I have my 300 JD garden tractor fitted with a loader presently on blocks for lost of hydraulic pressure in the FEL will be checking that out soon but in the mean time I have a question about my HST whining when the tractor is under load is that normal ?
Hydro stat transmission whine
- Thread starter emileo
- Start date
- Views: 11483
sweettractors
Advertiser
First, I would check filters and fluid levels. Ken Sweet
davedj1
Veteran Member
It would depend on your definition of "whine"
I think all hydrostat transmissions whine to an extent. Maybe you are low on fluid and that's why you have lost your loader hydraulics and have a severe whine?
I think all hydrostat transmissions whine to an extent. Maybe you are low on fluid and that's why you have lost your loader hydraulics and have a severe whine?
oldnslo
Super Member
I believe the FEL hydraulic is supplied oil by the HST charge pump. No FEL would point towards loss of flow which will make the HST noisy. Like Dave suggested, check the fluid level.
RalphVa
Super Member
- Joined
- Dec 19, 2003
- Messages
- 7,885
- Location
- Charlottesville, VA, USA
- Tractor
- JD 2025R, previously Gravely 5650 & JD 4010 & JD 1025R
All 3 of the JDs with HST have had the whine. Guess if you don't like it, you gotta go to a 3 series or Kubota L series gear. LOTS heavier tractors. In most cases, you don't need all that weight. Take the HST whine.
Ralph
Ralph
Roadworthy
Elite Member
It seems most if not all HST tractors are prone to whine. Some fluids may cause less whine than others. Use what the manufacturer recommends. Avoid mixing different fluids.
Sawyer Rob
Super Member
That can't be true...
When I posted that I can't stand the whine of those whiner transmissions, numerous folks here "claimed" THEIR tractors had NO whine at all!! Of course, they are the same guys that say, HUH?? all the time! lol lol
SR
4570Man
Super Star Member
- Joined
- Apr 7, 2015
- Messages
- 18,326
- Location
- Crossville, TN
- Tractor
- Kubota M59, Kubota L3800, Grasshopper 428D, Topkick dump truck, 3500 dump truck, 10 ton trailer, more lighter trailers.
I know you don’t believe it and probably never will but some HST trans don’t whine. I’ve had 2 HST+ Kubotas and they neither one whine. The cheaper economy grade Kubotas whine terrible. And my hearing is fine. What about your HST dozer. Does it make the dreaded whine?
The fluid is fine I top it up last fall with JD Hy guard when I change the filter not sure what type was in there but it didn't make any difference with the whining which for me seems a little to loud . and by the way I found why I lost the pressure to the FEL the key from the coupling driving the pump sheard off. FYI the FEL on this tractor does not get its pressure from the transmission but it dose drive the hydraulic pump, I know very confusing . (This tractor is a mutt lol has kubota orange rear rims ,a very well made custom loader and a Honda 20hp motor
:confused2:
TnAndy
Veteran Member
- Joined
- Aug 9, 2013
- Messages
- 1,993
- Location
- East Tennessee
- Tractor
- Yanmar LX410...IHI 35J excavator Woodmizer LT40
My previous New Holland 1925 hydro had no whine at all. My neighbor has a NH TC30 and it screams so loud it sounds like it's going to fly apart.....I can hear it 1/2 mile up the road at my house....seriously. Dealer said nothing is wrong with it. Another neighbor with a Kubota HST, no whine.
