Microsoft Edge, Google Chrome, Mozilla Firefox, or Safari. Surface Feet Per Minute = 3.1416 diameter in inches r.p.m. The work rest shall be securely clamped after each adjustment. (iii) Paragraph (e)(1)(ii) of this section does not apply to presses that comply with paragraphs (b)(13) and (14) of this section. Each reaction time required to calculate the Safety Distance, including the brake monitor setting, shall be documented in separate reaction time tests. (2) Hydraulic forging presses. The upper run shall be so guarded as to prevent contact therewith either by the worker or by objects carried by him. (e) The safety distance (Ds) from the sensing field to the point of operation shall be greater than the distance determined by the following formula: Ds = minimum safety distance (inches); 63 inches/second = hand speed constant; Ts = stopping time of the press measured at approximately 90 position of crankshaft rotation (seconds). 12. Showing movable guard with opening small enough to give required protection for smallest size wheel used. (4) Belt sanding machines shall be provided with guards at each nip point where the sanding belt runs on to a pulley. This trimming operation can also be done cold, as can coining, a product sizing operation. (5) Universal joints on spindles of boring machines shall be completely enclosed in such a way as to prevent accidental contact by the operator. Antirepeat is also called single stroke reset or reset circuit. The certification/validation report shall be signed by the Administrative Director and the Technical Director. Each time the operational conditions are significantly changed (including environmental, application or facility changes, but excluding such changes as die changes or press relocations not involving revision to the safety system); c. When a failure of a significant component has occurred or a change has been made which may affect safety; or. Lubrication of bearings is considered the single greatest deterrent to their failure. It would not be necessary to repeat the tests on individual safety systems of the same manufacture or design. Where guard is exposed to contact with moving equipment additional strength may be necessary. The PSDI set-up/reset means required by paragraph (h)(6)(iv) may be initiated by the actuation of a special momentary pushbutton or by the actuation of a special momentary pushbutton and the initiation of a first stroke with two hand controls. A validation organization may not terminate its installation certification and recertification validation functions earlier than either one year from the date of the written notice, or the date on which another recognized validation organization is able to perform the validation of installation certification and recertification. Guarding vertical and inclined shafting. (iv) Records of the installation certification and validation and the most recent recertification and revalidation shall be maintained for each safety system equipped press by the employer as long as the press is in use. (5) Exposure of blades. Where passage is regarded as necessary, there shall be a platform over the lower run guarded on either side by a railing completely filled in with wire mesh or other filler, or by a solid barrier. The control system shall require that each sensing field be interrupted the selected number of times prior to initiating a stroke. (41) Knockout means a mechanism for releasing material from either die. (4) Gravity hammers mean a class of forging hammer wherein energy for forging is obtained by the mass and velocity of a freely falling ram and the attached upper die. 1910.1025 Lead. (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. It shall include instruction relative to the following items for presses used in the PSDI mode. (1) Cup wheels. 1910.1096 Ionizing radiation. 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. 1910.217 Mechanical power presses. 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; . (6) Multiple wheel mounting. (x) Foot operated tripping controls, if used, shall be protected so as to prevent operation from falling or moving objects, or from unintended operation by accidental stepping onto the foot control. Nonmandatory supplementary information and guidelines relating to certification/validation of the PSDI safety system are provided to appendix B to this standard. (13) Control reliability. (60) Brake monitor means a sensor designed, constructed, and arranged to monitor the effectiveness of the press braking system. contact the publishing agency. (52) Stop control means an operator control designed to immediately deactivate the clutch control and activate the brake to stop slide motion. b. (1) Safety cylinder head. 1910.1014 2-Acetylaminofluorene. When dies are being changed or maintenance is being performed on the press, the following shall be accomplished: (i) The power to the press shall be locked out. 1910.28 Duty to have fall protection and falling object protection. (2) Ambient relative humidity of 99 percent. Hangers. (2) Guard design. (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. When more than one wheel is mounted between a single set of flanges, wheels may be cemented together or separated by specially designed spacers. The basement, tower, or room occupied by transmission equipment is locked against unauthorized entrance. 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. 1910.1008 bis-Chloromethyl ether. If the deficiencies are not corrected, OSHA may revoke recognition, effective in 60 days, unless the validation organization requests a hearing within that time. (58) Unitized tooling means a type of die in which the upper and lower members are incorporated into a selfcontained unit so arranged as to hold the die members in alignment. The driving point of all friction drives when exposed to contact shall be guarded, all arm or spoke friction drives and all web friction drives with holes in the web shall be entirely enclosed, and all projecting belts on friction drives where exposed to contact shall be guarded. a. 7. Bearings shall be kept in alignment and properly adjusted. 