Case-IH 2200 Loader Hydraulic Relief Valve Shims D25844

[Bruce_H]

I had been looking for these shims and could not find any info about them, so if anyone needs these shims I did find a few OEM still in the package shims and the info below will be useful to anyone who is looking for this item>

In case any one else finds this thread looking for information about the D25844 shims, I was able to find several new ones at a dealer, here are the specifications for this shim. It is a very simple disc shim which could be easily cut from any shim stock material using a good pair of sheet metal snips.
The thickness of D25844 is .011" (0.28mm); The OD is .690" (17.53mm) there is no hole in it, just a simple disc!
The material is steel, possibly spring steel as it is very stiff

 

[JimB2]

Here in Canada, our local IH Mechanic at the time said just use a Canadian Dime (10 cent coin) as a shim behind relief valve on IH 1550, 1850 and 2250 loader control valves.

 

[Bruce_H]

Here in Canada, our local IH Mechanic at the time said just use a Canadian Dime (10 cent coin) as a shim behind relief valve on IH 1550, 1850 and 2250 loader control valves.

Did you ever have to shim your relief valve and if so what was the pressure down to at the time, my 2200 loader struggles to lift about half a bucket load of gravel, not sure of the size of my bucket but it is not large!

 

[JimB2]

Back in the late 1960s early in 1970s, Dad had an IH 434 with IH 1501 loader and neighbor had the same tractor loader setup. Neighbor had a tandem log truck but no log loader on the truck but used his 434 and loader to load logs on the log truck. One day Dad had a load of oak and maple logs and neighbor said we will just use Dad's 434 and loader instead of bringing his tractor to the woodlot. Well Dad's 434 would not lift some of the logs, neighbor said "you got a dime in your pocket", Dad said yes and the neighbor showed Dad how to put the dime in the relief valve like the IH Mechanic had done to the neighbor's 434.
Now Dad's 434 lifted the logs onto the truck. Never measured the pressure, the limiting factor is on a 2WD tractor with loader is too much weight on loader lifts the weight off the rear wheels and there is a lack of traction to move the tractor. You must be very careful on slopes or going down hill if you loose traction on the rear tires, keep the bucket close to the ground and drop the bucket on the ground and that will stop the skidding down a slope. Always THINK SAFETY first when using a loader on a tractor.

 

[Bruce_H]

My rear wheels are loaded with liquid calcium, so it is not too much of a problem, I also have a weight for the three point hitch, that adds about 800lbs (my best guess) more onto the rear end. I am going to measure my pressure in early Aug when I go to the property where the tractor is located (7 hr drive from where I live), and add shims as required!

 

[JimB2]

Good to hear that you have plenty of weight on your rears. Dad also had calcium loaded tires and if he was doing heavy lifting with the loader he would put a 3PT cultivator on the 3PT. My brother has a CIH 3230 with CIH 2250 Quick-Attach loader, rears loaded and he usually used a 3PT blade on the 3PT with a rear wheel weight from Farmall SC chained on the blade. About 3 years ago I was helping him load logs on to a wagon and one of the logs for a customer was a pine 20Ft long greater than 26" butt and about 20" top end and the 2250 loader would lift it but he couldn't back away from the pile until I sat on the tail end of the 3PT blade. Stay safe.