john deere 410 backhoe barely moves forward but moves in reverse ok

[Jack999]

Hello
I'm new to this forum and my name is Jack.
I just picked up a John Deere 410 Backhoe and it worked ok for a couple days and now it will barely move forward but it moves ok in reverse.
I called the guy back and he said that he broke a hydraulic line and he replaced it and it work ok before I picked it up.
my hydraulics work just fine and they respond fast and move normally, i can still dig with the machine and move it in reverse but barely moves in forward So what I'm thinking is it's the forward clutch packs' Is there anything else I can check that it mite be because I really don't want to split the backhoe and do the clutch packs if I don't have to.

Thanks in advance

 

[Ralph Copp]

Hello, I have an old 510B John Deere backhoe but have never had that problem. I would change the filter, tear it apart and check for metal, contamination, etc.. You could be right as per clutch packs, let us know if you find out what the problem is. I have changed lots of hoses, that shouldn't have anything to do with your problem. Best of luck.

 

[Jack999]

Hi Ralph
Thanks for your reply and I'm going to change the filters and clean the sump screen' I also want to get a hold of a pressure gauge and check the hydraulic pressure to see what it is.
If anyone else has any other Ideas let me know and it would be greatly appreciated. Thanks

 

[buickanddeere]

The low pressure hydraulic system in the transmission operates the transmission high-low, forward reverse and independent pto if so equipped. Oil capacity left after operating the transmission supplies the inlet port of the front high pressure hydraulic pump.
Sometimes the internal transmission hydraulic lines will shake, fatigue and break if the filter(s) and screen are not kept clean. Also any seal or O'ring in a machine of that age are failing. The clutch packs may just need a new set of seals. Have you installed a pressure gauge and checked the apply pressures ?

 

[Jack999]

The low pressure hydraulic system in the transmission operates the transmission high-low, forward reverse and independent pto if so equipped. Oil capacity left after operating the transmission supplies the inlet port of the front high pressure hydraulic pump.
Sometimes the internal transmission hydraulic lines will shake, fatigue and break if the filter(s) and screen are not kept clean. Also any seal or O'ring in a machine of that age are failing. The clutch packs may just need a new set of seals. Have you installed a pressure gauge and checked the apply pressures ?

Thanks for your reply
I'm picking up a pressure gauge tomorrow and could you tell me where abouts I should hookup this pressure gauge to check and see if I have good pressure

 

[jd110]

The pressure test ports are located on the reverser control valve. The brake valve is bolted to the side of the reverser valve. On the top of the valve are 2 ports. #29 in picture is the forward clutch test port. #31 is the reverse port. You should see around 160 psi.

 

[Jack999]

The pressure test ports are located on the reverser control valve. The brake valve is bolted to the side of the reverser valve. On the top of the valve are 2 ports. #29 in picture is the forward clutch test port. #31 is the reverse port. You should see around 160 psi.

That will help me out a lot , Thanks

 

[Jack999]

I was wondering if anyone here could let me know where the reverser control valve is located' I looked around today after I got my backhoe in the shop and I can't seem to see it under the backhoe' Is it hidden behind something where you can't see it. I want to do a pressure test on the forward port to see what it is before I split my backhoe.

 

[Tx Jim]

Jack
You must not have read jd110's post & I'll quote him.[/quote] """"""""""The brake valve is bolted to the side of the reverser valve.""""""""""""" [/quote]

You can remove RH footrest for a better view of valve

 

[Jack999]

Thanks
I read so many post about the backhoe and clutch packs and everything I must've missed it or forgot about it. Thanks again

 

[Jack999]

OK I finally got time to put the tester on the forward clutch test port. #29 and started it and put it in forward and gauge barely moved. Checked port # 31 reverse port and only got 90 PSI and it's suppose to be around 160 so I think I have a problem there. Do you think it's the clutch packs or could it be something else.
Thanks

 

[Tx Jim]

Problem could be in shift valve but more that likely clutch fwd circuit or pack. Have you checked shift linkage to be sure linkage is completely shifting valve?

 

[Jack999]

Yes I have looked at the linkage and pins and they are alright' I took the pin out and tried to shift it by hand to see if it made a difference and it did not. I will take the shift valve apart and look at that but do you think it is the clutch packs.
Thanks

 

[Tx Jim]

Yes more than likely failed sealing rings

 

[Jack999]

OK Thanks
Is there anything else I should check out first to make sure before I split the backhoe and check the clutch packs.

 

[Jack999]

Ok I had a chance to split my backhoe and I'm going to take a look at the clutch packs but after I split it I notice the end of the gear shifter shaft has a peace broke off the notch where the shifter goes in would this stop the backhoe from moving forward or do you still think it's the forward clutch pack.
Here is a couple pictures so you can see what I'm talking about.

 

[Tx Jim]

Broken tab on shift rail might keep trans from shifting into high range but tractor should still move fwd in low range if fwd clutch pack is operating correctly. I've seen several of those tabs broken off. Some have been welded back in place.

 

[Jack999]

Thanks for your reply Jim
That is what I was thinking that it should still move forward in high or low at least one of them but it hardly move in forward with throttle wide open but it will move in reverse I think it's still the forward clutch pack but I thought I would put this up here just to make sure before take the clutch packs out and spend my money on new clutch packs.
Thanks again
Jack

 

[buickanddeere]

I wonder if failed clutch packs caused low oil pressure ? Or did low oil pressure cause the clutch packs to fail?

 

[Jack999]

Well I got the clutch packs out today and the reverse pack isn't to bad but I will still probable change them because I have them out.


I took the Forward clutch pack out and it is bad' 2 clutch pad are burnt up and the 3 one is all most gone and the plates & big washers are burnt and warped.