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How does a John Deere PTO clutch work?

How does a John Deere PTO clutch work?

Driven by electricity provided by the mower’s 12-volt battery, the PTO clutch engages when its solenoid receives an electric spark. The PTO pulley is attached to the clutch and guides the belt that connects to the engine crankshaft pulley and rotates the blades of the mower that are located under the mower’s deck.

Will a bad PTO clutch drain your battery?

The PTO clutch needs full voltage to remain engaged… If the charging circuit is not keeping the battery Above 12 volts with the engine running, the PTO clutch will drain the battery down to the point it will disengage, at that point there will not be enough left in the battery to start the engine.

Should my PTO clutch spin freely?

The PTO assembly on the 318 is a clutch/brake unit. It is supposed to stop the driven attachment (think mower blades here…) as soon as the PTO is disengaged. It should NOT spin freely when the power is off.

Can a John Deere L120 lawn tractor be replaced?

When your wiring harness on your tractor becomes damaged at the PTO connector, this New PTO wiring harness for the L and L lawn tractors. Item was an exact replacement and worked just fine.

Why is my PTO switch on my L120 not working?

One of the black wires from PTO switch was severed at the socket to the clutch. Removed socket, pried out the connector, stripped the end of the broken black wire, and reattached (soldered just to make sure since the connector was a little mangled due to removing old nub of wire). Works perfect, including the RIO working as it should.

What happens when you engage PTO on John Deere lawn mower?

John Deere L130 – When I pull up on PTO to engage mower, nothing happens, still drives but no grass cutting. Blades and belts are fine. Any ideas? … read more

Where is the electric clutch on a John Deere lawn mower?

Remove the volt meter leads from the battery. Turn off the lawn mower. The electric clutch is located under the front of the frame and is bolted to the crank shaft of the engine. On the top of the clutch there is a connector.

Where is the PTO clutch on a John Deere mower?

The harness to your PTO clutch is on the right up inside the frame beneath the engine. Check the wires. I have not seen problems on a 155C (thank you for giving the serial #) but some did exist on previous models. If those appear okay, go further back on the same (right) side tracing the harness that goes to the seat switch.

One of the black wires from PTO switch was severed at the socket to the clutch. Removed socket, pried out the connector, stripped the end of the broken black wire, and reattached (soldered just to make sure since the connector was a little mangled due to removing old nub of wire). Works perfect, including the RIO working as it should.

When do you disengage the PTO on a John Deere tractor?

The PTO system on John Deere mowers and tractors is designed to disengage the blades within approximately five seconds of activation. If this is not happening at all or is taking considerably longer to happen, there is likely a problem with the PTO system.

Why does my mower not engage when the PTO switch is turned on?

Sit-on-top lawn mower. Zero-turn radius mower, 50″ mower deck, hydro transmission. mower deck will not engage when the PTO switch is turned on? When the PTO switch is turned on the mower deck does not come on. I have replaced the PTO switch but it still does nothing. Could the electric clutch be bad? Answered!

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Ruth Doyle