The transmission control valve is on the left side of the transmission. From the factory there would have been a bleeder on the brake line fitting (1/4" wrench) going into the inching valve. When the machine stops pulling, pull the floor and crack the bleeder open. If it had pressure, it should begin to pull again. Chances are the inching master cylinder (left side) push rod is set too tight, needs 1/8" free travel.
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