Hydraulics just Quit on my 1971 John Deere 410

   / Hydraulics just Quit on my 1971 John Deere 410 #1  

gw 1

New member
Joined
May 21, 2014
Messages
1
Location
Cottenwood, Az.
Tractor
John Deere 410
I started her up, drove over to my fuel tank, started filling the tank, the engine seemed to bog down and then smoothed out and ran back a idle just fine. I finished the fueling, got back in the seat and none of the hydraulics have worked since. I checked the hydraulic pump at the front of the machine and it was fine (I happen to have a new spare that I installed). I checked the filters and topped off the reservoir, everything seemed OK but nothing works but the engine and electrical. I know there is a primary pump for low pressure hydraulics located behind the reverser , but I don't know how to even test it. Any suggestions would be truly appreciated. Jerry
 
   / Hydraulics just Quit on my 1971 John Deere 410 #2  
Sounds like the pump flow got blocked then by-passed perhaps? There are test ports I remember reading one. Have you looked at the connector that drives the main pump off the crankshaft to determine if it is turning?
 
   / Hydraulics just Quit on my 1971 John Deere 410 #3  
Welcome to TractorByNet!


I moved your thread to the Construction Equipment forum. :)
 

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