L3800 sick?

[bookemdano]

Took my L3800 in at 53 hours for the initial maintenance. After I got it back it
just isn't the same. 1. Power is down. 2. It bogs down. Revs will suddenly drop
from 2100 to 1700 to 1200 to 700 and if I clutch it, revs come back immediately.
It's almost like the transmission bogs it down. It's worse on a hill or under load.
Even using the hydraulics has caused it to bog down. It got 64 hours on it now
and it will do this at least 3 times per hour. Otherwise it runs fine except for
feeling like the power is down. Like it's straining all the time.
And it has never died. As soon as the clutch goes in the revs start coming back
up.
Anyone have any ideas? I really hate to take it back to the steal-er. It's
120 mile round trip and I'd have to make it twice (that's saying they fix it
the first time).
Thanks, appreciate any help.
Dano

 

[houstonscott]

Took my L3800 in at 53 hours for the initial maintenance. After I got it back it just isn't the same. 1. Power is down. 2. It bogs down. Revs will suddenly drop from 2100 to 1700 to 1200 to 700 and if I clutch it, revs come back immediately. It's almost like the transmission bogs it down. It's worse on a hill or under load. Even using the hydraulics has caused it to bog down. It got 64 hours on it now and it will do this at least 3 times per hour. Otherwise it runs fine except for feeling like the power is down. Like it's straining all the time. And it has never died. As soon as the clutch goes in the revs start coming back up. Anyone have any ideas? I really hate to take it back to the steal-er. It's 120 mile round trip and I'd have to make it twice (that's saying they fix it the first time). Thanks, appreciate any help. Dano

Wow, mine sits at 16 hrs. The 50 hr service is a engine oil/filter change and hydraulic oil filter change, front differential gear oil. Tighten wheel lugs and that is about it. Not sure how any of that could have effected or caused your symptoms. What did they do? Is yours HST? HS

 

[vrmnthntr]

Fuel filter??

 

[hawkeye08]

At least call the dealer and talk to them. Make sure you understand all that they did and ask them what it could be. If its their mistake, I would expect that they would come and get it for free and take care of it.

 

[tractortom55]

Make sure that they pushed bleeder pump knob all the way down and tighten it good

 

[DB Pilot]

I have around 300+ hr now on my L3800. Nothing like this going on. I have trouble seeing the Hydraulic fluid level in that little window. Hard to tell if it empty or overfilled? I am leaning towards wrong hydraulic levels. Maybe if you drained the fluid just to see how much you have. clean container and put it right back checking that little window. I had the BX2200 in for repair one time and they left the red filler cap off so by the time I noticed I had hydraulic fluid all over the back of the tractor. Just saying things get forgotten sometimes even when you do your own service. Hope I'm not leading you down the wrong path. :2cents:

 

[KennyV]

Check the fuel filter... if it is new or has been removed to clean.... If it has bleed the injectors, sounds as if there is air in the system and can not get a full squirt from the pumps...

 

[bookemdano]

That's what I thought too. It's an HST. But it ran perfect until the service
and immediately started this after the service.
Dano

 

[bookemdano]

Fuel filter??

Work order says they "checked fuel filter". My first thought was bad fuel so
I drained the tank and put fresh fuel in it. Didn't work.
Dano

 

[bookemdano]

Make sure that they pushed bleeder pump knob all the way down and tighten it good

You got me there. No idea what you're talking about. I'm a retired LEO and no mechanic by any stretch of the imagination.
That's why I bought the Kubota. I didn't want to have to do anything but routine maintenance. Could you tell me what to
look for?
Thanks,
Dano

 

[bookemdano]

Check the fuel filter... if it is new or has been removed to clean.... If it has bleed the injectors, sounds as if there is air in the system and can not get a full squirt from the pumps...

After changing the fuel, the filter was the next thing I checked. Work order says they checked it,
not changed it. I didn't remove it but it is tight, no leaks, hoses are clamped and no sediment in the
bowl. It does act like it's starved for fuel when under load but it don't do it all the time, just 2 or 3 times
per hour of work.
Dano

 

[art]

Change the fuel filter.

 

[bookemdano]

Check the fuel filter... if it is new or has been removed to clean.... If it has bleed the injectors, sounds as if there is air in the system and can not get a full squirt from the pumps...

It probably was removed to check it. I'll bleed the injectors today and see if that does it. Pouring the rain today and it only does it
periodically so it may be several days before I know if that did the trick. I'll let everyone know if it works or not. Thanks Kenny,
and thank you to everyone who replied.
Dano

 

[houstonscott]

There is a shut of valve at the fuel filter on the L3800 to make service easer, and eliminate air getting into system when changing filter. Check to see if it is fully open. A fuel filter change is not on 50hr service though. HS

 

[bookemdano]

There is a shut of valve at the fuel filter on the L3800 to make service easer, and eliminate air getting into system when changing filter. Check to see if it is fully open. A fuel filter change is not on 50hr service though. HS

I don't see a shut off valve on mine and the book don't mention it. You talking about the vent cock to bleed the
fuel system?
Dano

 

[Bluegill2]

Mine has no fuel shutoff valve between the tank & filter. If the tank is below 1/2 it wont flow fuel when servicing filter. Otherwise the fuel line can be clamped to stop fuel flow.

That said, your dealer needs to fix your tractor. Either come get it or do it at your place.

 

[bookemdano]

Mine has no fuel shutoff valve between the tank & filter. If the tank is below 1/2 it wont flow fuel when servicing filter. Otherwise the fuel line can be clamped to stop fuel flow.

That said, your dealer needs to fix your tractor. Either come get it or do it at your place.

That's next if bleeding don't fix it. It'll be a few days before I know if it works or not. If it does, great.
If not, I'll call them to come get it or fix it here.
Dano

 

[DB Pilot]

Dano,

I think my L3800 is running fine. However, if I am in the wrong speed range (always high gear) and try to start our or climb too steep a grade then I will loose RPM and speed. I can be running right along just fine and as grade increases I start losing RPM's. Most often I set it at the mid range for working and snow plowing. RPM's come back when I let off gas peddle and of course pushing the clutch takes all the load off and the engine returns to correct rpm's.

Good luck

 

[teg]

Check the brakes to see if they are partly set on???

 

[Bluegill2]

Yep, checking the brakes sounds too simple, but have seen this happen.


Mine never loses more than a couple hundred rpm and that takes a heavy load to do. No HST here though...