Posted by JD Seller on December 23, 2016 at 15:34:26 from (208.126.196.24):
In Reply to: Today's posted by buickanddeere on December 23, 2016 at 07:50:23:
This break in period is why I have used a Dynometer for the last 30 years or so on fresh overhauled motors. I usually run them at 15-20% load for a few minutes to make sure of not leaks and oil pressure. I then go to 50% for five minutes, then 80% for five and then 100% PTO load for at least one hour. After that the rings are seated so they will not burn oil and seem to last fine.
Before I started doing this it was common to overhaul motors over the winter. Then the farmers would lightly use the tractor for feeding chores over the winter. So you would have a COLD tractor being ran at little to zero load. 20-30% of these tractors would use oil from day one when they finally started doing field work. Then the mechanic/dealership were all blamed for not doing a good job.
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Today's Featured Article - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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