Small tricks of the Chinese chainsaw / leaking OIL HOW TO REMOVE
The disassembly and correct assembly of the oil pump and the sealing of the oil supply pipe are considered. If oil does not flow to the chainsaw chain, specifically because of this Why oil flows. If, during work, oil does not flow to the chainsaw chain, it is out of order, oil Why oil. how.
Carburetor repair STIHL MS 180
Carburetor repair STIHL MS 180. Extremely difficult process. Note that during repairs, the risk of sudden changes in the cylinder-piston group is practically absent.
If the chainsaw does not start, then apply the following steps:
1) open and close the gas tank cap;
2) it is advisable to remove the candle and then drain it;
3) ventilate the combustion chamber.
If after that there were no positive results, then it is better to check the condition of the air filter, the process of supplying gasoline and the functioning of the spark plug.
This problem is associated with the valve (blind man), which is clogged, and as a result, a vacuum is formed. All about repairing a chainsaw with your own hands I am not leaking oil from why in a chainsaw. To eliminate this inconvenience, you need to clean the valve (blind man) with a needle.
Check the filter systematically, if the muffler is forgotten, the device will NOT be able to deliver the power that is in it.
If the chainsaw was purchased with a guarantee (the second option, as a rule, cannot be), immediately take it to the service.
Thus, the STIHL MS 180 chainsaw is very convenient to use, has good ergonomics and a number of significant advantages.
Oil supply repair. Carburetor STIHL MS-180
The STIHL MS-180 carburetor is equipped with one idle adjustment screw. Full load jet is NOT adjustable, i.e. cannot be changed.
You need to know the basic rules for adjusting the idle speed:
1) check the air filter, if necessary, change it;
What to fill in oil for chainsaw Stihl 180 (stihl 180)
- You will not regret money for the original oil. Oil 2-stroke Stihl HP costs a little more, but cleaning is even more expensive.
- High-quality fuel can be poured into Mobile 1, and a three-phase one is suitable for lubrication, in no case do NOT fill the workings.
- From inexpensive options, mineral oil 15-40, in winter 10-30. You can M8, for example, or M10.
Remember personal safety when working with a chainsaw.
Remember that the quality of the oil being poured affects the operation of the chainsaw. Chainsaw benefits Husqvarna 240, Why gasoline flows out of the chainsaw Husqvarna 240 × Poor quality oil can cause inefficient tool performance and adversely affect tool parts.
To ensure that the STIHL MS 180 oil pump delivers oil without difficulty, periodically check and clean the pump. OIL leaking Oil leaking from the chainsaw. A quick overview of why oil is in a chainsaw. So the oil supply process will be normal.
Lubrication system device
Suspension from the brand of the chainsaw, the details of the lubrication system may differ slightly structurally, but their total number and connection diagram remains unchanged.
The main components of the lubrication system are:
- The oil tank is usually located in the crankcase.
- Filter element, installed in the tank.
- The oil line is a small diameter oil-resistant rubber hose.
- The heart of the system. Oil pump.
- Worm gear gear transmission force from engine to pump.
- A chainsaw tire, it can also be considered an element of the lubrication system, because it has special holes for supplying oil, by the way, the chain itself participates in the transportation of oil and, accordingly, also has some elements designed specifically to provide lubrication.
How to fix oil leaks on a chainsaw.
One of the cases of elimination of spontaneous theca of lubricating oil for a saw chain from a chainsaw. Repairs.
Carburetor STIHL MS-180
The STIHL MS-180 carburetor is equipped with one idle adjustment screw. Full load jet is NOT adjustable, i.e. cannot be changed.
You need to know the basic rules for adjusting the idle speed:
1) check the air filter, if necessary, change it;
What to fill in oil for chainsaw Stihl 180 (stihl 180)
- You will not regret money for the original oil. Oil 2-stroke Stihl HP costs a little more, but cleaning is even more expensive.
- High-quality fuel can be poured into Mobile 1, and a three-phase one is suitable for lubrication, in no case do NOT fill the workings.
- From inexpensive options, mineral oil 15-40, in winter 10-30. You can M8, for example, or M10.
Remember personal safety when working with a chainsaw.
Remember that the quality of the oil being poured affects the operation of the chainsaw. Chainsaw benefits Husqvarna 240, Why gasoline flows out of the chainsaw Husqvarna 240 × Poor quality oil can cause inefficient tool performance and adversely affect tool parts.
To ensure that the STIHL MS 180 oil pump delivers oil without difficulty, periodically check and clean the pump. OIL leaking Oil leaking from the chainsaw. A quick overview of why oil is in a chainsaw. So the oil supply process will be normal.
Chainsaw malfunctions and repairs
Usually, a failure in the operation of chainsaws is caused by a malfunction of the motor or the appearance of breakdowns in its other nodes.
