990 Hydraulic problem

   / 990 Hydraulic problem #1  

chorsken

New member
Joined
Apr 20, 2012
Messages
3
Location
Wolfeboro, NH
Tractor
John Deere 990 and B
Bucket and steering intermittent, changed filter still a problem. Is cleaning the suction screen the next step? Thanks
 
   / 990 Hydraulic problem
  • Thread Starter
#3  
THANKS FOR YOUR REPLY. BECAUSE BOTH THE STEERING AND BUCKET WERE DOING THE SAME, AND THEY OPPERATE FROM TWO DIFFERENT PUMPS, I FIGURED IT WAS THE INTAKE HYD OIL COMING INTO THE PUMP UNITS. I CHECKED THE HOSES REAL CAREFULL LEADING BACK FROM THE PUMP TO THE SUPPLY AND FOUND A PINHOLE THAT WAS ALLOWING AIR TO GET INTO THE SYSTEM. FIXED THAT AND EVERYTHING WAS OK. THANKS
 

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