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Prematurely failed drive chains
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Lack of lubrication.
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Lubricate chains, every 10 hours, after operation when chains are still warm. (See EVERY 10 HOURS in Lubrication and Maintenance section.)
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Operating too tight or too loose.
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Adjust chain tension. (See ADJUSTING LOWER AND UPPER ROLL DRIVE CHAINS in Service-Baler section.)
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Misalignment of drive sprockets and idlers.
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Align all sprockets and idlers. (See your John Deere dealer.)
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Main drive slip clutch does not slip.
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Slip the clutch. (See SLIPPING MAIN PTO DRIVELINE SLIP CLUTCH in Service-Baler section.) Disassemble clutch and clean disk spring.
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