lack of hydraulic pressure

   / lack of hydraulic pressure #1  

rich3930

New member
Joined
Nov 26, 2011
Messages
6
Location
atwater,ohio
Tractor
john deere 510 backhoe
john deere 510 backhoe, im lacking pressure on some of the cylinders on the hoe only. the front bucket works ok,
 
   / lack of hydraulic pressure #2  
Everything else is OK? Steering, R/F shuttle? And it's just a problem with "some" of the hydraulic functions on the hoe?

If I had to take a "stab" at the problem - I'd be looking at the multi-function valve body for the hoe. Could be debris or inline gunk that's causing a loss of functional pressure in one or more of the valve circuits.

Isolate the hyd circuit to the valve and check the flow.

Good luck.

AKfish
 
   / lack of hydraulic pressure
  • Thread Starter
#3  
thanks for the advice
 
   / lack of hydraulic pressure #4  
Which functions on the hoe are weak? Each function has it's own relief valve. You could have a weak relief valve or two. Did the functions that are weak, all get weak at the same time? On those functions, do the cylinders leak down quickly/ If so you could have blown seals in the cylinders.
 

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