coobie
Super Member
- Joined
- Sep 19, 2004
- Messages
- 6,302
- Location
- S.Michigan
- Tractor
- Kubota RTV 1100c, JD 740,Kioti DK 40 with KL401 loader .
940 hours on our 2006 Kubota RTV 900 with coast valve.Not one issue.
Coast Valve issues
- Thread starter Notforhire
- Start date
- Views: 15595
Jim Nelson
Platinum Member
I just bought a 1 owner RTV 900 with 560 hours on it and it is great except that I live on a very steep hillside and if I need to shift from 1 gear range to another I can't without stopping the engine. I've read a bunch of threads here and other forums from a Google search and have seen several mentions of a "compression relief valve knob" on the dash.If my machine has this knob I can't find it. Can anyone confirm the existence of such a knob or give any other advice on this problem? It is the hydraulic utility valve Turf model if that matters.The previous owner and I have never used this feature and he is no help as to the relief valve knob.
TIA Jim
PS yes I changed all oils and filters even though it had only been 100 hrs.approx. It is a 2005 year model.
TIA Jim
PS yes I changed all oils and filters even though it had only been 100 hrs.approx. It is a 2005 year model.
Last edited:
OP
Notforhire
Veteran Member
About center on the dashboard near the bottom, there should be a knob that resembles choke knob. If you still can't find it, You can PM me and I'll take a photo. If you can get a hold of a owners manual I'm sure it's shown there.
I think there is a placard that tells you how to operate it. Basically you hold your foot on the brake and pull out on the knob. This unloads the transmission allowing you to shift ranges or go into reverse.
For what it's worth, I needed to go through this procedure all the time. Since I installed the coast valve shifting is much easier and there is no more "binding" in gear.
It's been about three months since I put the coast valve in, and it's working great.
I think there is a placard that tells you how to operate it. Basically you hold your foot on the brake and pull out on the knob. This unloads the transmission allowing you to shift ranges or go into reverse.
For what it's worth, I needed to go through this procedure all the time. Since I installed the coast valve shifting is much easier and there is no more "binding" in gear.
It's been about three months since I put the coast valve in, and it's working great.
Jim Nelson
Platinum Member
Thank you for the reply. There is only a cigarette lighter in the area you describe. I do have the owners manual, which the p.o. said was the only manual he got with it when he bought it new, and there is nothing in it about the trans. or shifting only a service schedule.
I have owned 4 Kubota tractors and an RTV1140 and had all the manuals for them and this is the poorest and most incomplete one I've seen. It makes me leery of buying the W.S.M or parts book.
I have owned 4 Kubota tractors and an RTV1140 and had all the manuals for them and this is the poorest and most incomplete one I've seen. It makes me leery of buying the W.S.M or parts book.
OP
Notforhire
Veteran Member
Jim, I suspect that the reason you can't find the control knob is that it's no longer there.
I found this posting on TBN;
https://www.tractorbynet.com/forums...6750-rtv-900-difficult-change-selector-2.html
"Being stuck in gear and difficult to impossible to shift into "N" without killing the engine is an issue that has plagued the RTV since the getgo. It is a result of torque still being applied to the transmission as when stopping on an incline or as is often the case when plowing snow. The original RTV (like my 04 model) had no solution other than fine tuning the shifting and playing with the 'creep' (search this forum for detail). Around 06 they added the pressure relief knob on the dash which if adjusted correctly greatly improved the shifting issue. Later models moved the pressure relief to the break pedal and again the shifting issue is greatly improved provided it is adjusted correctly. Too bad kubota didn't see it necessary to permanently fix this issue in the recent new models."
Lots of info concerning your problem in this thread.
Best, Bill
I found this posting on TBN;
https://www.tractorbynet.com/forums...6750-rtv-900-difficult-change-selector-2.html
"Being stuck in gear and difficult to impossible to shift into "N" without killing the engine is an issue that has plagued the RTV since the getgo. It is a result of torque still being applied to the transmission as when stopping on an incline or as is often the case when plowing snow. The original RTV (like my 04 model) had no solution other than fine tuning the shifting and playing with the 'creep' (search this forum for detail). Around 06 they added the pressure relief knob on the dash which if adjusted correctly greatly improved the shifting issue. Later models moved the pressure relief to the break pedal and again the shifting issue is greatly improved provided it is adjusted correctly. Too bad kubota didn't see it necessary to permanently fix this issue in the recent new models."
Lots of info concerning your problem in this thread.
Best, Bill
Jim Nelson
Platinum Member
Thank you, this is what I suspected.On the 1140 I had for a short time when there was a shifting problem you could turn the steering wheel and that would help.It was a 2010 model. But not with this machine, if you are on any kind of grade it just locks up.I really appreciate the referral to the thread and will spend some more time searching.
Again thanks for the help,Jim
Again thanks for the help,Jim