Belly pump removal on a Farmall M

You have to remove all of the fittings in the sides, remove the cap for the dipstick, remove the valve handle, then turn the coupling so one side is vertical. Then unbolt while its supported and lower with a floor jack while balancing it. I done it last time by removing two bolts and threading all thread in with nuts on it to lower it because I didnt have anyone to hold it steady on a floor jack. Be careful its kinda heavy.
 
I should have described the coupler in more detail. Its a piece of round stock with two keys machined in it. One on each end and ninety degrees from one another. Google farmall m belly pump coupler pics for an image. One key has to be vertical doesnt matter which one.
 
There is a hole in the bottom of the belly pump that runs all the way thru from one side to the other. That is to put a rod thru and a man on each side to lower it. Removing the bolts and installing long all thread is a lot safer thought.
 
The coupler isn't that hard to put in you just have to have patience. I have mounted it on the pump before I lift it all the way up in there. You may have to manually crank the engine over slowly to rotate the drive shaft for the pump to get the slot in the vertical position.
 

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