Mahindra 2638 hst front diff.

[apeckham]

Hi all, I own a 2019 2638hst and to me the front differential seems very noisy. This is while running it in mid range 2 wd . I checked the oil in it and it was ok.
Does anybody else have this issue with their tractor?

 

[Birdhunter1]

Mine seems noisier if in 4wd and moving in mid range but in 2wd is pretty quiet.

 

[duffer]

Mine "whines" at lower engine RPM's and under load (uphill, or towing something heavy). If I ramp up the RPM's to 1600+ it's not near as noticeable. I think it's inherent to an HST, since everything is run by hydraulics.

 

[SimpleSimon]

don't think a differential is hydraulic-
Also this is one good thing about a manual trans vs hyd- it might bump a little going into gear, but gear drive! Only thing that is hydraulic are the 3pt arms and FEL

 

[Robin Veerman]

What’s the maintenance history? Might be worth changing the oil. If UTF switch to a gear lube…or vice versa.

 

[Sergei1]

My Mahindra requires using Trans-hyd oil in front differential, gear lube might not be good if you live in cold area. Also have you followed the schedule for changing the oil?