🚨 John Deere E100 Loses forward and reverse transmission power
Top Culprit: Stripped upper transmission drive pulley
Why It Happens: The plastic splines inside the upper transmission pulley can strip, allowing the pulley to turn without properly driving the transmission input shaft.
🛠️ The 60-Second Diagnostic Test
- Shut the mower off, remove the key, and inspect the upper transmission pulley while checking for excessive movement or damaged splines.
- Verify the drive belt is intact and properly tensioned before confirming the pulley is slipping on the transmission shaft.
💡 The Quick Fix Steps
- Remove the drive belt and damaged upper transmission pulley.
- Install the correct replacement pulley, secure it properly, and verify forward and reverse operation.