§ 7.146. Counterweights.

 (a)  Counterweights, when used, shall operate in guides located within the elevator shaftway, in accordance with the requirements of §  7.52(d) (relating to shaftway equipment).

 (b)  If a car counterweight is used, it shall not be of sufficient weight to cause slackening of any car hoist cable at the start or stop of the car.

 (c)  The counterweight sections, whether or not carried in a frame, shall be fastened together to prevent rattle and displacement.

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