Kubota M62 Suddenly Slower?

[mtputney]

Here’s a bit of a head scratcher.

We tend to run our M62 HST at medium either high/low (transmission on medium turtle/rabbit). Suddenly last week, at either setting, it feels like its running about 20% slower. At 1500rpm on level ground, its going about 6.5km/hr.

600 hours and everything else is working fine. All fluids are fine and full. All suggested maintenance has been done.

I’m wonder about something like the pedal-HST pot…any other thoughts? I'm under the impression that the HST in the tractor is controlled electrically, not by linkages.

Thanks in advance for any help.

 

[treefarmerguy]

Check that your brake lock is not engaged. On my L5030 it was and the indicator light did not show it.

 

[dodge man]

The only other thing that come to mind is a partly plugged hydraulic filter but if it’s been cared for not likely.

 

[TGD]

Check the fuel and filters. Recently I had bad fuel for my tractor and while RPM's were ok, there was a drop in power which translated in poor performance. Turned out to be the contamination clogged the fuel filter.

 

[mtputney]

Backhoe and loader power seem normal.

Brake not engaged.

Fuel filter changed recently.

 

[mikester]

Are your diverter valves fully out/in as appropriate (ie. BH on or off)?

Is your tranny/hydraulic fluid at the correct level?

 

[mtputney]

Diverter valves are in the correct position.

Hydraulic fluid at the correct level.

Full power for the loader and backhoe.

Thanks