Help please, 09 TYM T330 hydrostat with ratcheting sound from the rear.

[Harry in Ky]

What you describe here has no simple "it's going to be either this or that" type of problem. More details are needed. "Only skips under very heavy load". When it "skips" this is when the "ratcheting" sound appears? And this seems to come from where on the tractor? It pulls in 2WD without issue unless the "pull" is severe?

A quick search for online parts for TYM T330 comes up empty. Is that the correct model designation?

 

[jigs_n_fixtures]

What you describe here has no simple "it's going to be either this or that" type of problem. More details are needed. "Only skips under very heavy load". When it "skips" this is when the "ratcheting" sound appears? And this seems to come from where on the tractor? It pulls in 2WD without issue unless the "pull" is severe?

A quick search for online parts for TYM T330 comes up empty. Is that the correct model designation?

The T330 is a Kubota powered tractor. The model number is correct. I have the service manual for the shuttle shift transmission version, but not the HST version.

The manuals for a similar horsepower TYM with the HST transmission might be applicable. My TYM T233, and T293, share the transmission with the current T25, with the only difference in parts being the case, which has a different part number by a one letter suffix. But the internals, axles, etc. all have the same part numbers.

In fact, many of the parts numbers are the same for my tractors and the T25, unless they are directly related to the engine, and shaft connection from the engine to the transmission, or the hydraulic controls.