Posted by Darryl on April 22, 1998 at 17:36:04:
I HAVE A MODEL #640 FORD TRACTOR.MADE IN THE
1950'S.IT HAS A LOADER.HYDAULIC PUMP IS A PISTON
TYPE,4gpm.I WANT TO INCREASE THE PRESURE,BECAUSE
THE LOADER MOVES TO SLOW.IF YOU KNOW HOW PLEASE
LET ME KNOW.THANKS FOR YOUR HELP.