WAC 296-806-40524   Use blotters when required.  

Exemption:	You do not need to use a blotter with any of the following:
	• Mounted wheels (wheels permanently bonded to a shaft or mandrel).
	• Abrasive disc and Type 2 wheels which are mounted by inserted nuts, inserted washers, or projecting studs.
	• Plate mounted wheels.
	• Wheels mounted in chucks (such as cylinders and segmental wheels).
	• Types 27, 28, and 29 wheels.
	• Type 1 and Type 27A cutting-off wheels.
	• Internal wheels less than two inches in diameter.
	• Diamond and cubic boron nitride wheels with metal or carbon fiber cores.

     You must:

     • Use a blotter between each flange and the abrasive wheel surface to uniformly distribute flange pressure.

     • Make sure the blotter covers the entire flange contact area.

     • Use a new blotter each time a wheel is mounted unless the wheel has a blotter already attached to it by the manufacturer.

     • Make sure scuffed or damaged blotters are not used.



[Statutory Authority: RCW 49.17.010, 49.17.040, 49.17.050, and 49.17.060. 04-14-028, § 296-806-40524, filed 6/29/04, effective 1/1/05.]