Glossary “fifth wheel” Definition:
Coupling device mounted on a truck, and used to connect a trailer. It acts as a hinge point to allow changes in direction of travel between the truck and trailer.
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fifth wheel height
Glossary “fifth wheel height” Definition:
1). Distance from the ground to the top of the fifth wheel when it is level and parallel with the ground. 2). The height from the frame to the top of the fifth wheel, as applies to data given in fifth-wheel literature.
fifth wheel hitch
Glossary “fifth wheel hitch” Definition:
Hitch having a slotted wheel-shaped plate on a tow vehicle into which the kingpin of a fifth-wheel trailer locks to connect the trailer to the vehicle.
fifth wheel top plate
Glossary “fifth wheel top plate” Definition:
That portion of the fifth-wheel assembly that contacts the trailer bolster plate and houses the locking mechanism that connects to the kingpin.
filament
Glossary “filament” Definition:
Heated element in an incandescent lamp.
field winding
Glossary “field winding” Definition:
Term used for field coil.
field frame assembly
Glossary “field frame assembly” Definition:
The round, soft iron frame of a generator or motor into which the field coils are assembled.
field relay
Glossary “field relay” Definition:
Relay that connects the alternator to the battery when alternator voltage is greater than battery voltage and disconnects it when battery voltage is greater than alternator voltage.
field terminal
Glossary “field terminal” Definition:
Electrical terminal connecting the field coil to the voltage regulator.
FICM SYNC
Glossary “FICM SYNC” Definition:
Calculated by the FICM and is the correlation between the camshaft pin and the crankshaft triggers.
field
Glossary “field” Definition:
1). Generally, any area being affected by some physical force. 2). Electrical force in the space around electrically charged particles. 3). Lines of force in a natural or man-made magnet between its north and south poles.
field coil
Glossary “field coil” Definition:
The coil, or winding, around the field magnets or pole pieces of a motor or generator. Also known as field winding.
field density
Glossary “field density” Definition:
The density of the magnetic field, measured in the number of lines of force per unit area, dependent upon the strength of the field element, the number of turns of wire, and the size and characteristics of the pole piece.
Field Effect Transistor
Glossary “Field Effect Transistor” Definition:
A unipolar transistor in which current flow is controlled by voltage in a capacitance field
field effect transistor (FET)
Glossary “field effect transistor (FET)” Definition:
3-terminal semiconductor device where current flows from source to drain due to a conducting channel formed by a voltage field between the gate and the source.
FICM power
Glossary “FICM power” Definition:
FICM power input used to supply internal DC/DC converter.
FICMM
Glossary “FICMM” Definition:
FICM power monitor output.
FICD
Glossary “FICD” Definition:
Fast Idle Control Device
FICM
Glossary “FICM” Definition:
Fuel Injection Control Module
FICM logic power
Glossary “FICM logic power” Definition:
FICM power input used to supply logic circuit.