Popular Trucking Terms series - J
Hey Dispatch University Dispatchers, Possibly, the most common thing I've been told by new dispatchers is that they don't have any experience. And, that they really want this. Our course covers everything we need to know to get started, up and running in a very short time. It is not uncommon to be making money in a matter of weeks. I want to do my part too. So, I thought of these terms that may help us all get more familiar with the dispatching and trucker lingo. Let me know if you like it. We're going to do it one alphabet at a time. This is the next one. The J's. I ask that you add any others that begin with J that you think are missing. J 1. Jackknife – 1) When the tractor and trailer are at a sharp angle to one another. 2) A type of accident in which the tractor and trailer turn to make a V-shape. 2. Jake Brake – 1) An engine compressor brake that builds back pressure by preventing exhaust from escaping, slowing the engine as the cycle at the top of the power stroke is interrupted. 2) Slang for the Jacobs engine brake, an auxiliary braking device on tractors. 3) The most common retarder type on over-the-road trucks, manipulating engine valves to create drag. Other types include exhaust retarders, transmission-mounted hydraulic retarders, and axle-mounted electromagnetic retarders. 3. Jeep Wheel – Gooseneck dollies used with very heavy or extra-long loads. See also: Joe Dog. 4. Jiff Lock – Two fifth wheels on a three-axle tractor; a gear set that fits into the frame of a two-axle tractor to convert it into a three-axle tractor. 5. Jifflox Converter Dolly – Used in the eastern U.S., hooked behind the axle of a single-axle tractor to convert it into a tandem-axle tractor, allowing it to pull a loaded trailer. 6. Joe Dog – A device with a dead axle that converts a single-axle tractor into a tandem-axle tractor. Hooks over the tractor’s fifth wheel, replacing it with another for the semi to be attached. Also called a Jeep Wheel. 7. Jug Handle Turn – A right turn where the driver compensates for off-tracking by moving into another lane before entering the intersection. Considered dangerous and sloppy. 8. Jump-Starting – Using another vehicle’s battery to start a dead battery. Requires following safety rules, preparing the truck, and correctly connecting jumper cables. 9. Just-in-Time (JIT) Delivery System – 1) Shipping method eliminating costly overhead by avoiding warehousing stock. 2)Manufacturing system relying on frequent, small deliveries to minimize on-site inventory. 3) Strategy to get goods to customers exactly when needed, lowering costs by reducing stored inventory.