If your Poulan lawn mower blades won't engage, the most common cause is a failed PTO clutch. The PTO clutch transfers engine power to the deck through the drive belt, so if the clutch is not getting power, the clutch solenoid is bad, or the clutch itself is worn out, the mower blades won't rotate. The next likely cause is a bad PTO switch, which sends power to the clutch. If the switch has no continuity, your Poulan riding mower blades not engaging issue may come down to a simple electrical failure rather than a deck or blade problem. On a mower PTO clutch not working complaint, it helps to check for power at the clutch before replacing parts, then test the PTO switch with a multimeter. Since the PTO clutch is not repairable, a defective one needs to be replaced. RepairClinic.com makes it easier to match the right PTO clutch, PTO switch, blade, belt, and other Poulan lawn mower parts to your machine. Enter your model number on RepairClinic.com to find the exact replacement part for your specific lawn mower.
01 - Poulan Lawn Mower PTO Clutch
The PTO (Power Take Off) clutch provides a means of manually disconnecting the engine from the blades. When the clutch solenoid is energized, the clutch engages the drive belt to drive the rotation of the lawn mower blades. If the PTO clutch is not getting power, if the clutch solenoid is defective, or if the clutch is worn out, the lawn mower blades will not engage. The PTO clutch is not repairable—if the clutch is defective, you must replace it.
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The PTO switch provides power to the PTO clutch. If the switch is defective, it may not supply power to the PTO clutch. As a result, the clutch won’t engage, and the lawn mower blades won’t rotate. To determine if the switch is defective, use a multimeter to test it for continuity. If the PTO switch is defective, replace it.