Replacing the spring on the chaeter chainsaw. How to assemble a starter on a chainsaw?

Starter for a chainsaw

Starter is one of the most important mechanisms in the device of any modern chainsaw. The launch of the tool engine under any weather conditions depends on it. The starter for the chainsaw is released by a simple design, it is easy to serve and repair it with your own hands. However, in order to eliminate the breakdown, you must first find its cause. For this, most often it is necessary to completely disassemble the standard mechanism.

Most chainsaw starters have the same design. It is because of this that some stores offer customers universal start-up mechanisms that are suitable for installation on the model from STIHL, Husqvarna, Partner. Nevertheless, some differences from the majority have starters of domestic chainsaws Ural or forester.

In standard configuration, the starter of the chainsaw consists of a number of details.

A protective cover is installed on top of all the elements of the starter. The initial principle of work of most starting mechanisms is also almost the same. There is a pen that holds the cable in the special groove of the chainsaw case. With a sharp raising of the handle, the latter is understood. At this moment, a ratchet is triggered, which through the drum transfers an effort to another drum with slots located on the engine shaft.

When stretching the standard cable, the shaft of the chainsaw motor begins to rotate, which leads to the compression of the existing fuel mixture located at that time between the cylinder head and the standard piston.

With an increase in the volume of the ICE cylinder, the amount of fuel mixture consumed at the same time increases, which is required for its future ignition. Accordingly, the operator of a powerful saw needs to make more jerks than the owner of a household tool with low power. To increase the speed with which the drum returns to its starting position, manufacturers of powerful chainsaws use elastic return springs.

How to put a spring on a chainsaw starter?

Place the spring in the appropriate groove is a rather difficult task. First of all, the detail will need to be twisted, returning it to the previous size. After that, it needs to be inserted into the cavity of the standard hub of the drum. To tie the spring into the starter of the chainsaw, you need to act in this order:

• The outer end of the spring used must be fixed in a special restrictive ledge. In this case, the second end using the screwdriver will need to be installed opposite the standard hole inside the lock;
• Further, the loop located on the inner end of the standard spring should be combined with the hole. To do this, it is better to use a screwdriver. At the ends of the ends, the disk will need to be lowered;
• After installation of the disk, you need to check that the dog of the factory ribbon mechanism of the chainsaw stands in its regular place. Then you can collect a ratchet in the reverse order.

To wind the spring on the starter of the chainsaw, you need to take into account all the available holes and recesses. After installation, you need to pull the spring. As soon as the weakness is eliminated, the spring will remain at several revolutions. this is necessary to support the required tension of the installed part.

Repair procedure

Features of the operation of the starter imply a sharp and gross effect, which sooner or later affects the form of breakdowns. Fortunately, in this mechanism, there is nothing particularly to break and the instructions described further affect all possible causes of malfunctions. Starting with how to restore or how to insert a spring into a chainsaw starter, and ending with the installation of dogs with a flywheel film. Step.by.step guides, sequentially, for each problem.

Restoration of the spring

The most popular case of breakdown is associated with the riding of the mounting ear of the main strip spring that reinss the cable. It is not necessary to search and buy a new spare part, since the procedure requires a minimum of time and tools. Only 2 things will be needed: source of fire (a gas burner or stove) and pliers.

Gently take out the spring from the body. You can put a slotted screwdriver.

At the site of a broken ear, you should make a new one by performing an ordinary bend of the tape. So that the metal does not burst, before the bend it must be heated red.hot and bend it to cool (it is better to do this directly above the fire).

The shape and size of the bended part should be identical to the original in order to tightly fit the restraint to the protrusion. How to tuck a spring into a chainsaw starter and save your nerves, is described below. Before starting installation, wait for complete cooling.

How to install a chainsaw starter spring

The basic dexterity and standard dexterity of the hands, combined with simple technology, will reduce time costs, allowing the operation to quickly and almost naturally. The installation of a return spring begins with a fixing of the ear on the recess, in the direction counterclockwise (if you look at the inside of the spring body).

The tape is invested gradually, layer by layer. The already placed part of the spring adheres to the thumb of the right hand, while the finger of the left laid a new segment. Having put about 1/3 of the circle in the case, the tape is pressed with the thumb of the left hand, the right one is brought to it and the cycle is repeated. The entire installation process takes no more than a minute.

