50cc Gas Brush Cutter 4 Stroke GX50 Low consumption Easy start Brush Cutter

3、 What are the failure reactions of the engine if the oil is changed irregularly?

As the working time of the engine increases, the amount of dissolved waste in the engine oil will gradually increase, and the color of the engine oil will gradually deepen to black, resulting in a decrease in lubrication function. If the oil is changed irregularly, the lubrication function of the oil will gradually decrease, leading to excessive oil consumption, premature engine wear, loss of power, until the connecting rod breaks and the engine is scrapped. The oil change time should be 50 hours. If the engine operates in a high temperature or dusty environment, the oil change time should be around 25 hours, or it can be determined by the color of the oil in the oil chamber.

4、 Why does the oil need to be changed regularly?

The correct grade of engine oil for lawn mowers is used for lubrication, cooling, cleaning, and strengthening piston seals. After using the machine for a period of time, as the dust in the air enters and the metal debris worn by the machine enters the oil and the oil is heated and moves, its various performance will decline. If the oil is not replaced in time, it will accelerate the wear of the machine, reduce its service life, and even cause accidents such as bearing, cylinder pulling, and connecting rod breakage. Therefore, the oil should be replaced according to the specified period in the manual to ensure the normal use of the machine.

5、 Frequent oil changes still cannot maintain the purity of the oil, why?

A regular lawn mower needs to be replaced with oil after running for about 20-25 hours. Due to the high viscosity of the oil at room temperature, it must be replaced in a hot engine state to ensure that the oil is completely replaced. The common problem mentioned above is that the oil has not been replaced in the hot engine state, and the waste oil has not been completely drained. Even if new oil is added, it is still contaminated by the residual waste oil in the cylinder block. Therefore, oil replacement should be carried out in the hot engine state.

6、 Why do lawn mowers use high throttle when cutting grass?

The rotary lawn mower relies on the high-speed rotation of the blade to cut grass. If the linear speed of the blade tip is not enough, the cutting effect is not good. So, when cutting grass, use high throttle and high RPM. In addition, the vaporizer and automatic speed control device of the lawn mower make its fuel consumption not high even when there is no load at high throttle. Only when it is under load, its speed will reach 2800 rpm from 3400 rpm without load. Therefore, there is no need to use a small throttle to save fuel, and the lawn mowing effect is not good.

7、 How to clean the air filter of a lawn mower?

The foam filter element shall be cleaned every 25 hours, and the dust shall be more frequent.

Clean the foam filter element with kerosene or detergent and clean water, squeeze it to dry, then soak it in engine oil, squeeze out the excess engine oil and install it. If it is printed with "DONNOTOIL", there is no need to add oil.

Paper filter cartridges should be cleaned every 25 hours, and more frequently when there is heavy dust.

Clean the front filter every 25 hours with a front air filter, and clean the paper core every 100 hours. When there is a lot of dust, it should be more frequent.

The cleaning of the front air filter is the same as that of the foam filter element.

Paper filter cartridges should be lightly tapped on a flat surface. If it is very dirty, it should be replaced or cleaned in low or no foam detergent and warm water solution; Rinse thoroughly with running water from inside out until the water is clean; Stand upright and air dry.

Attention: Do not use petroleum solvents, such as kerosene, to clean the paper core. As it may cause the paper core to deteriorate, do not put engine oil on the paper core, and do not use compressed air to clean or dry the paper core.

8、 Why do we need to regularly clean and replace the lawn mower air filter?

The air filter element is designed to prevent dust from entering the cylinder block and prevent premature wear of machine parts caused by dust entering the cylinder block. It should be cleaned regularly and replaced on a regular basis. The dust extracted during the use of the machine will deposit on the air filter element, reducing the intake volume and increasing the combustion mixing ratio, resulting in incomplete combustion and reduced power. Prolonged operation in this way will produce carbon deposits, exacerbating wear between the cylinder body and pistons. Carbon deposits falling into the cylinder body will cause cylinder pulling and loss of machine power. The air filter should be cleaned and replaced in a timely manner to ensure the normal operation of the machine. At the same time, the outer wall of the machine cylinder should be cleaned regularly to ensure its heat dissipation effect. Otherwise, it will also exacerbate machine wear and tear.