Real easy to adjust. I made up a tester using a pioner male end, reducer, 6 inch nipple, 1/4 inch coupler and and old airco oxygen regulator gauge. The adjustment is on outside of the hydraulic pump. It is on the upper front part of the pump. There maybe a wire twist lock on it Use a big screw driver to turn it out for less pressure. If it has not been touched for a long time you may have to use a torch to help it along. Also, have had some foreign material get in it. If you have to take it off(4 sllen bolts, make sure you have an extra gasket and 2 little orings that go between the valve and pump. The gasket is paper thin and almost always tears. If this does not help, there is a wealth of knowledge on the Oliver board. I still have a few Whites left with more than 10 to 12,000 hours. Bought my first one in 1976. They have been good tractors and fairly economical to keep running. I have never blown out a coupler. Pioneer uses 2 or three styles. Maybe you have a mismatch. I take that back I had one fall off and it rubbed part of ball off on road pavement. ps If You need any parts and can not find them anywhere else, shoot me an email. I still could spare a few.
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Today's Featured Article - Usin Your Implements: Bucket Loader - by Curtis Von Fange. Introduction: Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he rea
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