating such controls at such a safety distance from the point of operation that the slide completes the downward travel or stops before the operator can reach into the point of operation with his hands; or, (f) Enclosing the point of operation before a press stroke can be initiated, and maintaining this closed condition until the motion of the slide had ceased; or. Lubrication. Where light curtain object sensitivity is user-adjustable, either discretely or continuously, design features shall limit the minimum object sensitivity adjustment not to exceed one and one-fourth inches (31.75 mm). The Part 1910 - OSHA General Industry regulations book is designed to assist you in meeting OSHA requirements. the hierarchy of the document. Conveyor Safety When used incorrectly, they can be dangerous. 1910.217 Mechanical power presses. (d) Design, construction, setting and feeding of dies -. (b) Each two hand control shall meet the construction requirements of paragraph (b)(7)(v) of this section. Table O-6 - Minimum Dimensions for Straight Relieved Flanges1. Means must be provided to prevent tightener from falling, in case the belt breaks. b. (C) Maintain a certification record of each inspection, and each maintenance and repair task performed, under the general component of the inspection program that includes the date of the inspection, maintenance, or repair work, the signature of the person who performed the inspection, maintenance, or repair work, and the serial number, or other identifier, of the power press inspected, maintained, and repaired. The provisions of paragraph (h) of this section shall apply to rivet making. The failure shall be indicated by the system. (34) Fixed barrier guard means a die space barrier attached to the press frame. 7. 4. The upper-wheel guard shall be made to conform to the travel of the saw on the wheel. When required by paragraph (c)(5) of this section, the control system 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 initiation of a successive stroke until the failure is corrected. Choosing an item from (1) Guards. 5. 1910.184 Slings. 1910.216 Mills and calenders in the rubber and plastics industries. [Reserved] The clutch/brake control system shall be designed and constructed to prevent actuation of the clutch if all operating stations are bypassed. (iii) Type of clutch used on the press (full revolution, part revolution, or direct drive). (iv) The employer shall provide and enforce the use of safety blocks for use whenever dies are being adjusted or repaired in the press. (iii) Safety tripwire cable or wire center cord. (vii) The two hand control device shall protect the operator as specified in paragraph (c)(3)(i)(e) of this section. 5. The various openings are such that for average size hands an operator's fingers won't reach the point of operation. Conveyor Safety - HSI The employer shall operate his presses within the tonnage and attachment weight ratings specified by the manufacturer. (c) Presses. In overhead silent chain-drive guards where the chain is held from lateral displacement on the sprockets, the side clearances required on drives of twenty (20) inch centers or under shall be not less than one-fourth inch from the nearest moving chain part, and on drives of over twenty (20) inch centers a minimum of one-half inch from the nearest moving chain part. The sides of the trough shall come within at least six (6) inches of the underside of table, or if shafting is located near floor within six (6) inches of floor. d. When one year has elapsed since the installation certification/validation or the last recertification/revalidation. In addition, General Industry applications must adhere to OSHA regulations for Ladder Safety 1910.23 (if applicable) and Walking-Working Surfaces 1910.28. 1910.158 Standpipe and hose systems. PART 1910OCCUPATIONAL SAFETY AND HEALTH STANDARDS. All measurements on mills and calenders shall be taken with the rolls running empty at maximum operating speed. The validation organization may charge any complainant the reasonable charge for repeating tests needed for the resolution of disputes. (3) Type 6 straight cup wheels means wheels having diameter, thickness, hole size, rim thickness, and back thickness dimensions. (ii) 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. 1910.22 General requirements. (11) Off-hand grinding means the grinding of any material or part which is held in the operator's hand. Pulleys with cracks, or pieces broken out of rims, shall not be used. Overhead-rope and chain-drive guard construction shall conform to the rules for overhead-belt guard. In 2015 it again made list, coming in at number ten. By a band guard covering the face of gear and having flanges extended inward beyond the root of the teeth on the exposed side or sides. (4) Surfacers or planers used in thicknessing multiple pieces of material simultaneously shall be provided with sectional infeed rolls having sufficient yield in the construction of the sections to provide feeding contact pressure on the stock, over the permissible range of variation in stock thickness specified or for which the machine is designed. The upper hood shall be constructed in such a manner and of such material that it will protect the operator from flying splinters, broken saw teeth, etc., and will deflect sawdust away from the operator. If used, these devices shall be located so as to detect all operator locations and positions not detected by the PSDI sensing field, and shall prevent stroking or stop a stroke in process when any supplemental sensing field(s) are interrupted. Table O-8 - Minimum Dimensions for Straight Flanges Used as Wheel Sleeves for Precision Grinding Only. If the preliminary decision is in favor of recognition, a member of the public, or if the preliminary decision is against recognition, the applicant may request a public hearing by the close of the comment period, if it supplies detailed reasons and evidence challenging the basis of the Assistant Secretary's preliminary decision and justifying the need for a public hearing to bring out evidence which could not be effectively supplied through written submissions. (vi) Electrical clutch/brake control circuits shall incorporate features to minimize the possibility of an unintended stroke in the event of the failure of a control component to function properly, including relays, limit switches, and static output circuits. The third-party validation organization, annually or after a change specified in paragraph 1., shall validate the employer's certification that the requirements of paragraph B., Installation Certification/Validation have been met.
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