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He Solved A Seal Problem With His Kuhn 8-ft Disc Mower
  Jim White, Water Valley, Miss.: Jim likes his Kuhn 8-ft. disc mower but says it has one problem. “When the mower is parked for the winter, moisture will get into the top end of the lift cylinder which eventually causes rust to form and damage the seals. Replacing the seals is time consuming and expensive, because you have to tear the cylinder apart in order to install new seals. And it costs about $100 for the seals, not including labor.
  “The mower has a single acting cylinder so when it’s extended the shaft goes all the way down, which leaves a cavity at the top that can trap moisture. You wouldn’t have this problem with a double acting cylinder because the shaft is always covered with oil.”
  To solve the problem, White unhooks the cylinder from the mower and then retracts the cylinder which leaves the entire shaft covered. “I don’t have this problem during the summer because as long as the mower is used occasionally, the cylinder will get coated with oil. It’s not a problem limited to just Kuhn disc mowers. My neighbors have had the same trouble with other equipment,” he notes.  

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2016 - Volume #40, Issue #2