Chainsaw Husqvarna (Husqvarna) 137 - carburetor adjustment.
The best advice I can give you is to consult a specialist! Believe me, for very little money, specialists will adjust the carburetor and check the general condition of the saw. But if you still need to adjust the carburetor on the Husqvarna 137 saw yourself, then I will try to describe this process in detail. Also at the end of the post I added a video on how to adjust the carburetor of a chainsaw at idle speed.
Adjusting and tuning the Husqvarna 137 carburetor
husqvarna137 - carburetor adjustment
In the picture above you can see three screws for adjustment. Each of them has its own purpose:
Screw T is necessary to adjust the idle speed.
Screw L is used to adjust low speed.
Screw H regulates high speed.
Adjustment procedure:
First, using screw L (rotating it), we look for the highest idle speed. After we have found them, we need to turn this screw a quarter turn counterclockwise. If in this position the chain continues to rotate, then by rotating the screw T we achieve its stop.
Then we warm up the engine at full speed for about 10-15 seconds and turn screw H a quarter counterclockwise. We wait 10 seconds and listen - the engine should sound like a 4-stroke. If a squeal is heard, then the mixture is lean (unscrew the screw), if the mixture smokes rich (tighten the screw).
After adjusting the low and high speeds, we set the idle speed with screw T. This is done as follows:
1.The engine must be running
2. Rotate screw T clockwise until the chain begins to rotate.
3. Rotate the screw in the other direction until the chain stops.
With a correctly adjusted carburetor, your chainsaw quickly picks up speed and sounds similar to a 4-stroke engine.
Remember that to properly adjust a chainsaw carburetor, you need a tachometer and experience. Therefore, it is better to contact a specialized service!
Husqvarna 142 in use
We prepared the fuel mixture on the basis of AI 92 gasoline and Husqvarna HP branded two-stroke oil in a ratio of 50 to 1. It is interesting to note here that if oil added in the specified ratio is not available, the manufacturer allows the short-term use of high-quality oil diluted with gasoline in the ratio 33 to 1.
We operated the Husqvarna 142 for about an hour. It is ideal as a household chainsaw: almost complete absence of vibrations in the hands, a completely bearable noise level and, most importantly, excellent cutting abilities. Fresh pine and dry birch trunks with a diameter of 26 cm were repeatedly sawed in an average of 7 s each. The dry oak yielded a little more slowly; It took approximately 14 seconds to cut a log with a diameter of 24 cm. The cutting speeds are slightly lower than those of the professional chainsaws that we tested, but these are saws of a different order of cost. The Husqvarna of working at full power ; high speeds are even recommended in the instructions. The brake works perfectly - the chain stops instantly.
Do-it-yourself carburetor adjustment on a chainsaw
Adjusting the chainsaw carburetor ensures efficient operation of the tool at full power with economical fuel consumption. The adjustment must be made with a clean fuel and air filter. For a larger number of carburetors, adjustment is carried out with three screws: for maximum and minimum speed and idle speed adjustment.
Screws H and L adjust the ratio of the mixture of gasoline and air, determined by the opening of the carburetor throttle valve. When the screws are unscrewed, the mixture becomes richer, and the speed drops accordingly; when the screws are tightened, the mixture becomes leaner - the speed increases.
The designation H refers to the maximum speed screw that controls the main jet, L - to the minimum speed screw that controls the idle jet. Using screw S, the idle speed is precisely adjusted. Sometimes, to simplify setup, the number of available carburetor adjustment screws is reduced.
Setting up a chainsaw carburetor is divided into two stages - basic (factory settings), carried out with the engine turned off. and the final one, performed with the engine running and warm. The exact value of the rotation angles should be taken from the operating instructions for the specific chainsaw. Failure to follow manufacturer's instructions may result in engine damage.
Basic carburetor adjustment.
The adjusting screws for maximum H and minimum L revolutions are slowly turned clockwise until they stop, and then turned back 2 turns; other settings are also possible
Checking and adjusting idle speed.
