5740 L hydro stat reverse only

[got to love orange]

Hi
new with a problem no neutral or forward on peddle ? just started yesterday and I have looked at the older posts and now have some ideas to look at but was hoping for a easy fix if there is one ?

2013 5740 L with a front pronovost blower

thanks for any help

dave

 

[Russell King]

You need to provide a better description of your problem to get any real help

 

[got to love orange]

You need to provide a better description of your problem to get any real help

after starting the tractor with the clutch in as I let out the clutch it starts to back up and when I push the foot peddle forward it still goes backwards . no neutral or forward

the only way to stop it is move the low or med or high shiftier to neutral when the engine is running

dave

 

[RCW]

Don't know much about your tractor, but certainly suggest getting a Workshop Manual (WSM). I see one here:

Kubota Tractor User Manuals Download | ManualsLib

www.manualslib.com

I would first suspect a linkage issue, but there's many possibilities.

 

[BigG]

Don't know much about your tractor, but certainly suggest getting a Workshop Manual (WSM). I see one here:

Kubota Tractor User Manuals Download | ManualsLib

www.manualslib.com

I would first suspect a linkage issue, but there's many possibilities.

I agree with RCW. Did this start out of the clear or has it been a slow growing problem? Look a the linkage from the peddle all the way to the transmission. Look for rub marks, a bent rod, some thing that might be missing.

 

[RCW]

Assuming it’s an HST, because you say pushing a pedal and it goes reverse either way?!?

EDIT: I missed it in the title...yes an HST. Sorry about that....my bad...

Like BigG said - - definitely start to look at the linkage from pedal down. There's times they get bent.

A parts diagram might help too. Agree to legal, and enter your L5740 model number. There's 2 series, one being L5740-3. Look for speed control, others may help too.

https://apps.kubotausa.com/illustrated-parts/

 

[got to love orange]

Assuming it’s an HST, because you say pushing a pedal and it goes reverse either way?!?

EDIT: I missed it in the title...yes an HST. Sorry about that....my bad...

Like BigG said - - definitely start to look at the linkage from pedal down. There's times they get bent.

A parts diagram might help too. Agree to legal, and enter your L5740 model number. There's 2 series, one being L5740-3. Look for speed control, others may help too.

https://apps.kubotausa.com/illustrated-parts/

yes it is a hst and I looked at the linkage all is ok and under sprayed with fluid film so everything moves very easy

I was thinking about unplugging the reverse and the forward plug on the solenoid's and reversing the plugs to see if it is a bad solenoid .

dave

 

[whitetiger]

yes it is a hst and I looked at the linkage all is ok and under sprayed with fluid film so everything moves very easy

I was thinking about unplugging the reverse and the forward plug on the solenoid's and reversing the plugs to see if it is a bad solenoid .

dave

You have an electrical issue, the only linkage is for the Auto-Throttle. You are going to need a Work Shop Manual unless you are really lucky.

 

[got to love orange]

I do have a service manual and I to think it is electrical but any ideas where to start ? kinda sad as I parked it about 2 weeks ago and all was great then started it the other day then pushed the go peddle in reverse to back out and all was good up until I pushed the go peddle to forward and nope still in reverse

dave

 

[got to love orange]

GOOD NEWS !!!!

Jacked up the tractor and put jack stands under the rear axel then with the help of my son on a creeper and a 6 " steel drift he taped the middle ( reverse ) solenoid as I pushed the go peddle forward neutral reverse . It took a while for the transmission to come out of reverse then after some back and forth with the go peddle it started to work as it should .
So we jacked it up and removed the stands and removed the jack then opened up the garage roll up door and I fired up the tractor and let out the clutch and it did not move until I pushed the go peddle in forward and drove it out of the garage .
After it was outside I drove up and down the driveway forward and reverse many times and all is good for now and I will exercise the tractor more now to see if this fixed the sluggish reverse solenoid and if not I will be ordering a replacement solenoid

We use this tractor for snow removal and in the summer I have used the rear drag blade to grade the back driveway and now I will drive it a little more to keep things moving

So thanks for the help

Dave

 

[armylifer]

That is good news. I am glad that it worked properly for you. Your description of the fix may help others that encounter the same issue, so thanks for that.

 

[got to love orange]

thanks !
yes it sure is great when people post a what happened to let others know and yes lets hope other people can see this post and it helps them if they have a similar problem

dave

 

[Heavyopp]

New Guy here, Not new to kubota but new to the forums. Since there is no introduction thread I'm just jumping in right here. Yes I realize this thread is a few years old. If no action here I'll start a new thread, just thought this would be better.

I have 4 kubotas currently, Have had half a dozen others over the years. Irrigation contractor in New jersey, In the off season we snow plowed. Gave up plowing 4 or 5 years ago, still have some of the snow equipment. L series Kubotas with the factory cab and the Kubota 7 foot snow plow blade and subframe where the clean up crew on my 400 unit condo site I plowed for 35 years.

Anyway, to my problem which is exactly what the OP had. Looks like the OP hasn't logged in in a few years so I can't ask him how it all worked out.

L5740 HST gets stuck in reverse. Peddle in neutral machine travels in reverse, peddle in reverse machine goes in reverse, peddle in forward machine doesn't move. This happens randomly. Sometimes can run for 6 hours, sometimes 6 minutes. Once it happens there is no way to correct the HST operation. Shut down and come back the next day machine is OK till it happens again.

When the machine is running properly reverse pulses. Never a smooth, controllable reverse. 1 or 2 seconds of power then what seems like 1 or 2 seconds of coast.

I've always thought a stuck solenoid. Where is the solenoid located? Does a solenoid exist? Part#, parts diagram link, any help would be very appreciated.

Thanks, Jer

 

[GrizBota]

Interesting. I read the original thread, not knowing it was a few years old. Anyhow I wondered two things:

1) Is the reverse solenoid (center one as per the OP) externally or internally mounted (e.g. how easy is it to swap out),
2) Since it’s an electrical problem that can be corrected by knocking it loose (OPs repair method), is the repair itself temporal?

The WSM should address number 1 and your experience may suggest yes to number 2.

Good luck with it. Be sure to share your solution once you get it sorted out.

 

[Heavyopp]

Best I can tell is there are only 2 solenoids/proportional valves. Not sure where the OP got a 3rd from.
forward and reverse Proportional Valves: TD170-59310 - kubota part number

This thread seems to sort it out pretty well:

HST Issue - Jerky Motion - SOLVED

I am hoping members can help with a situation I’m having with an L4740HSTC-3 tractor. Issue: Ground speed can be very erratic and jerky while HST pedal held in constant position. It can act properly and then start acting up. Background Info: It doesn’t do it all the time, but it can act...

www.orangetractortalks.com

On the 5740 these valves are on the right side of the machine, under the cab, down by the HST control pedal. They are behind a cover plate. I'll get to them tomorrow, remove and inspect. I doubt I'll find anything but I will swap them and see if my problems switch from reverse to forward. most Likely I'll have to change at least one of the valves.