The Function and Maintenance of Hedge Trimmers

hedge trimmer

The hedge trimmers we often refer to are agricultural machinery that rely on gasoline as the power to drive the blades to cut and rotate, including gasoline hedge trimmers and electric hedge trimmers. Its structure includes starting rope, engine cover, exhaust pipe cover, exhaust pipe, fuel tank, filter, carburetor, cylinder body, piston ring, piston, gearbox, etc.

Hedge trimmers can be used for both greening and maintenance, as well as for pruning tea trees and landscaping. They are one of the most commonly used tools in landscaping projects. Hedge trimmers have many advantages such as simple operation, low noise, and lightweight, and are deeply loved by users.

When will you use a hedge trimmer?

Hedge trimmer, also known as hedge trimmer, is a portable gardening tool for single person use, suitable for professional pruning of tea leaves, parks, courtyards, roadside hedges, and other landscaping and greening aspects. Hedge trimmers can pull out flat and sloping surfaces according to homework requirements, and trim them into special shapes such as square, circular, trapezoidal, cartoon character shapes, and various pattern shapes. The trimmed garden vegetation cut is flat and beautiful. Hedge trimmers are very suitable for use in households, property communities, landscaping, vegetation maintenance, and more.

The working principle of hedge trimmers

The principle of a hedge trimmer is as follows: when the hedge trimmer is activated, the power generated by gasoline combustion is transmitted to the blade through the transmission mechanism, thereby driving the blade for trimming. During operation, the operator selects the gripping method, rotation angle, and extension length of the handle according to needs and usage habits. The main handle is connected to the machine body through an extension rod, and the connection between the main handle and the extension rod is connected through a rotating mechanism.

How to choose a hedge trimmer

When choosing a hedge trimmer, it is generally recommended to first select the product type, then choose a good hedge trimmer brand, check the product parameters, and if conditions permit, go to an offline physical store to check the product quality before making a purchase. When making a purchase, attention should also be paid to:

  • Check the material of the blade, preferably products made of steel, with strong hardness, thickness, and rust prevention treatment. Rotate the blade by hand and ensure that there is no up and down oscillation or abnormal noise.
  • Inspect the appearance and ensure that the overall surface is smooth, free of burrs, oxidation, comfortable to the touch, with no notches on the cutting edge, and that the coating surface is free of rust, bumps, or leakage.
  • Test whether the work switch is smooth and effortless to operate, and the level of noise during operation.
  • When purchasing a hedge trimmer, it is also important to check the validity period of the after-sales guarantee, product list, manual, warranty form, and other aspects, and to request a formal invoice.

Steps for using hedge trimmers

  • Turn off and cool the hedge cutter engine, mix unleaded gasoline and engine oil in a ratio of 25:1 by volume, and inject the oil into the fuel tank.
  • Turn the circuit switch to the "ON" position, close the damper lever, press the carburetor pump ball until there is fuel flow in the return pipe.
  • Pull up the power cord 3 to 5 times, start the hedge cutter, move the throttle lever to the half open position, let the engine idle for 3-5 minutes, then move the throttle lever to the "ON" position, and the engine will work normally at the rated speed.
  • When using a hedge trimmer to trim a hedge, it should be kept smooth and neat, with consistent height and a downward slope of about 5-10° for trimming. This is more labor-saving, lightweight, and can improve the quality of trimming.
  • When operating, the operator's body should be on the side of the carburetor, and it is not allowed to be on one end of the exhaust pipe to avoid being burned by exhaust gas. Adjust and control the throttle according to work needs to avoid excessive speed.
  • After trimming, stop the machine, turn off the throttle, and clean the outer shell.

Precautions for using hedge trimmers

  • The use of hedge trimmers poses certain risks, and operators should follow the instructions in the product manual and pay attention to wearing certain protective equipment;
  • Do not use hedge trimmers when fatigued or feeling unwell; The continuous operation time of the hedge trimmer should not exceed 40 minutes each time;
  • Hedge trimmers cannot be used for other purposes;
  • Hedge trimmers should be avoided in poorly ventilated areas such as indoors, in greenhouses, or in tunnels;
  • Regular maintenance and upkeep should be carried out on the hedge trimmers.

Hedge trimming and maintenance

hedge trimmer
  • After using the hedge trimmer for 40 hours, it is necessary to check if the screws are loose. If they are loose, tighten them immediately to avoid situations such as blade detachment, which may threaten the user's personal safety.
  • Regularly check the gap between the upper and lower blades of the blade and adjust it in a timely manner to maintain a sharp edge. The maintenance of the blade should be done regularly to remove dust and dirt from the blade; Oil should be added to the blade every hour of operation to ensure its lifespan.
  • Spark plugs also need to be inspected regularly. Damaged spark plugs can cause faults such as insufficient engine power, difficulty starting, or idling, and in severe cases, may even cause fires. Therefore, it is necessary to regularly inspect the spark plugs of the hedge cutter and carry out maintenance work.
  • The gasoline hedge cutter should regularly remove dust attached to the air filter. When not in use, the air filter damper should be adjusted to the choke position to prevent dirt from entering the intake pipe and affecting subsequent use.
  • In addition, the service life of the hedge trimmer is specified. Even if it is well maintained in daily life, once it exceeds its service life, the failure rate will continue to rise. Therefore, when the hedge trimmer reaches its service life, it is important to remember to replace it in a timely manner.

Common faults and maintenance of hedge trimmers

Hedge cutting difficult to start

There are many reasons why the hedge trimmer cannot start, usually due to oil blockage or circuit failure. What should be done if the hedge trimmer cannot start? If the oil circuit is blocked, check the spark plug, air filter, carburetor, cylinder block, etc. in sequence. It is recommended that if the machine is not used for a long time, pour out the oil in the tank, start the machine, and burn all the oil in the carburetor and cylinder to avoid residual oil blocking the carburetor.

Worn hedge scissors

If the blade of the hedge trimmer is not properly maintained or used for a long time, it is easy to have blade wear, which affects normal trimming work and even cannot be trimmed. What should be done if the blade of the hedge trimmer is worn? The general handling method depends on the degree of blade wear. If the blade becomes dull or slightly worn, it only needs to be polished before use. If the blade is severely worn, it needs to be replaced with a new one.


Request For Quotations

    Details of Order Requirements* :

    Get the latest updates!