T.B. - Elevators Flashcards
What is an elevator EMERGENCY?
FIP
a) FIRE endangering passengers in a stuck elevator
b) Passenger of a stuck elevator INJURED
c) Passenger of stuck elevator in PANIC
What are the MOST frequent cause of elevator malfunction?
Electrical problems.
How can you locate the elevator car?
a) Lobby control panel
b) Intercom or telephone system of the stuck car.
c) Open the hoist way door at the first floor with elevator key and look up shaft.
Where are the governor ropes located?
They are generally located on EITHER SIDE near one of the far corners of the shaft.
What will indicate the EXACT location of the elevator car?
The floor selector in the machinery room.
What are the two types of PRIMARY REMOVAL procedures?
1) Check whether simple electrical contacts have been broken
* If passengers have activated the Emergency Stop Button, these methods WILL NOT work*
2) Fireman Service - If available.
* F.S. will override the Emergency Stop Button*
When should Firemen Service be DEACTIVATED?
When the car responds by returning to the lobby or if it’s clear the car isn’t responding.
The books state to summon an elevator mechanic if PRIMARY removal procedures fail. Where is the telephone number required to be posted?
In the machinery room near the elevator power switch.
- Consider the possibility of an elevator mechanic on duty in a nearby building.*
- Are OFTEN posted in the vicinity of the elevator lobby.*
When is power removal ESSENTIAL?
Whenever Secondary or Emergency Removal Procedures are used.
Where may the elevator machinery room be located?
1) At the TOP of the shaft
2) At the BOTTOM of the shaft
3) Two levels ABOVE the highest floor serviced by the elevator.
What equipment should members be equipped with when assigned to the elevator machinery room?
A H/T and forcible entry tools.
How are elevator power switch boxes and motors required to be labeled?
They are required to be labeled in a manner which relates MOTOR to SWITCH.
If any DOUBT exists as to which elevator power switch to deactivate, what would be the correct action to be taken?
If any doubt exists, OPEN as many elevator power switches as required to insure a safe operation.
Will we restore power to a stalled elevator car upon completion of the operation?
NO. DO NOT restore power to the stalled car.
A ventilation opening is also known as the?
The smoke hole.
IF PRACTICAL, how should passengers be removed from a car between floors ?
When passengers are removed from a car between floors, they should be taken UP and OUT of the car IF PRACTICAL.
If they are removed to the lower landing, the shaft opening MUST be protected.
Are members NORMALLY permitted to enter the shaft BELOW the elevator car?
NOT normally.
Are we permitted to jack up or move an elevator in an upward direction?
The elevator shall NEVER be jacked up or moved in an upward direction.
When dealing with elevators. when would it be permitted to provide additional protection such as placing heavy timber, an iron bar or tool between the spokes of the hoisting drum?
In OLDER elevator installations, if the condition of the elevator brake is DOUBTFUL, AFTER power is removed.
In most NEWER installations, this can be dangerous and impractical.
SLIDING hoistway type doors?
LIFT the locking arm.
HINGE type hoistway doors?
DEPRESS or LIFT the roller.
Buildings OVER 10 stories (11, 12, 13, etc.) commonly have this type of system?
A TWO speed system.
What would be the ONLY circumstance in which power to a stalled elevator may be restored?
During SECONDARY removal procedures, members in the elevator machinery room will be directed to shut power to the stuck car and TURN it on again.
If the car is to restart, it will do so within 10 SECONDS.
How many FF’s are permitted on the roof of an elevator during a top hatch removal?
A MAXIMUM of TWO FF’s.