Chapter 296-806 Machine safety.

You must safeguard revolving drums, barrels, or containers by an enclosure that is interlocked with the drive mechanism so that they cannot revolve unless the enclosure is in place.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-3002…

EXEMPTION:You do not need to safeguard shafting that is in a room, vault, or similar space that contains only power transmission parts or equipment if the space: 1. Is controlled by lock and key or has similarly restricted access that allows only authorized persons to enter. 2. I…

(1) You must keep shafting free of: (a) Excessive oil or grease.(b) Rust or pitting from corrosion.(2) You must secure shafting against excessive endwise movement.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-30032, filed 12/1/15, …

You must fill, cover, or otherwise safeguard all unused keyways.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. Gu…

(1) You must make sure revolving collars are cylindrical.(2) You must make sure screws or bolts used in the collar do not project beyond the outside of the collar.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-30036, filed 12/1/15, …

You must provide safeguarding for all counterweights where employees are exposed to contact.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 safegua…

SummaryIf your specific machine or operation is not listed here, then follow the "Requirements for all machines" found in this chapter, WAC 296-806-200 and 296-806-300.Your responsibility:To protect employees from hazards associated with specific machines and their operations in …

SummaryIn addition to the requirements in this section, you need to refer to the following sections of this chapter in order to fully protect your employees from machine hazards.Requirements for all machines, WAC 296-806-200 and 296-806-300.You need to refer to Portable power too…

(1) You must make sure abrasive wheels and machines, including safety guards and flanges, manufactured on or after January 1, 2005, meet the design and construction requirements of American National Standards Institute (ANSI) B7.1-2000, Safety Requirements for the Use, Care and P…

(1) You must use abrasive wheels only on machines that have safety guards.(2) You must make sure the safety guard:(a) Is mounted so it maintains proper alignment with the wheel.(b) Is mounted with fasteners strong enough to keep the guard in position if a wheel breaks.(c) Covers …

You must make sure the machine safety guards meet the requirements of Table 405-1, Guard Requirements.Note:1. The maximum exposure angle is measured by lines starting at the center of the spindle and extending to the ends of the guard at the wheel periphery. 2. Visors and other a…

You must make sure, if the operator stands in front of the opening in the safety guard, that the safety guard (tongue guard) at the top of the opening is adjusted to within one-fourth inch of the wheel.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-2…

EXEMPTION:You do not need to use a work rest if: 1. The size, shape, weight or finishing area of the workpiece prevents its use; or 2. Contact with the grinding wheel below the horizontal plane of the spindle is necessary.(1) You must use a work rest to support the work.(2) You m…

You must meet the requirements…in this section:Make sure abrasive wheels are safe to useWAC 296-806-40512Mount wheels properlyWAC 296-806-40514Use proper flangesWAC 296-806-40516Make sure flanges are in good conditionWAC 296-806-40518Use specific flanges for Type 1 cutting-off wh…

(1) You must do the following before mounting a wheel:(a) Visually inspect the wheel for cracks or damage.(b) Perform a ring test for cracks if the size and shape of the wheel permits testing.(c) Make sure the spindle speed of the machine is not greater than the operating speed o…

(1) You must make sure wheels fit freely on the spindle, wheel sleeves, or adaptors, and remain free under all grinding conditions.(2) You must make sure wheel, blotter and flange surfaces that contact each other are flat and free of foreign particles.(3) You must make sure any r…

(1) You must mount all abrasive wheels between flanges that have a diameter at least one-third the diameter of the wheel.EXEMPTION:This flange requirement does not apply to the following wheels: 1. Mounted wheels (wheels permanently bonded to a shaft or mandrel). 2. Abrasive disc…

(1) You must make sure flange bearing surfaces are in good condition.(2) You must replace or remachine a flange with a mounting surface that has any of the following problems:(a) Warped.(b) Burred on the bearing surface.(c) Excessively worn (thickness or diameter).(d) Out of true…

You must mount Type 1 cutting-off wheels between flanges that are:(1) Properly relieved with matching bearing surfaces.(2) At least one-fourth the wheel diameter.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-40520, filed 12/1/15, e…

You must mount Type 27A cutting-off wheels between flanges that are:(1) Flat (unrelieved) with matching bearing surfaces; and(2) At least one-fourth the wheel diameter.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-40522, filed 12/1…

EXEMPTION:You do not need to use a blotter with any of the following: 1. Mounted wheels (wheels permanently bonded to a shaft or mandrel). 2. Abrasive disc and Type 2 wheels which are mounted by inserted nuts, inserted washers, or projecting studs. 3. Plate mounted wheels. 4. Whe…

You must apply the blotter to the flat side only when mounting Modified Types 6 and 11 wheels (terrazzo).[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-40526, filed 12/1/15, effective 1/5/16; WSR 04-14-028, § 296-806-40526, filed 6/…

SummaryIn addition to the requirements in this section, you need to refer to the following sections of this chapter in order to fully protect your employees from machine hazards:Requirements for all machines, WAC 296-806-200 and 296-806-300.This section applies only to hazards as…

