Steering orbital rebuild - what am I missing?

[huskytike]

Hi,

I just put new seals in a Danfoss open center, 4 port (2 sided ram) orbital valve for my Long 310c. Seems like a simple enough mechanism, but for some reason when I went to reassemble the Cardan shaft seems to be sitting a little proud and is interfering with the bottom end plate when I go to tighten everything up.

Here's the exploded diagram:
https://www.midweststeering.com/wp-content/uploads/OSPB-C-SVC-MAN-2014.pdf

Mine has a little bearing that sits at the bottom end of the Cardan, which it rides on. That bearing is sitting ~1.5mm above the plane of the gear wheel - worried it will bind up when I torque the bolts. I can not see where I could possibly go wrong in the assembly to create this interference.

Any thoughts or guidance are much appreciated.

Thanks

 

[MossRoad]

I don't see the little bearing you're mentioning in the exploded diagram. Does it have a callout number?

 

[huskytike]

Yeah, it appears as though they got rid of it in their more recent design and this is the only diagram I can find. Here are some pictures of my setup:

 

[oldnslo]

Page 20 talks about installing thrust bearings. Is the bearing you are referring too?

 

[Farmerford]

Are you sure that ball is not the check ball that goes beneath the threaded bushing in the plate below the outer gear?

 

[huskytike]

Are you sure that ball is not the check ball that goes beneath the threaded bushing in the plate below the outer gear?

Well, I went out and pulled that threaded bushing (I had not bothered previously) and sure enough - no bearing! I can't understand how it would have escaped unless someone had misplaced it during a previous rebuild.

I should have looked before I posted. Thanks for pointing out what should have been an obvious place to start. Everything buttoned up nicely and hopefully I've got it timed properly. Won't know for a little while because I have a lot more cleaning to do before I can put everything back together and test it out.


Thanks again!