Cub hydraulics problem

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Larrydriskell
Posts: 6
Joined: Sun Apr 04, 2021 11:24 am
Zip Code: 39074

Cub hydraulics problem

Postby Larrydriskell » Mon Apr 05, 2021 8:25 pm

I have a ‘49 cub that I’m working on getting back together. Most all painted except for the hood and tank. New rings and gaskets and runs like a top but can’t get the lift to work. It was working fine before I drained the fluid and broke the tractor in half. Put it back together and fill with new oil. And it won’t lift. I’ve tried several suggestions from other forums but nothing. I have it apart again now waiting on my oil seal retainer and seal from Tim. Was wondering if there is anything I can do while I have it apart. Any help would be greatly appreciated. Thanks Larry

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MiCarl
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Zip Code: 48154
Tractors Owned: 1944 Farmall H
1948 Farmall Cub
1994 Speedex 1631
Circle of Safety: Y
Location: Livonia, MI

Re: Cub hydraulics problem

Postby MiCarl » Mon Apr 05, 2021 8:55 pm

When mine did that I did the following with the engine shut off:

Loosened the bolts that hold the hydraulic lines to the pump. Pushed the edge of a plastic paint scraper between the flange on the lines and the pump to create a small gap, make sure you don't push in far enough to damage the o-rings.

Drank coffee until fluid began to drip. Remove paint scraper, tighten bolts. Fired up and had working hydraulics right away. Cycled the hydraulics 10 times to clear any remaining air.
1944 Farmall H
1948 Farmall Cub
1994 Speedex 1631

tst
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Re: Cub hydraulics problem

Postby tst » Mon Apr 05, 2021 10:08 pm

did you have the pump apart ?

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Mike in Louisiana
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Re: Cub hydraulics problem

Postby Mike in Louisiana » Tue Apr 06, 2021 10:11 am

Welcome, to the forum.
1975 cub (LouAnn) serial # 245946, 1941 John Deere Model H

Good judgment comes from experience,
and a lot of that comes from bad judgment. Will Rogers

Larrydriskell
Posts: 6
Joined: Sun Apr 04, 2021 11:24 am
Zip Code: 39074

Re: Cub hydraulics problem

Postby Larrydriskell » Tue Apr 06, 2021 9:12 pm

No I have not had the pump apart, just disconnected the lines and drained fluid to baeak the tractor apart!

Bamacub
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Re: Cub hydraulics problem

Postby Bamacub » Thu Apr 08, 2021 3:17 pm

You most likely have air in the system. Take the filler bolt out crank the tractor and cycle the system it should get the air out. You have refill the fluid level I hope.

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Glen
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Tractors Owned: 1956 Farmall Cub with Fast Hitch, F-11 plow, Disc, Cultivator, Cub-22 mower
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Location: Wa.

Re: Cub hydraulics problem

Postby Glen » Thu Apr 08, 2021 7:12 pm

Hi,
I posted info for filling and removing the air from the Touch Control, and an owner's manual for the Cub, at your other post that you made on 4/6. :)


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