Have a problem with a Kubota hydrostatic transmission it’s a B1750 and have no drive , could be the transmission oil pump but have limited knowledge of it, can you assist please.
Kubota B1750
- Thread starter Dave Kubota
- Start date
i do not own your model, my tractor is a b2100. what i can toss your way is two things what could cause your tractor not moving ?, one being the hydro pump at the engine ?, or worse case, the hydrostat transmission is bad ?. if its the hydrostat transmission ?, be warned !!!..this is very high dollar to replace. i rebuilt the hydrostat in my tractor, so far...so good with my transmission. it cost an arm and leg to replace the bad parts in it, but i got it done. first time ever in my life not only working on a tractor ?, let alone splitting a tractor to get back to where the hydrostat was !. if i were you ( and i know i am not ), i'd start my removing the pick-up screen from the back axle that filters the hydro oil, see if its clogged ?, see if it has metal shavings in it ?. if it has metal shavings in it ?, then odd's are..the hydrostat is toast.
I own a B1750HSD bought new in 1994. Best thing I've ever bought and have had no trouble with it.
The B1750 has a foot clutch. Does it appear to function normally? Do mid and rear PTO work?
How many hours and what do you know about service history? Did the problem start suddenly or did it build over time?
Asuming you have checked HST oil level and filter....
Thanks I'll take a look, might send u a few photos if that's OK? so I know what the pick up screen is like.
Clutch seems OK as I press to start it, haven't checked mid but rear PTO is fine, think there's around 3500 hrs also probably good service history as it belonged to a golf club, as far as I know the club spent a lot of money on it and a week later the drive stopped working, I assume they brought it back and traded it in for a new machine, I think it sat outside for a year or so, I just replaced the starter and it turned over first turn of the key.
on my tractor, the pick up screen is on the right rear , inside the transaxle, lower bottom side. it has a line running to it, out side has a large nut on the end. next to it is a copper washer i think it is ?, then the line, then another washer, then screws into the transaxle. i do not know where your screen is ?, you can go to messicks ( kubota tractor dealer ), locate the micro fich for your year, make, model, then look trhough the break down pages to find this screen. chances are, it will be located on the hydraulics area.
There are two.
HST strainer is inside the left rear wheel. Hydraulic pump strainer is on right side, IIRC.
North Idaho Wolfman
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Let's dig into it a little more, Engage the rear PTO so it is spinning then try to move the tractor.
Does the PTO slow down or quit spinning?
Does the HST make any noise when you push the pedal?
Have you checked the range lever?
Does the PTO slow down or quit spinning?
Does the HST make any noise when you push the pedal?
Have you checked the range lever?
Hi
Engaged PTO , stays at the same speed when i press the pedal, there is a reduction in rev's when i press pedal, fairly sure I checked all lever's.
North Idaho Wolfman
Moderator
Staff member
Lifetime Member
Equipment
L3450DT-GST, Woods FEL, B7100 HSD, FEL, 60" SB, 743 Bobcat with V2203, and more