Last Update: 12/1/15

Chapter 296-806 WAC

MACHINE SAFETY

WAC Sections

Definitions.
Scope.
Requirements for all machines.
Secure machines designed to stay in one place.
Protect employees from slipping hazards around machinery.
Arrange work areas to avoid creating hazards.
Machine controls and operations.
Make sure operating controls meet these requirements.
Protect employees from unintentional machine operation.
Make sure emergency stop controls meet these requirements.
Control machine vibration.
Prevent overspeed conditions.
Make sure hand feeding and retrieval tools meet these requirements.
Protect employees who are adjusting or repairing machinery.
Power transmission parts.
Keep power transmission equipment in good working condition.
Inspect power transmission parts.
Protect employees lubricating moving machinery.
Safeguarding requirements.
Safeguard employees from the point of operation.
Safeguard employees from nip or shear point hazards.
Safeguard employees from rotating or revolving parts.
Safeguard employees from reciprocating or other moving parts.
Safeguard employees from flying objects.
Safeguard employees from falling objects.
Safeguard employees from moving surfaces with hazards.
Safeguarding methods.
Make sure guards meet these requirements.
Devices.
Make sure devices meet these requirements.
Make sure light curtains meet these requirements.
Make sure pressure-sensitive mats meet these requirements.
Make sure restraint or pullback devices meet these requirements.
Make sure two-hand devices meet these requirements.
Make sure devices used with barrier guards meet these requirements.
Distance.
Make sure safeguarding by distance meets these requirements.
Make sure guardrails used for safeguarding meet these requirements.
Requirements for specific machine hazards.
Fit arbors and mandrels to the machine.
Safeguard belt and rope drives.
Make sure belt or rope drives meet these requirements.
Protect employees while shifting belts on belt and pulley drives.
Make sure belt tighteners meet these requirements.
Safeguard cams, connecting rods, tail rods, and extension piston rods.
Safeguard chain and sprocket drives.
Safeguard fan blades.
Flywheels.
Safeguard flywheels.
Safeguard gears.
Safeguard projections on moving parts.
Safeguard pulleys.
Make sure pulleys meet these requirements.
Safeguard revolving drums, barrels, and containers.
Safeguard shafting.
Make sure shafting meets these requirements.
Safeguard unused keyways.
Make sure revolving collars meet these requirements.
Safeguard counterweights.
Additional requirements for some machines and machine operations.
Abrasive wheels.
Make sure abrasive wheels and machines are properly designed and constructed.
Make sure machines have safety guards.
Make sure safety guards meet specific requirements.
Provide a tongue guard on bench, pedestal, floorstand, and cylindrical grinders.
Use a work rest for off-hand grinding.
Mounting abrasive wheels.
Make sure abrasive wheels are safe to use.
Mount wheels properly.
Use proper flanges.
Make sure flanges are in good condition.
Use specific flanges for Type 1 cutting-off wheels.
Use specific flanges for Type 27A cutting-off wheels.
Use blotters when required.
Meet specific blotter requirements when using modified Types 6 and 11 wheels (terrazzo).
Calenders.
Provide calender safety controls.
Follow these stopping limit requirements for calenders.
Compactors.
Safeguard hazardous moving parts of stationary compactors.
Follow these requirements for compactor controls.
Follow these requirements for compactor access doors and covers.
Follow these requirements for compactors that cycle automatically.
Conveyors.
Follow these requirements for conveyors.
Provide emergency stops on conveyors.
Label conveyor controls.
Prohibit riding on conveyors.
Provide safe access to conveyors.
Provide backstop or antirunaway devices on incline, decline, or vertical conveyors.
Make only safe alterations to conveyors.
Inspect and replace worn conveyor parts.
Follow these requirements for replacing conveyor parts.
Follow these requirements for spill guards.
Provide pedestrian overpasses for conveyors.
Guard openings to hoppers and chutes.
Install guideposts.
Belt conveyors.
Guard nip points on belt conveyors.
Install emergency stop controllers on overland belt conveyors.
Install belt conveyor overpasses.
Chain converyors.
Safeguard chain conveyors.
Guard return strands on chain conveyors.
Guard chain conveyors that are used as a transfer mechanism.
Elevator conveyors.
Prevent material from falling off of elevator conveyors.
Inclined reciprocating conveyors (shakers).
Provide protection where employees must load shakers.
Provide grating over silo and bunker openings for shuttle conveyors.
