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(a) On crawler cranes, brakes or other locking means shall be maintained to hold the machine stationary during working cycles on level grade or while the machine is standing on maximum grade recommended for travel. Such brakes or locks shall be arranged to remain in engagement in event of loss of operating pressure or power.
(b) On locomotive cranes, brakes shall be maintained to bring the crane to a stop while descending the maximum grade recommended for travel. In addition, manual brake engagement means shall be maintained to hold the machine stationary on maximum grade recommended for travel. Such means shall be arranged to remain in engagement in event of loss of operating pressure or power.
(c) On a crawler crane, the travel and steering mechanism shall be arranged so that it is not possible for both crawlers to become disconnected simultaneously from the power train and to "freewheel."
NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.
1. Amendment filed 8-29-86; effective thirtieth day thereafter (Register 86, No. 39).
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