L 3830 tranny noise

[Deerlope]

Is this normal. when I am on the highway with only the FEL on and going down hill, when I back off the throttle to slow down to enter a driveway I hear a lot of gear noise, like back lash. I have a GST tranny. I have told my dealer of this and his answer is to "let it wear in". Has anyone else had this problem? The oil level is fine. The machine has 135 hours on it.

 

[JerryG]

Is it in 4 or 2 wheel drive?

 

[Deerlope]

Oop's forgot that part. It is always in 2 wheel drive. Don't beleive that I have had it in 4x4 more than a dozen times. But on the hard paved road its always in 2 Wd.

 

[rbargeron]

The dealer comment "let it wear in" indicates questionable knowledge of the Kubota gearbox. The component parts -gears, bearings, splined shafts, shifter forks etc.- are designed and manufactured to close tolerances. The gears are finished beautifully so the "wear in" is essentially zero. If something is out of tolerance or mis-assembled enough to make noise, it should be inspected BEFORE it causes more damage.

In the old crude days (and on some recent Zetors) the first oil change of a large tractor tranny brought out half a cup of filings and metal debris. The gears and other parts were so big they survived a long time anyway. But a Kubota gearbox is a classy piece of work and should not make extra noise on changing torque direction.

If your dealer will not take this seriously, insist on involving Kubota's service rep. If it is abnormal Kubota will likely fix it if they know about it. My 2 cents.