Chainsaw, a portable saw powered by a gasoline engine, is mainly used for logging and lumber making. Its working principle is to perform cutting action by the lateral movement of the interlaced L-shaped blades on the saw chain. Chainsaw is a kind of demolition equipment, which can be divided into motorized chainsaw, non-motorized chainsaw, concrete chainsaw and so on according to the function and driving mode. If the chain saw works for too long, it is easy to cause wear and tear, so how should we maintain the chain saw?
The correct way to use a chainsaw
1. Before the chain saw works, let it run at a low speed for a few minutes, and see that the chain saw lubricating saw chain oil weighs an oil line before starting to work. When working, the accelerator can be set to use at high speed. Every time a tank of oil is finished, it is necessary to rest for a period of time, roughly 10 minutes. After the work is completed, the heat sink of the chain saw needs to be cleaned to ensure the normal heat dissipation of the machine.
2. The air filter of the chain saw needs to be dedusted every 25 hours. If you encounter special circumstances, you can adjust it yourself. The foam filter element can be cleaned with washing liquid or gasoline, and then washed with clean water, squeezed to dry, then soaked in engine oil, squeezed out the excess oil and then installed.
3. When using a new chainsaw, pay attention to the tightness of the saw chain so as to be able to push the saw chain to rotate. Use the hand-held saw chain. The guide teeth are parallel to the guide plate. After using it for a few minutes, pay attention to observe again, and repeat this several times .
When using a chainsaw, ensure that there are no creatures within 20 meters around, and check whether there are hard objects, stones, etc. on the grass to ensure safety. When the chainsaw needs to be left unused, clean the machine body, release the mixed fuel, and burn out the fuel in the carburetor; remove the spark plug, add 1-2ml of two-stroke engine oil to the cylinder, pull the starter 2-3 times, install Put on the spark plug.
Check the cause of the problem with the chainsaw
1. Check the oil circuit and circuit, see if the oil filter is blocked, whether the carburetor pumps oil normally, whether the spark plug has electricity, remove the spark plug and put the top on the metal, and pull the machine to see if the spark plug has electricity of.
2. Remove the air filter and check whether the air filter is clean by the way.
3. Remove the carburetor, then pour some oil into the cylinder, and then start the machine a few times. If not, you have to wash the carburetor or replace it, and finally check the cylinder block. Teach you a way to maintain the machine, if you do not use the machine for a long time in the future, pour out the oil in the fuel tank. Start the machine to burn out the oil in the carburetor and cylinder. To prevent residual oil from clogging the carburetor, clean the air filter more often, and use lubricating oil with better lubricating effect.
Step 1: We will directly manually pull the chainsaw to see the overall operation status. At this time, we can judge according to the obtained information: whether there is a stuck cylinder (experienced people can directly judge whether there is compression and cylinder pull), whether there is any difference Noise (you can judge whether the magnetic flywheel and crankshaft are damaged), whether there is a problem with the starter assembly. And replace or maintain parts according to the relevant conditions.
The second step: identify the circuit. Remove the spark plug (the spark plug is under the air filter cover), check whether the spark plug has carbon deposits and whether the contact is normal. Make the discharge part of the spark plug contact the cylinder or the conductive part with the crankcase, and pull the chain saw. At this time, you can check the circuit, such as whether there is electricity, the size of the electricity and whether the discharge distance is stable. This step can check whether the spark plug, coil and igniter are normal.
Step 3: Block the inside of the spark plug of the cylinder with your fingers, and pull the pull plate to check whether the cylinder is pulled. Or remove the muffler, and check from the cylinder muffler to see if the piston has pull marks from the cylinder.
Step 4: Check the oil circuit. Remove the carburetor and clean it, and adjust the carburetor pointer properly according to the condition. Unscrew the fuel cap and check the fuel filter. And check the oil pipe, intake pipe, etc. for damage.
