I have a JD 2020 a few weeks ago the customer sent in a loader lift cylinder to be resealed and we found a good amount of meatal paste in the dead end of the cylinder. So we advised them that they should have the hydro system inspected and cleaned. Now I have his tractor and it runs and drives great but when you lock the left brake the right wheel digs as it should but if you lock the right brake the left wheel has a grinding sound coming from it. So I have removed the left axle and everything feels tight and then removed the rockshaft to be able to see in the transmission and see the diff. There is a little amount of very fine meatal in the corners of the diff housing but looking at all the gears and bearings everything looks to be in very good shape. The only thing I have found is that the keeper on the left hand bearing has some play in it but the bearing itself visibly looks good and rolls smooth. I was wondering if there is anything else that you knew of for me to check?
- Thread starter Hick1989
- Start date
Tx Jim
Well-known Member
- Location
- Coyote Flats, Texas
Welcome to YT
Due to the fact how noises can travel I suggest to pull other rear axle housing & check brake linings.
buickanddeere
Well-known Member
Accessed from the bottom of the transmission . There is a pre-screen prior to the transmission pump . And a filter for the transmission pump outlet .
It sounds like a non wet clutch oil or water contaminated oil was used in the transmission . This delaminates the glue holding the brake friction materials in place . Ruins the fiction material too .
Once the brake facings/friction material are gone . The metal on metal contact fills the transmission filter full with grey powdered metal . The filter bypass opens and allows a little bit of unfiltered lube oil to still flow . Or sometimes the owner just tosses the plugged transmission oil filter and operates without it .
I think you know where this is going when you are finding powdered metal in the hydraulic cylinders . After this oil has been through bearings and the front high pressure pump .
Be exceedingly cautious with the time and money you invest in this potential turkey .
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