Hi and Thank you for an awesome site that has already helped me lots over the years just by reading... I'd like to ask advice with a problem that my dealer didn't address or repair when my tractor was recently serviced.
My 2007 Grand L3940 HST+ with 380 hrs. on it always had tons of power for mowing/tilling, loader work, etc.; this summer, I had a local 21yr. old "help" me to mow, till and plant(80 machine hrs.) because I had to be out of town most of the spring/summer. This fall, when I got some precious "seat" time on her; I noticed that the hydro has a moderate whining noise now and I had to use Low HST Range with Low/Turtle Range on the Plus Lever just to maintain 2500rpm while brush hogging... I can't use High Range to roll down the lane or road like I used to either. The engine loses major RPM's whenever the HST pedal is pressed Fwd or Reverse(I think?)... (almost like the brake was on, but it's not) Hyd.Fluid appeared normal level/condition.
I explained this to my servicing Kubota Dealer and along with other parts/services, asked them to diagnose and remedy the loss of power issue, flush & change Hydraulic fluid/filters... an expensive($1300) service/parts bill later, absolutely no difference and the dealer said that they changed filter/fluid and thought that would solve the issue, but they didn't test drive it for power loss afterward other than loading it on my trailer... I should have tested it before picking it up... I'm working 6 hours away and can't conveniently trailer the tractor over several times, so I'm asking for help to get them going in the right direction when I take it back again...
What specifically should I ask them to do to diagnose and remedy this issue? I've read of a hydraulic pressure check? There has been a substantial loss of power I'd have to relate to the HST based on my limited experience... Engine seems to start, come to normal temp and run fine otherwise.
Thanks so much for any advice or direction based on your expertise or experience...
My 2007 Grand L3940 HST+ with 380 hrs. on it always had tons of power for mowing/tilling, loader work, etc.; this summer, I had a local 21yr. old "help" me to mow, till and plant(80 machine hrs.) because I had to be out of town most of the spring/summer. This fall, when I got some precious "seat" time on her; I noticed that the hydro has a moderate whining noise now and I had to use Low HST Range with Low/Turtle Range on the Plus Lever just to maintain 2500rpm while brush hogging... I can't use High Range to roll down the lane or road like I used to either. The engine loses major RPM's whenever the HST pedal is pressed Fwd or Reverse(I think?)... (almost like the brake was on, but it's not) Hyd.Fluid appeared normal level/condition.
I explained this to my servicing Kubota Dealer and along with other parts/services, asked them to diagnose and remedy the loss of power issue, flush & change Hydraulic fluid/filters... an expensive($1300) service/parts bill later, absolutely no difference and the dealer said that they changed filter/fluid and thought that would solve the issue, but they didn't test drive it for power loss afterward other than loading it on my trailer... I should have tested it before picking it up... I'm working 6 hours away and can't conveniently trailer the tractor over several times, so I'm asking for help to get them going in the right direction when I take it back again...
What specifically should I ask them to do to diagnose and remedy this issue? I've read of a hydraulic pressure check? There has been a substantial loss of power I'd have to relate to the HST based on my limited experience... Engine seems to start, come to normal temp and run fine otherwise.
Thanks so much for any advice or direction based on your expertise or experience...