Filter Screen

/ Filter Screen #1  

trk

New member
Joined
Oct 29, 2008
Messages
4
I have a JD 950 tractor with a after market bucket. A while back the bucket stated to move very slow. There is no paper filter for the hydraulics on this trator, only a fine screen at the sump. The screen was dirty. I changed the oil and cleaned the screen. The bucket worked fine for only a short time. Again the screen was dirty. I figured the oil change only changed a portion of the oil, so I changed the oil again and cleaned the screen. The bucket worked good for only a short time. I am sure the screen is dirty again. Where is this "fuzz" coming from that clogging the scrren?
 
/ Filter Screen #2  
Welcome to TBN:D

Does the seem like it's clogged with a rubber or steel material(use a magnet to check)? Steel may indicate the pump going bad, and rubber may mean a hose is deteriorating from the inside out.
 
/ Filter Screen #3  
I would install a spin on type filter block assembly on the return side of the hydraulics. Also, this time, clean the bottom of the tank. This is where all this garbage settles.
 
/ Filter Screen
  • Thread Starter
#4  
The material on the screen is not metal. It looks simulat to cotton "fuzz". I wouldn't think it is coming from a cylinder or pump. Can a hose that is bad cast off a material like this?
 
/ Filter Screen #5  
Most hoses have a nitrile inner liner which is black. I know the fuzz you describe. I've never given it much thought. You don't park your tractor near your dryer vent from your house, do you? ;)
 
/ Filter Screen #6  
I've seen lint in hydraulic systems that were wiped out with plain cotton rags instead of lint free wipes. Plugs up the filters quite badly. Of course this was on a system where a guy could crawl inside the tank to clean it out. I wouldn't have thought you could get enough lint in a small system to plug the screen more than once.
I would say cleaning the tank the very best you can with something that won't add lint is the best you can do. Or else add a filter and/or keep cleaning the screen until it quits plugging.
 
/ Filter Screen
  • Thread Starter
#8  
The tractor is parked outside under a covered shed and not used much at all.
 
/ Filter Screen
  • Thread Starter
#9  
If this is algae, what do I need to do? I have changed the hydraulic oil twice.
 

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