D12 series 2 - Hyd.

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   Hope I can make this clear. Tractor is D12 series 2 - Ser.# 3159 . Has indp. PTO , live hyd. pump with two out ports . One is lift and back one controls Power Booster . The original control valve has been replaced with single two way (Cross brand ) valve. The hyd. lines are in shambles , the way I recieved it. Want to clean up the mess . NOW- can the PB be usable with this set-up ? Looking at manual I dont see how without factory 3 port control valve. If there is a way, please inform me. If that is to crazy , what do I do with the PB pressure line . Can it be plugged ? It produces pressure full time . Got the bright idea to take out idler gear but it wont pick up prime. 
This subject had been brought up before but I did not see remedy . Any body know what can be done ? Thanks  

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Burl Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Access Joined: 13 Sep 2014 Location: Aurora Mo. Points: 232	Post Options Post Reply Quote Burl Report Post Thanks(0) Quote Reply Topic: D12 series 2 - Hyd. Posted: 16 Oct 2019 at 6:03pm
	Hope I can make this clear. Tractor is D12 series 2 - Ser.# 3159 . Has indp. PTO , live hyd. pump with two out ports . One is lift and back one controls Power Booster . The original control valve has been replaced with single two way (Cross brand ) valve. The hyd. lines are in shambles , the way I recieved it. Want to clean up the mess . NOW- can the PB be usable with this set-up ? Looking at manual I dont see how without factory 3 port control valve. If there is a way, please inform me. If that is to crazy , what do I do with the PB pressure line . Can it be plugged ? It produces pressure full time . Got the bright idea to take out idler gear but it wont pick up prime. This subject had been brought up before but I did not see remedy . Any body know what can be done ? Thanks

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Charlie175 Members Profile Send Private Message Find Members Posts Add to Buddy List Orange Level Joined: 11 Sep 2009 Location: Shenandoah, VA Points: 6351	Post Options Post Reply Quote Charlie175 Report Post Thanks(0) Quote Reply Posted: 17 Oct 2019 at 5:40am
	Traction Booster I think you mean? Do you need this feature? Do you still have the control rods that operate the traction booster valve? The factory control valves tend to leak over time and once pitted on the inside, won't seal. People replace it with an off the shelf unit to maintain 3 point lift use but lose the TB feature.
	Charlie '48 B, '51 CA, '56 WD45 '61 D17, '63 D12, '65 D10 , '68 One-Ninety XTD

Burl Members Profile Send Private Message Find Members Posts Add to Buddy List Silver Level Access Joined: 13 Sep 2014 Location: Aurora Mo. Points: 232	Post Options Post Reply Quote Burl Report Post Thanks(0) Quote Reply Posted: 17 Oct 2019 at 7:37am
	Yes , TB, not PB .Dont know where I got that. I am sure the old valves went bad and were replaced . I removed all the TB parts. Only thing to delete is pressure line from pump . Prev. owner ran TB line to front port on lift valve which really just pluged it off. I quess that this is an OPEN hyd. system. I think this is bad. How do I dump this pressure? Thanks