Chapter 296-806 Machine safety.

Abrasive wheel. A grinding tool consisting of bonded abrasive grains. This includes diamond and reinforced wheels.Adjustable barrier guard. A barrier guard with provisions for adjustment to accommodate various jobs or tooling set-ups.Air-lift hammer. A type of gravity drop hammer…

Machines and their moving parts create the potential for workplace injuries. Installed and used properly safeguards can protect workers by helping to reduce or control machine hazards.This chapter applies if you have machines or machine operations in your workplace. For requireme…

SummaryThis section applies to all machines in your workplace. It is organized into the following four categories:(1) General requirements.(2) Safeguarding requirements.(3) Safeguarding methods.(4) Requirements for specific machine hazards.Reference:In addition to the requirement…

You must make sure machines designed to stay in one place are secured so they will not move or change position during use.EXEMPTION:Machines that have either rubber feet or foot pads made of nonskid (high coefficient of friction) or similar vibration dampening materials do not ha…

You must make sure employees working around dangerous machines are protected from slipping on smooth, oily, or otherwise slippery floors by providing one of the following types of floor covering:(1) Nonslip matting.(2) Grating.(3) Nonslip composition flooring.(4) Some other effec…

(1) You must make sure work areas around machinery are designed with enough space so each operator:(a) Can clean and handle material without interference from other workers or machines.(b) Does not have to stand in the way of passing traffic.(2) You must provide enough space so e…

You must meet the requirements…in this section:Make sure operating controls meet these requirementsWAC 296-806-20008Protect employees from unintentional machine operationWAC 296-806-20010Make sure emergency stop controls meet these requirementsWAC 296-806-20012Control machine vib…

EXEMPTION:This rule does not apply to constant pressure controls used only for setup.(1) You must make sure each machine has a control that both:(a) Stops the machine; and(b) Can be reached by the operator without leaving the operator's position.(2) You must make sure the operato…

(1) You must make sure foot-operated controls are located or guarded so that unintentional movement to the "on" position is unlikely.(2) You must make sure machines will not automatically restart when power is restored after a power failure, if restarting would create a hazard fo…

You must make sure emergency stop controls, if required, meet all the following:(1) Are red in color.(2) Are easily reached from the operator's normal work position.(3) Are kept in a good working condition.(4) Have to be manually reset before a machine can be restarted.[Statutory…

You must prevent excessive machine vibration that could create a hazard to employees.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-20014, filed 12/1/15, effective 1/5/16; WSR 04-14-028, § 296-806-20014, filed 6/29/04, effective 1/1…

You must operate tools and equipment within their rated speed.Note:Actions that could cause an overspeed condition include: 1. Installing a more powerful motor. 2. Changing or increasing the power source. 3. Changing attachment size or type, such as a blade or wheel. The attachme…

You must make sure hand feeding and retrieval tools:(1) Are suitable for the work to be done.(2) Do not create a hazard when used.(3) Are of a size and shape that will keep the operator's hands outside the hazardous area.(4) Are constructed so they will not shatter if they come i…

EXEMPTION:This rule does not apply if the machine has to be in motion to properly adjust it.You must make sure power-driven machinery is completely stopped before either:(1) Making adjustments or repairs; or(2) Removing material or refuse from the machine.Reference:For requiremen…

You must meet the requirements…in this section:Keep power transmission equipment in good working conditionWAC 296-806-20022Inspect power transmission partsWAC 296-806-20024Protect employees lubricating moving machineryWAC 296-806-20026[Statutory Authority: RCW 49.17.010, 49.17.04…

(1) You must make sure power transmission parts are kept in good working condition at all times.(2) You must keep bearings free from lost motion and well lubricated.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-20022, filed 12/1/15…

You must inspect power transmission parts at least once every sixty days to make sure that all:(1) Safeguarding meets the requirements of this chapter.(2) Parts are in proper alignment.(3) Bolts and screws that hold power transmission parts together or support the system are tigh…