We find the highest idle speed, to do this we slowly turn screw L in different directions. After finding the position of the highest engine speed, turn screw L 1/4 turn counterclockwise. If the chain rotates at idle, screw T or (S) should be turned counterclockwise until it stops.
Checking and adjusting the maximum speed.
The maximum number of revolutions is changed using screw H. When it is turned in (clockwise rotation), the speed increases, and when turned out, it decreases. Chainsaw engines have the highest rotation speed from 11,500 rpm. up to 15000 rpm. A higher speed is not ensured by the ignition, in addition, it becomes dangerous for the engine. Limit speeds can be determined by interruptions in ignition. If they do, screw H is turned slightly counterclockwise.
If the engine operation is not checked for acceleration and maximum speed, then the adjustment of the chainsaw cannot be considered complete.
When you smoothly press the gas trigger, the engine should confidently and quickly pick up speed from idle to maximum speed (from 2800 rev. to 11500-15000 rev. depending on the unit). If the speed is gained slowly, with a delay, screw L must be slowly turned counterclockwise, but no more than 1/8 of a turn.
After adjusting the acceleration and maximum speed, you should check the operation of the saw again at idle speed - the engine should run steadily, the chain should not move. The chainsaw adjustment must be repeated if this condition is not met, except for the basic adjustment stage.
Chainsaw delivery set
When ordering the Husqvarna 142 model, the buyer receives absolutely everything necessary to start using and further maintain the garden tool. The model kit includes:
- branded tire and chain;
- plastic tire cover;
- hand tools for assembly and maintenance;
- user manual.
For an additional fee, the manufacturer supplies the chainsaw with a bag for transportation, branded oil for 2-stroke engines and additional spark plugs.
Adjusting the chainsaw carburetor
The carburetors of most chainsaws have three screws for adjustment:
- L – jet screw for low speed adjustment
- H – jet screw for high speed adjustment
- Screw - T at Partner and Husqvarna (at Shtil LA ) - adjusting the idle speed of the chainsaw
Screws H and L adjust the ratio of the mixture of gasoline and air, determined by the opening of the carburetor throttle valve. When the screws are unscrewed, the mixture becomes richer, and the speed increases accordingly; when the screws are tightened, the mixture becomes leaner - the speed drops.
The T(LA) screw is designed to adjust the idle speed. The basic adjustment of the chainsaw is made at the manufacturer during the final test. The carburetor is usually adjusted to supply a richer (than optimal) fuel mixture. The factory setting must be maintained for the first hours of operation of the saw. Then (optional) more precise adjustment of the carburetor is made.
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We begin the adjustment by adjusting the idle speed; to do this, rotate the T screw (LA) counterclockwise, achieving a complete stop of the chain at stable engine speeds.
For further precise adjustment, you will need a tachometer and it is better to entrust it to specialists. especially since in most cases it may not be needed.
We start setting up the tool with screw L, then use screw H and finally screw T (LA).
We find the highest idle speed, to do this we slowly turn screw L in different directions. After finding the position of the highest engine speed, turn screw L 1/4 turn counterclockwise. If the chain rotates at idle, screw T should be turned counterclockwise until it stops.
Screw H regulates power and speed. Adjusting the carburetor to a lean mixture leads to excessive speed, engine overheating and failure of the piston chainsaw.
Warm up the chainsaw engine at idle speed for at least 10 seconds and turn screw H 1/4 turn counterclockwise. Let the engine run for about 10 seconds. then we check the maximum engine speed with a tachometer. If the maximum speed does not correspond to the specifications, the operation should be repeated. When the mixture is supplied too rich, the muffler begins to smoke; when the mixture is too lean, the saw squeals and overheats.
We complete the adjustment by adjusting the idle speed, as already described above. The idle speed is set correctly if the engine runs smoothly at minimum speed and the chain does not rotate.
The carburetor can be considered adjusted if the engine accelerates quickly and sounds like a four-stroke at full throttle.
