Pennsylvania Code
Title 34 - LABOR AND INDUSTRY
Part I - Department of Labor and Industry
Chapter 7 - ELEVATORS, LIFTS, ESCALATORS, DUMBWAITERS, HOISTS ANDTRAMWAYS
Subchapter H - STAIRWAY INCLINED LIFTS IN BUILDINGS OTHER THAN PRIVATE RESIDENCES
Section 7.253 - Carriages

Universal Citation: 34 PA Code ยง 7.253

Current through Register Vol. 54, No. 38, September 21, 2024

(a) Specifications. The carriage or chair shall have a foot platform with a seat or seats and an outer arm rest and a back so arranged as to provide safe support for passengers, provided they are of the self-locking type. Swivel-type seats are permitted.

(b) Truck and guides. The carriage shall be securely anchored to a truck which supports it. The truck shall be retained in a track or guide rail assembly. Supporting guide rails shall be securely anchored to the stairs or sidewall.

(c) Factor of safety. The factor of safety used in the design of the carriage, truck, guide rails, sprockets and sheaves shall be not less than five, based on the rated load.

(d) Safety devices. The carriage shall be provided with a safety of the instantaneous type operating on failure or slackening of the hoisting rope or chain. A slack-rope or chain switch shall be provided which removes power from the motor and brake if the hoisting rope or chain fails or slackens. An exception exists where self-locking drives utilizing a lead screw or other positive gearing will stop and hold the carriage with rated load within less than four inches of down travel after power is removed.

Disclaimer: These regulations may not be the most recent version. Pennsylvania may have more current or accurate information. We make no warranties or guarantees about the accuracy, completeness, or adequacy of the information contained on this site or the information linked to on the state site. Please check official sources.
This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.