Chapter 296-24 General safety and health standards.

[Order 73-5, § 296-24-215, filed 5/9/73 and Order 73-4, § 296-24-215, filed 5/7/73.]

You must allow sufficient safe clearances for aisles, at loading docks, through doorways and wherever turns or passage must be made where mechanical handling equipment is used. You must keep aisles and passageways clear and in good repair, with no obstruction across or in aisles …

You must provide clearance signs to warn of clearance limits.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 15-24-100, § 296-24-21509, filed 12/1/15, effective 1/5/16; Order 73-5, § 296-24-21509, filed 5/9/73 and Order 73-4, § 296-24-21509, filed 5/…

(1) You must ensure that derail and/or bumper blocks are provided on spur railroad tracks where a rolling car could contact other cars being worked, enter a building, work or traffic area. This does not apply to cars being moved by a locomotive, switch engine, donkey engine, or a…

You must provide covers and/or guardrails to protect personnel from the hazards of open pits, tanks, vats, ditches, etc.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 15-24-100, § 296-24-21513, filed 12/1/15, effective 1/5/16; Order 73-5, § 296-24-2…

[Order 73-5, § 296-24-235, filed 5/9/73 and Order 73-4, § 296-24-235, filed 5/7/73.]

ANSI. The American National Standards Institute.Appointed. Assigned specific responsibilities by the employer or the employer's representative.Automatic crane. A crane which when activated operates through a preset cycle or cycles.Auxiliary hoist. A supplemental hoisting unit of …

(1) Application. This section applies to overhead and gantry cranes, including semigantry, cantilever gantry, wall cranes, storage bridge cranes, and others having the same fundamental characteristics. These cranes are grouped because they all have trolleys and similar travel cha…

(1) Cab location.(a) You must ensure that the general arrangement of the cab and the location of control and protective equipment is such that all operating handles are within convenient reach of the operator when facing the area to be served by the load hook, or while facing the…

(1) Location of footwalks.(a) If sufficient headroom is available on cab-operated cranes, you must provide a footwalk on the drive side along the entire length of the bridge of all cranes having the trolley running on the top of the girders. To give sufficient access to the oppos…

(1) Trolley stops.(a) You must ensure that stops are provided at the limits of travel of the trolley.(b) You must ensure that stops are fastened to resist forces applied when contacted.(c) You must ensure that a stop engaging the tread of the wheel is of a height at least equal t…

(1) Brakes for hoists.(a) You must ensure that each independent hoisting unit of a crane is equipped with at least one self-setting brake, hereafter referred to as a holding brake, applied directly to the motor shaft or some part of the gear train.(b) You must ensure that each in…

(1) General.(a) Wiring and equipment must comply with chapter 296-24 WAC Part L, and WAC 296-800-280.(b) The control circuit voltage must not exceed 600 volts for a.c. or d.c. current.(c) The voltage at pendant pushbuttons must not exceed 150 volts for a.c. and 300 volts for d.c.…

(1) Sheaves.(a) You must ensure that sheave grooves are smooth and free from surface defects which could cause rope damage.(b) You must provide sheaves carrying ropes which can be momentarily unloaded with close-fitting guards or other suitable devices to guide the rope back into…

You must provide a gong or other effective warning signal for each crane equipped with a powered traveling mechanism except for floor operated cranes.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 15-24-100, § 296-24-23517, filed 12/1/15, effective …

(1) Inspection classification.(a) Initial inspection. You must perform an initial inspection prior to initial use all new and altered cranes to ensure compliance with the provisions of these standards.(b) Inspection procedure for cranes in regular service is divided into two gene…

(1) Operational tests.(a) Prior to initial use you must test all new and altered cranes to insure compliance with this section including the following functions:(i) Hoisting and lowering.(ii) Trolley travel.(iii) Bridge travel.(iv) Limit switches, locking and safety devices.(b) Y…

(1) Preventive maintenance. You must establish a preventive maintenance program based on the crane manufacturer's recommendations.(2) Maintenance procedure.(a) Before adjustments and repairs are started on a crane you must take the following precautions:(i) The crane to be repair…

(1) Running ropes. You must perform a thorough inspection of all ropes at least once a month and keep a full written, dated, and signed report of rope condition on file where readily available to appointed personnel. You must carefully note any deterioration, resulting in appreci…

(1) Size of load. You must ensure that the crane is not loaded beyond its rated load except for test purposes as provided in WAC 296-24-23521.(2) Attaching the load.(a) You must ensure that the hoist chain or hoist rope is free from kinks or twists and is not be wrapped around th…

(1) You must ensure that cranes are operated only by regular crane operators, authorized substitutes who have had adequate experience and training under the supervision of a competent operator, or by crane repairmen or inspectors.(2) You must ensure that crane operators are able …

(1) Ladders.(a) The employer must ensure that hands are free from encumbrances while personnel are using ladders.(b) You must lift and lower articles which are too large to be carried in pockets or belts by hand line.(2) Cabs.(a) You must store necessary clothing and personal bel…

(1) Scope and application. This standard applies to the design, construction, testing, use and maintenance of personnel platforms, and the hoisting of personnel platforms on the load lines of cranes or derricks.(2) Definitions. For the purposes of this section, the following defi…

(1) You must ensure that chain and electric hoists are of what is known as "all steel construction." No cast iron may be used in parts subject to tension except drums, bearings or brake shoes.(2) You must ensure that the chains are made of the best quality steel or iron with weld…

(1) You must prevent piston rod lock nuts from becoming loose and allowing rod to drop when supporting a load. A lock nut must be secured to piston rod by a castellated nut and cotter-pin.(2) You must use a clevis or other means to prevent hoists cylinder becoming detached from h…

[Order 73-5, § 296-24-240, filed 5/9/73 and Order 73-4, § 296-24-240, filed 5/7/73.]