- Malfunctioning ignition;
- Problems in the fuel supply system;
- Piston or cylinder malfunctions.
In the second nodes, in most cases, malfunctions appear due to failures of the brake mechanism, lubrication system, operation of the clutch, tires, etc.
Chainsaw ignition system malfunctions
Problems in the ignition system in most cases become a prerequisite for the failure of the gasoline tool engine. Reasons for stopping the oil supply in the chainsaw. How can you fix oil leaks on a chainsaw. After that, you should start looking for defects specifically from her.
Chainsaw engine. it a heart tool, therefore it is very important to use a properly prepared fuel mixture.
The fuel mixture for a chainsaw is prepared from two components. Oil and gasoline. Chainsaws are equipped with two-stroke engines, so oil is not added to the lubrication system (as in a four-stroke engine), but directly to gasoline. At the same time, it is very important to observe the correct proportions of the ingredients, of course, in no case should you try to work on pure gasoline, because in this way you will very quickly kill chain saw.
If we talk about what kind of gasoline to pour into the chainsaw, then it will be optimal to use fuel with an octane rating of A-95, in this case, saving on fuel can turn out to be deplorable. Often European manufacturers indicate that it is possible to use A-90 or A-92 gasoline, but in post-Soviet countries the quality of gasoline is inferior to European, therefore, in our realities it is better to use higher quality gasoline.
As for the proportion of the oil-oil mixture itself, everything is simple here: you must follow the instructions for the tool. All manufacturers of chainsaws indicate the required ratio in the instruction manual or in the passport of the tool, in addition, the proportions for refueling the chainsaw may differ depending on the model of the chain saw. As a rule, the proportion of oil and gasoline to a chainsaw of famous manufacturers is a ratio of 1:40 or 1:50, which means 1 part oil for, for example, 40 parts of gasoline. Now arithmetic 1 liter of gasoline = 1000 ml of gasoline, divide by 40 and we get 25 ml of oil. If you do the same to a 1:50 ratio, you get 20 ml of oil per 1 liter of gasoline. As for budget chainsaws made in China, the situation is slightly different. The ratio of gasoline to chainsaw oil made in China 1:25, that is, divide 1000 ml of gasoline by 25, we get 40 ml of oil. The thing is that in branded chainsaws, a solid assembly and the distance between the pistons and cylinders in the engine is much less than in Chinese chainsaws, therefore the required amount of oil differs almost twice.
In order to measure the correct amount of oil, use a conventional medical syringe of sufficient volume.
Another subtlety. Fill a dry gas canister with gasoline first and then oil. The procedure, on the contrary, is fraught with a low quality fuel mixture, because the oil is denser and will stick to the bottom of the canister. What a good mixing here.
Be sure to prepare the fuel mixture in the Canister and fill the ready-made special fuel into the gas tank! Never ready and DO NOT mix it directly in the fuel tank of your chainsaw!
If you figured out the question of how to breed gasoline for a chainsaw, then on storage conditions and shelf life of the fuel mixture it is worth saying a few words. It is best and easiest to prepare a petrol-oil mixture for 1 liter of gasoline, it is recommended to do this immediately before working with the tool. Chainsaw fuel tanks have a volume of 0.3 to 1 liter. In the conditions of domestic use, the entire volume of the prepared fuel mixture is rarely used in one session, so the remainder can be saved until the next session. It is necessary to store the fuel mixture in a special Canister for gasoline, in a dry, dark place. It is optimal to count that the shelf life of the finished mixture will be 7-10 days. The fact is that the oil on the market now is NOT synthetic, but organic, that is, natural. After 10 days, all lubricating properties are lost, gasoline is simply eats oil. Naturally, it is no longer possible to use such fuel, this can cause breakdown and failure of the chainsaw.
At the end of the work, it is necessary to drain the fuel mixture, start the chainsaw, the tool will stall (so that there is a dry carburetor in the saws) and now you can leave it in the next operation session.
Unsuitable fuel mixture must be disposed of.
Constructive components of the chainsaw
All chainsaws are similar in structure, regardless of whether they are European (ECHO, Stihl, Husqvarna) or domestic (Kedr, Ural). The main elements are located inside the body. Fuel tank and engine, and outside the starter, handle, saw part (tire) with chain. A sharp jerk of the cable starts the engine, and that one. Saw blade.
To begin with, we suggest that you familiarize yourself with the rollers, which show how the chainsaw works and how it works:
From time to time, the saw malfunctions, which require disassembly to eliminate. What can happen to such a simple mechanism as a chainsaw? At least the following:
- Stops starting;
- Starts up, but soon stops;
- Ceases to function in the cut;
- Loses its power;
Most of the malfunctions are associated either with interruptions in the operation of the engine (fuel supply system, exhaust system, ignition, cylinder-piston part), or with malfunctions of second systems and assemblies (clutch, chain brake, tire, lubrication system). Consider the most common breakdowns and techniques for their elimination.
