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Cub Cadet Lawn mower blades won't engage

If your Cub Cadet lawn mower blades won't engage, the problem is usually in the PTO system that connects engine power to the deck blades. The most common cause is a failed PTO clutch. If the clutch is not getting power, the clutch solenoid is bad, or the clutch is simply worn out, the drive belt will not be engaged and the mower blade assembly will not turn. On many riding mower blades not engaging complaints, the next likely cause is a bad PTO switch. The PTO switch sends power to the PTO clutch, so if the switch fails, the mower PTO clutch not working symptom shows up fast. You can test the PTO switch with a multimeter for continuity, and if it does not test properly, replace it. Since the PTO clutch is not repairable, a defective one needs to be replaced outright. If your Cub Cadet riding mower deck blades will not turn or your lawn mower blades won't engage, enter your model number on RepairClinic.com to find the exact PTO clutch, PTO switch, mower blade, belt, or other replacement part that fits your specific mower.

01 - Cub Cadet 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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02 - Cub Cadet PTO Switch

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.
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Frequently Asked Questions

Why won't the blades engage on my Cub Cadet lawn mower?
How do I test a Cub Cadet mower PTO switch?
How do I know if the PTO clutch is bad on my Cub Cadet riding mower?
Can a wiring or electrical problem keep Cub Cadet mower blades from engaging?
How do I find the correct PTO clutch or PTO switch for my Cub Cadet mower?