Problem with new 2072

BThein · #1 12-26-2014, 05:01 PM

I got some time to tinker with the new to me 2072 today.It came to me with no drive shaft and some stuff banged up as I said in another post it did not seem too serious. I got together the parts to replace the shaft and some hydro linkage and got it all hooked up.Well engine started and seems good that was a load off my mind but the hydro does not seem to build pressure.I ran it at a good speed and worked the shifter with the wheels off the ground but no movement.So far checked the fluid made sure it was full ,changed the filter with a new Cub one and all I get is the power steering seems to work but very hard and sluggish.Any ideas before I pull this rear out and switch it with the spare I have?

Thanks , Bob

Shrewcub · #2 12-26-2014, 05:25 PM

If the shaft was out when you bought it, makes me wonder if someone installed the charge pump upside down? If it is that could be the problem, but steering shouldn't work either.?? Does the lift do anything?

BThein · #3 12-26-2014, 05:46 PM

Thanks for the reply,I get nothing from the lift and nothing as far as movement forward or reverse .The steering does work but not right,very hard and sluggish not like I know it should.Can the charge pump be flipped with out removing the rear from the tractor?

Bob

Shrewcub · #4 12-26-2014, 06:02 PM

Yes, you just need to remove the driveshaft. There are some posts on here somewhere that tell you which way it goes. I can't seem to find them or remember which way it goes. Does it steer any easier at all with the engine running? It will steer(very stiff) with out the engine running for a while just from the fluid in the lines.

darkminion_17 · #5 12-26-2014, 07:09 PM

Maybe there is water in the system and it froze up.Is your garage heated?

FrankF3 · #6 12-26-2014, 07:23 PM

Quote:

Originally Posted by Shrewcub

If the shaft was out when you bought it, makes me wonder if someone installed the charge pump upside down? If it is that could be the problem, but steering shouldn't work either.?? Does the lift do anything?

Before disturbing the charge pump, take a really close look at it and try to see if the dirt/dust/rust on it has been disturbed or taken apart. If you see no "wrench marks" on the bolts, then it could be something else unless the wrenching on the charge pump was done a long time ago.

With the tunnel cover off, is the pump turning at engine speed? Does it have a driveline disconnect clutch?

Shrewcub · #7 12-26-2014, 07:48 PM

Quote:

Originally Posted by FrankF3

Before disturbing the charge pump, take a really close look at it and try to see if the dirt/dust/rust on it has been disturbed or taken apart. If you see no "wrench marks" on the bolts, then it could be something else unless the wrenching on the charge pump was done a long time ago.

With the tunnel cover off, is the pump turning at engine speed? Does it have a driveline disconnect clutch?

Good point Frank, I should have said that !

BThein · #8 12-26-2014, 08:03 PM

Ok ,I just went and looked at it again then at a diagram on Parts Tree .The charge pump does look very clean on the outside like it may have been out.So it looks like just two bolts on the front into the case ,do I just remove it and turn it 180 ?I think it's worth a try I do have a spare super pump also that is not in a tractor but the splines on the input shaft are not great would it better to just change it out and how do you know it it's upside down.Sorry for all the questions I just have never had one apart they are so tough even the most rat faced ones seem to work just fine with new fluid and filters .Oh and Lew ,I do have heat so not thinking it is frozen but thanks for the heads up .I added a pic I think I am looking at the right thing .

Bob

Shrewcub · #9 12-26-2014, 08:18 PM

Quote:

Originally Posted by BThein

Ok ,I just went and looked at it again then at a diagram on Parts Tree .The charge pump does look very clean on the outside like it may have been out.So it looks like just two bolts on the front into the case ,do I just remove it and turn it 180 ?I think it's worth a try I do have a spare super pump also that is not in a tractor but the splines on the input shaft are not great would it better to just change it out and how do you know it it's upside down.Sorry for all the questions I just have never had one apart they are so tough even the most rat faced ones seem to work just fine with new fluid and filters .Oh and Lew ,I do have heat so not thinking it is frozen but thanks for the heads up .I added a pic I think I am looking at the right thing .

Bob

It does look cleaner. I bet the PO put a seal in it and put it on 180 out. And, yes take the 2 bolt out and spin it 180. There is a little tab on one side of the pump you can look at and tell if it is on correctly. I just can't remember which side it is on tho. If no one else chimes in tonight, I will pull my tunnel cover for you in the morning and look.

BThein · #10 12-26-2014, 08:33 PM

Shrewcub,thanks for the offer to check yours for me I did some more searching on here found a post by Sam Mac. His post shows a flat spot on the charge pump cover that must be turned one way and I just looked mine is wrong.I hope to get a chance to work on it some more tomorrow and will report in .Once again thanks to all for the help and advice .
Bob