2010W Cessna Pump, center section needed

jd1010b · Post by **jd1010b** » Thu May 16, 2013 12:10 pm

Hello,
I have a 2010w with backhoe and I am looking for the center section for my cessna hydraulic pump as it has a crack in it. It is a 2-bolt model, shaft / spline driven. It looks like it has 24500-510c stamped on the shaft side of the pump. The center section has 24509-269c ? stamped on it. Thanks in advance!

jd1010b · Post by **jd1010b** » Sun May 19, 2013 2:34 pm

I was able to jb weld the housing on the hydraulic pump, it leaks, but only a drip here and there. I filled the hydraulic fluid back up to the top of the little window about half way up the hydraulic reservoir. Now, none of the hydraulics work and I can see little bubbles in the window in the hydraulic reservoir. Basically the outrigger on the drivers / left side goes up and down but it is really slow and has little to no down-pressure, the other hydraulic cylinders surge like they want to move but that's all. I am guessing maybe a clogged filter somewhere? Or possible bad fluid or air in the lines somewhere... Where are the filters located and is there a way to bleed the hydraulics on my 2010? Thanks in advance!

Tigerhaze · Post by **Tigerhaze** » Mon May 20, 2013 9:18 am

I'm not sure if you are talking about a 2010 wheel tractor or a crawler loader- if a wheel tractor then the info I mention may not be relevant.

If crawler loader, the loader hydraulics are bled by raising and lowering the boom and curling the bucket several times until the air works its way out. The filter fr the loader hydraulics on a crawler loader is within the u-shaped hande on the hydraulic reservoir to your left when sitting on the crawler- if you unbolt the base plate for that handle the two part filter will come out with it. There are a number of pieces and springs for the small and large filter components so pay attention on how they are assembled.

The filter shouldn't be the primary problem as my understanding is that they are designed to bypass if clogged. You may have some lines that have disintegrated internally and are restricting flow or other type of restriction.

As for Cessna pumps, my understanding is that individual parts are not available but that they are still available as a complete unit. other would know better than me since I haven't had that issue yet.

jd1010b · Post by **jd1010b** » Mon May 20, 2013 10:10 am

Ok cool, thanks. Ill try to look for the filter in the reservoir. Its actually a wheeled tractor. The hydraulics worked fine before the housing cracked. The fluid does look dark.

jtrichard · Post by **jtrichard** » Mon May 20, 2013 10:39 am

The filter shouldn't be the primary problem as my understanding is that they are designed to bypass if clogged

..... TIGERHAZE only the return filter has a bypass the suction is metal screen and no bypass if it plugs then no flow

jd1010b · Post by **jd1010b** » Tue May 21, 2013 6:32 am

I cleaned both filters in the reservoir, it did not seem to make a difference. Are there any other filters? The hydraulic fluid is dark colored. I am just guessing, but the fluid might even have some water in it, would a fluid change help and whats the procedure for changing out the fluids. How many gallons will i need. The left outrigger for the backhoe goes up and down really slow and has little to no down force. The others move barely if at all but thats it Thanks!

jtrichard · Post by **jtrichard** » Tue May 21, 2013 11:15 am

first if there is water in your fluid it would be milky white .....second you either have put something on the pump together wrong or you got some crap in the pressure relief valve .... for what ever reason it looks like you have no pressure

jd1010b · Post by **jd1010b** » Tue May 21, 2013 12:02 pm

The fluid looks more dark than anything. I reassembled the pump 3 - 4 times just to make sure. Where is the pressure relief valve located? I assume it is located outside the pump somewhere as the pump only has an inlet and an outlet?

jtrichard · Post by **jtrichard** » Tue May 21, 2013 6:26 pm

there should be one on the loader valve and one on the hoe valve.....did you put all new seals in the pump?

jd1010b · Post by **jd1010b** » Tue May 21, 2013 6:48 pm

I actually made gaskets as the ones I got from deere were the wrong size. Where on the loader and backhoe valves should I look? What do the relief valves look like? Someone mentioned something about banjo nuts, on the loader valve there are 2 banjo nuts on the bottom one bigger than the other one, and on the backhoe control valve there are 6 banjo nuts all the same size under each lever.

jtrichard · Post by **jtrichard** » Tue May 21, 2013 7:08 pm

the relief valves should be in the end caps of the valve stack

jd1010b · Post by **jd1010b** » Wed May 22, 2013 6:18 am

I am still a little bit confused. What do the relief valves look like and how do I go about resetting them? I only found one quick disconnect to the backhoe, on the return line to the hydraulic reservoir. I disconnected it, and the front bucket still does not work. Thanks!

jd1010b · Post by **jd1010b** » Mon May 27, 2013 4:00 pm

I took out a big maybe 1 1/8 inch inch bolt on the front of the left hand side of the front hydraulic controls where on the back has the intake and output lines bolted to it. I pulled out the bolt its ~ 3 inches long, and is hollow it basically has a spring inside secured by a snapring on the end to hold everything together.
Stamped on the head of the bolt is the following
32037 QA
2500 PSI
J041215
Is this the pressure relief valve by any chance? How do i reset
it, is it easy to take apart / put back together?

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2010W Cessna Pump, center section needed

2010W Cessna Pump, center section needed

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