A carburetor in a chainsaw is necessary to mix and supply fuel to the combustion chamber of the engine. If the carburetor is adjusted correctly, the operation of the equipment will be reliable in all modes, and fuel consumption will be economical. In general, this rule applies to all internal combustion engines.
STIHL saws and Partner
In chainsaws STIHL 250, 361, as well as Partner 351, 350, the carburetor is adjusted using screws H and L by setting the proportions of gasoline and air. If you release them, a large part of the fuel will be added and therefore the speed will be high, otherwise, on the contrary, it will drop.
The idle speed in Partner chainsaws is regulated using a screw with the letter T, but with Shtil, as a rule, you need to look for the LA marking. Standard adjustment of the chainsaw is carried out during final tests. Basically, after such settings, the percentage of fuel in the working mixture is greater than air, which does not correspond to the optimal parameters. But they must be preserved during the first hours of operation during the running-in of the device. After this, the saw can be adjusted independently, but it will work well even at the factory settings.
But if you decide to regulate yourself, then the actions must be performed in the following sequence:
- adjusting screw L;
- then adjust the jet H;
- after that, proceed to adjusting the idle speed using screw T (if the STIHL chainsaw is LA).
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First, screw L must be turned in both directions in order to find the maximum engine speed. If that point is found, then turn the same screw by ¼, thereby slowing down the speed a little. If the chain continues to move at idle, you must immediately turn screw T (LA) until the chain stops completely.
After setting the maximum speed with screw H, you need to check the frequency on the tachometer. In the event that it does not correspond to those specified in the service book, the setting must be repeated. When a lot of smoke comes out of the exhaust pipe at maximum speed, the mixture is too rich in fuel; if noise is heard and the engine gets very hot, then, on the contrary, it is lean. Then you need to adjust the idle speed. With proper settings, the engine should sound smooth at low speeds, and the chain should not move.
When and why to adjust
The procedure for adjusting the carburetor is usually carried out quite rarely. The highest quality and best option is factory settings. But if necessary, it can be done by adjusting the corresponding screws. A carburetor in a chainsaw is necessary to prepare an air-gasoline mixture, which must have a certain ratio of ingredients. If the balance is not maintained, then malfunctions will begin to occur in the engine.
A mixture that does not meet specifications may be oversaturated or lean. In the first case, the amount of fuel relative to air is increased, in the second there is more air than needed, and less fuel. The article will discuss carburetor adjustment using the Husqvarna 142 chainsaw as an example.
Controls
Here in Husqvarna 142 is the classic minimum. They are represented by a switch that can be set to On or Off, a choke position lever that can be in one of three positions, and a combined throttle position control lever with a stopper. Here only “suction” requires explanation. Between the fixed positions of the open and closed damper, there is a third stable position, corresponding to the half-open damper of the chainsaw carburetor. It is used when turning on a cold engine after several jerks with the starter with the throttle closed. Husqvarna 142 does not have a primer. Primary fuel pumping is carried out using the starter handle. Well, the fewer nodes, the fewer breakdowns!
Location of controls
Husqvarna 142 is ideal for domestic use. A powerful, fuel-efficient, easy-to-use and affordable chainsaw. It breaks extremely rarely. In the event of a breakdown, self-repair is possible.
Signs of poor performance
Some signs may indicate a carburetor malfunction. For example, if the engine stalls quickly or is difficult to start, a lean mixture could be a possible cause. Excessive fuel consumption also becomes a problem. You should also be wary of intense exhaust emissions. The cause is an oversaturated mixture.
Sometimes it happens that the engine does not want to work at all. There can be 2 reasons for this: there is no spark or gasoline. In the second case, the problem is expressed in a clogged fuel nozzle; in the first, the problem is a faulty spark plug or failure of the electronic unit.
Settings can go wrong quite rarely, but the reasons are:
- wear of the piston group;
- violation of the fastenings of the adjusting screws;
- carburetor contamination.
In the first case, adjustment will not help much; you need to think about replacing the saw or repairing the engine. As for fastening failures, the cause may lie in a careless touch or strong external vibration. Sometimes an attempt at rough adjustment leads to a violation.
