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You have two pulleys .. one is the driver pulley and the other is the driven pulley.. now a tensioner pulley goes in between those two pulleys to put some tension on the belt so when the driven belt starts to turn the belt won't start to slip.. so it tightens the belt up

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โˆ™ 2012-06-06 02:49:44
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Q: What is a tensioner pulley?
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