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  2. Dead man's switch - Wikipedia

    en.wikipedia.org/wiki/Dead_man's_switch

    The dead man's switch can also be located beneath the seat of a vehicle or machine and engages if the operator is not in the seat holding the switch down. On modern tractors, the switch will cut the engine while the transmission is engaged or the power take-off is spinning. On riding lawn mowers, the switch is often more extreme where the ...

  3. Pressure switch - Wikipedia

    en.wikipedia.org/wiki/Pressure_switch

    Hydraulic pressure switches have various uses in automobiles, for example, to warn if the engine's oil pressure falls below a safe level, or to control automatic transmission torque converter lock-up. Prior to the 1960s, a pressure switch was used in the hydraulic braking circuit to control power to the brake lights; more recent automobiles use ...

  4. Crankshaft position sensor - Wikipedia

    en.wikipedia.org/wiki/Crankshaft_position_sensor

    A crank sensor (CKP) [1] [2] [3] is an electronic device used in an internal combustion engine, both petrol and diesel, to monitor the position or rotational speed of the crankshaft. This information is used by engine management systems to control the fuel injection or the ignition system timing and other engine parameters.

  5. Oil pressure - Wikipedia

    en.wikipedia.org/wiki/Oil_pressure

    Murphy oil pressure gauges with switches that activate on low pressure. Oil pressure is an important factor in the longevity of most internal combustion engines. [1] With a forced lubrication system (invented by Frederick Lanchester), oil is picked up by a positive displacement oil pump and forced through oil galleries (passageways) into bearings, such as the main bearings, big end bearings ...

  6. Rope start - Wikipedia

    en.wikipedia.org/wiki/Rope_start

    Starting a Lazair II ultralight aircraft's JPX PUL 425 engine, equipped with a recoil starter. A rope start device housed in a Nose bullet of a Junkers Jumo 004 turbojet.. Rope start (also called pull start [citation needed] or rewind start [citation needed]) is a method of starting an internal combustion engine, usually on small machines, such as lawn mowers, chainsaws, grass trimmers ...

  7. Bitter cold winter temperatures are on their way out, but ...

    www.aol.com/bitter-cold-winter-temperatures-way...

    Yes we know the calendar still says it's fall, but if you're already sick of winter's cold, there is some good news on the way: The bitter Arctic blast that's overspread much of the central ...

  8. Hegseth’s name has been submitted for FBI background check ...

    www.aol.com/news/hegseth-name-submitted-fbi...

    Pete Hegseth’s name has been submitted to the FBI for a background check, his attorney told CNN Thursday, as some lawmakers call for more vetting of President-elect Donald Trump’s pick to run ...

  9. Level sensor - Wikipedia

    en.wikipedia.org/wiki/Level_sensor

    Hydrostatic pressure level sensors are submersible or externally mounted pressure sensors suitable for measuring the level of corrosive liquids in deep tanks or water in reservoirs. Typically, fluid level is determined by the pressure at the bottom of the fluid containment (tank or reservoir); the pressure at the bottom, adjusted for the ...