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  #11  
Old 11-21-2011, 09:01 PM
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CHWNY CHWNY is offline
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OK. Does this sound correct? The charge pressure is higher than the lift pressure. On a ported pump w/ports capped the relief valve on top acts as the charge pump relief. when you add an implement lift you change the location of the charge pump valve to the side. ANYONE?
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  #12  
Old 11-21-2011, 09:29 PM
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I found the flow circuit in the pump. Thanks R Bedell!

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Cub Cadet 147 2050041u340160
42" Mower Deck, Snow Thrower, Tire Chains and Weights, Rotary Tiller 1, Brinly Sleeve Hitch, Brinly 10" plow, Johnny Bucket Jr.,42" QA NF Dozer Blade.
Cub Cadet 1872 SGT
60" CCC deck.
Parts 129 future plans =ported pump for 147, cast iron rear for 1872,129 frame and steering axle= ?wagon?
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  #13  
Old 11-21-2011, 10:16 PM
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thats just confusing. whats MF CP and PV? i hate hydros so far. lol
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  #14  
Old 11-22-2011, 06:41 AM
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CP = charge pump
PV = input valve block assembly
MF = output valve block assembly
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  #15  
Old 11-22-2011, 07:33 AM
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Well that flow chart answers my question on looping the ports...BUT!!!!
Sorry this hydro stuff is foreign to me, I need to study!!
Thanks
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  #16  
Old 11-22-2011, 07:40 AM
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Quote:
Originally Posted by LarryW View Post
I found the flow circuit in the pump. Thanks R Bedell!


I have been staring at that flow chart.

Is that a typo of the implement and charge relief valves labels being swapped?? Maybe I have been staring too long.

Also, the implement relief can not be higher pressure than the charge, can it?

All the oil would go to the lowest relief valve in a parallel circuit!!??

Maybe when there is no implement circuit, the charge can be 200psi, when the implement circuit is added the pressures for both have to be increased.

I do not know for sure, but, I would think you can not get 600psi out of a 200psi circuit.

Kind of like wishing you could get 600psi at the garden hose of your house to wash your Cub Cadet when the rest of the house is 50psi.

I'm lost, I think is will go wash my Cub Cadet!!
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  #17  
Old 11-22-2011, 08:27 AM
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I'm with CADplans
I didn't think the pressure could be like in the chart
That's why you need to swap out the valve springs when adding an implement lift, Right?
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  #18  
Old 11-22-2011, 08:13 PM
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You know what? Im just as confused. How can it loop around like that in the relief valves? I see a lot that dont make sense but maybe im missing something. Im having issues with the colors too, Im partially colorblind and I can see a difference sometimes but staring at it just starts to blend in and my eyes hurt, lol.
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To many ideas, not enough time.....
Cub Cadet 147 2050041u340160
42" Mower Deck, Snow Thrower, Tire Chains and Weights, Rotary Tiller 1, Brinly Sleeve Hitch, Brinly 10" plow, Johnny Bucket Jr.,42" QA NF Dozer Blade.
Cub Cadet 1872 SGT
60" CCC deck.
Parts 129 future plans =ported pump for 147, cast iron rear for 1872,129 frame and steering axle= ?wagon?
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  #19  
Old 11-22-2011, 10:24 PM
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Quote:
Originally Posted by CADplans View Post
I have been staring at that flow chart.

Is that a typo of the implement and charge relief valves labels being swapped??
Also page 9 of the 169 hydraulics add on setup pdf http://ccmanuals.info/pdf/169%20Hydr...On%20Setup.pdf the charge pump is on the side and implement is on the top. My ported 129 that came with manual lift (so the ports are blocked off) has the spring and cone in the relief labeled implement and nothing at all in the relief labeled charge? So I dont why the implement would have the spring and cone if there was never an implement beign used. I guess less time in front of the computer searching and more time out tearing it apart would probably help all this, lol.
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To many ideas, not enough time.....
Cub Cadet 147 2050041u340160
42" Mower Deck, Snow Thrower, Tire Chains and Weights, Rotary Tiller 1, Brinly Sleeve Hitch, Brinly 10" plow, Johnny Bucket Jr.,42" QA NF Dozer Blade.
Cub Cadet 1872 SGT
60" CCC deck.
Parts 129 future plans =ported pump for 147, cast iron rear for 1872,129 frame and steering axle= ?wagon?
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