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Farmall & IHC Tractors Discussion Forum
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IH 240 air in hydraulic lines

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TY

07-16-2005 20:32:58




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I have an IH 240 tractor with loader with air in the hydraulic lines. One of the steel lines blew last week behind the seat and we had to remove another line in order to get this one out. The problem I am having is that I can't get the loader, 3pt, etc. to operate properly. there is a lot of air in the system and I don't know how to free it. The manual says to operate levers throughout teir full travel 10-12 times and turn the steering wheel back and forth. I tried this with zero luck. The fluid level is full and the pump is noisy and the lines are vibrating terribly.

I have never had this problem with any other loader tractor I have had. On other tractors, I just replaced the lines and the air would work itself out immediately.

Can anyone provide any info on how to get this tractor going again. Thank you.

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El Toro

07-17-2005 05:54:15




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 Re: IH 240 air in hydraulic lines in reply to TY, 07-16-2005 20:32:58  
Sounds like that pump is cavitating (sucking air).
The hydraulic fluid will look milky from the air bubbles. The pump will make a whiny noise too.
May be sucking air from the inlet side of the pump. Hal



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mark k

07-16-2005 20:42:55




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 Re: IH 240 air in hydraulic lines in reply to TY, 07-16-2005 20:32:58  
Hello,
I know sometimes on a machine tool when the suction screen is plugged the pump will whine and the lines will vibrate. I don't know on a tractor, but if it is like the 350 it more than likely needs cleaning anyhow. Mark



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