[Lawn Mower Maintenance]How to maintain the lawn mower in winter
How to maintain the lawn mower
Before each use of the mower, check the oil level to see if it is between the upper and lower marks on the oil dipstick. The oil should be changed after 5 hours of use for the new machine, and the oil should be changed again after 10 hours of use. After that, the oil should be changed regularly according to the requirements of the manual. The oil change should be done when the engine is warm. Do not add too much oil, otherwise there will be large black smoke, insufficient power (too much carbon deposition in the cylinder, small spark plug gap), and engine overheating. The oil filling should not be too small, otherwise, the engine gear will be noisy, the piston ring will be worn and damaged at an accelerated rate, and even lava will appear, which will cause serious damage to the engine. Pay attention to safety when using it.
So, check and test beforehand.
clean up
(1) should be replaced or washed in low or non-foaming detergent and warm water solution;
(2) thoroughly rinsed with running water from inside to outside until the water is clean;
(3) Stand upright and air dry.
Note: 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 oil on the paper core, and do not clean or dry the paper core with compressed air.
Protection of lawn mower after use
First, clean it all; second, check all screws, oil level, air filter , whether the blade is damaged, etc.; again, according to the service life of the lawn mower, strengthen the inspection or replacement of vulnerable parts. Periodic maintenance is more important.
Oil Maintenance
Always check the oil level before using the lawn mower to see if it is in the middle of the oil dipstick. The oil should be changed once in the first 5 hours, and once in the next 10 hours, and the oil should be changed frequently according to the situation. When changing the oil, the engine should be in a warm state, so that the old oil can be completely replaced. If the oil is too much, it will be difficult to start, or the black smoke is particularly large, or the power is small (too much carbon deposition in the cylinder, small spark plug gap), or the engine heat is too large. If the oil is too low, it will appear: the engine gear is noisy or damaged, or the plug ring is worn or damaged, or the lava phenomenon occurs, causing serious damage to the engine. Therefore, the maintenance of oil is very important.
Maintenance of carburetor
Every time you add gasoline, it should be filtered by a filter, and it should not be placed in the fuel tank for a long time, and the carburetor should be cleaned When the carburetor special cleaning agent is used, the cleaning cycle depends on the dirty degree of the carburetor. If the carburetor fails, the engine cannot be started or the flame is turned off immediately after starting, it should be cleaned.
Regular oil change
Oil change process: No oil change, should just stop the hot engine, remove the spark plug ignition wire and place the oil in the lower part of the cutter head Drain the oil from the oil drain hole of the bottom case. You can also open the oil filler port and tilt the machine to the left to drain the oil (the air filter must be on the upper part). Drain the oil, reconstitute, and refill with suitable oil to the specified scale. The oil change interval is usually every 5 to 8 months.
The new lawn mower should be changed after 5 hours of operation for the first time, and every 30-50 hours thereafter. The standard oil replacement is 50w in summer and 5-30w in winter. The oil change should be done just after the hot engine stops. After removing the spark plug ignition wire, drain the oil immediately, restore it, and add the appropriate oil to the specified scale.
Note: The waste oil discharged should be kept well and should not pollute the environment.
The pollution of waste oil to the environment is shocking: The treatment of waste mineral oil mainly adopts two technologies: molecular distillation and membrane filtration. These two kinds of local oil refining will produce heavy metal waste residue, waste water and waste gas. The black oil plant is arbitrarily landfilled and discharged during the disposal process, which will cause great environmental pollution. The waste water produced by refining 1 ton of waste oil can pollute 1 million tons. groundwater. Simply terrifying. In addition, this treatment method is flammable and explosive in the production process, and is prone to safety accidents. These illegal use of waste oil products into the market, 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, it is necessary to dig deep and remove all the contaminated soil. If it penetrates into groundwater, the consequences will be disastrous; if it is not handled properly, 1 kilogram of waste oil can pollute 1,000 tons of clean water, which is equivalent to the amount of drinking water for 7 people a year.
The function of the correct grade of mower oil on the machine is to lubricate, cool down, clean, and strengthen the piston seal. After the machine has been used for a period of time, as the dust in the air enters and the metal chips worn by the machine enter the oil and the oil is heated and moved, various performances of the machine will decline, reduce the service life of the machine, and even cause tile holding, cylinder pulling, continuous operation. Accident of broken rod. Therefore, the oil should be replaced according to the prescribed time limit specified in the manual to ensure the normal use of the machine.
The role of oil change:
With the entry of dust in the air and the metal chips worn by the machine entering the oil and the oil being heated and moving, its performance If the oil is not replaced in time, it will accelerate the wear of the machine, and even cause accidents such as holding the shoe, pulling the cylinder, and breaking the connecting rod. Therefore, the oil must be changed regularly according to the instructions to ensure the normal use of the machine.
Maintain the air filter element
The air filter element is to prevent dust and sundries from entering the cylinder body. When the machine is in use, the dust in the air pump will be deposited on the air filter element. The intake air volume is reduced and the combustion mixing ratio is increased, resulting in incomplete combustion and reduced power. Long-term work in this way will produce carbon deposits, aggravate the wear between the cylinders and pistons, and the carbon deposits will fall into the cylinders. Power is lost. The air 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 be cleaned frequently to ensure its heat dissipation effect. Otherwise, it will also increase the wear and tear of the machine.
