Re: MW hydraulic pump on a farmall M

Posted by Ken K. on April 10, 2005 at 21:25:11 from (63.26.11.130):

In Reply to: Re: MW hydraulic pump on a farmall M posted by RustyFarmall on April 10, 2005 at 14:14:21:

I have a M&W live pump on my MD using the belly pump housing for storage. On my belly pump the pressure line goes into the hole where the old pump drive shaft was with a special cast pipe and screw set-up from M&W. The later M&W kits did away with this set-up and you just pluged the drive shaft hole and they added a by-pass valve that was mounted on the 2 way valve.(Christmas tree) The gears are gone from the inside of the pump but everything else is original except the by-pass spring which must have been replaced with a stronger spring because now it puts out about 1200 lbs. hydraulic pressure compaired to the original 800 lbs. My MD has the 2 way valve on it so you need the screw on the filler cap closed when you use 2 way hydraulic cylinders. Open the valve for 1 way cylinders. (If you don't close the valve, oil will come out of the valve on the cap!)

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