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. Bearings. (iii) Types 16, 17, 18, 18R, and 19 cones, plugs, and threaded hole pot balls where the work offers protection. (2) Arbor size. 1910.30 Training requirements. The midrail may be one by four (1 x 4) inches or more. This requirement shall apply only to those clutch/brake air-valve controls manufactured and installed on or after August 31, 1971, but shall not apply to machines intended only for continuous, automatic feeding applications. 1910.34 Coverage and definitions. (xiii) The clutch/brake control shall automatically deactivate in event of failure of the power or pressure supply for the clutch engaging means. (2) Calender means a machine equipped with two or more metal rolls revolving in opposite directions and used for continuously sheeting or plying up rubber and plastics compounds and for frictioning or coating materials with rubber and plastics compounds. (46) Press means a mechanically powered machine that shears, punches, forms or assembles metal or other material by means of cutting, shaping, or combination dies attached to slides. All projecting keys, setscrews, and other projections in revolving parts shall be removed or made flush or guarded by metal cover. (ii) Tap wheels about 45 each side of the vertical centerline and about 1 or 2 inches from the periphery as indicated by the spots in Figure O-25 and Figure O-26. 1910.509Incorporation by reference. This monitor shall stop slide motion and prevent successive press strokes if decoupling occurs, or if the monitor itself fails. (ii) A pad with a nonslip contact area shall be firmly attached to the pedal. It is recommended that old installations be changed to conform to this rule. (i) A two-hand trip shall have the individual operator's hand controls protected against unintentional operation and have the individual operator's hand controls arranged by design and construction and/or separation to require the use of both hands to trip the press and use a control arrangement requiring concurrent operation of the individual operator's hand controls. (53) Stripper means a mechanism or die part for removing the parts or material from the punch. Under this provision, a catwalk or runway must be at least 18 inches wide. This is where OSHA comes into the picture. Mills and calenders in the rubber and plastics industries. here. f. The applicant shall certify that the information submitted is accurate. The press manufacturer's recommendations shall be followed. above floor level. (viii) The two hand trip device shall protect the operator as specified in paragraph (c)(3)(i)(e) of this section. (4) Hand feeding tools. This does not apply to constant pressure controls used only for setup purposes. 29 CFR 1910 Subpart O - Machinery and Machine Guarding - 1910.212 General Requirements for All Machines 29 CFR 1926 Subpart N - Helicopters, Hoists, Elevators, and Conveyors - 1926.555 Conveyors U.S. Occupational Safety and Health Administration Publication, "Safeguarding Equipment and Protecting Employees from Amputations", OSHA 3170-02R, 2007 The Part 1910 - OSHA General Industry regulations book is designed to assist you in meeting OSHA requirements. 1910.160 Fixed extinguishing systems, general. 1910.107 Spray finishing using flammable and combustible materials. Usually used for preforming, roll forging is often employed to reduce thickness and increase length of stock. 11. See paragraph (c) of 1910.215 for full description. (1) Veneer slicer knives shall be guarded to prevent accidental contact with knife edge, at both front and rear. 1910.111 Storage and handling of anhydrous ammonia. (v) Air counterbalance cylinders shall incorporate means to prevent failure of capability (sudden loss of pressure) in event of air supply failure. Cold trimming presses shall be safeguarded in accordance with 1910.217(c). They are reinforced, organic bonded, offset hub type wheels, usually 16 inches diameter and larger, specially designed for use on cutting-off machines where mounting nut or outer flange interference cannot be tolerated. (2) Hand-operated gears. (1) General requirements. Such stopping distances shall be subject to engineering determination. 1910.1015 4-Dimethylaminoazobenzene. (C) A check shall be made to determine that all supplemental safeguarding is in place. A. On presses with provision for manual lubrication of flywheel or bullgear bearings, lubrication shall be provided according to the press manufacturer's recommendations. The use of belt poles as substitutes for mechanical shifters is not recommended. 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. (14) Brake system monitoring. Dp = Penetration depth factor, required to provide for possible penetration through the presence sensing field by fingers or hand before detection occurs. (i) Any press equipped with presence sensing devices for use in PSDI, or for supplemental safeguarding on presses used in the PSDI mode, shall be equipped with a test rod of diameter specified by the presence sensing device manufacturer to represent the minimum object sensitivity of the sensing field. Instructions for use of the test rod shall be noted on a label affixed to the presence sensing device. (6) Emphasis is placed upon the importance of maintaining cleanliness around woodworking machinery, particularly as regards the effective functioning of guards and the prevention of fire hazards in switch enclosures, bearings, and motors. The upper rail shall be two by four (2 x 4) inches, or two one by four (1 x 4) strips, one at the top and one at the side of posts. (a) 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. 6. 2. The machine guarding standard, 29 Code of Federal Regulations (CFR 1910.212), always seems to make OSHA's Top 10 Most Frequently Cited list. (12) Upsetters (or forging machines, or headers) type of forging equipment, related to the mechanical press, in which the main forming energy is applied horizontally to the workpiece which is gripped and held by prior action of the dies.
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