Treatment filter element
The air filter element is to prevent dust from entering the cylinder block and prevent the premature wear of machine parts caused by dust entering the cylinder block. It should be cleaned and replaced regularly. Working for a long time will produce carbon deposits, which is very unfavorable for the treatment of the filter element, will increase the wear and tear of the machine, and affect the work efficiency.
Winter Mower Maintenance:
When winter mowers are stored for more than 30 days:
First, drain the fuel in the fuel tank, and start the gasoline engine until it stops due to the exhaustion of fuel;
Secondly, in the warm engine state just stopped, first drain the oil in the crankcase, Then add new oil to the appropriate scale according to the recommended grade;
Third, remove the spark plug, drop 5-10 ml of oil into the cylinder block, turn the crankshaft several times, and install the spark plug;
Fourth, clean the dust and debris around the cutter head, body, cylinder block, cylinder head heat sink, air guide, grille and muffler
Fifth, it should be stored Place on the ground level and cover the mower with a cloth to prevent dust from falling in.
Sixth, clean the mower thoroughly. Before leaving the mower idle for a long period of time in winter, the bottom of the mower, deck and fuel tank cover should be thoroughly cleaned to prevent residual weeds and mud from eroding the agricultural machinery. Before cleaning, remove spark plugs and openers, and use hoses, putty knives, and car wash to remove built-up impurities from the landing gear and deck. Use a brush to remove deposits from the mailbox vents to avoid blocking the vents.
Seventh, remove oil stains. If the oil stains are in contact with the equipment for a long time, a chemical reaction will occur, causing the paint on the surface of the equipment to peel off, so it needs to be removed in time. When removing oil stains, first spray the degreaser on the oil stained parts of the equipment, let it stand for 10-15 minutes, then wipe it off with a towel, and finally rinse it off with water.
Eighth, prevent rust on the exposed parts of the lawn mower. The exposed parts of the lawn mower can be sprayed with lubricant to prevent rusting. Store the mower in a dry place.
Ninth, check the wearing parts regularly. Develop the habit of regularly checking vulnerable parts and replace damaged parts in time, which can not only improve the working performance of the lawn mower, but also eliminate potential safety hazards.
Maintenance of each part
The brush cutter is a two-stroke power, so attention should be paid to the power, transmission and tools during use to ensure the normal use of the machine:
1. Engine
◆The engine is a two-stroke engine, and the fuel used is a mixture of gasoline and engine oil. The mixture ratio is: Two-stroke special engine oil: gasoline=1: 50. The gasoline should be No. 90 or above, and the oil should be two-stroke engine oil with the symbol 2T. Be sure to use brand-name engine oil. It is best to use special engine oil. It is strictly forbidden to use four-stroke engine oil. It is recommended that the new machine should be equipped with 1:40 in the first 30 hours, and the normal ratio of 1:50 after 30 hours. It is absolutely not allowed to exceed 1:50, otherwise the concentration will be too thin, which will cause the machine to pull the cylinder. Please dispense oil strictly according to the oil dispenser attached to the machine, and do not dispense oil at will. It is best to use the mixed oil immediately. It is strictly forbidden to use the mixed oil that has been used for a long time;
◆Before the machine works, run the machine at low speed for a few minutes before working. When the machine is working, the accelerator can be used at high speed normally. After working a tank of oil, you should rest for 10 minutes, and clean the heat sink of the machine after each work to ensure heat dissipation;
◆The spark plug should be removed every 25 hours of use, and the dust on the electrode should be removed with a wire brush It is better to adjust the electrode gap to 0.6-0.7mm;
◆The air filter should remove dust every 25 hours, and the dust should be more frequent. The cleaning of the foam filter element is to use gasoline or washing liquid and water to clean, squeeze to dry, then soak in the oil, squeeze out the excess oil, and then install it. If “DON NOT OIL” is printed, do not need to add oil;
◆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 (oil suction head) removes impurities every 25 hours.
Second, the transmission part
Supplement the grease to the reduction box (working head) every 25 hours, and at the same time combine the upper part of the transmission shaft with the clutch disc Add grease to it.
Three, the tool part
The length of the nylon cable head should be controlled, not more than 15 cm. The blade must be installed correctly and pay attention to balance.
4. Safety in use
Before operation, check whether all parts of the lawn mower are securely installed, and no people or animals are allowed to move around within 20 meters. 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 must be released, and the fuel in the carburetor must be burned; Add 1-2ml two-stroke engine oil, pull the starter 2-3 times, and install the spark plug.
6. Precautions for oil filling
The oil lubricates all parts of the machine in the cylinder block, and it is Splash the oil to clean, lubricate and cool down all parts of the machine. If too much oil is added, it will cause a lot of emulsification and air bubbles. Raise the temperature of the cylinder. Therefore, the lawn mower should not be overfilled with oil during use.
