Small Engine Troubleshooting Problems? Ask a Mechanic Now.
Hi, my name is***** will be assisting you.
Is it the transmission drive belts that lock up or the mower deck belt?
The first thing that I would look at is the drive pulleys, idler pulleys, variable speed pulley on the machine. It sounds like you have a pulley that is locking up which in turn causes the machine to not move or the belts to stop turning. The most likely cause is the variable speed pulley, when it locks you will smoke the belt at the engine pulley and the drive will stop working.
If you would like a diagram of the system I can provide one for you, however I will need the full model number and serial number from the machine.
Thank you it has been a pleasure to assist you.
Please take a moment to rate your experience.
Yes, it could be the input shaft bearing going into the top of the transmission. I have seen fewer issues with it that what I have the variable speed pulley bearings however. That is why I suggested checking the idler pulleys and variable speed pulley first.
If it is the input shaft bearing on the transmission you will have to remove the transmission from the machine, split the transmission in half by removing the top cover, remove the input pulley and shaft then you can drive the old bearing out and replace it with a new one. It is not extremely hard but can be time consuming.