(1) You must protect employees who lubricate moving machinery by:(a) Providing tools, such as oil cans or grease guns, that have spouts or necks that are long enough to keep the employees' hands out of hazardous areas.(b) Requiring employees to wear closely fitted clothing.Note:T…

You must meet the requirements…in this section:Safeguard employees from the point of operationWAC 296-806-20028Safeguard employees from nip or shear point hazardsWAC 296-806-20030Safeguard employees from rotating or revolving partsWAC 296-806-20032Safeguard employees from recipro…

Important:If a specific safeguarding method in this chapter is required for machinery or machine parts found in your workplace, follow the specific requirement.In the absence of a specific safeguarding method required by this or some other chapter, you need to choose a method or …

You must protect employees from hazards created by nip or shear points by using one or more safeguarding methods.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-20030, filed 12/1/15, effective 1/5/16; WSR 04-14-028, § 296-806-20030, …

You must protect employees from hazards created by rotating or revolving parts by using one or more safeguarding methods.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-20032, filed 12/1/15, effective 1/5/16; WSR 04-14-028, § 296-806…

You must protect employees from hazards created by reciprocating or other moving parts by using one or more safeguarding methods.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-20034, filed 12/1/15, effective 1/5/16; WSR 04-14-028, §…

You must protect employees from hazards created by flying objects, including chips, sparks, and fluids by using one or more safeguarding methods.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-20036, filed 12/1/15, effective 1/5/16; …

You must protect employees from hazards created by falling objects by using one or more safeguarding methods.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-20038, filed 12/1/15, effective 1/5/16; WSR 04-14-028, § 296-806-20038, file…

You must safeguard employees from hazards created by moving surfaces with hazards such as sharp edges, burrs, and protruding nails and bolts.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-20040, filed 12/1/15, effective 1/5/16; WSR …

GuardsYou must meet the requirements…in this section:Make sure guards meet these requirementsWAC 296-806-20042[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-20041, filed 12/1/15, effective 1/5/16.]

(1) You must make sure guards do not create additional hazards such as sharp edges or pinch points between the guard and moving machine parts.(2) You must make sure guards are:(a) Made of durable materials.(b) Strong enough to withstand the forces to which they are exposed.(c) Se…

You must meet the requirements…in this section:Make sure devices meet these requirementsWAC 296-806-20044Make sure light curtains meet these requirementsWAC 296-806-20046Make sure pressure-sensitive mats meet these requirementsWAC 296-806-20048Make sure restraint or pullback devi…

You must make sure devices used to safeguard employees do either of the following:(1) Stop the motion of a moving part before an employee comes in contact with it and has to be manually reset before machines can be restarted; or(2) Be designed and constructed to prevent the opera…

Important:All devices must meet the general requirements for devices found in, Make sure devices meet these requirements, WAC 296-806-20044.(1) You must make sure light curtains, when used:(a) Respond to the presence of an operator's hand, other body part, or a work piece.(b) Hav…

Important:All devices must meet the general requirements for devices found in, Make sure devices meet these requirements, WAC 296-806-20044.You must make sure pressure-sensitive mats:(1) Detect the presence or absence of the operator or others.(2) Send the stop command and preven…

Important:All devices must meet the general requirements for devices found in, Make sure devices meet these requirements, WAC 296-806-20044.You must make sure restraint or pullback devices:(1) Prevent the operator from reaching into the point of operation or withdraw the operator…

Important:All devices must meet the general requirements for devices found in, Make sure devices meet these requirements, WAC 296-806-20044.You must make sure two-hand devices:(1) Protect each hand device against accidental operation.(2) Require simultaneous operation of both han…

Important:All devices must meet the general requirements for devices found in, Make sure devices meet these requirements, WAC 296-806-20044.(1) You must make sure movable barrier devices:(a) Return to the open position if they encounter an obstruction while enclosing the hazardou…

