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WACs > Title 296 > Chapter 296-806 > Section 296-806-40506
296-806-40504
296-806-40508
Agency filings affecting this section
WAC 296-806-40506
Make sure safety guards meet specific requirements.
You must:
⢠Make sure the machine safety guards meet the requirements of Table 405-1, Guard Requirements.
Definition:
Maximum exposure angle is the largest part of a wheel that does not need to be covered by a safety guard.
Note:
⢠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.
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⢠Visors and other accessory equipment are used in determining the size of the guard opening only if they are at least as strong as the safety guard.
Table 405-1
Guard Requirements
Machine Maximum exposure angle and other guard restrictions
Bench, pedestal, or floorstand grinders ⢠Not higher than sixty-five degrees above the horizontal centerline of the wheel
⢠One-fourth (ninety degrees) of the wheel for grinding done at or above the horizontal centerline of the wheel
⢠One hundred twenty-five degrees if the work has to contact the wheel below the horizontal centerline of the wheel
Cylindrical grinders ⢠One-half (one hundred eighty degrees) of the wheel
⢠Not higher than sixty-five degrees above the horizontal centerline of the wheel
Surface grinders ⢠One hundred fifty degrees of the wheel
⢠Not higher than fifteen degrees below the horizontal
Cutting-off machines ⢠One-half (one hundred eighty degrees) of the wheel
Swing frame grinders ⢠One-half (one hundred eighty degrees) of the wheel
⢠Encloses the top one-half of the wheel
Swing frame grinders using cup wheels ⢠One-half (one hundred eighty degrees) of the wheel
⢠Covers the wheel on the side towards the operator
Semiautomatic snagging machines ⢠One-half (one hundred eighty degrees) of the wheel
⢠Covers the wheel on the side towards the operator
Machines used for top grinding â¢As small as possible up to one-sixth (sixty degrees) of the wheel
[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. WSR 04-14-028, § 296-806-40506, filed 6/29/04, effective 1/1/05.]