Mobile conveyors.
Guard wheels and rails on mobile conveyors.
Prevent hazardous motion on mobile conveyors.
Provide a detector for mobile conveyors.
Provide safe access on mobile conveyors.
Push-bar conveyors.
Guard pusher-bar conveyors.
Roller conveyors.
Prohibit walking on roller-type conveyors.
Use speed controls for roller and wheel conveyors.
Safeguard belt-driven live roller conveyors.
Screw conveyors.
Guard screw conveyors.
Skip hoists.
Provide slack-cable switches on hoists.
Block the skip bucket and counterweight guides.
Protect against wire rope coming off sheaves.
Slat and roller-slat conveyors.
Safeguard slat and roller-slat conveyors.
Towed conveyors.
Provide a safe method for disengaging the tow pin.
Protect employees from moving carts on towed conveyors.
Provide clearances and warnings for carts on towed conveyors.
Mark projections above the floor.
Food processing equipment.
Provide locks on chamber doors of large air conditioning units.
Use proper door locks on rack-type bread coolers.
Provide see-through panels on fermentation room doors.
Cover exposed hot pipes.
Provide extension piping on stationary lubrication fittings.
Provide hoods for pan-washing tanks.
Safeguard proof boxes.
Safeguard storage bins.
Material handling.
Follow these design requirements for bag lifts (bag arm elevators) and chutes.
Follow these requirements for chain tackle.
Safeguard conveyors.
Use properly designed covers for screw conveyors (augers).
Safeguard pallet jacks and hand trucks.
Specific food processing equipment.
Safeguard bakery slicers.
Safeguard bakery wrapping machines.
Provide troughs with antifriction-bearing casters.
Follow these requirements for trough hoists and similar equipment.
Follow these requirements for dividers.
Safeguard manually-fed dough and cross-roll brakes.
Provide a guard or tripping device on reversible dough brakes.
Follow these requirements for doughnut machines.
Follow these requirements for dumpbins and blenders.
Follow these requirements for flour-handling machines.
Follow these requirements for traveling or track-type flour scales.
Follow these requirements for food grinders and cutters.
Provide covers with interlocks on ingredient premixers, emulsifiers, and similar machines.
Follow these requirements for open fat kettles.
Follow these requirements for steam kettles.
Follow these requirements for chocolate melting, refining, and mixing kettles.
Safeguard meat-processing equipment (circular meat-cutting saws).
Follow these requirements for horizontal dough mixers.
Follow these requirements for vertical mixers.
Follow these requirements for mechanical-feed moulders.
Follow these requirements for hand-fed moulders.
Design, install, and construct your ovens according to these requirements.
Properly locate emergency "stop" buttons and main shut off valves for ovens.
Inspect and test safety devices on ovens.
Follow these requirements for peanut-cooling trucks.
Follow these requirements for pretzel-rolling, pretzel stick extruding, rotary, and die machines.
Safeguard box and roll-type dough sheeters.
Provide proper enclosures for sifters.
Follow these requirements for sugar and spice pulverizers.
Forging machines.
Follow these safety requirements when using lead and lead casts.
Properly inspect and maintain forging equipment.
Use safety blocks on hammers and presses.
Make sure tongs meet these requirements.
Protect employees when removing scale.
Provide adequate foundations for hammers and presses.
Follow these requirements for manually operated valves and switches.
Hammers.
Use die keys and shims made of proper-grade material.
Provide a safety cylinder head.
Provide a shutoff valve.
Provide a means for cylinder draining.
Follow these requirements for pressure pipes.
Follow these requirements when using board hammers.
Other forge facility equipment.
Protect against sparks from saws.
Garbage waste disposals.
Safeguard garbage (waste) disposal equipment.
Glue spreaders.
Provide guards and automatic shutoffs on glue spreaders.
Ironworkers.
Safeguard ironworkers point of operation.
Follow these requirements for adjustable restrictors when safeguarding ironworkers.
Lathes.
Provide shields or guards on metal lathes for chip or coolant hazards.
Safeguard work-holding devices (chucks).
Follow these requirements for chip control and handling.
Safeguard power-clamping devices.
Restrain extended workpieces on horizontal lathes.
Woodworking lathes.
Guard cutting heads on profile lathes and swing-head lathes.
Guard cutting heads on turning lathes.
Guard automatic turning lathes.
Guard wood lathes used for turning long pieces of stock.