Even easier to insert a new spring purchased as a spare part for the starter. It can be in a fixing winding that is gradually removed when installing. The already twisted element is simply inserted into the case. The easiest option is a ready.made kit with a strip spring in the case, which are put in place of old elements in one motion.

Replacement of the cord

Cases of a cut of the handle cable are quite common and characteristic, both Chinese models and branded manufacturers. Since this connecting element is subjected to serious loads and periodically breaks, the process of cornering is extremely simplified. First of all, it should be determined how long the cord should be on the chainsaw. Depending on the size of the drum and the diameter of the cable, the value is located in the region of 120. 140 cm (necessarily with a small margin). Having prepared a suitable segment, you can take a cross screwdriver and proceed to the replacement.

Remove the starter from the chainsaw and unscrew the central screw on the ratchet.

We take out the drum and remove the old cord.

We spread a new cord through the hole from the inside of the drum groove (for convenience, the ends can be melted with a lighter).

We pull the end from the hole ≈ by 10 cm and tie it into the knot so that the cable does not fly.

Into a special recess under the drum, lay the knot and the remaining part of the cable. In order not to rest against the spring body, it is advisable to leave about 1 cm.

We install the drum in its place, combining the spring with the ear, and press the puck with a puck (do not wind the cord).

We spread the opposite part of the cord through the starter case and the hole in the handle, after which we make a fixing node at the end.

The cord winding is carried out due to the spring. Just slightly pull the cable from the hole in the drum to its edge, and holding it at this point, rotate the drum clockwise. The spring is strained, and when released, the cable itself wraps up. Repeat the procedure until the handle is tightly pressed against the body.

Replacing the ratchet

The main element that transfers rotation to the flywheel is subjected to serious wear in places of contact. The teeth of a plastic ratchet (pulley) resting on dogs (especially iron) have the property of rolling or washing, seriously complicating the launch process. The second problem relates to a ratchet with a lightweight start, connecting to the drum through a spring, which can break off at the mounting site. The strip spring can be restored by following the above instructions, and with a screw chip, the structure will have to be replaced. How to remove and install a ratio of a chainsaw starter is shown further:

How to assemble a starter correctly

The nuances of the design and interaction of the details of the mechanism determine the complexity of its maintenance. Manual starting of a chainsaw consists of a minimum set of components, whose work is built on an extremely simple principle, intuitively understandable during the first, thoughtful analysis. You can explain how to assemble the starter of the chainsaw, you can very briefly, a couple of the following sentences:

The strip spring is invested in its case and is installed with it on the starter. The drum with a fixed cord is placed on the spring, clinging to her ear. The design is pressed with a screw with a puck through a hole in the ratchet.

This runaway excursion reflects the main assembly steps. A more detailed description of each movement, with the nuances of various models, the process of tensioning the cord and replacing dogs, is clearly presented in the above instructions. Choose the topic of interest to you, read, see and implement.

When and how a malfunction of the brake system of the chainsaw arises?

As a rule, a metal ribbon breaks down, tightening the drum, as it is also called a clamp bracket. It either completely breaks, grinds, or one of its stripes (in the case of a through tape). This happens from the wear of the bracket, which, in turn, arises for natural reasons (the developed resource), as well as from the illiterate operation of the user of the chainsaw.

What does illiterate operation mean? Most likely, this can be called an inattention of a sawmill. Those who first begin to work with imported saws equipped with a brake system, as well as their analogues, do not notice when operating the tool when the brake turns on. For example, when trying to extract a clamped cut in a tree. The brake system works from sharp manipulations, but the inexperienced saw owner does not notice this. Having freed the saw “from the capt”, the lumberjack is faced with a surprise. there is no rotation of the chain when gas supply. Not understanding why the chain does not rotate, it desperately begins to turn the chain, instructing and “fidering” the tire of the foam or about the log. about any subject. Some “comrades” even remove the lid from the clutch, tear it out, although the metal tape clamps the clutch basket. Then they are not at the least inspected and even somehow manage to stick the lid back. Of course, the bracket already has a defect from this. In addition, it is not clear how, but these users of the saw manage to “excite” the tool and even saw. In this case, not only the clamping bracket is covered, but also the clutch itself. it burns out and has a characteristic blue color. Repairmen in the services often say and show a duffed tape and a drum with a characteristic groove and a beam, claiming that the owner of the saw operated the tool on the brake turned on!

