How often should the chassis be lubed?
At a minimum, lubrication should be performed every ten thousand miles, or annually. Many RV owners lube the chassis every five thousand miles, and that is appropriate for pushing out the old grease and getting new grease into the joints. Inspecting and greasing the drive shaft on a regular basis is always a good idea. When lubing chassis components with the tires pointing straight ahead, access to lube the drag link may be difficult. It may be necessary for the technician to start the RV, and turn the steering wheel to access the grease fitting. With regard to king pin lubrication, it is recommended that when the axle is first greased, and once each year thereafter, to jack the front end off the ground and rotate the steering wheel full distance from side to side after greasing. Raise the front tires off the ground and turn the wheel all the way to the right, and then all the way to the left, after greasing. This procedure will insure that the king pins are thoroughly lubricated.
