What’s a Zero Turn Lawn Mower?

MaxZoom60_500A zero-turn riding lawn mower is a standard riding lawn mower that can practically “turn on a dime.” Different brands and models achieve this in different ways, but hydraulic speed control of each drive wheel is the most common method.

Both commercial duty and homeowner models exist, with varying engine power options, size of cutting decks, fuel type (gasoline or diesel), and prices. A z-turn mower typically drives faster and costs more than a similarly sized conventional riding mower that has steerable front wheels.

Most current models have four wheels: two small swiveling front tires and two large drive tires in the back. Instead of controlling the swiveling tires to steer the machine, the large drive tires rotate independently of each other based on the driver’s input.

They may rotate in opposite directions, which means that the mower can pivot around a point midway between the drive wheels (the classic z-turn), or it can pivot around either one of the drive wheels if one is stationary, or it can turn in a circle of any radius. Reversal of the direction of travel can be accomplished by causing both wheels to rotate in reverse.

Steering controls differ on z-turn mowers. Instead of a steering wheel, most z-turns have two throttles that control the rotational speed and direction of each drive wheel. The throttles are typically moved by a seated driver who operates levers mounted waist to shoulder high. The mower’s engine throttle is controlled separately, if at all. Some zero turn mowers are steered by a joystick or a steering wheel, the advantage of either one being the location of the hands may permit less fatigue during prolonged mowing and the use of a single hand for steering.

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One Comment on “What’s a Zero Turn Lawn Mower?

  1. Pingback: Designing Competing Mower | Lawn Mower Muffler

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