Hydraulic Leak

/ Hydraulic Leak #1  

JBC1941

New member
Joined
Aug 2, 2024
Messages
8
Tractor
John Deere 310B
Pressure Control Valve blowing o ring on JD 310B what could cause this problem?
 
/ Hydraulic Leak #2  
bad relief?
 
/ Hydraulic Leak
  • Thread Starter
#4  
Yes it’s the item # 8 o ring that blows, replaced it about 3 weeks ago and it blowed again, with tractor idling. I haven’t checked the pump pressure yet.
 
/ Hydraulic Leak
  • Thread Starter
#5  
Gotta wonder, just what are you referring to as "pressure control valve" and what O ring? Might it be in this diagram?

Gotta wonder, just what are you referring to as "pressure control valve" and what O ring? Might it be in this diagram?

 
/ Hydraulic Leak
  • Thread Starter
#6  
Yes, item # 8 o ring that blows
 

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