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Hydraulic Pump Problem?

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Mike in NC
10+ Years
10+ Years
Posts: 110
Joined: Mon Nov 21, 2005 10:09 pm
Zip Code: 27040
Tractors Owned: '48 Farmall Cub, '52 John Deere M, '07 John Deere 990, '08 John Deere Gator TX, '12 John Deere 5055D
Location: North Carolina

Hydraulic Pump Problem?

Postby Mike in NC » Sat Sep 23, 2006 7:30 pm

Hello to all. My old Cub is having hydraulic problems. There is no movement of the Rock Shafts and when I check the pressure in the system I get zero pressure regardless of where the lever is positioned. I did check fluid level and its OK. I am assuming my pump is shot, but would like an expert opinion. Thanks!!
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John *.?-!.* cub owner
Cub Pro
Cub Pro
Posts: 23701
Joined: Sun Feb 02, 2003 2:09 pm
Zip Code: 63664
Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
Location: Mo, Potosi

Postby John *.?-!.* cub owner » Sat Sep 23, 2006 7:42 pm

About the only way for a pump to stop working suddenly is for the gear to come off the shaft, whcih can only happen if the nut comes off. Take the top allen plug out of the block where the lines attach to the TC block and see if there is fluid comign out hen tractor is running. if so the pump is running. A more likely cause is a pressure regualtor or saftey valve sticking inside the TC unit. Kits are still available form IH, but you will need the casting number from the unit to determine which one. If you undertake the repair yourself, keep eveything Clean, clean, clean.
If you are not part of the solution,
you are part of the problem!!!
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User avatar
Mike in NC
10+ Years
10+ Years
Posts: 110
Joined: Mon Nov 21, 2005 10:09 pm
Zip Code: 27040
Tractors Owned: '48 Farmall Cub, '52 John Deere M, '07 John Deere 990, '08 John Deere Gator TX, '12 John Deere 5055D
Location: North Carolina

Postby Mike in NC » Sat Sep 23, 2006 8:31 pm

Once again, thanks John. I tried taking out the allen screw and fluid comes out whether its running or not. I also used a pressure washer gauge as you suggested and I got no readings. I guess I'm going to have to pull the whole thing out.
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User avatar
John *.?-!.* cub owner
Cub Pro
Cub Pro
Posts: 23701
Joined: Sun Feb 02, 2003 2:09 pm
Zip Code: 63664
Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
Location: Mo, Potosi

Postby John *.?-!.* cub owner » Sat Sep 23, 2006 9:11 pm

here is a link to the service manual.
http://www.cleancomputes.com/Cub/Blue%2 ... index.html
If you are not part of the solution,
you are part of the problem!!!
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