We can observe something similar in lumberjacks with some experience. But in this case, the reason lies in the fact that the owner of the saw does not produce timely cleaning of the tool. This belongs to the frosty season, when the mixed sawdust with snow, compresses behind the lid, encircles the clutch drum and freezes after the working day. The next day, the lumberjack cannot crank the chain on the started saw and tries to free herself from the barrier by repeated “rolling” the chain along the wood (log, pony, etc.P.). In general, the clamping bracket also gets!

In addition to the clamping bracket (metal tape) in the brake system, a drive (sliding lever), which is a plastic pin may break.

About repair

What to do a lumberjack when detecting these malfunctions of a chainsaw in a plot?

The most common way to eliminate malfunctions by loggers is to remove these elements from the brake system. Simply put, the operator removes the brake. throws out a defective clamp bracket. This is fraught with the occurrence of an accident under the “force majeure”, since the lumberjack deprives itself of security. Nevertheless, this is the most used option for solving the problem of lumberjacks.

Another method is exotic, very rarely used, but still used. The lumberjack repairs a chainsaw in the plot, replacing the clamping bracket with an element of the strip cut off from the starter’s metal tape. To bent the “tongue” of the tape and fix it in the seating place, you need to pump this fragment on the fire. Sliding lever (drive) is also made from improvised means. It should be understood that the “man.made analogs” of spare parts should be used only for a while, immediately buy new ones and replace.

How to replace a metal tape, I think you will clearly figure out the images. The elements of the brake system are presented according to Husqvarna, according to STIHL, the design is similar. The differences are insignificant, for example, in the spring.

Balloon key to switch the brake system of the chainsaw

A few words about the tool that will be needed when repairing the brake system: difficulty will cause switching the trigger. Switching is necessary in order to put the trigger in the necessary position to remove the drive. To switch it, you need to make a key yourself from a universal (combined) key. in the cylinder you need to cut down several faces. Some “masters” use ordinary side sides in this case. I think that you can pick up the round.liners. One way or another, and the lumberjack needs to take care of the analogue in advance, which he will take with him to the forest if he is engaged in the repair in the plot or on the shift.

In order to charge the spring, a large screwdriver is needed, which would not slip into the diameter of the spring, but rested against it.

In order to charge the spring, a large screwdriver is needed, which would not slip into the diameter of the spring, but rested against it. I think this will be found in the arsenal of a tractor driver or “carrier” in the brigade.

How to pull a spring on a trimmer for grass

Make your starter, a gas trimmer for grass, repair of a trimmer for grass, but now we will consider a more common case when the breakdown is not so serious, and show how to repair the starter with your own hands if the cord breaks off without any destructive influences or unwinds due that the inner spring just fell and does not work. At least, firstly, the desire to believe in it. But to find out if this is, you need to make out the starter.

How to repair a gas.based starter with your own hands?

In the case of a break in the starter cord, everything is clear: we take out the old rope, we take the corresponding length and thickness (you can use laundry), pass it through the hole in the coil, tie the knot. Next, we press the spring on the required number of revolutions, only then do we fix the handle. and voila! Details of how it is done below.

Installation or replacement of the starter of the starter of a motor braid for grass, motor drill, trimmer for grass

But what if everything is in order with the rope and the starter coil (pulley) does not roll? Let’s look at this problem step by step on the example of a drill with a gasoline engine ADA Grounddrill, which has a pulley with two metal antennas for 2 hooks.

As for other types of manual starters of this design, which are widely used in gasoline trimmers, trimmers and motor drills, the entire starter repair process will look similar, with several nuances.

Starter repair: disassembly

Loosen the screw with which the pulley is attached to the starter cover. Remove the antennas, spring. The pulley itself is carefully stretched so that the spring does not jump into the face. Even with the most accurate disassembly, it usually immediately flies out of the coil and sharply turns into a long metal strip or twists into the rings.

Carefully stretch the white launch of the starter. Do not damage the spring!

If the spring breaks or breaks one of its hooks and hooks, it is impossible to quickly and quickly repair the starter. It is necessary to replace the spring. In order not to spend money on buying a new starter, you can only look for them for sale.

If the starter’s spring is just broken, t. E. One of the hooks is not fixed, it is enough to insert it if necessary, tightening the hooks a little denser (just do not break it!) Insert the spring from the outer hook into the groove of the pulley and start twist it with your fingers inside the coil. and not allowing this to jump out.

