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-   -   3 Point NO lifty lifty Case David brown 885 (https://www.shopfloortalk.com/forums/showthread.php?t=50228)

MetalWolf 11-26-2018 11:45 PM

3 Point NO lifty lifty Case David brown 885
 
Ok so this not my first Rodeo with these things an in my opinion one of the more complicated hydraulic systems I've had the no so pleasurable pleasure to work on but had one dropped off here early this morning.... good thig it is manual trans and not hydrostatic hydrostatics suck to work on any way shape or brand :rolleyes: ;)

Any way I have a very good idea what's going on with it... But it could be more serious than the normal issues they usually have...

But going to go through it all the way as it has some debris in the system from hooking up the auxiliary lines that laid I the dirt not sure why some one would hook up lines with out cleaning the connections first but at any rate the loader was working and 3 point was working guy took of the loader.

The three point was working then started getting slower an slower and now will not lifty at all.... fluid is clean and clear no water recent filters etc.

So for those of your who have had these same issues where you know it is "NOT" the pump... what would you look at/for first ? The relief valve ;)

SmokinDodge 11-27-2018 12:04 AM

As you sit on the tractor, on the right side about where your hand would fall there is a block with two shuttles that gummed with debris and cause that exact scenario on the three point system.

MetalWolf 11-27-2018 12:15 AM

Quote:

Originally Posted by SmokinDodge (Post 725423)
As you sit on the tractor, on the right side about where your hand would fall there is a block with two shuttles that gummed with debris and cause that exact scenario on the three point system.

Yep The relief valves which is what I suspect my self one has a small type of washer inside with a screen that clogs up or sticks from rust if it has been run with water in system and then sits for awhile
but being it was hooked up to lines that had dirt in them I may have to go further in to clear it all out I mean I could prolly clean the relief valves and it will most likely work but I suspect it will just do it again till all the dirt is flushed out of the system or doo you think it is more likely the filters will catch it before the relief valves plug and stick again so what's your opinion on what you would do to clear it or just let filters do it and chance it clogging or sticking again ?

Or should I say the control vale shuttle relief valves

Walker 11-27-2018 08:21 AM

Lift piston seals is my guess. Is there a handhole on the side you can remove to see where the fluid is dripping from?

MetalWolf 11-27-2018 09:22 AM

Quote:

Originally Posted by Walker (Post 725440)
Lift piston seals is my guess. Is there a handhole on the side you can remove to see where the fluid is dripping from?

Ill have to look to be sure but I do believe there is a cover that can be removed to see if the fluid is massively flowing which would indicate a bad seal in the lift

Dr Dean 11-27-2018 01:46 PM

Piston seals usually cause hiccups for a long time before anyone addresses it. I'm betting on draft control linkage inside the rear end fell apart.

MetalWolf 11-29-2018 04:00 PM

UP Date
 
4 Attachment(s)
Ok so It is not the shuttle valves..... Something fell apart in the selectmatic draft control
and not sure where it goes exactly need to look at the manual and see as soon as I took off the inspection cover in the rear and cleaned out all the crap grease this was laying in the bottom looks to be a cam of some sort
its the part laying on top
it turns out its the ram cam the bolts sheared off so not something simple becomes something of a PITA

Attachment 148303Attachment 148304Attachment 148305Attachment 148306

MetalWolf 11-29-2018 07:16 PM

Un believable of all the crap that has to come apart just to fix this small problem because someone over tightened two tiny stud nuts
and now some of the crap it down in the housing and could fall in to the teeth of the bull gear and cause bigger problems....

MetalWolf 12-05-2018 09:15 PM

Well an expensive day today....
went an had the lift bar shaft that had the broken bolts that held the cam on that range the settle valves on the selectamatic hydrauis system for the 3 point to burn out holes and re-tap don't want to make anyone shit their self so I wont say but I could of bought a set of tires with it.

but now will be getting it back together and out soon well depends on when I feel like climbing out of bed ;)

any way I could not find 1/4 20 studs std. threads so I got the std. thread on one side 1/4 20 and machine threads on other side figure it should still work and using metal locking washer nuts instead of nut an lock washer

Ironman 12-06-2018 06:30 AM

[QUOTE=MetalWolf;725608
and now some of the crap it down in the housing and could fall in to the teeth of the bull gear and cause bigger problems....[/QUOTE]

Get a strong neo magnet or two and let it stick to the side of the case below the oil level. That will take the crap out of circulation.


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