pit stop
Stop that lasts a few seconds; it is taken by drivers during a race to refuel, change tires and make necessary mechanical adjustments.
refueling device 
Assemblage consisting of a fuel tank connected to a hose; it is for refueling the car when stopped in the pit.
compressed-air tank 
Reservoir containing compressed air for the pneumatic drills.
refueler 
Person responsible for refilling the car’s tank with gasoline by plugging a supply hose into the car.
starter mechanic 
Mechanic who uses a starter to make the car run again if the engine stalls after refueling.
chief mechanic 
Person who directs the mechanics; using a sign called a lollipop, this individual lets the driver know when the car can leave again.
pneumatic drill 
Instrument for tightening and loosening the center lug nut for each wheel.
mechanic 
Person in charge of changing the tires. One mechanic loosens the center lug nut, a second one takes the tire off and a third one puts the new tire on.
jack 
Mechanism activated by a handle, for raising the vehicle.