Air in Hydraulic System

   / Air in Hydraulic System #1  

P hut

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Oct 27, 2010
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Tractor
New Holland TC33D
Air in Hydraulic System 2002 New Holland TC33DA

I have New Holland TC33D that I replaced a hydraulic line on the loader. Now when I use front loader or 3 point hitch it moves very jerky and slow.I am pretty sure this is due to air the lines. Will this work it's way out or is there a place to bleed the system.
 
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   / Air in Hydraulic System #2  
Hydraulic cylinders will self bleed if you hold the lever long enough to fully stroke the cylinder plus a few seconds to push the air out. I'd use the same procedure on the 3-point to expel the air. Might have to do it a few times to work all of it out of the system. Have checked the oil level and replaced any oil that was lost?

Kim
 
   / Air in Hydraulic System
  • Thread Starter
#3  
Thanks, is there any chance of hurting the hydraulic pump? The sytem makes a squealing sound during operation. There were no problems before hose replacement.
 
   / Air in Hydraulic System #4  
Thanks, is there any chance of hurting the hydraulic pump? The sytem makes a squealing sound during operation. There were no problems before hose replacement.

The squealing sound is probably your pressure relief valve (if it happens when you move the control lever). I would reset all quick disconnects and check the fluid level before doing anything else.

Aaron Z
 

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