220.127.116.11.2 Top-Of-Car Inspection Operation
(b) The transfer switch [see 18.104.22.168.1(b)] shall be located on the car top and shall be designed to prevent accidental transfer from the "INSPECTION" position to the "NORMAL" position.
(d) The inspection operating devices shall become effective only when the "ENABLE" device is activated.
(1) the "ENABLE" device [see [c)] and a stop switch, in addition to the stop switch required in (a), are included in the portable unit
(2) the flexible cord is permanently attached so that the portable unit cannot be detached from the car top
(f) Separate additional devices of the continuous-pressure type shall be permitted to be provided on the car top to make power door opening and closing and automatic car leveling operative from the top of the car for testing purposes.
(g) When on top-of-car inspection operation, a separate additional device shall be permitted to render ineffective the top final terminal stopping device, and the buffer switch for gas spring-return counterweight oil buffers, in conformance with the requirements of 22.214.171.124, 126.96.36.199, 188.8.131.52.1(a), and 184.108.40.206, and it shall allow the car to be moved to a position in conformance with the requirements of 220.127.116.11 and 18.104.22.168.3(c).