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(a) Horizontal food mixers shall have a cover/enclosure with an interlocking device so arranged that power cannot be applied to the agitators unless the cover/enclosure is in place on the mixer. Only minor openings in the cover/enclosure, such as ingredient doors, flour inlets, etc., each representing less than 1 1/2 square feet in area shall be capable of being opened while the mixer is in operation.
(b) Horizontal nontilting dough mixers with front discharge doors shall have safety controls so arranged that power cannot be applied to the agitator with the front discharge doors in the open position unless two-handed controls are concurrently utilized.
(c) Horizontal tilting food mixers, when tilted, shall be operated with the cover open only:
(1) If equipped with an electrical "inch" device designed to prevent the operator from reaching into the mixer by requiring the concurrent use of both hands to actuate the mixer or by being a single control protected against accidental actuation and so located that the operator cannot reach into the mixer while operating the single control, or
(2) If belt driven, the belt shifter shall be so arranged that it will move the belt to the loose pulley and hold it there while the mixer bowl is tilted and uncovered, unless the operator holds the belt on the tight pulley. The belt shifter must be so located that the operator cannot reach into the bowl while holding the shifter, or
(3) If clutch driven, the clutch lever shall be so arranged that it will move the clutch out of engagement and hold it out while the mixer is tilted or uncovered, unless the operator holds the clutch in engagement. The clutch lever shall be so located that the operator cannot reach into the bowl while holding the lever.
NOTE: When a push button circuit is used, it is recommended that there should be installed in the circuit a loose fitting piston type inverse time relay designed to open the circuit at the end of one second operation.
EXCEPTION: Mechanically fed and discharged horizontal tilting type food mixers in inaccessible locations.
(d) Vertical mixers shall have bowl locking devices of a positive type which require the attention of the operator for unlocking. Devices shall be made available for moving bowls weighing more than 80 pounds, with contents, into and out of the mixing position on the machine.
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
1. Amendment filed 7-13-78; effective thirtieth day thereafter (Register 78, No. 28).
2. Amendment filed 2-20-80; effective thirtieth day thereafter (Register 80, No. 8).
3. Amendment of subsection (c) filed 3-7-80; effective thirtieth day thereafter (Register 80, No. 10).
4. Amendment filed 5-1-86; effective thirtieth day thereafter (Register 86, No. 19).
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