EXEMPTION:These rules do not apply to calenders if the machinery is permanently set up so employees: 1. Cannot reach through, over, under, or around to come in contact with the roll bite; or 2. Cannot be caught between a roll and nearby objects.(1) You must provide a safety trip …

You must make sure that calenders are stopped within one and three-quarters percent of the fastest speed at which they operate when empty. When calenders operate at more than two hundred fifty feet per minute, stopping distances above one and three-quarters percent of their faste…

SummaryIn addition to the requirements in this section, you need to refer to the following sections of this chapter in order to fully protect your employees from machine hazards:Requirements for all machines, WAC 296-806-200 and 296-806-300.This section applies to all stationary …

(1) You must prevent the compactor from operating while employees have any body parts in the compactor or hazard area.(2) You must provide a safeguarding method that prevents employees from putting hands, fingers, or any body part into the compactor during operation.Note:Examples…

You must follow these requirements for compactor controls:(1) Each control must have its function clearly labeled.(2) Controls must be designed and located to prevent them from unintentionally activating.(3) Electric stop buttons, including emergency stop buttons, must be red in …

(1) You must make sure access covers meet at least one of the following:(a) Interlocked.(b) Secured by a lockable device.(c) Removable by hand tools only.(2) Make sure any loading chamber access door has an interlock system that prevents cycling motion when the door is open.[Stat…

You must use automatic cycling controls only on compactors where the loading chamber is located so that it cannot be accessed during operation.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-41508, filed 12/1/15, effective 1/5/16; WS…

SummaryIf your specific conveyor or operation is not listed here, then follow any general requirements in this section along with the "Requirements for all machines" found in this chapter, WAC 296-806-200 and 296-806-300.This section applies to hazards related to conveyors and co…

(1) You must construct, operate, and maintain all conveyors according to this chapter and the American National Standards Institute (ANSI) B20.1-1957.(2) You must make sure all new conveyors constructed after January 1, 2005, meet the requirements of the American Society of Mecha…

(1) You must make sure each conveyor has an emergency stopping device such as an emergency stop button, pull cord, or similar device.(2) You must make sure each emergency stopping device meets all of the following requirements. They must:(a) Stop the conveyor a safe distance from…

You must clearly label the function of each conveyor control.Note:Controls and wiring that are no longer used should be removed from control stations.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-42006, filed 12/1/15, effective 1/5…

You must prohibit employees from riding on conveyors.EXEMPTION:You do not need to prohibit riding on an assembly conveyor moving eighty feet or less per minute or a conveyor with a station specifically designed for operating personnel.[Statutory Authority: RCW 49.17.010, 49.17.04…

You must provide a way to safely inspect and maintain conveyors located more than seven feet from the floor.Reference:Some additional requirements for protecting employees inspecting and maintaining conveyors can be found in: 1. Lockout/tagout (control of hazardous energy), chapt…

You must make sure all incline, decline, or vertical conveyors use backstop or antirunaway devices when there is a danger of conveyor reversal or runaway.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-42012, filed 12/1/15, effective…

You must make sure, when making conveyor alterations, that you do not affect safety characteristics such as emergency stop controls, guards, or the incline of the conveyor, if such changes would create a danger to workers.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050,…

You must carefully inspect and replace any conveyor part that shows signs of significant wear before it becomes a hazard.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-42016, filed 12/1/15, effective 1/5/16; WSR 04-14-028, § 296-806…

You must make sure replacement conveyor parts are equal to or exceed the manufacturer's specifications.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-42018, filed 12/1/15, effective 1/5/16; WSR 04-14-028, § 296-806-42018, filed 6/29…

You must install protective or spill guards wherever conveyors pass next to or over working areas or passageways. These guards must be designed to catch and hold any materials that may become dislodged or fall off.Reference:For specific requirements when conveyors pass over emerg…

(1) You must provide a pedestrian overpass covering the full width of a passageway if one of these conditions exists:(a) The working strand of a conveyor crosses within three feet of floor level.(b) Workers must step over the strand and trough at or below floor level.(2) You must…

(1) You must guard all openings to hoppers, chutes, and elevator-type conveyors to prevent workers from:(a) Falling or stepping into them.(b) Making any kind of bodily contact with conveyors.Note:Grating provided at floor level with no openings larger than two inches (50 mm) that…

You must install guideposts to direct employees driving trucks, loaders, or other equipment to the pit, hopper, or chute.[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, 49.17.060. WSR 15-24-102, § 296-806-42026, filed 12/1/15, effective 1/5/16; WSR 04-14-028, § 296-806…

You must meet the requirements…in this section:Guard nip points on belt conveyorsWAC 296-806-42028Install emergency stop controllers on overland belt conveyorsWAC 296-806-42030Install belt conveyor overpassesWAC 296-806-42032[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.0…

EXEMPTION:This rule does not normally require guards along the conveyor at the point where the belt rides on return rollers, such as return-belt idlers, unless hazardous conditions such as long, tight heavy belts exist.Return-belt idlersThese turn freely and just idle.You must pl…

You must install permanent emergency pull cords or similar emergency stop controllers at points where workers are normally stationed along overland belt conveyors.Note:Personnel that patrol overland belt conveyors may use portable emergency stop controllers instead of permanently…