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Subchapter 6. Elevator Safety Orders
Article 10. Hand and Power Sidewalk Elevators
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§3074. Machinery and Equipment for Elevators with Sidewalk Doors.


(a) Guide Rails, Guide Rail Supports, and Fastenings. Guide rails and their supports shall conform to Section 3030 and Design Section 3109(a) for hydroelectric elevators and to Section 3077(e) for hand elevators.

(1) The top and bottom ends of each run of guide rail shall be located so that the car cannot travel beyond the ends of the rail. The rails shall be extended to or supported by the pit floor.

(b) Buffers. Buffers shall conform to the following:

(1) Hydroelectric elevators to Section 3061.

(2) Hand elevators to Section 3076(e)(4).

(c) Counterweights. Power sidewalk elevators shall be uncounterweighted. Existing counterweights shall be maintained to comply with Section 3032.

(d) Car Frames and Platforms.

(1) Car frames and platforms shall conform to the requirements of Section 3063 for hydroelectric elevators, and Section 3077(a)(3) for hand elevators.

(2) Bow irons shall be provided on the car to operate the sidewalk doors and screens except on hand elevators.

(A) Bow irons shall be not less than 7 feet high, except that this height may be reduced by an amount necessary to permit the sidewalk doors to close when the car is at the landing next below the sidewalk level.

(B) Bow irons shall be so designed and installed as to withstand the impact when striking the doors.

(C) Bow irons shall be located approximately symmetrically with respect to the center of the car platform.

(3) Sidewalk elevators arranged to travel above the level of the sidewalk shall conform to the following:

(A) The depth of the car frame and the length and spacing of the guiding members shall be such as to prevent tipping of the platform when it is at its highest upper landing level. See Section 3063(a)(1) for the minimum requirements.

(B) The car platform shall be provided with metal aprons or guards on all exposed sides, conforming to the following:

1. They shall be made of metal of not less than No. 16 M.S. gage.

2. They shall have a straight vertical face flush with the outer edge of the platform, having a depth of not less than the distance between the normal upper terminal landing level and the highest upper landing level plus 3 inches.

3. The lower portion of the guard shall be rounded or bent back at an angle of approximately 75 degrees with the horizontal.

(e) Car Enclosures and Car Doors and Gates.

(1) Power-driven sidewalk elevators shall be provided with a car enclosure on the unused sides to a height of not less than 6 feet, conforming to the requirements of Section 3034(c).

EXCEPTION: Existing elevators in existing buildings where because of building conditions it is not possible to install sides 6 feet high providing the sides furnished are the maximum height obtainable.

(2) Where car gates or doors are provided, they shall conform to the requirements of Section 3034(f) and shall be provided with a contact conforming to Section 3034(d)(2).

(3) Car enclosures are not required for hand elevators.

(f) Capacity and Loading.

(1) The capacity and loading requirements shall conform to the following:

(A) Hydroelectric elevators to Section 3066.

(B) Hand elevators to Section 3077(c).

(2) Elevators designed for Class B or Class C loading shall have a sign in the car that conforms to the requirements of Section 3037(e)(1)(A).

(g) Driving Machines and Sheaves. Driving machines and sheaves shall conform to Sections 3067, 3068, and 3069 for hydroelectric elevators, and to Section 3077(g) for hand elevators.

(h) Terminal Stopping Devices of Power Elevators.

(1) Terminal stopping devices shall conform to the following:

(A) Hydroelectric elevators to Section 3070.

(B) Limit switches installed in the hoistway at the lower terminal shall be located as far above the bottom of the pit as practicable.

(C) All terminal limit switches in the hoistway or on the car shall be weatherproof.

(i) Operating Devices and Control Equipment of Power Elevators.

(1) Operating devices and control equipment shall conform to the requirements of Section 3071.

EXCEPTIONS:

1. Top of car inspection switches.

2. Top of car stop switches.

(2) Access switches are not required except where biparting doors are installed at the lowest landing.

(3) The operation of power elevators through the sidewalk doors shall conform to the following:

(A) The elevator shall be operated in both the up and down directions through the opening, only from the sidewalk level, except when the doors are held in the open position by the hold-open bar or device.

(B) The operation from the sidewalk level shall be by means of key-operated continuous-pressure type up and down switches or by continuous-pressure type up and down buttons on the free end of a plug-in flexible cord not more than 5 feet in length.

(C) Key-operated switches shall be of the continuous-pressure spring-return type and shall be operated by a cylinder-type lock having not less than a 5-pin or 5-disc combination with the key removable only when the switch is in the off position.

(D) Where the elevator is located on the building wall half of the sidewalk, but not more than 4'0" from the building wall, the key switch or plug receptacle shall be located in the wall within 18 inches horizontally of the edge of the hoistway or within one section of the sidewalk door.

When the elevator is not located on the building wall half of the sidewalk, the key switch or plug receptacle shall be located within one section of the sidewalk door or within 18 inches horizontally of the edge of the hoistway.

Key-operated switches and plug receptacles shall be weatherproof.

(4) Operating buttons may be provided in the elevator car provided that such buttons shall operate the car only when the bow iron is not in contact with the sidewalk doors.

(5) Operating buttons may be provided, mounted on the underside of the sidewalk doors in such a manner as to be clear of the automatic screens, provided that such buttons shall operate the car only when doors are held in the fully open position by the hold-open bar or device.

(6) Operating buttons for operation of the elevator from the hall landings shall not be used except the access switch required for access to the pit where biparting vertically sliding doors are installed at the lowest landing. The access switch shall operate the car only when the bow iron is not in contact with the sidewalk doors.

(7) Operation shall be of the continuous-pressure type.

(8) When it is intended to discontinue the use of a sidewalk elevator for an extended period of time, power elevators shall comply with the requirements of Section 3071(k) and hand power elevators shall comply with Section 3077(j).

HISTORY

1. Amendment of subsections (e)(1), (i)(1) and new subsection (i)(8) filed 6-23-77; effective thirtieth day thereafter (Register 77, No. 26).

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