Wash. Admin. Code § 296-806-40506
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 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 65 degrees above the horizontal centerline of the wheel * 1/4 (90 degrees) of the wheel for grinding done at or above the horizontal centerline of the wheel * 125 degrees if the work has to contact the wheel below the horizontal centerline of the wheel |
Cylindrical grinders | * 1/2 (180 degrees) of the wheel * Not higher than 65 degrees above the horizontal centerline of the wheel |
Surface grinders | * 150 degrees of the wheel * Not higher than 15 degrees below the horizontal |
Cutting-off machines | * 1/2 (180 degrees) of the wheel |
Swing frame grinders | * 1/2 (180 degrees) of the wheel * Encloses the top 1/2 of the wheel |
Swing frame grinders using cup wheels | * 1/2 (180 degrees) of the wheel * Covers the wheel on the side towards the operator |
Semiautomatic snagging machines | * 1/2 (180 degrees) of the wheel * Covers the wheel on the side towards the operator |
Machines used for top grinding | * As small as possible up to 1/6 (60 degrees) of the wheel |
Wash. Admin. Code § 296-806-40506
Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. 04-14-028, § 296-806-40506, filed 6/29/04, effective 1/1/05.