RIDING HYDROSTATIC MOWER - STARTED BUT WHEN PUT IN GEAR SMOKED AND WOULDN'T MOVE

[odie]

ARIENS 42'" HYDROSTATIC MOWER - 3 YRS OLD - JUMP STARTED IT, IT RAN FINE PUT IT IN FORWARD GEAR IT BARELY MOVED
AND THEN SMOKE ROLLED OUT UNDER FRONT - TURNED OFF & LIFTED HOOD AND SMOKE ROLLED OUT. COULD IT BE TRANSMISSION
NEEDS ADJUSTMENT OR WHAT. THANKS LARRY - odiebell@earthlink.net

 

[ILENGINE]

Brake on transmission is stuck in the engaged position. Normally is located on the right side of tranny in front of axle. Could be on other side though.