Common Faults and Maintenance Methods of Brush Cutters

Brush cutters are commonly used tools by garden technicians, and various problems will inevitably be encountered during use. When the brush cutter is difficult to start, it is necessary to comprehensively analyze and investigate the three aspects of oil, gas, and electricity. Today, you will introduce several common faults and maintenance methods of cutting and irrigation machines.

1. The brush cutter engine is difficult to start, the reasons are as follows:

a. No gasoline - the solution is to add gasoline.

b. Spark plug wire is broken - the solution is to connect the spark plug wire.

c. The throttle switch is not in the start position - the solution is to turn the throttle switch to the maximum.

d. The oil circuit is blocked - the solution is to clean the oil circuit.

e. Ignition misalignment - solution to correct ignition timing.

f. Damaged spark plugs - the solution is to replace the spark plugs with new ones.

g. Use inferior or spoiled gasoline - the solution is to choose the right brand of gasoline.

2. The blockage of the air filter can easily cause difficulty in the air intake and affect the start of the brush cutter. Therefore, brush cutters should frequently clean or replace the air filter, use qualified gasoline, and adjust the spark plug gap and engine.

3. The trimming is uneven and has no smoothing effect, which is generally caused by the dullness of the blade. Therefore, the blade of the brush cutter is generally polished once after ten days of use, while the polishing frequency of the cutting edge of the hob can be extended to once every three months.

4. If the brush cutter vibrates or vibrates violently during work, it may be that some hard objects are encountered during the mowing process, and the blade is curled and deformed, causing the brush cutter to shake. Also, top-heavy blades can cause the mower to wobble. Therefore, the blade of the brush cutter needs to be sharpened to the left and right. Pay attention to the lawn when using it, and try to avoid hard objects.

5. When the brush cutter is weak and cannot cut grass, the clutch needs to be replaced.

6. If the muffler of the brush cutter engine emits smoke, it may be caused by the excessive mixing ratio of intake air combustion. At this point, the air filter must be cleaned or replaced with a new one. If the problem persists, clean and adjust the brush cutter's engine carburetor, generally just drain the excess oil and run it for ten minutes. If the fault still exists at this time, you need to find a maintenance person to overhaul the engine.

7. When the brush cutter starts, the pull-rope springs back, which is mainly caused by the advanced ignition time. In addition, it may also be caused by the blade hitting a hard object during mowing and cutting the flywheel key.

8. At present, there are two oil supply methods for brush cutters. One is a two-stroke brush cutter that uses a blend of oil (95% gasoline plus 5% oil), and the other is a four-stroke brush cutter that uses pure gasoline and four-stroke cutting. The brush cutter should always check whether the oil is reduced, and if it is less, top up the oil to protect the brush cutter.

9. In addition, everyone should pay attention to the brush cutter resting for 10 minutes every two hours to prolong the service life.

The above introduces the common faults and solutions of brush cutters. If you want to buy lawn mower parts, please contact us.

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