Carrying out the adjustment
The Husqvarna 142 carburetor must be adjusted using a tachometer. You must be able to work with it. If experience allows, manipulations can be carried out by ear, determining the maximum speed by sound. In other cases, a positive result may not be achieved. The Husqvarna 142 carburetor is adjusted with one, two or three screws. You can distinguish them by their designations.
Idle speed is adjusted with a screw under the letter T. You can adjust the minimum speed with screw L. While screw H is intended for maximum speed. You will see one idle screw and two others that will be hidden behind the cover. This version of the carburetor is explained by the fact that the manufacturer recommends that the operator adjust only one idle speed screw, since otherwise the optimal settings are already set at the factory. But for some extreme conditions you can make adjustments.
Conclusion
The work of adjusting or repairing the carburetor on Husqvarna chainsaws can be done without any specific experience. In order to do everything correctly, you must follow the algorithm and have a minimum set of tools. It’s also worth assessing your strengths in advance and not taking risks if you don’t understand anything at all about technology. Believe me, sometimes it is better to pay a small amount to the master than to ruin the instrument by adjusting it yourself.
The Husqvarna 142 chainsaw is a reliable, economical and easy-to-use household tool. The model is distinguished by a solid reserve of power and torque, which makes it possible to operate it not only in private farming, but also during felling. High build quality and a number of useful functions allow you to use the saw in the most difficult weather conditions.
Work methodology
The Husqvarna carburetor is adjusted using screws L and H if gasoline is used that differs from that recommended by the supplier. If the octane number is low, to increase it, turn the screw using the unscrewing method. This will increase speed and power. But with an increased octane number, to lower it, you must turn the screw in the opposite direction, tightening it. This will help reduce engine speed.
When adjusting the Husqvarna carburetor, the screws must be used in the following order: L – H – T. By maintaining precise angles of rotation, you will follow the requirements that will allow you to maintain the best operating parameters of the engine. There is no universal way of adjustment. The procedures may differ from one another. But the process is usually divided into two stages. The first is basic, the 2nd is final. The basic stage is performed with the engine turned off, while the final stage involves warming up the engine for 10 minutes.
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Specifications
In order to ensure long-term operation of the described equipment, you need to know how to adjust the Husqvarna 142 carburetor with your own hands. This was discussed above. However, this is not the only thing that the future owner of such a device should know. Before purchasing such equipment, it is important to inquire about the technical characteristics. For example, evaluate whether the weight, which is 4.6 kg, suits you. By the way, it is well balanced, so the saw fits comfortably in your hands.
The shape of the handles is ergonomic, which guarantees a reliable grip during complex work. There is a vibration protection system inside, and operation is not accompanied by too high a noise level. All this contributes to high labor productivity and the preservation of human performance during large-scale work.
Adjusting the Husqvarna 142 carburetor with your own hands is quite simple if you read the instructions. From it you can find out that the power of the device is 2.6 liters. s., or 1.9 kW. The chain pitch is 0.325 inches. The number of links is 64.
The kit comes with a chain whose thickness is 1.3 mm. The engine capacity is 40.2 cm3. The length of the tire is 38 cm or 15 inches. The oil and fuel tanks hold 0.2 and 0.41 liters, respectively.
Headset
This unit consists of a 15" removable guide bar, cutting chain with 0.325" pitch. The kit also includes a drive sprocket and tensioner. It is possible to install alternative smaller kits that better suit the requirements of the task.
Lubricating the chain prevents overheating and accelerated wear. The system includes an oil pump with adjustable capacity, into which the working fluid is supplied from a built-in tank with a capacity of 200 ml.
Consumer Reviews
You can adjust the Husqvarna 142 chainsaw yourself. Consumers consider this feature a plus, as well as the fact that the crankshaft in the design is made of forged steel. Another advantage is the relatively easy access to the air filter. The ignition system is durable and simple. The piston group has two compressor rings, which have an increased working life. The manufacturer emphasizes that they will be ready to last up to 5 years.
