Occupational Safety and Health Admin., Labor § 1918.53

the boom independent of working guys cm) diameter wire rope shall be suffi- unless, for cast fittings, the strength of cient. the fitting exceeds the total strength (2) If the heel block is not so rigged of all lines secured to it. Any tails, fit- as to prevent its falling when not under tings, or other means of making the strain, it shall be secured to prevent al- preventers fast on the deck shall pro- ternate raising and dropping of the vide strength equal to that of the pre- block. This requirement shall not venter itself. apply when the heel block is at least 10 (2) Wire rope clips or knots shall not feet (3.05 m) above the deck when at its be used to form eyes in, nor to join sec- lowest point. tions of, preventer guys. (e) Coaming rollers. Portable coaming (b) Stoppers. (1) Chain topping lift rollers shall be secured by wire pre- stoppers shall be in good condition, venters in addition to the regular coa- equipped with fiber tails, and long ming clamps. enough to allow not fewer than three (f) Cargo hooks. Cargo hooks shall be half-hitches in the chain. as close to the junction of the falls as (2) Chain stoppers shall be shackled the assembly permits, but never far- or otherwise secured so that their links ther than two feet (.61 m) from it. Ex- are not bent by being passed around ception: This provision shall not apply fittings. The point of attachment shall when the construction of the vessel and be of sufficient strength and so placed the operation in progress are such that that the stoppers are in line with the fall angles are less than 120 degrees. normal topping lift lead at the time Overhaul chains shall not be shortened the stopper is applied. by bolting or knotting. (3) Patent stoppers of the clamp type [62 FR 40202, July 25, 1997, as amended at 65 shall be appropriate for the size of the FR 40944, June 30, 2000] rope used. Clamps shall be in good con- dition and free of any substance that § 1918.53 Cargo winches. would prevent their being drawn tight. (a) Moving parts of winches and other (c) Falls. (1) The end of the winch fall deck machinery shall be guarded. shall be secured to the drum by clamps, (b) Winches shall not be used if con- U-bolts, shackles, or other equally trol levers operate with excessive fric- strong methods. Fiber rope fastenings tion or excessive play. shall not be used. (c) Double gear winches or other (2) Winch falls shall not be used with winches equipped with a clutch shall fewer than three turns on the winch not be used unless a positive means of drum. locking the gear shift is provided. (3) Eyes in the ends of wire rope (d) There shall be no load other than cargo falls shall not be formed by the fall and cargo hook assembly on knots and, in single part falls, shall not the winch when changing gears on a be formed by wire rope clips. two-gear winch. (4) When the design of the winch per- (e) Any defect or malfunction of mits, the fall shall be wound on the winches that could endanger employees drum so that the cargo hook rises when shall be reported immediately to the the winch control lever is pulled back officer in charge of the vessel, and the and lowers when the lever is pushed winch shall not be used until the defect forward. or malfunction is corrected. (d) Heel blocks. (1) When an employee (f) Temporary seats and shelters for works in the bight formed by the heel winch drivers that create a hazard to block, a preventer at least three-quar- the winch operator or other employees ters of an inch (1.91 cm) in diameter shall not be used. wire rope shall be securely rigged, or (g) Except for short handles on wheel equally effective means shall be taken, type controls, winch drivers shall not to hold the block and fall if the heel be permitted to use winch control ex- block attachments fail. Where physical tension levers unless they are provided limitations prohibit the fitting of a by either the ship or the employer. wire rope preventer of the required Such levers shall be of adequate size, two turns of a one-half inch (1.27 strength and securely fastened with

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metal connections at the fulcrum and standing or other running rigging. Ex- at the permanent control lever. ception: Rigging shall not be construed (h) Extension control levers that to mean hatch coamings or other simi- tend to fall due to their own weight lar structural parts of the vessel. shall be counterbalanced. (f) Bull wire. (1) Where a bull wire is (i) Winch brakes shall be monitored taken to a winch head for lowering or during use. If winch brakes are unable topping a boom, the bull wire shall be to hold the load, the winch shall be re- secured to the winch head by shackle moved from service. or other equally strong method. Secur- (j) Winches shall not be used when ing by fiber rope fastening does not one or more control points, either meet this requirement. hoisting or lowering, are not operating (2) When, in lowering or topping a properly. Only authorized personnel boom, it is not possible to secure the shall adjust control systems. bull wire to the winch head, or when (k) When winches are left unat- the topping lift itself is taken to the tended, control levers shall be placed winch head, at least five turns of wire in the neutral position and the power shall be used. shall be shut off or control levers shall (g) Trimming and deckloads. When be locked at the winch or the operating deck loads extend above the rail and controls. there is less than 12 inches (30.48 cm) horizontal clearance between the edge § 1918.54 Rigging gear. of the deck load and the inside of the (a) Guy and preventer placement. Each bulwark or rail, a pendant or other al- guy or preventer shall be placed to pre- ternate device shall be provided to vent it from making contact with any allow trimming of the gear and to pre- other guy, preventer, or stay. vent employees from going over the (b) Guys. When alternate positions side. for securing guys are provided, the guys shall be so placed as to produce a [62 FR 40202, July 25, 1997, as amended at 65 minimum stress and not permit the FR 40945, June 30, 2000] boom to jackknife. § 1918.55 Cranes (See also § 1918.11). (c) Boom placement. The head of the midship boom shall be spotted no far- The following requirements shall ther outboard of the coaming than is apply to the use of cranes forming part necessary for control of the load. of a vessel’s permanent equipment. (d) Preventers. (1) Preventers shall be (a) Defects. Cranes with a visible or properly secured to suitable fittings known defect that affects safe oper- other than those to which the guys are ation shall not be used. Defects shall be secured, and shall be as nearly parallel reported immediately to the officer in to the guys as the fittings will permit. charge of the vessel. (2) Unless the cleat is also a chock (b) Operator’s station. (1) Cranes with and the hauling part is led through the missing, broken, cracked, scratched, or chock opening, the leads of preventers dirty glass (or equivalent) that impairs to cleats shall be such that the direc- operator visibility shall not be used. tion of the line pull of the preventer is (2) Clothing, tools and equipment as parallel as possible to the plane of shall be stored so as not to interfere the surface on which the cleat is with access, operation or the operator’s mounted. view. (3) Guys and associated preventers (c) Cargo operations. (1) Accessible shall be adjusted to share the load as areas within the swing radius of the equally as possible where cargo oper- body of a revolving crane or within the ations are being conducted by travel of a shipboard gantry crane shall burtoning. Exception: Where guys are be physically guarded or other equally designed and intended for trimming effective means shall be taken during purposes only, and the preventer is in- operations to prevent an employee tended to do the function of the guy, from being caught between the body of the guy may be left slack. the crane and any fixed structure, or (e) Cargo falls. Cargo falls under load between parts of the crane. Verbal shall not be permitted to chafe on any warnings to employees to avoid the

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