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Canvas running high at drive roll
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Drive roll out of adjustment
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Move drive roll strap to left
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Canvas running low at drive roll
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Drive roll out of adjustment
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Move drive roll strap to right
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Canvas running low at idler roll
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Idler roll springs out of adjustment
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Adjust springs to correct dimension
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Canvas running high at idler roll
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Idler roll springs out of adjustment
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Adjust springs to correct dimension
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