If you have any questions, contact us today. Our semi-truck and trailer part allow your semi-truck to operate smoothly, including our king pin kits and sets, tie rod ends, power steering pumps, draglinks, and more. Van Horn Truck Parts offers high-quality semi-truck and trailer parts for competitive prices. Unfortunately, you must have your king pin replaced to ensure operator and rig safety in this case. Insufficient lubrication is usually the issue if you notice significant wear before your king pin’s lifespan ends. These result in unwanted surface contact. Poor lubrication signs include premature wear and king pin galling. Without proper lubrication, uneven and premature wearing can create unsafe hauling environments. Maintaining a lubricated king pin is a must for reducing tractor fifth wheel trailer grinding. Poorly lubricated king pins become worn excessively and quickly. No LubricationĪnother common sign of a worn semi-truck and trailer king pin connection is the lack of lubrication. Without doing so, it can create unsafe hauling conditions. A bent king pin can develop issues with coupling and uncoupling, so the solution is to have it fixed as soon as possible. A well-preserved, functioning king pin makes for easy coupling.įurthermore, if your trailer and tractor can couple properly but have difficulty uncoupling, this could also occur due to a bad king pin. If you notice signs of struggle for truck-to-trailer coupling, it could result from a worn king pin. The coupling of a semi-truck connects the tractor and the trailer, supporting the payload. So installing a replacement is necessary. You can't safely haul your trailer because there’s nothing for the fifth wheel trailer to tighten on. When the shoulder of a king pin becomes worn down, it makes it impossible for it to tighten properly. Similar to a worn-down throat, a worn-down shoulder can impact the attachment of a fifth wheel trailer adjustment. This creates an unsafe securing issue, so replacing your king pin as soon as possible is crucial before hauling. The throat of the king pin becomes incredibly worn down, not allowing the fifth wheel trailer adjustment to grip onto anything. However, if you notice the fifth wheel trailer adjustment struggles to tighten, it’s most likely a bad king pin. Tightening your tractor and trailer together should work easily with a proper king pin. Here are some common signs of king pin wear on a semi-truck. However, you can be at risk if you can’t securely attach a semi-truck to the trailer. After the vehicle is used for a period of time, due to the frequent drops and hooks of the tractor and semi-trailer, necessary maintenance shall be carried out for the king pin: remove the oil sludge on the king pin (the oil sludge contains a lot of sand, which will aggravate the wear of the king pin) and supplement new grease.Semi-truck safety is essential for hauling cargo across the country. During initial use, add an appropriate amount of grease around the end of the king pin ī. The king pin must be replaced when the wear of the king pin reaches the wear limit.Ī. Adjust the position of the lock bolt of the fifth wheel to eliminate the gap between the king pin and the lock hook ī. Regularly check the above items according to the instruction manual of each automobile manufacturer.ĭuring the running of a semi-trailer, the king pin rotates relative to the fifth wheel, causing the king pin to wear. Otherwise, replace the self-securing bolt and tighten it according to the specified torque.Į. a Sustainable Grease for Heavy Duty Truck Trailer Axles. The king pin on a truck connects the steer axle to the steering knuckle, supporting the steering geometry and allowing the wheel ends to turn the vehicle. Check whether any self-securing bolt is loose or broken. King pins, the bushings that encircle them, and their related components are essential for proper steering. Check the skid plate for scars, distortion and foreign objects, otherwise it will cause abnormal wear of the king pin ĭ. The optional skid plate thickness is 8mm, 10mm, 12mm, 14mm and 16mm.Ĭ. It needs surface carburizing and quenching treatment to enhance wear resistance of its surface. The raw material of this kind of king pin is generally 20CrMnTi. The welded king pin is directly welded to the skid plate of the semi-trailer and cannot be replaced. Welded king pins are available in two models: 50# (2”) and 90# (3.5”). The semi-trailer king pin has two models: 50# (2”) and 90# (3.5”).įor 50# king pins, needing to correspond China standard GB/T 4606-2006 (or referring to ISO 337:1981).įor 90# king pins, needing to correspond China standard GB/T 4607-2006 (or referring to ISO 4086:2001).Īccording to different assembly forms, king pins can be divided into the following two styles:Īs shown in Figure 2 below. The introduction of king pins including the following aspects: The king pin is one of key parts connecting the tractor and the semi-trailer. A king pin is installed on a semi-trailer and cooperates with a fifth wheel on a tractor to realize hooking up and dropping the semi-trailer and the tractor, as shown in Figure 1 below.
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |