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Subchapter 6. Elevator Safety Orders
Article 9. Hydraulic Elevators
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§3054. Bottom and Top Clearances and Runby for Cars and Counterweights.


(a) For Direct-Plunger Elevators. The bottom and top clearances and runby for cars, and for counterweights where provided, shall conform to the following:

(1) The bottom car clearance shall conform to Section 3017(a) provided that, in the determination of the clearance required by Section 3017(a)(1), any under-car bracing which is located within 6 inches horizontally from the edge of the car platform or 3 inches horizontally from the centerline of the guide rails shall not be considered.

(2) The bottom runby of the car shall be not less than 3 inches.

(3) The top runby of the car shall be not less than 6 inches.

(4) Neither the top nor the bottom runby of the car shall be more than 24 inches. The top runby of the hydraulic elevator car is the distance the car platform travels above the top terminal landing when the plunger reaches its extreme limit of travel.

(5) Any fixed structure above the car or crosshead when the plunger is at its extreme limit of travel shall conform to the following:

(A) The distance above a horizontal plane even with the top of the car crosshead and extending 2 feet each side of the crosshead shall be not less than 2 feet.

EXCEPTION: Offset car frames outside the area of the car top that have not less than 12 inches between a horizontal plane even with the top of the crosshead member and any object above.

(B) The distance above any part of the car top shall be not less than 2 feet 6 inches.

(C) The distance above any fixed equipment mounted above the car top shall be not less than 6 inches.

(D) The clearance from the raised guardrails required by Section 3034(a)(9) to the overhead structure shall be not less than 18 inches when the plunger is at its extreme limit of travel in the "up" direction.

(6) Where a counterweight is provided, the top clearance and the bottom runby of the counterweight shall conform to the following:

(A) Top Clearance. The top clearance of the counterweight shall be not less than the sum of the following three items:

1. The bottom car runby.

2. The stroke of the car buffers used.

3. 6 inches.

(B) Bottom Runby. The bottom runby of the counterweight shall be not less than the sum of the following:

1. The distance the car can travel above its top terminal landing until the plunger strikes its top mechanical stop.

2. 6 inches.

The minimum runby specified shall not be reduced by rope stretch.

NOTE: Authority cited: Section 142.3, Labor Code. Reference: Section 142.3, Labor Code.

HISTORY

1. New subsection (a)(5)(D) filed 10-25-74; effective thirtieth day thereafter (Register 74, No. 43).

2. Amendment of subsections (a)(3) and (a)(5) filed 5-25-76; effective thirtieth day thereafter (Register 76, No. 22).

3. Amendment of subsection (a)(5) filed 11-24-76; effective thirtieth day thereafter (Register 76, No. 48).

4. New NOTE filed 12-8-86; effective thirtieth day thereafter (Register 86, No. 50).

5. Editorial correction of subsection (a)(1) (Register 95, No. 32).

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