Snow BX23 hydro oil freezing

   / BX23 hydro oil freezing #1  

Stargazer

Gold Member
Joined
Jun 4, 2006
Messages
403
Location
DSM IA USA 50310
Tractor
Kubota Bx-23
Hi OK I know I prob need to change sudt/filter. When below 20 F must have water in sudt as nothing works (3PT,FEL,STEERING,movement). Have bought a motor oil dipstick oil heater for SUDT dip hole. Question will just idle let sudt heat up in 1/2 hr or so (no load). . When cold works 20-30 seconds then nothing. Oil/filter only have 20 hrs on and $60 is alittle high so trying limp till warmer. Havn't checked to see if milky or sample in house to see if seperate when warm.; Other ideas? no warm garage diesel 911 hydro type product.

Thanx
 
   / BX23 hydro oil freezing #2  
Sounds like you know what you need to do. The safe thing to do is warm it up, drain the oil, flush the system and replace the filter and oil. If you need the tractor for winter you can have your dealer do it. I know it costs more $$, but how badly do you need it now?
 
   / BX23 hydro oil freezing #3  
But when it's seriously cold thats normal as oil is too thick to pump .If stored outside at -25c or colder Our hydro's wont move for 15 minutes or more minutes or so and you can for get steering or raising a loader too . Just start them and go for breakfast for half an hour :)
 
   / BX23 hydro oil freezing #4  
I put Amsoil synthetic hydraulic oil in my Bx this fall, all the hydraulics work great at -5, cost $100 plus filter.
 
   / BX23 hydro oil freezing #5  
You need to find out how you getting water in the hydraulic oil.
 
   / BX23 hydro oil freezing #6  
If you are not moving oil you will ruin your pump so you need to identify what is causing this problem. At 20 degrees F standard UDT should flow just not as well as SUDT. Take a jug of UDT andtry and pour it at 20 degrees andsee how thick it is.
 
   / BX23 hydro oil freezing #7  
You statement "when below 20 F" I read that as when temps are 20 degrees F not minus 20F. IF minus 20F, I would expect the oil to need a bit of warming to operate but not be frozen even at that temp. I recently moved my B26 from shed to shop when it was 20F with no warming at all, just cranked it at idle and raised the FEL, backed it up and pulled it into my shop and closed the door. NO warm up, other than maybe 10 seconds and it all worked. I didnt rev up the engine or anything just a slow roll out and in but no jerky movement or otherwise issues with oil temp.
Your tractor surely has some issues with the oil for it to not work, freeze up etc. You need to heat it up hot with your dipstick heater or other heating method and get the oil to circulate in the tractors system. Once the tractor hydraulic system is working, work all the hydraulics for at least 30 minutes or until the system is up to normal operating temp. This may take a while if outdoors and very cold, then drain the oil. I would unscrew the filter and drain it,to remove all the old oil, then reinstall it (no use to put on a $30 filter to flush with)then add about 1.5 to 2 gallons or about 50% of your tank capacity, of hot oil,(heat it up on a burner or deep fryer to about 180F) and pour it into the reservoir to circulate, work all the hydraulics to flush out the old oil , then drain this oil, NOW replace filter and fill with fresh oil of your choice and you should be good to go.

If you are getting water into your hydraulic system, you need to look for what might be loose and allowing water inside.
 

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