Cub rock Shaft

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rterry
10+ Years
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Joined: Mon Aug 07, 2006 6:07 pm
Location: benton ar.

Cub rock Shaft

Postby rterry » Thu Jul 13, 2023 7:42 pm

Rock shaft seems locked up want move any suggestions? I removed pump and lines still want budge ?

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Glen
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Posts: 6182
Joined: Mon Mar 19, 2012 7:33 pm
Zip Code: 00000
Tractors Owned: 1956 Farmall Cub with Fast Hitch, F-11 plow, Disc, Cultivator, Cub-22 mower
Circle of Safety: Y
Location: Wa.

Re: Cub rock Shaft

Postby Glen » Thu Jul 13, 2023 10:10 pm

Hi,
I guess you meant that the arms won't move when the engine was running, and the system had the proper amount of fluid in it.
You didn't say if the system had been working and quit, or you rebuilt it, and it won't work.

You shouldn't be able to move the rockshaft arms by hand, it is normal that they won't move by hand.
They have said on here that if you can move them by hand, something is wrong.
They move by hydraulic pressure from the pump.

Something could be wrong, like the bearings that hold the rockshaft being too tight, I've never seen that happen.
Or the bushing where the connecting rod from the piston connects to the rockshaft too tight, or seized from no lube.
Below is a picture from TM Tractor Parts of the front of a Touch Control, the connecting rod and bushing are at the upper left in the pic. The rockshaft is off.
Attachments
Cub T C 4.jpg

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darkmuncan81
Posts: 41
Joined: Thu Sep 15, 2022 11:46 am
Zip Code: 27052
Tractors Owned: 1959 Farmall Cub (SN: 213473J)
Location: Walnut Cove, NC

Re: Cub rock Shaft

Postby darkmuncan81 » Tue Jul 18, 2023 10:13 am

Not sure if you already tried this or not, but there is a grease point on each bearing where the rockshaft bisects the hydraulic block. Not to be overly simplistic, but could start there?
1959 Farmall Cub

rterry
10+ Years
10+ Years
Posts: 967
Joined: Mon Aug 07, 2006 6:07 pm
Location: benton ar.

Re: Cub rock Shaft

Postby rterry » Tue Jul 18, 2023 10:28 am

Found the problem pump would not pump enough pressure but thanks


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