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What is the TBO of the PSRU?

April 26, 2017psru tbo

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What is the TBO of the PSRU?

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Concerning the TBO of the PSRU: The main failure mode of the HyVo chain is that the link hole and the pin will wear and the chain will stretch over time until the chain skips a tooth. The manufactures of HyVo (Morse and Ramsey) state the chain will last for 15,000 hrs under rated load with perfect lubrication and no power pulse. They give a service factor of 2 for an automotive engine. (7500 hrs). Vesta provides an internal oil mechanism on the bearing, seals, and the inside of the chain. Vesta recommends changing the chain, bearings, and seals at 2000hrs. The cost is apx. $350 in off the shelf parts .