6180 Harsh Clutch, Steering going heavy etc....

[davedb]

It's very possible the 4wd seals have gone, a easy way to test is to take the oil feed pipe of to the drop box and with the tractor off blow into the fitting on the drop box with a air line and listen out for any bubbling noises coming from the gearbox as the air escapes into the oil

 

[TrewithickFarm]

@davedb is the drop box just in front of where the pickup hitch pivot is? are the seals a big job to do??

 

[TrewithickFarm]

Is this bits I need to get out??

 

[TrewithickFarm]

Have just tried swapping the plugs over and made no difference.
Just put a multimeter on the 4wd plug and getting 11.3v with switch on and off.......

 

[davedb]

Did you try blowing air down the steel pipe that goes to the drop box? And yes it's just in front of the puh

 

[TrewithickFarm]

@davedb No I didnt as my compressor isnt working. if i had a piece of hose and blew down it myself would that work?

 

[davedb]

@davedb No I didnt as my compressor isnt working. if i had a piece of hose and blew down it myself would that work?

I doubt it tbh you really need more pressure than that, have you got a workshop manual? That will show you how to pressure test everything properly

 

[TrewithickFarm]

I doubt it tbh you really need more pressure than that, have you got a workshop manual? That will show you how to pressure test everything properly

Yeh have got a workshop manual, just need to do a mornings work with it to show the symptoms and see what gauges read

 

[TrewithickFarm]

@davedb are the 4wd seals a big job to do?

 

[madscientist]

3125 assembly had to be put in press to take tension off to remove . a damaged gear

 

[madscientist]

11.3 volts strange if alternator doing 14v. Fault in my ECU stopped hi lo changes. Careful you don't spend unnecessary

 

[davedb]

@davedb are the 4wd seals a big job to do?

Not too bad no but you need to be sure that's the problem before you jump in, have you tried putting a good 12v feed to the 4wd solenoid to see if it disengages?

 

[TrewithickFarm]

No not done that yet. going to rig up a test lead this evening. I have had the solenoid off and put 12v from a battery in the workshop and solenoid didnt magnetize. how strong should it be?

 

[davedb]

No not done that yet. going to rig up a test lead this evening. I have had the solenoid off and put 12v from a battery in the workshop and solenoid didnt magnetize. how strong should it be?

Try swapping it with another one, any of the others will do to test it should magnetise when you put 12v to it

 

[TrewithickFarm]

Will do that tonight, Should it hold something like an M8 bolt??

 

[TrewithickFarm]

Been out this evening with the topper and got the tractor doing its fault. First Put the gauge on the test point on the right hand hydraulic cover. Had 17bar there no difference when clutch depressed or 4wd button pressed. Plugged gauge on to test point on forward reverse shuttle pack and had over 25bar when it went into gear only 13bar when it wouldn't drive.

 

[TrewithickFarm]

 

[davedb]

Been out this evening with the topper and got the tractor doing its fault. First Put the gauge on the test point on the right hand hydraulic cover. Had 17bar there no difference when clutch depressed or 4wd button pressed. Plugged gauge on to test point on forward reverse shuttle pack and had over 25bar when it went into gear only 13bar when it wouldn't drive.

You might want to try a bigger gauge as of it was doing 25 it was maxing your gauge out but you've proved you've got a problem anyway, what I'd do now is remove the pipe that comes from the valve and goes into the bellhousing and blank it off and with your oil hot try your gauge and see if you've still got the low pressure if you have the fault lies in the clutch control valve if you haven't you'll have to split the tractor and do the seals in the clutch pack

 

[madscientist]

I think but i might be wrong. Your 3rd picture looks like the trailer brake valve test port. It uses linkage pressure. Should read upto 3000psi if closed centre pump. I'd service clutch/dynashift valve outside before splitting incase it is sticking

 

[madscientist]

I think you also powered the 4rm solenoid with another power supply. What needs to be checked is if the mechanical element if the solenoid is working. Swap it with the very top outfit which is PTO brake one. They might energize ok but actual internal valve could have failed not letting flow through to work 4wd pack