EXEMPTION: | The full enclosure does not have to remain closed if the mixer has a dumping arrangement that provides safety devices where operators must use both hands in either of these situations: |
| 1. When the agitator is in motion under power and the bowl is open more than one-fifth of its total opening; or |
| 2. When starting the agitator, if the bowl is open more than one-fifth of its total opening. |
(4) You must make sure overhead covers or doors that can accidentally close are either:
(a) Counterbalanced to remain in the "open" position; or
(b) Provided with a catch, brace, or other positive means to hold them open until the operator releases them.
(5) You must locate valves and controls that regulate the coolant in mixer jackets so they can be accessed without creating hazards to the operator.
[Statutory Authority: RCW
49.17.010,
49.17.040,
49.17.050,
49.17.060. WSR 15-24-102, § 296-806-42562, filed 12/1/15, effective 1/5/16; WSR 04-14-028, § 296-806-42562, filed 6/29/04, effective 1/1/05.]