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Grease seals for the main shaft of the T-4 Trencher. They are pressed into the trunion. 3 seals are required per trencher. 2 are used on the digging chain side and one on the belt guard side. Note: When installing the outer seal on the digging chain side, be sure to put grease between the two seals as this is the only lubrication the outer seal will receive.
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