Small Engine Troubleshooting Problems? Ask a Mechanic Now.
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Did you put 20W50 motor oil back into your transaxle? This is the recommended oil for your Hydro-Gear Transaxle. The reason your mower will not move, is because you very likely have trapped air inside your unit. Any time you change your oil, you will need to remove the air.
There is a procedure called Purging that you will need to perform, in order to purge the air from your transaxle.
Please click on the link below, to open the page that will give you detailed instructions, relating to the purging procedure.
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