MF 390 lost steering

Dry Rot

Member
Livestock Farmer
As the header says. I have been using the bucket on the front loader to fill holes (using the back of the bucket to smooth lumps), so lots of too'ing and fro'ing and short tight turns. Suddenly, there is no steering. The steering wheel turns both ways without a lot of resistance but the wheels don't move. The tractor still goes backwards and forwards and I can change gear/range but in a straight line, so it is steering only that has been lost. I know the hydraulic filters need cleaning (another "to do" job!). Could that be it? There's plenty of fluid and it looks clean. Fortunately, it's not far from the shed but snow and gales forecast. Anyone? The Shop Manual tells how to change the filter in the pump if that's likely to be the problem.
 

Lincs Lass

Member
Location
north lincs
Either the steering ram has blown the seals and oil is getting past or the steering orbital unit has also popped a seal ,,the gears will still work as they are not oil driven .
 

Dry Rot

Member
Livestock Farmer
Either the steering ram has blown the seals and oil is getting past or the steering orbital unit has also popped a seal ,,the gears will still work as they are not oil driven .

Thanks for your reply. Is that a big job or something I might be able to do in the field or take off and take to a mechanic?
 

Dry Rot

Member
Livestock Farmer
It's not an oil problem then its either a broken ram pin or track rod end.

Brilliant! Thank you, shumungus. Without TTF, I'd now be frozen stiff on my back in the field with a gale blowing snow up my trouser legs trying to drain oil so I could clean filters!

Yes, one track rod end is flapping around and definitely broken. Should I replace both? I might even be able to pop it back on and strap it round with some baler twine to get it back into the shed. One happy old man here.

But thanks for all the replies.
 

Green grower

Member
Horticulture
Location
Gosberton
Brilliant! Thank you, shumungus. Without TTF, I'd now be frozen stiff on my back in the field with a gale blowing snow up my trouser legs trying to drain oil so I could clean filters!

Yes, one track rod end is flapping around and definitely broken. Should I replace both? I might even be able to pop it back on and strap it round with some baler twine to get it back into the shed. One happy old man here.

But thanks for all the replies.
I'd change both while doing it it's been left and right the same amount of times not that expensive good for piece of mind
 

agrimax

Member
Location
Co Down
@Dry Rot
Is your loader a power loader? ie can you lift the front wheels off the ground by pushing down on the bucket? If so,you could reverse over to the yard/shed on the bucket and steer with the independent brakes,if you want to get into the shelter...
 

shumungus

Member
Livestock Farmer
Brilliant! Thank you, shumungus. Without TTF, I'd now be frozen stiff on my back in the field with a gale blowing snow up my trouser legs trying to drain oil so I could clean filters!

Yes, one track rod end is flapping around and definitely broken. Should I replace both? I might even be able to pop it back on and strap it round with some baler twine to get it back into the shed. One happy old man here.

But thanks for all the replies.
I agree with @Green grower and replace both. Bad enough it fails whilst tootling about the field, completely different matter when it fails belting down the road. And when you have it in change those oils/filters. That's a classic bit of British Engineering there that's probably worth more than you paid for it. Look after it as some bits are getting expensive and/or hard to find.
 

24/7 farming

Member
Location
Donegal
Yep do both, and for the price of them get two spare aswell, they seem to only ever break when it stuck in a muck hole, or a Saturday evening with full shed to be fed on Sunday! Now that I have spares they will probably never break!!
 

Dry Rot

Member
Livestock Farmer
Yep do both, and for the price of them get two spare aswell, they seem to only ever break when it stuck in a muck hole, or a Saturday evening with full shed to be fed on Sunday! Now that I have spares they will probably never break!!

The same track ends do seem to fit a range of tractors. I can stretch to a pair which should see me out, but not four! Prices seem to range from £40 to over £70 + VAT + delivery each.

Tractor now in the yard -- an inch at a time with baler twine and an old ratchet strap! Too tight a turn to get her into the shed but I may have another try in the morning.
 

Lincs Lass

Member
Location
north lincs
The same track ends do seem to fit a range of tractors. I can stretch to a pair which should see me out, but not four! Prices seem to range from £40 to over £70 + VAT + delivery each.

Tractor now in the yard -- an inch at a time with baler twine and an old ratchet strap! Too tight a turn to get her into the shed but I may have another try in the morning.
Are these the ones
 

Henarar

Member
Livestock Farmer
Location
Somerset
Brilliant! Thank you, shumungus. Without TTF, I'd now be frozen stiff on my back in the field with a gale blowing snow up my trouser legs trying to drain oil so I could clean filters!

Yes, one track rod end is flapping around and definitely broken. Should I replace both? I might even be able to pop it back on and strap it round with some baler twine to get it back into the shed. One happy old man here.

But thanks for all the replies.
if its popped off the ball bit of the track rod end you can put it back on cut a washer in half and weld it on the outer bit of the track rod end to hold it in place
 

shumungus

Member
Livestock Farmer
@Dry Rot
If yours is 94 does it only have one Track Rod on the end of the ram and a pin on the other end and is this the track rod that is broken?
If this is the case there are two smaller track rod ends on the tie bar but I'm guessing it wasn't either of these that broke as no wheels were moving.
 
Last edited:

Will you help clear snow?

  • yes

    Votes: 68 32.1%
  • no

    Votes: 144 67.9%

The London Palladium event “BPR Seminar”

  • 9,494
  • 123
This is our next step following the London rally 🚜

BPR is not just a farming issue, it affects ALL business, it removes incentive to invest for growth

Join us @LondonPalladium on the 16th for beginning of UK business fight back👍

Back
Top