Consumers also like the fact that the cylinder liners have a wear-resistant chrome coating. You may not have to adjust the Husqvarna carburetor, because, according to the manufacturer, it is the best in its class. The design is also good because it has a built-in primer. It is a pump that provides the engine with a quick start. This feature is independent of ambient temperature.
Operating instructions and repair features
From the instructions you can find out that the carburetor of the Husqvarna 142 chainsaw is adjusted after running in the machine. It is important to know that the maximum speed is 12,500 per minute. Idle speed reaches 2500 per minute. If your saw starts to behave differently at startup, at high speeds, and when accelerating after switching to a different fuel type, fine adjustments may be required. Before this, the air filter is cleaned and the cylinder cover is replaced. If adjustments are made with a dirty air filter, this may result in a lean mixture, which will cause engine damage.
As for the repair of Husqvarna 142, there are several main breakdowns and ways to fix them. You should know the approximate reasons that lead to a malfunction. Among others, problems with the engine should be highlighted. If it runs non-stop, won't start, or starts but stalls frequently, you need to inspect the spark plugs. When starting equipment in cold weather, it may happen that the combustion chamber is filled with a fuel mixture. In this case, the spark plug is unscrewed, and the combustion chamber is dried by idle. The spark plug must be cleaned and the saw must be started again.
Don't underestimate muffler failure. If it fails, the saw may not start or lose power. When disassembling this part of the chainsaw, you will be able to inspect and get rid of carbon deposits. It may contain carcinogens that are hazardous to health, so dry cleaning should be avoided as it may cause inhalation of harmful substances.
After the muffler is removed, the engine exhaust hole should be plugged with a clean rag. The muffler becomes clogged for several reasons. The first of these is the use of the wrong fuel mixture. The second reason is using the wrong oil.
How to install the repair kit?
If the problem affects the carburetor nozzle, you can try to fix the serious problem yourself. However, the manufacturer recommends dealing with this problem only by replacing the unit.
To remove the carburetor, you need to completely clear the saw of sawdust and shavings. To do this, you need to use a compressor and a compressed air gun. Next, unscrew the filter cap and remove the filter element. After this, all drives and throttle linkages are disconnected from the Husqvarna carburetor. Now you can remove the carburetor from the saw.
Next, you need to completely disassemble the carburetor and replace all the elements that the repair kit offers. Namely, spare parts and gaskets. This will save you from breakdowns in the future.
Now you know how to adjust the carburetor of the famous Husqvarna 137 chainsaw.
Adjusting the champion chainsaw">chainsaw carburetor
The carburetor has three adjusting screws: L – low speed jet screw H – high speed jet screw T – idle speed adjustment screw echo3500 adjusting screws
Using screws H and L, the ratio of the fuel and lubricant mixture to air is adjusted, determined by the opening of the throttle valve. When the screws are tightened (clockwise), the mixture becomes leaner - low speed, when the screws are unscrewed (counterclockwise), the mixture becomes richer, the speed increases.
Screw T regulates idle speed. When turning clockwise, the number of revolutions increases, and when turned counterclockwise, it decreases.
The basic carburetor adjustment is made at the manufacturer when testing the saw. The carburetor is adjusted to a richer than optimal mixture. This adjustment should be maintained during the first hours of operation of the saw. Then the carburetor is finely adjusted. When rotating the chain at idle speed, turn screw T counterclockwise until the chain stops.
Fine adjustment of the carburetor can only be carried out in a warm state by specialists with special equipment (revolution counter).
First adjust screw L, then H and finally screw T.
First you need to find the highest idle speed by slowly turning screw L clockwise (or counterclockwise). After finding the position of the highest revolutions, turn screw L 1/4 turn counterclockwise. If the chain rotates at idle, turn screw T counterclockwise until the chain stops.
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Adjusting screw H affects power and speed. Adjusting the carburetor to a lean mixture leads to excessive speed and failure of the saw.