You must meet the requirements…in this section:Make sure safeguarding by distance meets these requirementsWAC 296-806-20056Make sure guardrails used for safeguarding meet these requirementsWAC 296-806-20058[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR …

You must make sure means used to safeguard by distance do both of the following:(1) Prevent parts or material from falling on employees below; and(2) Separate employees on fixed ladders, stairs, floors, or other walking or working surfaces from the hazard by:(a) More than seven f…

Note:Guardrails may be used to safeguard: 1. Flywheels. 2. Cranks and connecting rods. 3. Tail rods and extension piston rods. 4. Horizontal belts in a power generating room. 5. Clutches, cutoff couplings, or clutch pulleys in an engine room occupied only by an attendant. 6. Powe…

You must meet the requirements…in this section:Fit arbors and mandrels to the machineWAC 296-806-30002Safeguard belt and rope drivesWAC 296-806-30004Make sure belt or rope drives meet these requirementsWAC 296-806-30006Protect employees while shifting belts on belt and pulley dri…

(1) You must make sure that arbors and mandrels:(a) Have firm and secure bearing.(b) Are free from play.(2) You must only place or mount attachments on a machine arbor that have been accurately machined to the correct size and shape.[Statutory Authority: RCW 49.17.010, 49.17.040,…

EXEMPTION:1. You do not need to safeguard the following types of belts when they are operating at two hundred and fifty linear feet per minute or less: a. Flat belts that are: i. One inch wide or less. ii. Two inches wide or less and have no metal lacings or fasteners. b. Round b…

(1) You must use an idler when your machine uses a quarter-twist belt that can run in either direction.(2) You must make sure, when it is necessary to apply dressing to moving belts or ropes, that you apply the dressing at a point where the belts or ropes leave the pulley.(3) You…

EXEMPTION:A belt shifter is not required on a belt and pulley system if: 1. It was installed on or before August 17, 1971; or 2. The belt and pulley drive meets all of these requirements: a. The belt is endless or laced with rawhide. b. A nip point guard in front of the cone safe…

(1) You must make sure belt tighteners:(a) Are substantially constructed and securely fastened.(b) Have bearings that are securely capped.(c) Have a mechanism to prevent them from falling.(2) You must make sure belt tighteners used to activate machinery are securely held in the "…

(1) You must safeguard cams, connecting rods, tail rods, or extension piston rods that could be contacted by employees.Reference:In the absence of a specific safeguarding method, follow the safeguarding requirements found in safeguarding methods, WAC 296-806-20042 through 296-806…

EXEMPTION:This section does not apply to hand-operated sprockets.(1) You must enclose chains and sprocket wheels that are seven feet or less above the floor or working surface.(2) You must make sure chain and sprocket drive enclosures that extend over machine or other working are…

Reference:In the absence of a specific safeguarding method, follow the safeguarding requirements found in safeguarding methods, WAC 296-806-20042 through 296-806-20058. Examples of safeguarding methods include: 1. Guards. 2. Devices. 3. Safeguarding by distance. 4. Safeguarding b…

You must meet the requirements…in this section:Safeguard flywheelsWAC 296-806-30018Safeguard gearsWAC 296-806-30020Safeguard projections on moving partsWAC 296-806-30022Safeguard pulleysWAC 296-806-30024Make sure pulleys meet these requirementsWAC 296-806-30026Safeguard revolving…

(1) You must safeguard flywheels that have any part of the wheel seven feet or less above the floor or working surface with either:(a) An enclosure; or(b) A guardrail, at least fifteen inches but no more than twenty inches from the rim.(2) You must make sure enclosures that safeg…

You must safeguard gears that are seven feet or less above the floor or working surface.Reference:In the absence of a specific safeguarding method, follow the safeguarding requirements found in safeguarding methods, WAC 296-806-20042 through 296-806-20058. Examples of safeguardin…