Hey Eliacim: "AS REQUIRED" says the maintenance manual. I recommend checking the play in the rubber donuts when dong the 100 hour. if there is a 1/4" or more slack between the donut stack and the upper fitting, I would replace them. I believe the as required statement was so that their condition would be checked and when they deteriorated, they should be replaced. I also believe that if you check the height of the tail of your Ercoupe, and if it is 2 or 3 inches below the 75" new height it is most likely time to think about replacing the donuts. JMHO Regards Lynn In a message dated 5/22/2010 11:11:55 P.M. Eastern Daylight Time, [email protected] writes:
What's the criteria to replace the rubber donuts in the main landing gear? Mine measure 4 inches from top to bottom, when loaded (compressed) with the airplane's weight. Eliacim
