Washington Administrative Code › Title 296 - Labor and Industries, Department of › Chapter 296-155 - Safety standards for construction work › Part R - MISCELLANEOUS CONSTRUCTION REQUIREMENTS › Section 296-155-77100 - Hoists, elevators, excavators, and conveyors

Current through Register Vol. 24-14, July 15, 2024
(1)
Definitions applicable to this
				section.
Accessory
. A secondary part or assembly of parts
				  which contributes to the overall function and usefulness of a machine.
Appointed
. Assigned specific responsibilities by
				  the employer or the employer's representative.
Authorized person
. A person approved or assigned
				  by the employer to perform a specific type of duty or duties or be at a
				  specific location or locations at the workplace.
Auxiliary hoist
. A secondary hoist rope system
				  used either in conjunction with, or independently of, the main hoist
				  system.
Axle
. The shaft or spindle with which or about
				  which a wheel rotates. On wheel-mounted cranes it refers to a type of axle
				  assembly including housings, gearing, differential, bearings, and mounting
				  appurtenances.
Brake
. A device used for retarding or stopping
				  motion.
Clutch
. A means for engagement or disengagement
				  of power.
Commercial truck vehicle
. A commercial motor
				  vehicle designed primarily for the transportation of property in connection
				  with business and industry.
Designated
. Selected or assigned by the employer
				  or the employer's representative as being competent to perform specific
				  duties.
Job site
. Work area defined by the construction
				  contract.
Limiting device
. A mechanical device which is
				  operated by some part of a power driven machine or equipment to control loads
				  or motions of the machine or equipment.
Payload
. That load or loads being transported by
				  the commercial truck chassis from place to place.
Qualified person
. A person who, by possession of
				  a recognized degree or certificate of professional standing, or who, by
				  extensive knowledge, training, and experience, has successfully demonstrated
				  the ability to solve or resolve problems relating to the subject matter and
				  work.
(2)
General
				requirements.
(a) You must
				conspicuously post rated load capacities, and recommended operating speeds, and
				special hazard warnings, or instruction, on all equipment. Instructions or
				warnings must be visible to the operator while at the control
				station.
(b) The operator must
				avoid carrying loads over people.
(c) Operators must observe signals only from
				duly authorized persons. Under no circumstances must you move a load until the
				signal is received from authorized personnel.
(d) You must guard belts, gears, shafts,
				pulleys, sprockets, spindles, drums, fly wheels, chains, or other
				reciprocating, rotating, or other moving parts or equipment if such parts are
				exposed to contact by employees, or otherwise create a hazard. Guarding must
				meet the requirements of chapter 296-806 WAC, Machine safety.
(e) You must guard or insulate all exhaust
				pipes where contact by employees, in the performance of normal duties, is
				possible.
(f) Whenever internal
				combustion engine powered equipment exhaust is in enclosed spaces, you must
				perform and record tests to see that employees are not exposed to unsafe
				concentrations of toxic gases or oxygen deficient atmospheres. See chapter
				296-62 WAC, General occupational health standards and chapter 296-841 WAC,
				identifying and controlling respiratory hazards.
(g) Fuel tank filler pipe must be located in
				such a position, or protected in such a manner, as to not allow spill or
				overflow to run onto the engine, exhaust, or electrical equipment of any
				machine being fueled.
(i) An accessible fire
				extinguisher of 5BC rating, or higher, must be available at all operator
				stations or cabs of equipment.
Note:
For additional requirements relating to
						  portable fire extinguishers see WAC
						  296-800-300.
(ii)
				You must transport, store and handle all fuels to meet the rules of Part D of
				this chapter. When fuel is transported by vehicles on public highways,
				department of transportation rules concerning such vehicular transportation are
				considered applicable.
(h) Except where electrical distribution and
				transmission lines have been deenergized and visibly grounded at point of work
				or where insulating barriers, not a part of or an attachment to the equipment
				or machinery, have been erected to prevent physical contact with the lines, you
				must operate equipment or machines proximate to power lines only in accordance
				with the following:
(i) For lines rated 50 kV
				or below, minimum clearance between the lines and any part of the equipment or
				load must be 10 feet.
(ii) For
				lines rated over 50 kV, minimum clearance between the lines and any part of the
				equipment or load must be 10 feet plus 4/10 inch for each 1 kV over 50 kV, or
				twice the length of the line insulator, but never less than 10 feet.
(iii) In transit with no load and boom
				lowered, the equipment clearance must be a minimum of 4 feet for voltages less
				than 50 kV, and 10 feet for voltages over 50 kV up to and including 345 kV, and
				16 feet for voltages up to and including 750 kV.
(iv) You must designate a person to observe
				clearance of the equipment and give timely warning to insure that the required
				separation is maintained for all operators where it is difficult for the
				operator to maintain the desired clearance by visual means.
(v) You must consider any overhead wire to be
				an energized line unless and until the person owning such line or the
				electrical utility authorities indicate that it is not an energized line and it
				has been visibly grounded.
(vi)
				Prior to work near transmitter tower where an electrical charge can be induced
				in the equipment or materials being handled, you must deenergize the
				transmitter or perform tests to determine if electrical charge is induced on
				the machine.
(i)
				Reserved.
(j) You must take the
				following precautions when necessary to dissipate induced voltage:
(i) The equipment must be provided with an
				electrical ground directly to the upper rotating structure supporting the boom;
				and
(ii) You must attach ground
				jumper cables to materials being handled by boom equipment when electrical
				charge is induced while working near energized transmitters. You must provide
				crews with nonconductive poles having large alligator clips or other similar
				protection to attach the ground cable to the load.
(k) You must not make any modifications or
				additions which affect the capacity or safe operation of the equipment without
				the manufacturer's or a qualified engineer's written approval. If such
				modification or changes are made, you must change the capacity, operation, and
				maintenance instruction plates, tags, or decals, accordingly. In no case must
				the original safety factor of the equipment be reduced.