WAC 296-807-18010   Make sure machines have safety guards.  

     You must:

     • Use abrasive wheels only on machines that have safety guards.

     • Make sure the safety guard:

     – Is mounted so it maintains proper alignment with the wheel

     – Is mounted with fasteners strong enough to keep the guard in position if a wheel breaks

     – Is positioned to deflect pieces of an accidentally broken wheel away from the operator

     – Covers the spindle end, nut, and flange projections.

     Exemption:

     Safety guards are not required on machines that use:

     • Wheels for internal grinding while advancing, retracting or within the work

     • Mounted wheels two inches or less in diameter

     • Types 16, 17, 18, 18R, and 19 cones and plugs and threaded hole pot balls where:

     – The work offers protection

     OR

     – The size does not exceed three inches in diameter by five inches long.

     • Notched, segmented, or continuous rim metal centered diamond lapidary wheels that are:

     – Used with a coolant deflector

     AND

     – Operated at 3,500 SFPM or less.

     • Type 1 wheels that are:

     – Two inches or less in diameter

     – One-half inch or less thick

     – Operating at peripheral speeds less than 1,800 SFPM

     – Mounted on mandrels and used in portable drills.

     • Type 1 reinforced wheels that are:

     – Three inches or less in diameter one-quarter inch or less thick

     – Operating at peripheral speeds of 9,500 SFPM or less

     – Used by operators wearing safety glasses and face shields.

     • Valve seating grinding wheels.



[Statutory Authority: RCW 49.17.010, [49.17].040,[49.17].050 , and [49.17].060. 03-09-009, § 296-807-18010, filed 4/4/03, effective 8/1/03.]