After warming up the engine at full speed for 10 seconds, turn screw H 1/4 turn counterclockwise. Let the engine run for about 10 seconds. Check the maximum speed with a tachometer. Repeat the operation if the maximum speed does not correspond to the specifications. The engine should sound like a four-stroke. If the mixture is too lean, the saw squeals. When the carburetor is adjusted to a too rich mixture, the muffler begins to smoke.
For optimal adjustment, you must contact a specialist who has access to a tachometer. Fine adjustment of the idle speed with screw T is carried out after adjusting screws L and H. If adjustment of the idle speed is required, then with the engine running, screw T must be turned clockwise until the saw chain begins to rotate. Then you need to turn the screw back counterclockwise until the chain stops rotating. The idle speed is set correctly if the engine runs evenly in all positions with sufficient rpm when the chain begins to rotate.
The carburetor is adjusted correctly if the engine accelerates immediately and sounds like a four-stroke at full throttle. Adjusting screw L to a too lean mixture results in difficult starting and poor engine acceleration.
Safety precautions for operating the Husqvarna device
Due to the fact that the Husqvarna 137 is a high-speed cutting tool, it is necessary to adhere to certain safety rules.
To avoid an accident, please read these instructions carefully.
- The spark plug wire must be disconnected during transportation and cleaning. It is important to ensure that it does not come into contact with the spark plug to avoid the circuit suddenly turning on.
- When working with a saw, you must wear protective clothing: shoes with non-slip soles with steel inserts, special gloves (not included in the delivery package), a mask or safety glasses (anti-fog). Hair should be pulled back above the shoulders.
- If you regularly use a chainsaw, you should periodically have your hearing checked by a specialist.
- Chainsaws should only be used by adults.
- Do not place body parts under the saw while the motor is running.
- While the saw is operating, the presence of children and animals must be limited to at least ten meters.
- Do not use a chain saw while under the influence of alcohol, or when you are upset, depressed or tired.
- Do not start work until you are wearing protective clothing and your work area has been equipped.
- You should only work with the saw in a well-ventilated place.
- When you cut down a branch, be prepared to jump back the moment you finish the job so that you do not get hit by the felled tree limb.
- The saw can only be laid on the surface after it has been turned off.
- Before turning on the saw, make sure that the chain cannot come into contact with anything during operation.
- Maintenance of your chainsaw should only be carried out by a specialist.
- The saw handle should be clean and not stained with machine oil.
- The oil and fuel reservoir caps must always be tightly closed.
- Only accessories from .
- Do not smoke while refueling.
- You need to refuel the saw on bare ground in the open air. This is not allowed indoors.
- Before starting the chainsaw engine, you must move ten meters away from the place where the refueling took place.
- Be sure to let the saw cool before refueling.
- If the moving chain touches any object, a kickback may occur - rapid movement of the device down and up. This may result in complete loss of control of the chainsaw and further serious injury.
Therefore, never try to rotate the saw when removing it from the lower cut, and also do not try to cut several logs at the same time.
“Husqvarna 137” is an indispensable assistant on a country plot or dacha. It has a modern design, high power, compact dimensions and low fuel consumption. This is perhaps one of the best amateur chainsaws. With proper operation and compliance with all safety regulations, it will serve its owner faithfully for decades. Read about possible malfunctions of the Husqvarna 137 chainsaw in our other article.
What is a carburetor?
A carburetor is a device that has the following functions: mixing gasoline and air, creating a combustible mixture to power the engine and regulating its flow. Husqvarna carburetor parts are made by casting from various alloys with further mechanical finishing. This ensures the high quality of Husqvarna carburetors, which you can verify by purchasing this spare part at the 220 Volt store. This is an integral element of many tools among garden petroleum equipment, for example, chainsaws, brush cutters, and lawn mowers. In a number of situations, for example, with poor fuel filtration, the carburetor may fail. Fortunately, this will not be a reason to spend money on a new tool, because you can buy a carburetor separately (both regular and assembled).
