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Help with IH 5088 with Sprayer


todd.crow
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Danny,

Please review this schematic and note that the outside lever has a smaller splined hole which in turn drives the inside valve. The way they arranged the linkage on the 88 series reversed lever location from valve location. 

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Ok so I have the same question Todd does. I’m running similar sprayer on a 5088 and 5488. Outside black lever runs  sprayer pump fine and is returned to the right spot. I have flow turned down so it matches the pressure I need. 
 

Now..our question is does keeping another outlet pushed forward/back all the time to supply power to the boom folding box hurt the pump. Ideally I would have constant power to the boom so I could use the joystick on ends and terraces. The block is set up for closed center.

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2 hours ago, 66 Series Farmer said:

Ok so I have the same question Todd does. I’m running similar sprayer on a 5088 and 5488. Outside black lever runs  sprayer pump fine and is returned to the right spot. I have flow turned down so it matches the pressure I need. 
 

Now..our question is does keeping another outlet pushed forward/back all the time to supply power to the boom folding box hurt the pump. Ideally I would have constant power to the boom so I could use the joystick on ends and terraces. The block is set up for closed center.

These systems are not load sensing, so that second lever forward does make heat in the system, as it constantly sending even when not using the booms.  Running a loop bybass kit on the boom remote will help with this.  I am running the same setup with my 5488 and a Fast BW with hydraulics sprayer pump.

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1 hour ago, twp460 said:

These systems are not load sensing, so that second lever forward does make heat in the system, as it constantly sending even when not using the booms.  Running a loop bybass kit on the boom remote will help with this.  I am running the same setup with my 5488 and a Fast BW with hydraulics sprayer pump.

The 88s are load sensing. IH called it PFC but it is the same thing. 

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5 hours ago, 66 Series Farmer said:

Ok so I have the same question Todd does. I’m running similar sprayer on a 5088 and 5488. Outside black lever runs  sprayer pump fine and is returned to the right spot. I have flow turned down so it matches the pressure I need. 
 

Now..our question is does keeping another outlet pushed forward/back all the time to supply power to the boom folding box hurt the pump. Ideally I would have constant power to the boom so I could use the joystick on ends and terraces. The block is set up for closed center.

Set your block to open center. Then the oil can circulate and not be dead headed.

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On 6/19/2021 at 3:50 PM, ZG6E said:

The 88s are load sensing. IH called it PFC but it is the same thing. 

Press compensating and load sensing closed center systems are different.  It may of been IH version of load sensing, but different from today's.  See the Fast manual below as it has one sets thing up differently for pressure compensation or load sensing.

Screenshot_20210620-164225.png

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On 6/20/2021 at 2:46 PM, twp460 said:

Press compensating and load sensing closed center systems are different.  It may of been IH version of load sensing, but different from today's.  See the Fast manual below as it has one sets thing up differently for pressure compensation or load sensing.

Screenshot_20210620-164225.png

Looks to me like whatever literature you posted is referring to an older deere hydraulic system when it is referencing pressure compensated. (30-60 series) On an 88 you would want to use the flow controls to control pump speed- not a restrictor orifice. 
 

88 series definitely use a signal/load sense line. 

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  • 9 months later...
On 6/17/2021 at 4:40 PM, todd.crow said:

I have my new to me 5088 hooked to my new to me Fast 9420 sprayer and have a couple hydraulic questions. The sprayer has a hydraulic driven sprayer pump and a electric solenoid hydraulic control block that is used to control the boom functions.

I want to make sure I hook things up correctly. I believe that I have to hook the sprayer pump up to the outermost hydraulic lever in the cab, and then hook the return hose to the case single return line on the back of the tractor.

My question really pertains to the hydraulic block that controls the booms. It is setup for a closed center system now. The only other option is to set it as a open center valve. My guess is I need to connect this valve to the other control valve on the tractor and somehow lock the hydraulics on to that valve.

How will the pump react to this setup? With this is my first experience with a PFC type hydraulic system and want to make sure that I have it setup correctly and not burn up the tractor hydraulic pump.

Thanks

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Todd, not sure if you got the answers you needed but I have finally got more information on my question. I called Demco directly and Jerry was very helpful. Even though my boom hydraulic valve body is setup for closed center, I can make an adjustment on the last solenoid which is the one in the far right side of my picture. It has a pin in it and has the turn knob you see to keep it tightened down. He instructed me to loosen It and pull this pin out to make the value open center. From everything I have read this should protect the pump and allow continuous flow (open center). Jerry did say that at least for Demco they only want 30% of flow to the boom control box. He highly encouraged me to turn flow way down. 

68213B48-86B4-409F-B125-BDFC94180B36.jpeg

F4E4950F-089D-4650-B01F-CAD1130EA3ED.jpeg

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On 6/17/2021 at 4:40 PM, todd.crow said:

I have my new to me 5088 hooked to my new to me Fast 9420 sprayer and have a couple hydraulic questions. The sprayer has a hydraulic driven sprayer pump and a electric solenoid hydraulic control block that is used to control the boom functions.

I want to make sure I hook things up correctly. I believe that I have to hook the sprayer pump up to the outermost hydraulic lever in the cab, and then hook the return hose to the case single return line on the back of the tractor.

My question really pertains to the hydraulic block that controls the booms. It is setup for a closed center system now. The only other option is to set it as a open center valve. My guess is I need to connect this valve to the other control valve on the tractor and somehow lock the hydraulics on to that valve.

How will the pump react to this setup? With this is my first experience with a PFC type hydraulic system and want to make sure that I have it setup correctly and not burn up the tractor hydraulic pump.

Thanks

-8860702306533114497.jpg

4726341258857689924.jpgTodd, does the valve spool on the far left hand side (one turned sideways) of your valve block have a pin in it similar to mine? I’m guessing the two big hoses right next to it is your power and return lines to the tractor. 

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