Washington Administrative Code
Title 296 - Labor and Industries, Department of
Chapter 296-806 - Machine safety
Section 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.
| 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 |
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.