Pressing the spring to the pulley, wind the spring inside in circular movements

The first inclusion of the starter spring may not seem so simple, but everything has experience. Having trained a little, you can easily wrap the spring on the pulley for no more than a minute.

Family Brovchenko. Springing a spring in a manual starter starter.

How to install a spring in a benzo manual trimmer for starter grass? At home, this can be done. to me.

Repair of the starter of the motorcycle, trimmer for grass

Winding of the starter spring is carried out. It remains only to assemble the starter and turn the spring to the desired value.

How to assemble a starter?

The most important thing in the process of self.healing the starter. Correctly assemble it.

After the complete winding of the spring, you must carefully turn the coil and insert it into the starter case so that the second spring hook falls into the groove of the case.

By installing the pulley (black in this photo), we scan the hole in it so that the spring hook gets into the groove on the starter cover.

Then, if there is a spring under the screw, first install it, not forgetting to place the washers from below and from above the spring.

Gently insert the antenna cup into the grooves of the coil and tighten the screw.

Then make sure that the washer located on the spring does not fall out. Why is it important? The fact is that the spring scratches the plastic glass with its end, as a result of which the latter wear out and begins to tighten the screw to the coil more tightly. insert and pull the spring again. Spring about how you are a rooster spring. For this reason, the situation is very similar to a spring break: the handle stretches out of the starter, but does not turn back. However, when the starter screw is unscrewed, this problem disappears. It is not easy to fix such a starter malfunction: just select a spring of the same diameter, but a little longer, or install an additional goal. If you tighten the screw slightly, it will rotate and fly out, which will increase the probability of a spring separation, since the pulley will not fit tightly to the starter case.

How to choose a head for a trimmer for grass From time immemorial, the lawn was considered an elite element of the site, the privilege of the highest class. However, he will look like the king only with proper care: regular watering, fertilizer and, of course, hedgehog.

How to put a chain on the Patriot chain How to change the chain for Partner with a chainsaw how to pull the chain to the chainsaw: instructions and recommendations, professionals perfectly understand that this is not the power of a chainsaw, which makes it a good tool, otherwise.

Which oil is better to use for a trimmer for Husqva grass Hello everyone! In this article I will explain how to use oil for chainsaw. The information presented here is based both on my personal experience of using pollen and on the experience of working as a seller-Cons.

They screwed the coil to the body, now we need to tighten the spring. Before this, it is necessary to remove the starter’s handle from the rope in advance. If the knot is too tight, you can just cut it or try to untie it, for example, with pliers. This is done so that after pressing the spring you can insert the rope into the hole in the starter cover. The other end of the cable should be fixed in the coil until it is installed in the case, there is no need to wind the cable on the pulley before tearing the spring. Do it after.

Before spring comes, evaluate how much rotation of the coil should be wound on a rope. Suppose the length of the rope at the ADA Grounddrill-5 starter is 5.5 revolutions around the coil. In this case, make at least 6 coil turns in the direction of the opposite direction of winding.

So, let’s begin. Without wound, insert the rope into the groove in a specially designed coil. Ready, start pulling the spring. To do this, turn the coil counterclockwise. in the direction opposite the direction of rotation of the coil when winding the rope. This is more convenient to do not on the knees, but by pressing the starter with one hand to the floor, but with the other. turning the coil right behind the rope attached to it. How to fix a starter on a trimmer, do it yourself. How to disassemble and assemble a starter, tighten the spring and replace the cord. If the experience is not enough, the pulley itself can be rotated directly by two hands, but the rope will interfere with it, which can create additional inconvenience. After the required number of revolutions is done, we pass the end of the rope through the hole in the starter cover, put on the handle, fix it with the help of the node. This is more convenient to do with your Partner so that the end of the cable is not accidentally twisted inside the starter.

STRACTION adjustment

The circuit brake often does not work due to clogging with lubrication or sawdust of the brake tape and space under the lid. All parts from blockages should be cleaned. Perhaps the tape simply worn out, then it must be replaced.

The operation of the brake of the backup is restored using mechanical cleaning

Some parts of the chainsaw wear out faster than the rest. These include the leading star, tire, chain, anti.vibration elements. It is better to always have at hand for quick spare replacement at hand. Do not neglect the sharpening of the chain.

