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Technical terms

  • Primer and Starter  Devices which facilitate cold starting of the engine. Specifically they enable the carburettor to be instantly filled with fuel ready for starting.
  • Anti-vibration system  Vibration damping system which completely isolates the handles from the rest of the tool for maximum user comfort, even during prolonged use.
  • Compression Wave Injection  Fuel injection method for two-stroke engines, whereby a compression wave is used to deliver a rich fuel mixture into the engine cylinder.
  • Safety Control system  Safety system on Multimate which stops the engine as soon as the operator tries to detach the implement from the drive unit.
  • Change Over system  System which enables the machine to be switched easily between the collection and mulching functions, by means of a handy lever.
  • Quick Fit system  System which allows quick attachment and removal of the cutting deck and other accessories in just a few minutes, without the need for tools.
  • Automat System  System which stops the blades when the collection bag is full.
  • Lift Starter  Device which automatically cuts off the starter when the accelerator is fully throttled.
  • Total Stop system  System switches off the motor when the flow of water through the wash lance is shut off.
  • Mulching cut  Cutting system which repeatedly chops up grass into fine particles and then scatters it evenly over the turf.
  • Turning radius  Radius or diameter of the arc-shaped path travelled by the front wheels with the steering wheel turned full lock.
  • Handgrip rotation  (180°, 90° clockwise and 90° anticlockwise) System which ensures maximum versatility of use, even close to walls.
  • Carving bar  Particularly useful for tending plants when a precise and deep cut is needed. The carving bar is specially designed for wood carving and sculpting.
  • Knob  Handgrip which enables the machine's cutting height to be altered.
  • Deck  Body of the lawnmower, can be made of plastic (propylene or ABS), steel or aluminium.
  • Variable speed control  System with enables the machine to operate over an infinite range of speeds, making it adaptable to any type of grass.
  • Voltage and frequency  Ratings within which the power supply must operate for the use of electrical appliances.
  • Cutting width  The cutting width depends on the cutting deck of the machine, in relation to the expanse of the area to be cut.
  • Bag  Recipient into which grass clippings are deposited. The width of the bag determines the collection capacity and the amount of time between emptying.
  • Propulsion  Can be push-type, for smaller areas, or self-propelled for larger areas.
  • Bearing  Mechanical device which reduces friction in the wheels. Wheels mounted on bearings ensure consistently smooth running, even over the most uneven terrain.
  • Bar and chain  These two components comprise the cutting apparatus of a chain saw: the toothed cutting chain slides along the guide bar.
  • Depth gauge  On chain saws, this device regulates the maximum cutting depth of the chain.
  • Inertia-activated chain brake  Stops the chain in the event of kickback. Activated manually by means of a lever, or automatically, when the front hand guard is pushed forward due to unexpected kickback.
  • Chain tensioner  Used after every 30 minutes of operation, enables the chain tension to be adjusted by means of a screwdriver, without disassembling any components. The correct tension is achieved when the chain can be raised a couple of millimetres away from the guide bar.
  • Self-cleaning filter  The special design of the air filter and corresponding mount reduces the need for maintenance.
  • Automatic oil pump with zero flow when idling  Actuated by means of the pinion, enables chain lubricant oil to be delivered only when cutting, thereby preventing waste and reducing pollution.
  • Cylinder  The cylinder is the component used to create linear motion; the area in which the combustion process takes place.
  • Piston  The moving component, housed inside the cylinder and connected by means of the gudgeon pin to the connecting rod, which forms a "mobile wall" of the combustion chamber.
  • Connecting rod  Part of the connecting rod-crank mechanism, e.g. the mechanism which enables alternate rectilinear motion to be transformed into continuous rotary motion.
  • Transmission  The set of components which transfer the power generated by the engine or motor to the wheels.
  • Digital coil  Generates high-voltage current, which when it reaches the spark plug creates the spark which triggers combustion.
  • Oil pump  Draws lubricant from the sump and sends it to pressurised components in the engine lubrication circuit.
  • Air filter  Component which protects the engine by preventing dust from entering the cylinders.
  • Crankshaft  A rotating mechanical shaft with a series of cranks which enables the movement of the connecting rods is transmitted to the power take-off.
  • Catalytic muffler  A device installed in the initial section of the exhaust system which drastically reduces the quantity of pollutants (carbon monoxide, hydrocarbons and nitrogen oxides) present in the combustion gases.
  • Bevel gear  A transmission system with helical gears which transfers movement to the cutting assembly, parallel to the ground, with suitable speed reduction.
  • Drive belt  A drive belt is a mechanical transmission component looped over pulleys which is used to provide an elastic but solid link between two rotating shafts.
  • Rotor  A component which rotates inside the stator and which transmits motion to electrical machines.
  • Lockable differential  The differential is a device which enables two wheels to move at different speeds. Locking the differential prevents one of the two drive wheels from spinning in the event that it temporarily loses grip.
  • Casing  Metallic enclosure which protects the engine components.
  • Handlebars  Leverage system which enables the equipment to be kept under control.
  • Power take-off  The power take-off or PTO consists of a connection at the back or front of the machine to which implements are attached.
  • Grease nipple  System which simplifies periodic replenishment of lubricant grease in the gearbox.
  • Reduction unit  Assembly used to transmit rotary motion with a reduction in the number of revolutions.
  • Fuel tank  Container for storing fuel inside the machine.
  • Starter rope handle  Handle connected to the recoil starter rope which is used to start the engine.
  • Carburettor  Mechanical part of internal combustion engines which blends air and fuel for injection into the combustion chamber.
  • Mixture  Mixture of lubricant oil and fuel which is usually used in two-stroke engines. This mixture is important because it lubricates the mechanical components of the engine and provides a source of energy.
  • Expansion clutch  Transmits movement to the cutting implement and also enables it to remain stationary at idling speed without having to stop the engine.
  • Dipstick  The dipstick, present in 4-stroke engines, is immersed in the oil and is used to check the level (MIN and MAX with graduated scale) and quality of the oil.

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