How does a PTO work on a lawn mower?

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.

What is a PTO on a lawn mower?

The power take off (PTO) clutch in your lawnmower is the drive pulley that transfers the power of the engine to the blade. … The PTO clutch has a pulley that is usually machine cut and a housing brace.

How do I know if my PTO clutch is bad?

Simple test would be to remove the mower deck belt from the PTO pulley and try to engage the PTO. If it doesn’t stall, the clutch is not your problem. If it does stall I would guess you’ve had a bearing fail in the clutch. The other thing to check is the seat switch if it’s still enabled.

How does a PTO engage?

The PTO is engaged and disengaged using the main transmission clutch and a remote control mechanism which operates on the PTO itself. Typically, an air valve is used to engage the PTO, but a mechanical linkage, electric or hydraulic mechanism are also options.

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What does manual PTO mean?

The power take off is whats a manual pto used to transmit power from a tractor or other source of power to an implement. … The pto is a switch whats a manual pto or lever found on tractors and mowers and stands for power take off.

How long does a PTO clutch last?

LawnSite Member

See people getting 600 – 1000 hours having to replace.

Why does my lawn mower stall when I engage the blades?

If a pulley doesn’t spin freely, it can cause the engine to die when the blades are engaged. … The pulleys in your lawn tractor are driven by the drive belt, and turn the spindles. If a pulley doesn’t spin freely, it can cause the engine to die when the blades are engaged.

How many amps does a PTO clutch draw?

Engage the PTO switch. The clutch should have an amp draw of approximately 4.0 amps. If the meter reads significantly above or below 4.0 amps, there may be a shorted coil, faulty switch or battery causing the problem. The clutch assembly should be kept free from debris buildup.

What does a PTO switch do?

The PTO is a switch or lever found on tractors and mowers and stands for Power Take Off. This can be an electric switch or mechanical engagement that takes engine power to operate the mower deck or an implement. The PTO can run mowers by either a belt or a shaft.

Why won’t my mower blades engage?

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 switch provides power to the PTO clutch.

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Is it bad to drive with PTO engaged?

Driving it with the PTO engaged will not hurt it when you are tipping it (low speed). If you forget and leave it engaged (should be a little light on the air control) and go scooting off down the highway with it on…then there could be trouble. The air tailgate may not release if it has too much load on it.

Are PTO shafts universal?

The parts of a PTO shaft consist of the internal and external PTO yoke, universal joint, safety chain and safety shield. Several different types of PTO shafts are available, so it’s essential to choose the right one for your equipment and applications.

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