An automatic sewer rodding machine having a carriage mounted storage reel rotatably driven by a hydraulic drive. A rod feed system also mounted on the carriage has a hydraulic drive to feed sewer cleaning rod out and back. An automatic rod feed reversing system senses resistance to rod movement and automatically reverses rod travel for a predetermined time period. After the period times out rod travel is restored to normal operation. The automatic reversing system continuously cycles the sewer cleaning rod into an obstruction in a sewer line until it is cleared. Switch selection of normal or reverse automatic rod feed or entirely manual operation is provided.
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