Basil is an extremely important tool for owners of private houses and summer cottages. Using it, you can put the garden in order, cut down dried trees and stock up on firewood for a fireplace, bath, heating the house. If you use the saw for its intended purpose, observing the operating rules, it will last a long time. Over time, mechanisms can wear out and can no longer do without repair. In this article you can find a description of how to repair the starter for the chainsaw.

Adjustment of the chainsaw carburetor for the example of Huter BS 45

It should be noted that in the manufacture of Huter chainsaws, the carburetor is not accurately factory settings related to the fact that the test conditions of the composition of the air and fuel differ from the conditions in the real mode of operation.

Therefore, in most cases, the carburetor needs more thorough adjustment, immediately after the primary run.in.

Which carburetor is installed on the chamber bs 45 chainsaw

As mentioned above, this model of the Huter chainsaw line is equipped with a Walbro membrane carburetor. The advantage of such a carburetor is in the ability to dose the quality and amount of the fuel mixture, as well as, unlike floating carburetors, in the ability to work in any position.

Device and principle of operation of the carburetor

The carburetor is one of the most important parts of the chainsaw and serves to mix fuel with air and supply this mixture into the engine combustion chamber.

For self.configuration of the Huter carburetor, it is important to know how it is arranged and understand its principle of action.

Walbro carburetors are easy in the device. Have a monoblock casing of the passage type with a through hole. A diffuser is placed inside the hole. a narrowing of the passage with the fuel injection channel. The shutters are located on both sides: the smaller one is throttle, it regulates the amount of fuel mixture for supply to the cylinder. A larger damper. air, serves to limit the air flow at a cold start.

Carburetor Scheme of the Huter BS-45 chainsaw

In the engine cylinder, a vacuum is created into the carburetor chamber through the membrane pump channel, fuel is dosed in dosage due to the bending of the control membrane and moving the needle to the lower position. The valves and damper are opened due to the pressure difference, thereby letting and directing these elements through the channels to the diffuser, where the air and fuel are mixed, sprayed and entered in the engine cylinder.

What will be needed for adjustment

Before you start adjusting the carburetor, you should prepare the necessary tools, materials and devices that are useful in the process.

You can purchase them in specialized stores. Electronic tachometer for adjusting engine speeds

How to adjust. step.by.step algorithm

The Huter chainsaw carburetor is set up using three adjusting screws

• L. adjustment of low revolutions (is responsible for the quality of fuel);
• H. adjustment of high speeds (is responsible for the amount of fuel);
• T. idle adjustment.

The location of the adjusting screws on the Huter carburetor

In the same manner should set up.

Remember that the tool should be drowned out. Remove dirt and dust in the carburetor area. Set the saw on a stable surface, direct the chain in the opposite direction from you and start setting.

• Previously twisting to the end, the screw l, with the help of a screwdriver, is unscrewed by 2.5 turns.
• Screw h, also twisted in advance to the stop, unscrew by 2.5 turns.
• Run the saw and warm up for 5-10 minutes.
• Heated the saw, slowly tighten the screw l clockwise (the rotation of the screw in this direction impines the fuel, which leads to an increase in the number of revolutions), using the tachometer, you need to find the maximum speed of the engine at idle, and then release the screw by 1/4, counterclockwise.
• Adjust the engine to the engine at maximum revolutions, according to the above principle.
• Further, on the screw t, the idle stroke is adjusted (counterclockwise). It is necessary to set it so that the engine works steadily, without extraneous noise, and until a complete stop of moving the saw chain at idle (if it rotates).
• Start the saw again and check that it works smoothly, without smoke and squeal.

Nuances of settings

It is important to know that the tuning of the carburetor is carried out only after a complete diagnosis of the saw is carried out, the malfunctions of other parts of the chainsaw (air and gasoline filter, the spark plug, the gasket between the engine and the carburetor) are eliminated, eliminated, eliminated.

The gasket through which the HUTER engine is connected and the Huter chainsaw is often out of order (drying out, cracked), the air leaks begins at the defect (the mixture is launched, then enriched), as a result of which the saw ceases to work stably (the saws of the saw begins to swim, is lost. power, failures appear).

When to regulate yourself, and when is it better to give to the service center

You can set up a carburetor independently if there is an idea of ​​its principle of operation, and the sequence of the settings algorithm is precisely performed. If after adjustment at home, stability in the work of the chainsaws is not achieved, you should consult a specialist in order to avoid the irreversible breakdown of your Huter chainsaw.