A carburetor is a device that is designed to prepare a combustible mixture of liquid fuel and air, which ensures the operation of carburetor internal combustion engines.
Modern carburetors are equipped with many different devices and systems that have numerous holes of different calibers, an extensive network of channels, pneumatic chambers and lever transmissions.
The carburetor is one of the main parts of any fuel-powered equipment. To ensure normal and stable operation of the equipment, the carburetor must be periodically checked and, if necessary, adjusted.
Chainsaw carburetors have three adjustment screws. The “L” screw is designed to regulate low speeds, the “H” screw is responsible for regulating high speeds, and the “T” screw is for idling the chainsaw. So, with screws “H” and “L” the ratio of the mixture of air and gasoline is adjusted; when the screws are unscrewed, the speed increases, as the mixture becomes richer, and when tightened, the speed drops. Generator carburetors often have only one adjusting screw, but it is possible to find many other modifications of this spare part. Its adjustment eliminates excessive fuel consumption and leakage of unburnt oil.
However, there are quite common cases when adjusting the carburetor cannot eliminate problems in the operation of the equipment. This occurs due to the final failure of the part, which occurs as a result of natural wear or due to improper use.
You can purchase a new part for your equipment in our online store. From us you can buy carburetors for brush cutters, chainsaws, gas cutters, diesel and petrol generators, as well as carburetors for blowers and many other equipment.
A versatile, multi-purpose saw for part-time use. Narrow and sleek body, excellent power-to-weight ratio, and some of the best vibration performance of any saw available. The economy pump stops supplying lubrication to the chain when the saw is idling. Easy Start system - a new spring-loaded starter mechanism and fuel pump that reduce the number of jerks required to start.
The stopper is not included in the scope of delivery. Characteristics:
Air injection Air injection Centrifugal air cleaning system for long filter cleaning intervals, trouble-free operation and reduced wear. Easier to start Combination regulator/stop makes starting the saw easier. Decompression valve Easy to operate The narrow body, high center of gravity and flat bottom make our saws extremely easy to use. Two-mass principle Vibration absorption system and handles isolated from the motor by steel springs. Independent anti-vibration system. Smooth operation The damping clutch reduces vibration in the carburetor. Ensures trouble-free operation and extends service life. Three-Piece Crankshaft Forged three-piece crankshaft designed to maximize service life and designed for the toughest applications.
Better grip Curved front handle for better grip and natural working posture.
Economy pump The economy pump stops lubrication in idle mode.
Fast acceleration The low weight of all moving parts of the motor allows for fast acceleration.
Easy to clean The bayonet-mounted air filter makes it easy to remove the filter for cleaning.
Safety in use The double-action chain brake, right hand guard and chain stop increase the safety of working with the saw.
Chainsaw malfunctions and how to fix them
Owners of the Husqvarna 142 model often encounter typical breakdowns caused by improper use of garden tools or simple wear of its parts.
These malfunctions include:
- the chainsaw does not start - the cause of this breakdown lies in the spark plug being flooded. To be able to start the saw motor, you need to remove, wash and dry the spark plug. After this, you need to blow out the cylinder by sharply pulling the starter cable several times with the spark plug turned out. After this, you need to screw in the spark plug and start the engine of the garden tool;
- increased vibration during operation of the saw - repair of this breakdown is carried out by cleaning or replacing the muffler. You will also need to inspect the springs of the anti-vibration system. If necessary, sagging parts must be replaced;
- shooting sounds - if loud popping noises are heard during operation of the Husqvarna model, then the causes of the breakdown should be sought in the carburetor or muffler. The operator will first need to adjust the carburetor. After this, you need to remove and wash the muffler;
- leakage of oil to lubricate the chain - to eliminate this breakdown, you need to check the condition of the oil pump and pipes. The faulty part will need to be replaced.
To avoid further breakdowns of the Husqvarna 142 chainsaw, you need to use high-quality gasoline and oil to refuel it. This will help prevent increased wear of parts and protect model components from overheating.