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Converter Dolly - Auxiliary axle assembly equipped with a fifth wheel (coupling device), towed by a semitrailer and supporting the front of, and towing, another semitrailer. Reference: Truck Writers of North America (TWNA) Related Terms: Converter Dolly - dolly | trucking | Dolly - Auxiliary axle assembly equipped with a fifth wheel (coupling device), towed by a semitrailer and supporting the front of, and towing, another semitrailer. Reference: Truck Writers of North America (TWNA)Related Terms: Dolly - converter dolly | trucking | Fifth Wheel - Coupling device attached to a tractor or dolly which supports the front of a semitrailer and locks it to the tractor or dolly. The fifth wheel's center is designed to accept a trailer's kingpin, around which the trailer and tractor or dolly pivot in turns. Reference: Truck Writers of North America (TWNA)Related Terms: Fifth Wheel - sliding fifth wheel | trucking | Kingpin Trailer - Anchor pin at the center of a semitrailer's upper coupler which is captured by the locking jaws of a tractor's fifth wheel to attach the tractor to the semitrailer. Reference: Truck Writers of North America (TWNA)Related Terms: Kingpin Trailer - kingpin axle | trucking | Semitrailer (1) - Truck trailer supported at the rear by its own wheels and at the front by a fifth wheel mounted to a tractor or dolly. Reference: Truck Writers of North America (TWNA)Related Terms: Semitrailer (1) - trailer | trucking | Slider - Mechanism that allows a tandem axle suspension to be moved back and forth at the rear of a semitrailer, for the purpose of adjusting the distribution of weight between the axles and fifth wheel. Reference: Truck Writers of North America (TWNA)Related Terms: Slider - fixed tandem | sliding tandem | trucking | Sliding Fifth Wheel - Fifth wheel mounted to a mechanism that allows it to be moved back and forth for the purpose of adjusting the distribution of weight on the tractor's axles. Also provides the capability to vary vehicle combination lengths. Reference: Truck Writers of North America (TWNA)Related Terms: Sliding Fifth Wheel - fifth wheel | trucking | Sliding Tandem - Mechanism that allows a tandem axle suspension to be moved back and forth at the rear of a semitrailer, for the purpose of adjusting the distribution of weight between the axles and fifth wheel. Reference: Truck Writers of North America (TWNA)Related Terms: Sliding Tandem - fixed tandem | slider | trucking | Tractor (1) - Truck designed primarily to pull a semitrailer by means of a fifth wheel mounted over the rear axle(s). Sometimes called a truck tractor or highway tractor to differentiate from it from a farm tractor. Reference: Truck Writers of North America (TWNA)Related Terms: Tractor (1) - truck | trucking | Upper Coupler - Load bearing surface on the underside of the front of a semitrailer. It rests on the fifth wheel of a tractor or dolly and has a downward-protruding kingpin which is captured by the locking jaws of the fifth wheel. Reference: Truck Writers of North America (TWNA)Related Terms: Upper Coupler - fifth wheel | trucking |
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WWW Virtual Library of Logistics Ver 4, Sep, 1999, Matthew D. Cox, logistics@logisticsworld.com Sponsored by LogisticsWorld. Copyright © 1995, 1996, 1997, 1998, 1999 MDC, All rights reserved. |