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To replace the hydraulic pump in a JOHN DEERe 6620 combine, first, ensure the machine is parked on a level surface and the engine is off. Disconnect the hydraulic lines and electrical connections from the pump, then remove any mounting bolts securing the pump to the engine. Install the new pump by reversing the removal process, ensuring all connections are secure and free of leaks. Finally, refill the hydraulic system with the appropriate fluid and check for proper operation.

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1mo ago

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