DIY carburetor repair

The fact that the carburetor needs to be repaired can be determined by the following signs: unstable operation of the motor, excess fuel, engine power, clap.

Huter chainsaw is not considered a difficult tool in disassembly, therefore, in the presence of the initial skills of a locksmith. mechanics, improvised tools and desires, to replace the details yourself will not be difficult.

What can be replaced in a carburetor without addressing a specialist:

• Fuel filter (flushing or replacement). when jerking the engine and sneezing;
• The needle valve. if the needle jams in the valve or floods;
• The diaphragm of the fuel pump. wear;
• The gasket under the lid of the main camera is not tight.
• disassemble and rinse the carburetor, when clogged with an air filter;
• Twist the bolts, with their loss of fixation due to intensive vibration of the chainsaw.

Walbro produces expanded repair kits for self.replacement, including, almost all the parts of the carburetor (fuel inlets, rocking axle, rolling axis, filter nets, membrane).

An important recommendation to avoid a malfunction of the carburetor: do not leave the fuel mixture, in an invalid saw for more than 12 hours, such negligence can lead to blockage of the channels.

Reviews of the owners

Vlad, Odessa:

“In the process of repairing the chainsaws, this situation has developed: the clutch did not give in in any way, did not want to act. Jammed, in a word. Such a “grandfather’s method” helped: the location of the thread was a little heated with a burner, very carefully so that the oil seal would not be damaged. And everything worked out. Maybe someone will come in handy for someone “.

Removing and replacing clutch on a chainsaw. Review, instruction

Chain chainsaws, for various reasons, from time to time need repair. Of course, you can contact a service workshop or to experienced mechanics. However, many problems can be eliminated at home, having only a minimum set of skills and tools.

Answering the question of how to remove the clutch from the chainsaw, we note that this is not a complex operation, if you adhere to the technology of disassembly exactly. The owners of the instrument may face certain difficulties if the chainsaws are used for a long time, and the clutch details have cooked to each other. However, in this case, the disassembly can be done with your own hands.

Repair of the starter of the chainsaw: instructions for each detail (photo and video)

Conduct diagnostics or repair the tool is much easier and more effective, if there is an understanding of the principle of its action. To facilitate and accelerate the process of restoring the starter, it is recommended to know what it consists of and how it works. The overall picture, in the maximum visual and brief presentation, is presented further. Let’s start with the main components of the mechanism:

• Starter cover. the basis of mounting parts and their protection. It is necessary for internal circulation of air, pumped up by rotation of the flywheel, which ensures engine cooling.
• Pen. an external element with the fixed end of the cable wound on the drum and unwound it when stretching from the body.
• Ribbon spring. performs the return of the drum to its original position, winding the cable back.
• Spring body. ensures the isolation of the tape spring and fixes its end to avoid scrolling during tension.
• Starter drum. the central element of the mechanism interacting with all details. Has a hole for fixing and a groove for wrapping a cable.
• Rhound spring. performs an auxiliary role, adding several revolutions after a complete stretch of the cable. Not all models of chainsaws are present and can have a strip or screw shape.
• Khrapovik is the outer part of the drum, with the hook ledges resting on the dog’s dog when pulling out the lever.
• Dogs. spring.loaded stubborn elements conveying rotation from a drum to a flywheel and a crankshaft. The exact shape and location, provide a confident hook of the teeth of the ratchet when stretching the cable, and free move in the opposite direction, when wrapping.

Having examined the main components and their functional purposes, you can shed light on a more urgent topic and disassemble the principle of action of the starter of the chainsaw on the chain of interactions of the details of the mechanism. The launch process begins with pulling the handle, which stretches the cable, thereby promoting the drum with a ratchet. The teeth of the ratchet rest against the dog.fixed on the flywheel, and convey rotation to the crankshaft.

In one second jerk of the handle, the flywheel and the shaft make about 4 revolutions, driveing ​​the entire saw system. During this moment, the fuel-air mixture is supplied to the combustion chamber, and the spark formed in the coil ignites it, pushing the piston, which begins to rotate the crankshaft from the inside of the engine. In most cases, good, cold saw is started from 3-4 jerks, and with a lightweight launch even faster.

Repair procedure

Features of the operation of the starter imply a sharp and gross effect, which sooner or later affects the form of breakdowns. Fortunately, in this mechanism, there is nothing particularly to break and the instructions described further affect all possible causes of malfunctions. Starting with how to restore or how to insert a spring into a chainsaw starter, and ending with the installation of dogs with a flywheel film. Step.by.step guides, sequentially, for each problem.

