2019 Kubota SVL95 2s 3400 hours has a starting issue

[906Rick]

I purchased it used last fall, I have run it about 40 hours, The problem showed up when the weather turned and we got several inches of snow and got down about to freezing. It did start as usual but did not run for long, it powered down and shut down. The code it threw was that the air intake was not to spec. I cleared the intake. It did not appear that any snow had been sucked into the air cleaner and the element was dry and it restarted. It ran as normal for about 15 minutes and powered down and shut down again. Then the starter started dragging like the battery was weak or like very thick oil in below zero weather. I tented and heated the machine and changed the air and all three fuel filters and it would only slowly turn over a few revolutions. I charged and tried new batteries and even jumped the full battery. No difference. Now this week I replaced the starter and cables-- same thing, Pulled the muffler and opened the Exhaust crossover tube to the EGR (have not pulled the filter yet. Turned it over and it did puff slightly but no fuel odor), no difference. Put a socket on the crank and cannot currently get it to budge, (did not use a long bar shouldn't have to). Now I suspect the hydraulic pump may be the issue or a valve hung up. Can the pump do this? How does one relieve the drives pressure to eliminate or confirm this? I did open the Aux connection at the couplings.

 

[#40Fan]

With the key on, can you turn on the Aux and command them on (with the connections off/loose)?

What does the hydraulic fluid look like? Foamy? Any signs of water?

 

[North Idaho Wolfman]

First thing you need to do is get the WSM and read what it says to do.

 

[whitetiger]

Can the pump do this?

Yes, it could.

How does one relieve the drives pressure to eliminate or confirm this?

Remove the tandem pump and hydraulic pumps.

What error code was shown on the digital display?