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Farmall & IHC Tractors Discussion Forum

Re: Int. 424 Hydraulic problem s.

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11-29-2019 04:58:03

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Hi there are several different hydraulic configurations for a 424/2424 with a 2000 loader.
Before we can trouble shoot we require some pictures of the hydraulic setup for the loader.

Please post some pictures of the hydraulic setup at the front of the seat where the hydraulic suction filter and the 2 aluminum control valves are and also under the seat.


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11-29-2019 14:31:52

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 Re: Int. 424 Hydraulic problem s. in reply to jimb2, 11-29-2019 04:58:03  

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11-29-2019 15:32:53

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 Re: Int. 424 Hydraulic problem s. in reply to Randallc, 11-29-2019 14:31:52  
Wow, this is another variations of hydraulics that I have never seen before on an IH 424.
Could you check that the steel hydraulic pipes that connect under the seat goes to the suction(larges pipe) on the pump mounted in the front of the radiator on the tractor?
The larger rubber hose (return line) should come from the loader hydraulic control valves?

Using this method to connect a 2000 loader using a front mounted pump, the transmission and differential is used as the hydraulic reservoir for the loader.
The Industrial 2424 model has a dipstick up by the dash on top of the transmission case, yours does not appear to have the dipstick so proper hydraulic oil in the transmission is checked by the pipe plug beside the gear shift lever, the lever should be within 6" of the fill plug, use CIH Hytran or equivalent.

The 3pt/power steering normally uses the hydraulic reservoir under the seat and it is filled from the pipe plug behind the seat and proper level is when you look in the fill hole you should see like a shelf down in the reservoir and full is when the shelf is covered. If you have drained this reservoir or ran it low do to a broken hydraulic line you may have to fill the reservoir in stages, fill to proper lever, put filler plug in about 2 turns start tractor and work 3pt and power steering, stop tractor, open filler plug slowly to let out air, refill and repeat procedure until reservoir is correct level.

Is that round cylinder container mount at bottom of the dash a hydraulic filter?

I assume that ball valve has been installed because the hydraulic splitter for the 3pt and power steering stopped working?

I require some more pictures from the right front engine pump hydraulic pipes going back to ball valve to completely understand this hydraulic setup.

PS, the 424 has a very simple hydraulic system called Open Center hydraulics where the pump is constantly pumping hydraulic oil in a loop - from reservoir into the suction line (large line) thru the pump and out the high pressure line(small line) thru the hydraulic valves and back to the reservoir. When a hydraulic valve is opened then the hydraulic oil is diverted to a hydraulic cylinder.


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11-29-2019 15:57:31

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 Re: Int. 424 Hydraulic problem s. in reply to jimb2, 11-29-2019 15:32:53  
Yes, the loader is operated from the pump at the front of the radiator, and the big hose is the return hose from the loader.
Not sure what that item is below the steering wheel in front of the shiftier.
Yes PO said the ball valve was installed because the pair did not always work properly.
The small line from the tops of the res. runs down to transmission. I have not checked the transmission, it could be low, just didn't think about that. I have kept the res. under the seat full and checked. Tried to get air out.
Puzzling was the loader quit working. Separate pump, though the fluid comes from the same place. Tractor is at the farm and I will check the transmission level tomorrow.
When I run the tractor with the fill off of the res. it burped out of the fill hole, about every 5 to 10 seconds.

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11-29-2019 17:23:57

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 Re: Int. 424 Hydraulic problem s. in reply to Randallc, 11-29-2019 15:57:31  
Re burping out the 3pt reservoir, that is normal if there is air in the hydraulic lines and that is the reason I suggested to screw the filler plug in about 2 turns as that usually lets the air out but keeps the oil in.

Re front pump for loader reservoir, it appears from the outside that the hydraulic lines go into the 3pt reservoir under the seat but they actually pass thru to the transmission/diff case, see attached 2000 Loader parts page photo, item #2 is plate under the seat, item #4 is the plate that holds the pipes that reach into the transmission/diff hydraulic oil supply.
This the reason the transmission oil has to be over filled to within a few inches of the filler hole by the gear shift. On a tractor without the 2000 Loader front pump the transmission/diff oil level is checked with a pipe plug down at right foot rest.

Hope this helps, I am travelling tomorrow and part of Sunday but will answer when I can.

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11-29-2019 14:38:05

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 Re: Int. 424 Hydraulic problem s. in reply to Randallc, 11-29-2019 14:31:52  
The pressure hose with the new fitting is the one that busted. Split out of the fitting because it had the wrong fitting for the hose. Could have possibly gotten a small piece of hose into this valve, not sure what that valve is called.

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11-29-2019 05:24:56

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 Re: Int. 424 Hydraulic problem s. in reply to jimb2, 11-29-2019 04:58:03  
Will get some pictures today. Thanks

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