M5400S Issue

[tstex]

Gentlemen,

I hope everyone and their families are all doing well.

Wanted to run this by you guys and determine if any of you have run into something like this?

Have a 1996 60HP M5400S Kubota w a frt-end-ldr. The tire specs:

Wheelbase: 78.7 inches [199 cm]

Weight: 4000 lbs [1814 kg]

Front tire: 7.50-16

Rear tire: 16.9-28

The rear tires have anti-freeze in them since i bought it in 1996. I got on the paved cty rd, and it seemed like it was running lop-sided, meaning I kept bouncing in my seat up and down bc something was really off. the tractor was not wrecked or hit.

When I noticed it wobbling, the rear tires [one more than the other] were low, so I aired them up, front too, to spec. Got back on the paved rd and it still wobbled ???? When I open her up, it tends to wobble/rock less, but at about mid-speed, it just doesn;t seem right.

Does anyone have a clue as to what could be happening? I live in S. Central TX, so no extreme temperatures. I am really lost on this one.

Thank you guys, and Merry Christmas to all,
tstex

 

[Tx Jim]

In cold weather tire will have flattened out from sitting. If you drive it far enough they will smooth out provided enough antifreeze was installed so they don't freeze. This bouncing shows up more with non-radial tires..

 

[tstex]

Thanks Jim.

There is plenty of anti-freeze in them, and it is pretty rare for them to freeze with the temp's we get and the duration of freezing weather is usually limited to over night and very early morning...I'll try running her for an extended period and see if that does it...thx again, tstex