Restoration of the spring

The most popular case of breakdown is associated with the riding of the mounting ear of the main strip spring that reinss the cable. It is not necessary to search and buy a new spare part, since the procedure requires a minimum of time and tools. Only 2 things will be needed: source of fire (a gas burner or stove) and pliers.

Gently take out the spring from the body. You can put a slotted screwdriver.

At the site of a broken ear, you should make a new one by performing an ordinary bend of the tape. So that the metal does not burst, before the bend it must be heated red.hot and bend it to cool (it is better to do this directly above the fire).

The shape and size of the bended part should be identical to the original in order to tightly fit the restraint to the protrusion. How to tuck a spring into a chainsaw starter and save your nerves, is described below. Before starting installation, wait for complete cooling.

How to install a chainsaw starter spring

The basic dexterity and standard dexterity of the hands, combined with simple technology, will reduce time costs, allowing the operation to quickly and almost naturally. The installation of a return spring begins with a fixing of the ear on the recess, in the direction counterclockwise (if you look at the inside of the spring body).

The tape is invested gradually, layer by layer. The already placed part of the spring adheres to the thumb of the right hand, while the finger of the left laid a new segment. Having put about 1/3 of the circle in the case, the tape is pressed with the thumb of the left hand, the right one is brought to it and the cycle is repeated. The entire installation process takes no more than a minute.

Even easier to insert a new spring purchased as a spare part for the starter. It can be in a fixing winding that is gradually removed when installing. The already twisted element is simply inserted into the case. The easiest option is a ready.made kit with a strip spring in the case, which are put in place of old elements in one motion.

Replacement of the cord

Cases of a cut of the handle cable are quite common and characteristic, both Chinese models and branded manufacturers. Since this connecting element is subjected to serious loads and periodically breaks, the process of cornering is extremely simplified. First of all, it should be determined how long the cord should be on the chainsaw. Depending on the size of the drum and the diameter of the cable, the value is located in the region of 120. 140 cm (necessarily with a small margin). Having prepared a suitable segment, you can take a cross screwdriver and proceed to the replacement.

Remove the starter from the chainsaw and unscrew the central screw on the ratchet.

We take out the drum and remove the old cord.

We spread a new cord through the hole from the inside of the drum groove (for convenience, the ends can be melted with a lighter).

We pull the end from the hole ≈ by 10 cm and tie it into the knot so that the cable does not fly.

Into a special recess under the drum, lay the knot and the remaining part of the cable. In order not to rest against the spring body, it is advisable to leave about 1 cm.

We install the drum in its place, combining the spring with the ear, and press the puck with a puck (do not wind the cord).

We spread the opposite part of the cord through the starter case and the hole in the handle, after which we make a fixing node at the end.

The cord winding is carried out due to the spring. Just slightly pull the cable from the hole in the drum to its edge, and holding it at this point, rotate the drum clockwise. The spring is strained, and when released, the cable itself wraps up. Repeat the procedure until the handle is tightly pressed against the body.

Replacing the ratchet

The main element that transfers rotation to the flywheel is subjected to serious wear in places of contact. The teeth of a plastic ratchet (pulley) resting on dogs (especially iron) have the property of rolling or washing, seriously complicating the launch process. The second problem relates to a ratchet with a lightweight start, connecting to the drum through a spring, which can break off at the mounting site. The strip spring can be restored by following the above instructions, and with a screw chip, the structure will have to be replaced. How to remove and install a ratio of a chainsaw starter is shown further:

Repair of the starter of the chainsaw

Chainsaw is an indispensable tool for the construction and harvesting of firewood. Proper operation with moderate work provides a long life of the tool without breakdowns. However, troubles can arise completely unexpectedly and the serviceable chainsaw is losing performance, and the malfunction can be completely trifling.

The repair of the starter of the chainsaw is presented after a breakthrough of the launch cord. Without a starting cord, a chainsaw becomes completely inoperative. And there is no other way to start the tool. Repair is considered by the example of the chainsaw Partner P350S. The cunning reliable launch of this saw requires at least 4-5 times to pull the launch cord. And this was the first malfunction of the saw. a break of the cord. The cord does not break right away. First, a protective stocking of a cord thread breaks off. This lump interferes with the launch of the saw. It is better not to wait for a cliff of all threads and fix the cord in advance. Do not need to invent anything. Repair should not cause difficulties. True, accurate compliance with the assembly conditions is required. Step.by.step instructions with a scheme of actions with photos and videos are given below.

