Oliver 770 Roosa master Stanadyne pump removal question

   / Oliver 770 Roosa master Stanadyne pump removal question #1  

stevewatr

Silver Member
Joined
Oct 8, 2011
Messages
156
Location
Massachusetts
Tractor
Ford 1920 2WD geared
Hello, I am having trouble removing the gear from the pump drive shaft. I was able to remove the pump because the whole gear/shaft assemblly slid out the front, but I know during re-assemblly, in order to be sure the umbrella seals go in correctly, I think I need to insert the shaft into the pump first, then install the pump, but because the tractor gear does not fit through that hole on the back, I think it has to come off. There were two bolts going through holes in the gear, they appear to help index the gear to the shaft, then there is a large nut on the end of the shaft, but it will not budge. The only way to hold the shaft, is by the tang on the end. I'm worried I might snap the shaft at the skinny part. Is there a trick to removing this nut??
 
   / Oliver 770 Roosa master Stanadyne pump removal question
  • Thread Starter
#2  
A nice guy on Yesterday's tractors forum advised holding it with a rag, and useing an impact wrench.....It worked great.
 

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