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PTO is Power Take Off... if the truck has a hydraulic system (such as dump trucks, wreckers, roll-offs, etc.), then it has a PTO which engages the hydraulic pump.
PTO is a Power Take Off. It's often used to operate hydraulic systems (e.g., the hydraulic pump on a dump truck).
Same as you do on a manual transmission... you drain the transmission fluid, remove the PTO cover, and install the hydraulic pump or motor where the PTO cover was.
To transfer power from the PTO or ETO (a PTO mounts to the transmission and is driven by the flywheel; an ETO runs off the engine crankshaft) usually to a hydraulic pump.
You will probably burn out the hydraulic pump in a short time.
Depending on which end it's coming from, you probably have either a leaking tailshaft at the PTO gearbox, or a leaking input shaft seal on the hydraulic pump.
The Power Take-Off is used to provide power to equipment that was not built onto a machine in the factory. The PTO may come in the form of a shaft running off the drive train, a fly-wheel running off the drive train or hydraulic connections, powered by the onboard hydraulic pump.
Depending on whether you have a PTO or ETO, you either have a gearbox attached to the transmission which usually runs off the flywheel, or else which runs off the crankshaft. When engaged, the PTO/ETO is attached to a shaft which turns with the PTO/ETO fixture. That mechanical energy gets transferred to an apparatus - usually a hydraulic pump, and the causes the hydraulic fluid to flow, creating the pressure and flow needed to operate hydraulically driven components.
A person could purchase a pto pump from several different places. Some of the places that one can purchase a pto pump from are: Northern Tool, and eBay.
1010 SPECIAL HYDRAULIC OIL
Right next to where to PTO shaft comes out of the back of the tractor there is a sight glass for the hydraulic fluid.
It's all pretty much hydraulic. It will either dump up with cylinders under the bed or it will push the load out the back with a plate that has cylinders behind it. The hydraulics are powered by a pump that's normally run off the pto on the transmission or driven by the crank shaft. The pto is engaged and it turns the pump. The pump sends the fluid to a valve the driver engages. the valve lets the fluid go to the cylinder that pushes the load.