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Changing a JD STX38 transmission drive belt.Today I undertook removing my almost failed transmission drive belt on a JOHN DEERe STX38. In order to do so (it had come off both the engine pulley and the transmission pulley but was not broken), I had to unbolt the brake pedal lock pin, and disconnect the front wheel steering bars (cotter pin and washer holding each bar to the front wheel axels). The belt then could be removed as the steering arms pass under the belt when it is in place, and the bars are attached by cotter pin and washer, one set at the wheels, and another set at the steering arms in the middle of the chassis. There is one idler pulley in a v shape and another idler pulley that is flattened between the transmission and the steering arms. The back of the belt pushes against the flattened pulley, and the inside (v side) of the belt passes the v shaped pulley as these 2 pulleys provide belt tension.
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6y ago
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6y ago

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Q: How do you change a drive-belt on an STX38 John Deere lawnmower?
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