Accessory. A secondary part or assembly of parts which contributes to the overall function and usefulness of a machine.Angle indicator (boom). An accessory which measures the angle of the boom to the horizontal.ANSI. The American National Standards Institute.Appointed. Assigned s…

(1) Application. This section applies to crawler cranes, locomotive cranes, wheel mounted cranes of both truck and self-propelled wheel type, and any variations thereof which retain the same fundamental characteristics. This section includes only cranes of the above types, which …

(1) Load ratings—Where stability governs lifting performance.(a) The margin of stability for determination of load ratings, with booms of stipulated lengths at stipulated working radii for the various types of crane mountings is established by taking a percentage of the loads whi…

(1) Regular inspection. Inspection procedure for cranes in regular service is divided into two general classifications based upon the intervals at which inspection should be performed. The intervals in turn are dependent upon the nature of the critical components of the crane and…

(1) Operational tests.(a) In addition to prototype tests and quality-control measures, the user of each new production crane must require that it be tested and related data supplied by the manufacturer to the extent necessary to assure compliance with the operational requirements…

(1) You must correct any unsafe conditions disclosed by the inspection requirements of this section before operation of the crane is resumed. Adjustments and repairs must be done only by designated personnel.(2) You must not operate the crane until all guards have been reinstalle…

(1) Running ropes. You must perform a thorough inspection of all ropes in use at least once a month and keep a full written, dated, and signed report of rope condition on file where readily available. All inspections must be performed by an appointed or authorized person. You mus…

(1) Size of load.(a) You must not load any crane beyond the rated load, except for test purposes as provided in WAC 296-24-24009.(b) When loads which are limited by structural competence rather than by stability are to be handled, you must ascertain that the weight of the load ha…

(1) Rail clamps. You must ensure that rail clamps are not used as a means of restraining tipping of a locomotive crane.(2) Ballast or counterweight. You must ensure that cranes are not operated without the full amount of any ballast or counterweight in place as specified by the m…

(1) For operations near overhead electric lines see chapter 296-24 WAC Part L.(2) Boom guards. Cage-type boom guards, insulating links, or proximity warning devices may be used on cranes, but the use of such devices must not operate to alter the requirements of (1) of this sectio…

[Order 73-5, § 296-24-245, filed 5/9/73 and Order 73-4, § 296-24-245, filed 5/7/73.]

A-frame derrick. A derrick in which the boom is hinged from a cross member between the bottom ends of two upright members spread apart at the lower ends and joined at the top; the boom point secured to the junction of the side members, and the side members are braced or guyed fro…

(1) Application. This section applies to guy, stiffleg, basket, breast, gin pole, Chicago boom and A-frame derricks of the stationary type, capable of handling loads at variable reaches and powered by hoists through systems of rope reeving, used to perform lifting hook work, sing…

(1) Rated load marking. You must provide a substantial, durable, and clearly legible rating chart with each derrick and securely affixed where it is visible to personnel responsible for the safe operation of the equipment for permanently installed derricks with fixed lengths of b…

(1) Inspection classification.(a) Prior to initial use you must inspect all new and altered derricks to insure compliance with the provisions of these standards.(b) Inspection procedure for derricks in regular service is divided into two general classifications based upon the int…

(1) Operational tests. Prior to initial use you must test all new and altered derricks to ensure compliance with this section including the following functions:(a) Load hoisting and lowering.(b) Boom up and down.(c) Swing.(d) Operation of clutches and brakes of hoist.(2) Anchorag…

(1) Preventive maintenance. You must establish a preventive maintenance program based on the derrick manufacturer's recommendations.(2) Maintenance procedure.(a) Before adjustments and repairs are started on a derrick you must take the following precautions:(i) You must arrange t…

(1) Running ropes. You must make a thorough inspection of all ropes in use at least once a month and a full written, dated, and signed report of rope condition kept on file where readily available. You must carefully note any deterioration, resulting in appreciable loss of origin…

You must ensure that derrick operation is directed only by the individual specifically designated for that purpose.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 15-24-100, § 296-24-24515, filed 12/1/15, effective 1/5/16; Order 73-5, § 296-24-24515,…

(1) Size of load.(a) You must not load any derrick beyond the rated load.(b) When loads approach the maximum rating of the derrick, you must ascertain that the weight of the load has been determined within plus or minus 10% before it is lifted.(2) Attaching the load.(a) You must …

(1) Guards.(a) You must ensure that exposed moving parts, such as gears, ropes, setscrews, projecting keys, chains, chain sprockets, and reciprocating components, which constitute a hazard under normal operating conditions are guarded.(b) You must ensure that guards are securely …