Backhoe M59 error 90

   / M59 error 90 #1  

zachc

New member
Joined
Feb 28, 2012
Messages
1
Location
farmville ca
Tractor
kubota M59
I was working with my kubota M59 and it stopped moving forward but will go backwards got an error 90 please help
 
   / M59 error 90 #2  
I was working with my kubota M59 and it stopped moving forward but will go backwards got an error 90 please help

Zachc, did you ever get this resolved? Saw this earlier but I was at work and did not have the information at hand. According to the workshop manual, error 90 means "forward proportional valve in trouble", which makes sense given the symptoms you describe above. According to the manual, signals from the pedal are transmitted to the ECU which controls the two proportional valves, which in turn control the HST swash plate which controls forward/reverse via the HST variable displacement pump. This one is going to need to go in to a Kubota shop for repair I am afraid.
 
   / M59 error 90 #3  
Does anyone know where i can get the service manual(digital) for my new Kubota M59? Well, new to me!
Thsnks all.
 
   / M59 error 90 #4  
So far as I know (haven't checked in several years) Kubota does not provide digital downloads for manuals. I ordered mine online from a dealer like any other tractor part. For example, Coleman Equipment in the west, or Messicks in the east.
 

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