Kubota L4701 HST

Keith C

New member

Equipment
Kubota L 4701 HST
Oct 30, 2022
5
0
1
Stillwater OK
Need help L4701 HST wont start. New battery, stater cable, Replaced particulate filter and fuel filter then bleed fuel filer bank at bleed port on top of filter bank.
 

Russell King

Well-known member
Lifetime Member

Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Jun 17, 2012
5,356
1,411
113
Austin, Texas
Won’t start covers such a wide range of problems that it is impossible to help you much.

Please explain what the tractor does and does not do in greater detail and then you may get more support
 

Keith C

New member

Equipment
Kubota L 4701 HST
Oct 30, 2022
5
0
1
Stillwater OK
When was it running last? Are you a new owner?
It was running about 14 days ago, but it would run then die and then restart run for a few minutes then die. I found the corrosion on the positive battery post. I tried to clean it and it fell apart so I replaced it. Purchased the tractor two years ago from previous property owner.
 

Vlach7

Well-known member

Equipment
L47 305DT JD500C
Dec 16, 2021
345
251
63
Frazier Park Ca
Injectors, bad fuel? Just shooting from the hip, need to let the pros respond. Have you ran a search on this site? I am sure I've seen similar issue before.
 

Russell King

Well-known member
Lifetime Member

Equipment
L185F, Modern Ag Competitor 4’ shredder, Rhino tiller, rear dirt scoop
Jun 17, 2012
5,356
1,411
113
Austin, Texas
If it was running fine before the 14 day ago event then it is probably an electrical problem. Check the fuses on fuel solenoid and ground cable connections to frame of tractor. Basic stuff to start with but needs to be done.

I assume that the tractor shuts down when the key is turned off? I suspect that solenoid has stopped holding the fuel open (if that is the system your tractor uses). Try to find out if the tractor has a solenoid that holds fuel off for seconds to stop the engine or if the solenoid holds the fuel open while running.

I think that bleeding the fuel system is probably pretty easy and is covered in the operation manual. New tractors often just turn the key to run for a few seconds to bleed the air. Is your tank full of fuel or low? If less than half a tank then top it off if you can. There may be a failure in the lift pump if it has one that is not supplying fuel to the injection pump.

I would focus more on the control of the fuel at first and eliminate any electrical problem