R
robbie
Guest
This was how we did big trucks in the 80's. We would do the bearing preload rotate then tighten again, rotate. Then we would back off to the point that the nut was loose. Hand tighten, then check to see how much the washer would move back and forth with a screw driver. IF no movement then loosen, if real easy movement not tight enough. this was a trail and error until you got good at it. when it was just right you put the lock washer on then the lock nut and tighten to what ever the man spec's were. then check to see if you could move the washer with some force, not two handed force but some more force then it took with just the jam nut. Sound hazzy but works real well. I have been using this method for over 20 years (yea I am old, but big enough to wipp most) and it is what I use in the shop today. It takes a feel and it may take a couple of times doing it but will serve well. As for what is happening I believe it is the grease at 30 F that is your problem and if you go the spring to around 25 lbs I would bet that you would be close to the specs at room temp. The way you would tell if it is too loose(before driving the truck) is with the tire and wheel on, with every thing on the ground and you shake the tire(from the top) back and forth and you have looseness, the bearing preload is not enough, do it over or you will have problems.
Junk you may want to put this in the FAQ section. later robbie
Junk you may want to put this in the FAQ section. later robbie
