Help choosing new loader valve 1957 MM 445

cmcgalla · Apr 6, 2022

I have a 1957 MM 445 Industrial with an aftermarket front loader and backhoe. I need a new control valve for the front loader, double acting, 2 spool as I have up/down and curl. I am not sure what to get as far as GPM. Any idea how many GPM the pump on that tractor is? It is a gear pump and should probably be replaced as it only has power when I run the engine at high RPM's.
Thanks
Zeek

MMDEL · Apr 7, 2022

You want a 2 spool loader valve that has one lever with UP, DOWN, and FLOAT. And one lever with UP, DOWN (to curl the bucket back and forth) with spring loaded spool to center to neutral. As far as GPM as long as the inlet and outlet ports are the same size that is not an issue.
MMDEL

Help choosing new loader valve 1957 MM 445

cmcgalla

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MMDEL

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