Glossary “trailing shoe” Definition:
Shoe towards the rear of a non-servo brake assembly, which pivots around a fulcrum in a direction opposite to normal drum rotation.
trailing edge
Glossary “trailing edge” Definition:
1). In a Hall-effect switch, the edges of the rotating blades that exit the switch. 2). The desending or falling edge of a waveform.
trailing arm
Glossary “trailing arm” Definition:
Suspension arm that attaches to the chassis ahead of the wheel, generally for the rear wheels on a front-wheel drive vehicle.
trailer tongue
Glossary “trailer tongue” Definition:
An extension at the front of a trailer that attaches to a hitch ball on a tow vehicle.
trailer slider
Glossary “trailer slider” Definition:
Movable suspension frame that is capable of changing the trailer wheelbase by “sliding” and locking into different positions.
trailer hitching
Glossary “trailer hitching” Definition:
Sudden lurch occurs due to power flow interruption during deceleration.
trailer hand-control valve
Glossary “trailer hand-control valve” Definition:
A device located on the dash or steering column used to apply only the trailer brakes; primarily used in jack-knife situations.
trailer
Glossary “trailer” Definition:
1). A platform or container on wheels pulled by a vehicle. 2). A non-powered vehicle used to haul cargo.
trail braking
Glossary “trail braking” Definition:
Driving technique where the brakes are applied after entering a turn to help rotate the vehicle.
trade number
Glossary “trade number” Definition:
The number stamped on an automotive light bulb. All bulbs of the same trade number have the same candlepower and wattage, regardless of the manufacturer of the bulb.
tractor protection valve
Glossary “tractor protection valve” Definition:
Term used for tractor breakaway valve.
tractor breakaway valve
Glossary “tractor breakaway valve” Definition:
Device that automatically seals off the tractor air supply from the trailer air supply when the tractor system pressure drops to 30 or 40 psi.
tractor
Glossary “tractor” Definition:
1). Term used for truck tractor. 2). Motor vehicle having a fifth wheel used for pulling a semitrailer. 3). Truck or short wheel-base vehicle used for pulling a trailer or semitrailer. 4). A self-propelled vehicle having tracks or wheels.
tractive effort
Glossary “tractive effort” Definition:
Pushing force exerted by the vehicle’s driving wheels against the road’s surface.
traction rating
Glossary “traction rating” Definition:
Tire rating that indicates the traction capabilities of the tire to the consumer.
Traction-Lock
Glossary “Traction-Lock” Definition:
Limited-slip differential by Ford.
Traction Control System
Glossary “Traction Control System” Definition:
A system that attempts to control wheel spin during acceleration on slick road surfaces.
traction bar
Glossary “traction bar” Definition:
Device used on a rear-wheel-drive to prevent axle twist and spring wind up during hard acceleration.
traction
Glossary “traction” Definition:
A body’s friction on a surface such as a vehicle tire on a roadway.
tracking
Glossary “tracking” Definition:
Rear wheels following directly behind the front wheels.