Mechanical power presses.
Make sure mechanical power presses are properly designed and constructed.
Safeguarding.
Safeguard presses that use unitized tooling.
Protect operators from guidepost hazards.
Safeguard the point of operation.
Make sure point-of-operation guards are properly designed and constructed.
Make sure barrier guards meet these requirements.
Make sure point-of-operation devices are effective.
Make sure presence-sensing devices used to safeguard the point of operation meet these requirements.
Make sure pull-back devices used to safeguard the point of operation meet these requirements.
Make sure restraint (holdout) devices used to safeguard the point of operation meet these requirements.
Make sure two-hand control devices used to safeguard the point of operation meet these requirements.
Make sure two-hand trip devices used to safeguard the point of operation meet these requirements.
Provide additional safeguards when the operator puts one or both hands into the point of operation.
Operations.
Establish die setting procedures.
Handle dies safely.
Protect die setters during setup and tryout.
Train press operators.
Operate mechanical power presses safely.
Provide tools and other means to protect press operators.
Inspect and maintain presses.
Make sure presses and operating practices used in the PSDI (presence sensing device initiation) mode of operation meet these requirements.
Mills.
Meet height requirements for mill rolls.
Provide mill safety controls.
Follow these stopping limit requirements for mills.
Press brakes.
Provide auxiliary safety aids on press brakes.
Safeguard the point of operation on press brakes.
Safe distance safeguarding.
Follow this requirement when using safe distance safeguarding.
Develop a safe distance safeguarding program for press brakes.
Follow these requirements for safe distance training for press brakes.
Require safe distance retraining for press brake operations.
Conduct periodic safe distance inspections on press brakes.
Supervise the safe distance program for press brakes.
Roll-forming and bending machines.
Follow these requirements for machine initiation.
Safeguard nip points of roll-forming and bending machines.
Sanding machines.
Guard drum sanders.
Guard disk sanders.
Guard belt sanders.
Follow these requirements for feed roll guarding.
Saws and cutting heads.
General requirements for all saws and cutting heads.
Protect employees using saws and cutting heads.
Make sure saws and cutting heads are sharpened and tensioned by qualified people.
General requirements for all saws.
Make sure saws are safe to use.
Requirements for all circular saws.
Make sure all circular saws meet these requirements.
Make sure circular saw gages meet these requirements.
Safeguard hand-fed circular table saws.
Provide kickback protection for employees using hand-fed circular table ripsaws when ripping wood products.
Safeguard self-feed circular saws.
Provide kickback protection for self-feed circular ripsaws when ripping wood products.
Guard circular resaws.
Provide spreaders for circular resaws.
Requirements for specific circular saws.
Protect employees from automatic saw hazards.
Guard inverted swing (jump) saws.
Guard miter saws.
Guard radial saws.
Limit the travel of radial saws.
Provide kickback protection for radial saws used for ripping wood products.
Guard revolving double arbor saws.
Guard swing saws.
Limit the travel of swing saws.
Requirements for band saws and drag saws.
Make sure band saws meet these requirements.
Protect employees from drag saw hazards.
General requirements for all cutting heads.
Maintain and balance knives and cutting heads.
Boring and mortising machines.
Make sure boring and mortising machines meet these requirements.
Chipper and hog mills.
Follow these requirements for chipper mills.
Follow these requirements for hog mills.
Protect employees from falling into chipper and hog mills.
Jointers.
Make sure jointers with horizontal cutting heads meet these requirements.
Guard horizontal cutting heads on hand-fed jointers.
Guard vertical cutting heads on jointers.
Molding, sticking and matching machines.
Make sure molding, sticking and matching machines meet these requirements.
Panel raisers and other similar machines.
Guard hand-fed panel raisers and other similar machines.
Planers.
Make sure planers with a horizontal cutting head meet these requirements.
Guard planers.
Guard planer feed rolls.
Provide kickback protection on planers running stock of varied thicknesses.
Shapers.
Make sure shapers meet these requirements.
Tenoning machines.
Guard tenoning machine feed chains and sprockets.
Guard tenoning machines.
Veneer machines.
Guard veneer cutters and wringer knives.
Guard veneer clippers.
Follow these requirements for guarding guillotine cutters.
Provide mechanisms to stop power-driven guillotine cutters.
Prohibit riders on veneer slicer carriages.
Sewing machines.
Guard sewing machine needles.
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