Massey Ferguson 3635 Project

[masseybreaker]

is it in 2wd or 4 when you get the problem ?

 

[SuperTwo]

I've recorded a video of the problem.

 

[masseybreaker]

this is where the fun begins it could be loosing oil pressure through the pto pack try the same sequence as in the video while turning the steering wheel see if its the same or only the pto does it

 

[SuperTwo]

The problem only arises after getting up to working temperature. Steering is ok without pto engaged and marginally stiffer with the pto engaged when in A or B Dynashift.
Is this a combination of a few small leaks? Am I correct in the thinking that steering will always get priority flow? When in D Dynashift it's purely mechanical drive and that's why pressure isn't dropping when the PTO is engaged?

 

[masseybreaker]

no easy answer it could just be your pump is tired or you are loosing pressure somewhere and thats the problem where !! if i was you i would fit a new pump

 

[SuperTwo]

no easy answer it could just be your pump is tired or you are loosing pressure somewhere and thats the problem where !! if i was you i would fit a new pump

If I do a pressure test and and try all the different functions on the low pressure circuit will that tell me where the problem is or do I need to do a flow test?

 

[masseybreaker]

do a pressure test you dont need a flow test only the orbitol unit uses oil

 

[ste stuart]

I’m thinking of getting rid on my 3655 if anyone’s interested, I seem to be spending more and more time on a tractor so I’d like something a bit quieter preferably with suspension

 

[ste stuart]

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[SuperTwo]

Any tips on swapping the 540 and 1000 speed pto shafts? The rollers on the inside bearing are dropping down which makes it very difficult to push the shafts all the way in.

 

[wdah/him]

Replace the bearing.

 

[SuperTwo]

Replace the bearing.

Why is the bearing worn if the rollers are dropping down?

 

[SuperTwo]

Working on a 3645 at the moment that's stuck in 4wd. The button is working correctly, brakes lights are fine and the speed sensor is working too but I'm still not getting power to the solenoid when the tractor starts rolling. Is there anything else to check or do I have a fault in the autotronic box?

 

[masseybreaker]

do you mean the diff speed sensor is working ? also how fast are you moving ? from memory it needs to go 5mph before it will go into 2wd

 

[SuperTwo]

Yes is meant the diff sensor it's working ok as it puts the 4wd light on when braking when moving quickly.
I will try testing the power when going over 5 mph and report back.

 

[Ehope]

Hi does anyone know where to get the original interior fabric so I can reupholster my 3635 ? Thank you