Posted by pete 23 on January 08, 2018 at 11:23:22 from (50.33.30.223):
In Reply to: IH 686 Hydraulics posted by patrick79 on January 08, 2018 at 09:49:39:
Are you talking a diesel tractor with two batteries. One mounted on left side near rear wheel. If so, that is the transmission breather and should have a little breather cap on it. If the oil is foamy that comes out, you are sucking air in system. Most common aeration problem is iced or plugged filter causing cavitation on those models. Other one is the return tube inside the rear frame. Can be filter gasket also if you changed filter and didn't use new gasket or get all of old gasket off.
To check filter for sucking air in, smear grease around the edge cover and see if it gets sucked in. To check return line, remove third arm connection plate at rear and reach in. I believe that model will have a steel line running all the way from top under cover to where it directs oil right back into the main pump suction tube. Any thing moving on that tube means trouble. Early tractors had a hose connecting main suction tube to upper short piece of steel pi
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Today's Featured Article - Grain Threshing in the Early 40's - by Jerry D. Coleman. How many of you can sit there and say that you have plowed with a mule? Well I would say not many, but maybe a few. This story is about the day my Grandfather Brown (true name) decided along with my parents to purchase a new Ford tractor. It wasn't really new except to us. The year was about 1967 and my father found a good used Ford 601 tractor to use on the farm instead of "Bob", our old mule. Now my grandfather had had this mule since the mid 40's and he was getting some age on him. S
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