Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Do either right or left control move mower? Do the arms feel dead? For both arms (transmissions) to lose function, the only common part is the drive belt. Go back and check and I think you will find new belt is off a pulley! That and the two release levers for free wheel are the only things that can affect drive on both sides!
If both arms are dead, the pulleys on top of the transmissions are not turning. Check the belt at the engine pulley!
Tranmissions didn't go out! Either belt is loose, or the free wheel levers got pulled!
It has free wheels levers, that you pull to move mower without running engine. They keep transmissions from driving when pulled.
It has to be belt being loose, or the freewheel levers being pulled out, Push the freewheel levers in and see if mower will drive.
I have to go walk the dogs! Be back in hour!
OK> I'M back!
OK> That is priority! It will be over 100 here today! Texas
I see question is still open, did you find problem?