HST problem L4330
- Thread starter k4330
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- kubota l4330
dex3361
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- Aug 22, 2008
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- 3,494
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- N. of Charleston WV
- Tractor
- Kubota L4400-1 HST,FEL, 3x3 remotes, TNT. BX1500 54 mmm
Could you explain what you mean by weak? Did this happen suddenly or gradually? Does it make any strange noises? Did it start after the fluid change? What type fluid was in it befffore the change and after? Did you replace both filters(hydraulic and hst)?The answers to these questions might help diagnose the problem.
When in mid range and it has been run for a while, when idiling it is hard to move meaning it wants to be idled up to move. It just doesn't seem to have the power it used to...I replaced all the filters and used kabouta fluid at around 400hrs.. It was fine after and has gradually getting weaker.. No noises..
dex3361
Elite Member
- Joined
- Aug 22, 2008
- Messages
- 3,494
- Location
- N. of Charleston WV
- Tractor
- Kubota L4400-1 HST,FEL, 3x3 remotes, TNT. BX1500 54 mmm
Does it feel as though it is dragging? If so check the brakes and brake linkage. There was a post on the Kioti forum about a tractor with a hst problem like yours and it even went to the dealer and they missed that the brakes were hanging up. It might be worth a look.
dex3361
Elite Member
- Joined
- Aug 22, 2008
- Messages
- 3,494
- Location
- N. of Charleston WV
- Tractor
- Kubota L4400-1 HST,FEL, 3x3 remotes, TNT. BX1500 54 mmm
I dont know if this model has a strainer on the suction side of the hydraulic supply line but a restriction will give some of the same symptoms do you have a parts manual for your tractor? If not go to this site and follow the link to the manuals screen and request a parts manual for your machine and make sure and request for all of the kubota equipment that you have FEL,Hydraulic remotes etc. then they will send you alink to download the parts manual in PDF format. TractorSmart home page
