How Does a PTO Pulley Work on a John Deere Rider Mower?

How Does a PTO Pulley Work on a John Deere Rider Mower?

Several models of John Deere riding mowers, yard tractors and garden Phoenix tractors are equipped with a power takeoff (PTO) function the operator uses to engage the mower blades of this machine. If you’ve engaged the PTO function and discover that there’s no response from the mower blades, then there may be a problem with the PTO. The PTO contains several components, among which is the PTO pulley.

PTO Principles

If you are not familiar with how the PTO clutch of the John Deere mower functions, it could be difficult to understand the purpose of the pulley. Driven by electricity provided by the mower’s 12-volt battery, the PTO clutch engages when its solenoid receives the electric spark. The PTO pulley is connected to the clutch and guides the belt that connects to the engine crankshaft pulley and rotates the blades of the mower which are under the mower’s deck.

PTO Pulley Malfunction

When the PTO pulley malfunctions in a John Deere mower, it’s very likely the mower blades will not react when you flick the PTO switch to the “On” position. The blades might refuse to engage or might fail to disengage. In any event, the malfunction poses a security issue, as you must be able to control the blades efficiently. When the PTO pulley, or any other region of the PTO system malfunctions, it’s vital that you repair it prior to continuing to work with the device.

PTO Pulley Replacement

When it comes to the PTO clutch, all the parts work together to stop and start the mower blades. A malfunction of any part of the system means replacing the whole PTO clutch assembly. For instance, you merely can’t pull on the PTO pulley out and replace it. Instead, contact a local John Deere repair store to purchase the whole PTO assembly for your specific model of machine. If you are uncomfortable replacing the PTO clutch, schedule a service appointment to have the work done by a professional.

Suitable PTO Function

The PTO system on John Deere mowers and tractors is designed to disengage the blades over about five minutes of activation. If that is not occurring at all or is taking much longer to occur, there is probably a problem with the PTO system. To check that the PTO system is working properly, you need to check the attachment engagement switch or lever. To accomplish this, park the mower and set the parking brake. Put the attachment engagement tighten or switch to this On” position. Attempt to begin the mower. The mower should not begin with the swap engaged.