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Re: Farmall M Hyd pump Removal Questions
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Posted by john d on January 16, 2001 at 17:37:59 from (152.163.207.196):
In Reply to: Farmall M Hyd pump Removal Questions posted by Lance Feia on January 16, 2001 at 17:11:43:
It's not too big a job, but it's easier with another set of strong arms. It's easier to drain the pump while it's in the tractor. Remove the pipe fittings on each side, the control lever, and the filler cap. Take off the access plate behind the pump reservoir, and use a light to find the coupler which connects the pump drive shaft on the back side of the pump to the transmission. This coupler is likely one of two kinds; look for a cotter pin to remove. Leave the transmission in neutral.
Lowering the pump can be done by removing the four bolts at the corners on the bottom. Beware, it is heavier than it looks, and if it's oily, it can easily slip and hurt you badly! The safest ways I know of to lower it include 1)at least one strong guy to help grab it and lower it when the last bolt comes out, 2)using two all-thread rods on opposite corners of the pump to lower it with a couple of nuts, 3)putting a rod through the cross-hole in the bottom of the casting and lowering it with a person on each side, being careful to keep it from swinging around on the rod as it comes down, 4)using a rod through that same hole with a square key welded to it to keep the pump from turning on the rod, 5)if you must do it yourself - using an old bumper jack with an extended base and a rod and key welded on it and run through the bottom of the pump casting. An old tire or something else may be placed under it to cushion the blow if it drops suddenly.
If you're young, strong, and brave, lay on your back and take it out by yourself. Just be sure you keep your head out of the way when you remove that last bolt!
I don't know of any reason why you can't use the tractor with the pump removed.
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