A serviceable chainsaw starts with one jerk and does not fail in the cut
Do-it-yourself chainsaw repair: analysis of major breakdowns and methods of their elimination
It would seem, why would a summer resident need a chainsaw, who is engaged in growing vegetables and fruits, or to the owner of a country house with a small garden and several flower beds? The question disappears when there is a desire to build a bathhouse, update a greenhouse, knock down an old business, or just make a bench for relaxation. Unfortunately, any mechanism periodically needs preventive maintenance and replacement of spare parts, and for this you need to be well versed in the device of the product, in addition, repairing the chainsaw with your own hands will save time and money.
Assessment of the state of the cylinder-piston group
Often the engine will not start or run at full capacity due to low cylinder pressure. It can be caused by piston or cylinder wear, piston ring sinking, bearing wear. You can partially examine the state of the cylinder-piston group (CPG) by removing the muffler and looking into the opened hole.
A compressor placed in the plug hole will help measure the compression in the engine. Based on the measurement results, one can also talk about the state of the CPG. Accurate data is obtained only after the complete disassembly of the mechanism. If the piston is chipped or scratched, it must be replaced. The piston ring must be clean, free of carbon deposits, and exactly in its place.
Piston and crank mechanism wear is considered a serious problem.
According to the results of measuring the compression, one can judge the condition of the parts of the CPG
Fuel supply system repair
Fuel may not enter the cylinder for the following reasons:
- Dirty fuel filter. Remove the fuel hose and check how the fuel flows. If the jet is weak, the filter may need to be cleaned. It is taken out of the fuel tank filler hole and cleaned; in case of severe contamination, it is replaced with a new one. As a preventive measure, it is recommended to replace the fuel filter every three months.
- Clogged breather (Fuel tank cap holes). Check also by disconnecting the hose, in case of blockage, clean with a needle.
- Lack or insufficient fuel. There may be several reasons for the malfunction. The first reason. Clogged air filter. Air ceases to flow into the carburetor in the right amount, in this regard, due to a too rich fuel mixture, the engine’s operation is disrupted. The contaminated filter is carefully removed, cleaned and rinsed in water, then dried and reinstalled.
Another reason. Incorrect carburetor adjustment. Adjustment is made with three screws.
Timely replacement of the fuel filter ensures full fuel supply
Fuel hose and choke actuator Must fit snugly against the fitting
The throttle cable must be in place
During work, you must use the instructions, otherwise you can only make it worse.
And the last reason. Violation of the integrity of the membrane or clogging of the channels of the carburetor.
To repair the carburetor yourself, you need to get acquainted with all its parts.
All parts must be clean, dry and in good condition.
Checking the ignition system
The first thing to do if a chainsaw breaks down. Inspect the spark plug by disconnecting the wire and carefully unscrewing it with a special wrench.
The components of the chainsaw ignition system: 1. Flywheel with magnets, 2. Ignition module, 3. Candle, 4. High voltage wire
Unscrew the spark plug to check its condition.
Her appearance says a lot:
- Dry. Most likely, the fuel mixture does NOT enter the cylinder. It’s not about the ignition system, so the plug is screwed back.
- Strongly splashed with fuel. The reason for the excess fuel mixture lies either in the violation of the starting rules, or in the incorrect adjustment of the carburetor. Carefully wipe the spark plug, cut off the fuel supply and turn on the starter. To remove excess fuel and ventilate the combustion chamber. Then the candle is placed in place and the mechanism is started again.
- Covered with black carbon. This may indicate the use of low-quality oil, in an incorrectly adjusted carburetor or in an incorrectly calculated ratio of gasoline and oil. The candle should be washed, cleaned of carbon deposits with a sharp object (awl or needle), wipe the electrodes with a sandpaper and put in place.
When checking the candle, you must Pay attention to the gap between the electrodes: it is considered normal from 0.5 to 0.65 mm. A damaged or worn gasket must be replaced.
A large amount of black carbon on the spark plug indicates an engine malfunction.
To be sure, you should also check for a spark. To do this, put an ignition cable on the spark plug, pliers connect the plug nut and the cylinder, start the starter and watch for the spark. If it is missing. The candle needs to be replaced. If the new candle also does not produce a spark. The problem is in the high-voltage conductor or in the broken connection with the candle.
Repairing the chain lubrication system
Consider three main faults:
- Oil leakage. Check if the pipes are tightly connected to the pump connection and if they are not cracked. Problem tubes are sealed or replaced.
- Insufficient oil supply. Most likely clogged grease passages.
- Cracks in the oil pump housing. Part replacement required.
Here’s how to diagnose the lubrication system: