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25 Cards in this Set
- Front
- Back
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Rescue Ops. Bulletin 1
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Elevators
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What keeps an elevator car from swaying or from lateral motion?
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Guide shoes attached to the car to keep the car in sliding contact with the guide rails.
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What would happen if an elevator car suspended by steel wire cables descends too fast or if the cables should break?
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Clamps activated by a governor designed to stop a car by clamping to the guide rails.
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What are the two (2) types of doors in elevators?
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Outer (Shaft) door and inner (car) door.
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What floors would you find a key-way on a single-shaft elevator?
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Usually located on each floor including the basement.
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What floors would you find a key-way on a bank elevator system?
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Basement, first and top floors only.
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Elevator cars suspended by steel wire cables have a brake between the ___________ and the ____________.
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Electric motor; winding drum
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Hydraulic elevators are operated by a piston and cylinder. The elevator car rides on the ___________ and the ___________ is recessed in the ground.
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Piston; cylinder
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Where is the electrically driven hydraulic pump located?
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Next to the cylinder
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Where is the electric switch located?
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At the hydraulic pump
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What do you do after the electric power is shut off to prevent the power from being turned back on?
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Station a member to remain at the switch and tag the switch with an “ELECTRIC CURRENT CUT OFF” tag .
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Where do you work on an elevator car that has been damaged or there is slack in the cables? What can be done to secure this car?
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Always work above the car. Secure the car with chains or cables.
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When removing an entrapped person(s) from an elevator car and the location of the car can endanger the removal of such person(s), how should they be removed?
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Through the emergency hatch in the ceiling of the car and taken through the shaft door to the floor above.
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What is done after all persons are removed?
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Make sure to leave the electric current off and that all shaft doors are secured.
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Where would you find the key to operate the “Fire Department Switch?”
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Mounted adjacent to the elevator’s hoist-way door on the entry floor.
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What happens when the elevator’s operating key is inserted into the “Fire Department Switch?”
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It will cancel all registered calls on the elevator(s) and stop the car(s) at the nearest landing and without opening the doors, the elevator(s) will reverse to the main lobby.
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After the elevator car returns to the lobby, what needs to happen in order to take control of that car?
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The operating key is removed from the fireman’s switch at the lobby and is inserted in the “Emergency Fireman’s Switch” in the elevator “Car Station.” When this switch is activated, complete control is placed on the car (hall buttons are inactive).
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When the fireman’s service is in operation you must hold _________ pressure on either ______________ or a ____________ to close the doors. To open the doors, one must keep constant pressure on the ___________.
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Constant; door close button; floor button; door open button
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Elevators used in the Metro rail system are of two (2) types?
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Electric traction and hydraulic
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Which route or line in the Metro system would you find electric traction elevators?
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“A” route (Red Line) from Dupont Circle north into Maryland. These elevators are located where the mezzanine to surface exceed the height limitations of hydraulic elevators.
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What do you check at the elevator console in the kiosk at Metro elevators that are stalled?
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Check to make certain that the “Out of Service”, “Override”, or “Emergency Stop” switches have not been activated.
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If you are unsuccessful in moving the elevator or freeing passengers what do you do next?
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Contact Metro OCC and advise them that an elevator mechanic is needed.
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At what point can you release the brakes to allow the elevator to move to a landing?
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Under no circumstances shall the brakes on the elevator be released.
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What is the number to OCC and can be dialed from the kiosk?
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1970
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What is in the red box located in the elevator machine room?
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Hoist-way door key (drop type) and a Fireman’s Emergency Elevator Key.
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