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Full model number? L1046, LT1046, LTX1046?
Using lTX1046, on the right side of the transmission, just ahead of the right tire, is the mechanical disc brake, Loosen the two bolts holding the caliper, and tap on the brake to release it. With brake released, oil it with WD40, and retighten the two bolts, that should take care of it. Here is diagram.
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