MF 3085 dynashift feels stuck

[dannewhouse]

If you have it in 1-4 and forwards or backwards tractor won't roll.

Pull it out of either 1-4 or other leaver into N and it will roll.

Seems free on linkage, reset linkage lengths to 40mm. Tightened grub screw onto shaft.

It selects every gear including low range and dynashift works.

I'm thinking it's somehow trying to select 2 gears.

Definitely gears not handbrake or brakes as releases when taken out of gear.

 

[daveydiesel1]

If you have it in 1-4 and forwards or backwards tractor won't roll.

Pull it out of either 1-4 or other leaver into N and it will roll.

Seems free on linkage, reset linkage lengths to 40mm. Tightened grub screw onto shaft.

It selects every gear including low range and dynashift works.

I'm thinking it's somehow trying to select 2 gears.

Definitely gears not handbrake or brakes as releases when taken out of gear.

Is it stuck in 4wd?

 

[dannewhouse]

Is it stuck in 4wd?

Nope.
Comes in and out 4wd as should, I'm 99/ got to be gears as when parked on a hill only thing that lets it roll is put one stick in N.
Dip clutch do anything else still holds itself.
(Was going to turn engine off to prove nothing with that)

Going to take gear linkage off to prove that otherwise suspected bent fork?

 

[daveydiesel1]

Nope.
Comes in and out 4wd as should, I'm 99/ got to be gears as when parked on a hill only thing that lets it roll is put one stick in N.
Dip clutch do anything else still holds itself.
(Was going to turn engine off to prove nothing with that)

Going to take gear linkage off to prove that otherwise suspected bent fork?

Surely if trying to engage another gear it woukd be making unsavoury noises, possible bearing on its way out?

 

[Wellytrack]

I had this before. New oil and filters cured it.

 

[dannewhouse]

I had this before. New oil and filters cured it.

It's supposed to have been serviced, I don't fully see how that could cause it though.

 

[dannewhouse]

Surely if trying to engage another gear it woukd be making unsavoury noises, possible bearing on its way out?

I wondered if it was just rubbing real hard on the side of it or on syncro ring?

 

[Adeptandy]

Hope for your sake it’s not the problem I had

 

[daveydiesel1]

I wondered if it was just rubbing real hard on the side of it or on syncro ring?

If it was rubbing real hard youd hear it, if its rubbing the syncro itl be scrap by now. Id say its time to split her at tge bell housing and get stuck in

 

[Wellytrack]

It's supposed to have been serviced, I don't fully see how that could cause it though.

It was holding back on the Dynashift packs. Take the fuses out at the air filter and see how it rolls in direct drive compared with in A.

 

[dannewhouse]

Just said we ought to try it in d.
Both fuses out?

 

[Wellytrack]

Just said we ought to try it in d.
Both fuses out?

I can’t remember if it’s red or yellow at the moment but thankfully it’s not exactly a lethal weapon type situation.

 

[dannewhouse]

It rolls free in c and d
Holds firm in a and b.
Never did the fuses.

Any suggestions, will a service make that much difference or is it dynashift out

 

[Wellytrack]

It rolls free in c and d
Holds firm in a and b.
Never did the fuses.

Any suggestions, will a service make that much difference or is it dynashift out

Low pressure system wasn’t liking it which was caused by filters and oil. You may or may not be getting a warning light. It cured me but may not cure you but it’s a handy enough fix.

 

[dannewhouse]

Low pressure system wasn’t liking it which was caused by filters and oil. You may or may not be getting a warning light. It cured me but may not cure you but it’s a handy enough fix.

No warning light but worth a try. Will see tomorrow

 

[Wellytrack]

No warning light but worth a try. Will see tomorrow

Another thing you could try is backing up a hill or ramp, trying to see if it releases in the lower dyna’s once some throttle is applied.

 

[dannewhouse]

Sounds like a pressure test on low pressure be useful as well.

 

[dannewhouse]

After being thoroughly cleaned, examine the condition of bearing raceways and external surfaces, the amount of cage wear, the increase in internal clearance, and degradation of tolerances. Carefully check these points and examine for possible damage or other abnormalities to determine if the bearing can be reused.

For small, non-separable ball bearings, hold the bearing horizontally in one hand, and then rotate the outer ring to confirm that it turns smoothly. Separable bearings such as tapered roller bearings may be checked by individually examining their rolling elements and the outer ring raceway.

Large bearings cannot be rotated manually; however, the rolling elements, raceway surfaces, cages, and contact surface of the ribs should be carefully examined visually.
For all your bearing solutions, contact BYWB Bearing.

Very concerned that if I put one of them bearings in I'd be re visiting it very soon!
Made in China

Just paid extra for timken bearings over koyo on a different job,