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12 above this morning & everything working as it should, but to be on the safe side I'm going to get the fluids changed as soon as I can get a filter kit. I think that negative bitter wind at 35-40 below was to much for the HF and it got to thick to pump even tho it had super UDT in it.

Mine starts just fine, (plugged in) I can't back up or go forward and no 3 pt or front bucket movement or steering at this point. Don't know how long I can let it idol to warm up without damaging the hydraulic pump.

They used Super UDT according to the service invoice sheet.

Everything done at Kubota

Generally, the freezing point of hydraulic oil is -10℉, at which point the fluid is unusable; however, even at low temperatures above its freezing point, fluid can increase in viscosity or become thicker. This can adversely affect the performance of hydraulic pumps and motors. It has been down...

yes both filters, no movement to 3 pt, loader or PS

HST

Trying to keep up.

40 hrs. since serviced at 50 hrs in 19. all fluids. tractor has a total of 89 hrs, had it since new

My L2501 HST starts just fine after being plugged in. The weather here has been -20's and the hydraulics seem to be frozen. fluid is up and no frothing or milky look. No operating 3 pt or front loader and no forward or reverse action or PS. Does it hurt the hydraulic pump to let the tractor idol...