(d) When unloading through the bottom outlet of a car equipped with an interior manhole type cover, and in each case where unloading is done through the manhole (unless a special cover with a safety vent opening and a tight connection for the discharge outlet is used), the manhole must be protected by asbestos or metal covers against the entrance of sparks or other sources of ignition of vapor, or by being covered and surrounded with wet burlap or similar cloth material. The screw must be tightened up in the yoke so that the cover is brought up within one-half inch of the closed position. A non-metallic block must be placed under one edge of the cover. The cover must be put in place, but not entirely screwed down, so that air may enter the tank through the vent holes in threaded flange of the cover. (c) When the car is unloaded through a bottom outlet valve, for unloading processes that require the removal of the manhole cover, the manhole cover must be adjusted as follows: All dirt and cinders must be carefully removed from around the cover before the yoke is unscrewed. All nuts must be unscrewed one complete turn, after which same precautions as prescribed for screw type cover must be observed. After two complete turns, so that the vent openings are exposed, the operation must be stopped, and if there is any sound of escaping vapor, the cover must be screwed down tightly and the interior pressure relieved as prescribed in paragraph (a)(6) of this section, before again attempting to remove the cover. The cover must be loosened by placing a bar between the manhole cover lug and knob. (b) After the pressure is released, for unloading processes that require the removal of the manhole cover, the seal must be broken and the manhole cover removed as follows: These precautions are not necessary when the car is equipped with a manhole cover which hinges inward or with an inner manhole cover which does not have to be removed to unload the car, and when pressure is relieved by piping vapor into a condenser or storage tank. However, if venting to relieve pressure will cause a dangerous amount of vapor to collect outside the car, venting and unloading must be deferred until the pressure is reduced by allowing the car to stand overnight, otherwise cooling the contents, or venting to a closed collection system. (6) Before a manhole cover or outlet valve cap is removed from a tank car, the car must be relieved of all interior pressure by cooling the tank with water or by venting the tank by raising the safety valve or opening the dome vent at short intervals. 1.120) in a location where they are immediately available to hazmat employees responsible for the transloading operation. (5) The transloading facility operator must maintain written safety procedures (such as those it may already be required to maintain pursuant to the Department of Labor's Occupational Safety and Health Administration requirements in. Additional words, such as “Tank Car Connected” or “Crew at Work,” may also appear in white letters under the word “STOP.” The letters must be white on a blue background. The caution signs must be of metal or other durable material, rectangular, at 30.48 cm (12 inches) high by 38.10 cm (15 inches) wide, and bear the word “STOP.” The word “STOP” must appear in letters at least 10.16 cm (4 inches) high. (4) Each hazmat employee who is responsible for unloading must display caution signs on the track or on the tank cars to warn persons approaching the cars from the open end of the track and must be left up until after all closures are secured and the cars are in proper condition for transportation.
Portable railcar transloader portable#
This requirement may be satisfied by lining each switch providing access to the unloading area against shifting and securing each switch with an effective locking device, or by using derails, portable bumper blocks, or other equipment that provides an equivalent level of safety. (3) Each hazmat employee who is responsible for unloading must secure access to the track to prevent entry by other rail equipment, including motorized service vehicles.
![portable railcar transloader portable railcar transloader](http://northernplatformsltd.ca/wp-content/uploads/2015/05/Portable-Railcar-Access-Unit-1.jpg)
If multiple tank cars are coupled together, sufficient hand brakes must be set and wheels blocked to prevent motion in both directions. (2) Each hazmat employee who is responsible for unloading must apply the handbrake and block at least one wheel to prevent motion in any direction.
![portable railcar transloader portable railcar transloader](https://www.skidsolutions.com/wp-content/uploads/portable-transloader.jpg)
(1) Unloading operations must be performed by hazmat employees properly instructed in unloading hazardous materials and made responsible for compliance with this section. For transloading operations, the following rules must be observed: