The lawn mower is widely used, but if we want it to have a longer service life, we need to do maintenance and maintenance. So how do you maintain and maintain it? Today, the editor will share this knowledge with you.
How to maintain lawn mower
Every time before using the lawn mower, check the oil level to see if it is between the upper and lower scales of the oil scale. The new machine should be replaced after 5 hours of use. After 10 hours of use, the oil should be replaced again. Afterwards, the oil should be replaced regularly according to the instructions. The oil change should be performed while the engine is hot. Do not add too much oil, otherwise it will appear: black smoke, insufficient power (too much carbon deposit in the cylinder, small spark plug gap), engine overheating and other phenomena. Do not add too much oil, otherwise it will appear: the engine gear is noisy, the piston ring wears out and damages accelerated, and even the phenomenon of lava appears, causing serious damage to the engine. Pay attention to safety when using.
Therefore, check and test in advance. ： Comb-tooth rotating bevel gear speed-increasing transmission mechanism and comb-tooth profile depth-adjusting device group; front and rear shafts directly driving the front and rear shafts driven by the ground wheels supported by the bearing seats under the beams on both sides of the frame, driving the bevel gear speed-increasing transmission mechanism, front and rear The axial centerline of the comb teeth is located directly above the longitudinal direction of the big stubble or the small stubble, and each can be configured with 6 to 10 groups; the left and right single-wing weeding shovel and the comb teeth are correspondingly arranged on the front beam; use this This kind of structured weeding machine improves the efficiency by 8 to 10 times compared with artificial weeding, and has a low injury rate and a general cleaning rate.
Foam filter element should be cleaned every 25 hours, the dust should be more frequent.
Foam filter element is cleaned with kerosene or washing liquid and water, squeezed to dry,
The paper filter element is cleaned every 25 hours, and the dust is more frequent.
Clean the front filter every 25 hours with the front air filter, and clean the paper core every 100 hours. It should be more frequent when the dust is heavy. The cleaning of the front air filter is the same as the foam filter element. The paper filter element should be tapped on a flat surface.
Clean up the dirt
(1) Should be replaced or cleaned in low or no foam detergent and warm water solution;
(2) Rinse thoroughly with running water from the inside back until the water flow is clean;
(3) Stand upright and air dry.
Note: Do not use petroleum solvents, such as kerosene, to clean the paper core. Because it may cause the paper core to deteriorate, do not put oil on the paper core, and do not use compressed air to clean or dry the paper core.
Protection after using the lawn mower
First, clean it all; second, check all screws, oil level, air filter, blades for defects, etc .; again, for the service life of the lawn mower, strengthen the inspection or replacement of vulnerable parts. Periodic maintenance is more important.
Maintenance of engine oil
Every time before using the lawn mower, check the oil level to see if it is in the middle of the oil scale. The engine oil should be changed once in the first 5 hours, once every 10 hours, and then changed frequently according to the situation. When changing the oil, the engine should be in the hot state so that the old oil can be completely replaced. If there is too much oil, it will be difficult to start, or the black smoke is particularly large, or the power is small (too much carbon deposits in the cylinder, the spark plug gap is too small), or the engine heat is too large. If there is too little oil, it will occur: the engine gear is loud or damaged, or the closing ring is worn or damaged, or the pull-out phenomenon occurs, causing serious damage to the engine. Therefore, the maintenance of engine oil is very important.
Carburettor maintenance
Each time you add gasoline, there should be a filter screen, and can not be placed in the fuel tank for a long time. Carburetor special cleaning agent should be used when cleaning the carburetor. If the carburetor fails, the engine cannot be started or the engine is immediately turned off after being started, it should be cleaned.
Periodic oil change
The process of changing oil: no oil replacement, just stop the heat engine, remove the spark plug ignition line and put oil in the oil drain hole of the oil pan under the cutter head, you can also open the oil port and tilt the machine to the left To be in the upper part). Put the oil clean, restore, and re-apply the appropriate engine oil to the specified scale. The oil change cycle is generally changed every 5 to 8 months.
The new lawn mower should be replaced after 5 hours of operation for the first time, and every 30-50 hours thereafter. The standard for oil replacement is 50w in summer and 5-30w in winter. The oil should be replaced immediately after the heat engine is stopped. After removing the spark plug ignition line, the oil should be cleaned and restored immediately, and the appropriate oil should be added to the specified scale again.
Note: The waste oil discharged should be preserved and should not pollute the environment.
The pollution of waste engine oil to the environment is shocking: the treatment of waste mineral oil mainly uses molecular distillation and membrane filtration technologies. These two indigenous methods of oil refining will produce heavy metal waste residues, wastewater, and waste gas. The black oil plant will arbitrarily landfill and discharge during the disposal process, which is extremely polluting to the environment. groundwater. It was terrifying. In addition, this treatment method is flammable and explosive during its production process, and is prone to safety accidents. These illegal use of waste oil products into the market, and will harm the interests of consumers. According to the environmental protection department, once the waste mineral oil seeps into the soil, the soil cannot be repaired for decades. To eradicate pollution, you must dig deep and remove all contaminated soil. If it seeps into groundwater, the consequences are unimaginable; if not handled properly, 1 kg of waste engine oil can contaminate 1,000 tons of clean water, which is equivalent to 7 people a year of drinking water.
The function of the correct grade of mower oil on the machine is: lubrication, cooling, cleaning, and strengthening the piston seal. After the machine is used for a period of time, as the dust in the air enters and the metal scraps worn by the machine enter the engine oil and the engine oil is heated and moved, its various performances will decrease, reducing the service life of the machine, and even causing the holding tiles, cylinders, Accident of broken rod. Therefore, the oil should be replaced within a fixed period according to the instructions to ensure the normal use of the machine.
The role of oil change:
As the dust in the air enters and the metal scraps from the machine wear into the oil and the oil is heated and moved, its performance will decline. If the oil is not replaced in time, it will accelerate the wear of the machine and even cause the holding tile, cylinder, and even Accident of broken rod. Therefore, the oil must be changed regularly in accordance with the instructions to ensure the normal use of the machine.
Maintain the air filter
The air filter is to prevent dust and debris from entering the cylinder. When the machine is used, the dust in the air pump will be deposited on the air filter, which reduces the air intake and increases the combustion mixing ratio, resulting in incomplete combustion and reduced power. It will produce carbon deposits and aggravate the wear between the pistons of the cylinder block. If the carbon deposits fall into the cylinder block, the cylinder will be pulled and the power of the machine will be lost. The empty filter element should be cleaned and replaced in time to ensure the normal operation of the machine. At the same time, the outer wall of the machine cylinder should also be cleaned frequently to ensure its heat dissipation effect. Otherwise, it will also increase machine wear.
Treatment filter
The air filter element is to prevent dust from entering the cylinder, and to avoid premature wear of machine parts caused by dust entering the cylinder. It should be cleaned and replaced regularly. Working for a long time will produce carbon deposits, which is very unfavorable for the treatment of filter elements, it will aggravate the wear of the machine and affect the working efficiency.
How to maintain lawn mower:
Winter lawn mower storage for more than 30 days:
First, drain the fuel in the fuel tank and start the gasoline engine until it shuts down due to exhaustion of fuel;
Secondly, just in the hot engine state just stopped, first release the oil in the crankcase, and then add new oil to the appropriate scale according to the recommended grade;
Third, remove the spark plug, drip 5-10 ml of engine oil into the cylinder, turn the crankshaft several times, and install the spark plug;
Fourth, clean the dust and debris around the cutter head, body, cylinder, cylinder head fins, air hood, grille and muffler
Fifth, it should be placed horizontally on the ground during storage and covered with a cloth to prevent dust from falling into it.
Sixth, thoroughly clean the lawn mower. Before leaving the lawnmower for a long time in winter, the bottom, deck and fuel tank cover of the lawnmower should be thoroughly cleaned to prevent the remaining weeds and mud blocks from eroding the agricultural machinery. Before cleaning, remove the spark plug and opening device, and use hoses, putty knives, car cleaner to remove accumulated impurities from the landing gear and deck. Use a brush to remove the deposits on the ventilation holes of the mailbox to avoid blocking the ventilation holes.
Seventh, remove oil stains. Long-term contact of the oil stains with the equipment will cause a chemical reaction, which will cause the paint on the surface of the equipment to peel off, so it needs to be removed in time. When removing oil stains, spray the degreaser on the equipment with oil stains, let it stand for 10-15 minutes, then wipe it off with a towel, and finally rinse it off with water.
Eighth, prevent the rust of the exposed part of the lawn mower. Lubricant can be used to spray the exposed part of the lawn mower, which can effectively prevent rust. Store the lawn mower in a dry place.
Ninth, regularly check the vulnerable parts. Cultivate the habit of regularly checking the vulnerable parts, and replace damaged parts in time, which can not only improve the performance of the lawn mower, but also eliminate potential safety hazards.
Maintenance of each part
The brush cutter is a two-stroke power, and attention should be paid to the power, transmission and cutting tools during use to ensure the normal use of the machine:
1. Engine
◆ The engine is a two-stroke engine. The fuel used is a mixture of gasoline and engine oil. The ratio of the mixed oil is: special oil for two strokes: gasoline = 1:50. For gasoline, use No. 90 or above, use two-stroke motor oil, and the symbol is 2T. You must use brand-name motor oil. It is best to use special-purpose motor oil. Four-stroke motor oil is strictly prohibited. It is recommended that the new machine be equipped with 1:40 in the first 30 hours and 1:50 in the normal ratio after 30 hours. Do not allow more than 1:50, otherwise the concentration will be too thin and will cause the machine to pull the cylinder. Please distribute the oil strictly according to the oil distribution pot attached to the machine, and do not arbitrarily distribute the oil according to the estimate. The mixed oil is best to be used now, and it is strictly prohibited to use the mixed oil for a long time;
◆ Before the machine works, run at low speed for a few minutes and then work. When the machine is working, the throttle can be used normally at high speed. After working a box of oil, you should rest for 10 minutes. Clean the heat sink of the machine after each work to ensure heat dissipation;
◆ Remove the spark plug every 25 hours of use, use a wire brush to remove the dust on the electrode, and adjust the electrode gap to 0.6-0.7mm;
◆ The air filter removes dust every 25 hours of use, and the dust should be more frequent. The foam filter element is cleaned with gasoline or washing liquid and clean water, squeezed to dry, then soaked with engine oil, and squeezed to remove excess engine oil to install. No oil is required if “DONNOTOIL” is printed;
◆ When the muffler is used for 50 hours, remove the muffler and clean the carbon deposits on the exhaust port and muffler outlet.
◆ The fuel filter (suction head) removes impurities every 25 hours.
Second, the transmission part
Replenish the gearbox (working head) with grease every 25 hours, and add grease to the joint between the upper part of the drive shaft and the clutch plate.
3. Tool part
Nylon cable head should control its length, not more than 15 cm. The blade must be installed correctly, and pay attention to balance.
4. Safe to use
Check whether the components of the lawn mower are firmly installed before operation, within 20 meters around, no people or animals are allowed to move around. Be sure to check the grass for debris such as angle iron, stones, etc., and remove the debris on the grass.
V. Storage
During storage, the body must be cleaned, the mixed fuel should be released, and the fuel in the carburetor should be burned off; remove the spark plug, add 1-2ml of two-stroke oil to the cylinder, pull the starter 2-3 times, and install the spark plug
VI. Notes on filling oil
The engine oil lubricates all parts of the machine in the cylinder, which is constantly splashed by the action of the engine oil splash wheel to clean, lubricate, and cool down the machine parts. If too much oil is added, it will cause A large amount of emulsification and air bubbles can not splash the engine oil at the same time, which can not play the role of lubrication and increase the temperature of the cylinder. Therefore, the mower must not be filled with too much oil during use.
Daily maintenance
Every day after the operation, the machine should be maintained daily, that is, technical maintenance of the shift, including: removing dust, weeds, oil and other dirt, and performing a comprehensive cleaning of the machine; checking the engine oil level, the inspection steps are: First remove the lubricating oil filler cap and wipe off the oil scale; insert the oil scale into the fuel port again, and then pull out, observe the oil level of the engine, according to the operation manual, if necessary, add lubricating oil that meets the requirements. Change the oil in strict accordance with the instructions, always check the condition of the spark plug, and clean the surface stains before storing for a long time.
Forage harvesting operation environment is poor, and the air filter should be cleaned 1-2 times a day according to the conditions of the operation plot to keep the filter clean. The operation method is: first clean the appearance of the air filter, unscrew the air inlet screw, wipe off the debris dust in the air inlet, the filter element of the air filter is installed at the lower part of the filter, and the filter element box is outside, screw Open the fastener, take out the filter element, wipe off the external dirt, then take a small amount of clean diesel oil, use a brush to dip the diesel oil to clean the filter element, wipe the filter element box clean, add an appropriate amount of engine oil to the filter element box, and then install the filter element in order. Install the fasteners and tighten the screws on it.
Check and maintain the cutting knife. The cutting knife is also a wearing part. Check the condition of the cutting knife after every day of operation. Unscrew the cutting knife to see if it is damaged. When the cutting edge is damaged, you can use an ordinary grinding stone to polish If the blade is seriously damaged, the blade should be replaced. Then reinstall the blade on the cutting table and tighten the screws.
Careful daily maintenance can ensure that the lawnmower has fewer failures during operation and improves operation efficiency.