Dismantling the starter of the chainsaw

• Unscrew three screws of fastening of the starter cover. The key with a screwdriver is suitable for this process, but apply a normal tool.
• Remove the starter. The chainsaw is equipped with a smooth start mechanism, it is located above the coil with a cord.

Installation of a new cord and assembly of the starter

• Cooking a suitable diameter cord 1.2-1.3 meters long. For repair, a nylon linen rope was used :).
• We melt the ends of the rope on the fire so that it does not bloom.
• We tie a complex knot at one end. The knot is required large in diameter. But when installing in a coil should not protrude outside.
• Twist the cord into the coil hole. We do not wound the cord!

Repair of a ragged or damaged cord when using step.by.step instructions will take 15 minutes, which is much faster and cheaper than contacting the Center Service. In my case it is for sure. Watch the video of the repair.

The device of the chainsaw starter

Almost all leading manufacturers of chainsaws complete their products with starters of a similar principle of action. It is no coincidence that specialized stores offer universal designs of starters that are equally successful for both Stihl, Husqvarna, Makita chainsaws, and for Chinese semi.official fakes under the named brands. Only starters of domestic production (forester, Urals and a number of others) have some features only.

The principle of operation of the starter for the chainsaw is as follows. A handle is installed in the groove of the case, through which the cable is missed. If the handle is sharply lifted, the cable is stretched, and introduces the drum of a ratchet that transfers the movement to the drum with the slots provided for the shaft. In this case, the crankshaft makes several revolutions, and the working mixture in the space between the piston and the cylinder head is compressed. Accordingly, when lowering the handle, the contact between the ratchet and the slots is lost, and the shaft stops.

With an increase in the volume of the engine, the required amount of fuel-air mixture required for its subsequent ignition is also growing, so the number of jerks for the starting cable for large power saws increases. Therefore, in order to accelerate the return of the drum, baked return springs made of steels with high elastic properties are used.

The relief of the launch of the chainsaw is realized in the following ways:

• Preliminary enrichment of the working mixture, for which there is a special damper in the design of the carburetor.
• By installing an automatic decompression valve, which provides a decrease in the working pressure in the chainsaw cylinder.
• By installing an additional spring, which during the movement of the cable facilitates the spinning of the crankshaft.
• The presence in the design of some chainsaws (for example, Partner S, Maxcut, etc.) the primer. the pump that provides preliminary pumping of the fuel.

Repair of the starter of the chainsaw

With frequent launches of the chainsaws, some starter details are constantly subjected to dynamic loads. As a result, a cable may burst, several teeth of the ratchet chill, and the shaft will turn out at a much lower speed. Therefore, the audit and even the repair of the starter. operations, sometimes carried out several times per season.

Replacement of the cord

When it is pulled, there is a constant friction of the cable about the starter case. For replacement, disassemble the hull of the node, and carefully lift the rattles in such a way as not to allow jumping from their nests of the return spring. It is better to do such work together: the assistant fixes the spring, while the cable is replaced. After fixing the cable in the handle and in the grooves of the drum, the cable is wound on the roller, and the case is assembled.

Spring repair

If the material of the starter spring is poor.quality, the spring bursts (usually at the place of its connection to the drum, where it forms a loop). Replace the spring in this case is not worth. Carefully clean its surface from dirt and traces of lubrication, gently polish the destruction place, and then release the spring at 600 650 ° C (the spring steel should purchase raspberry color). It is necessary to cool the spring slowly, and at 100 150ºС you can already carefully wrap its end in the shape of a restrictive protrusion on the inner surface of the drum (steel will acquire the necessary plasticity) and insert into place. The elastic properties of the spring will not change.

How to put a spring on a chainsaw starter?

Placing a starter spring in the desired groove is not easy to do with an experienced user. First, the spring should be twisted to the previous diameter and installed in the cavity of the hub of the drum. The outer end of the spring is fixed for the restrictive ledge, and the external using the screwdriver should be placed opposite the holes in the lock. The loop at the inner end of the spring with a screwdriver is combined with the hole, after which the disk is lowered. The disk is checked whether the dog of the ratchet has become in place. Next is the assembly of the ratchet itself.

After installing the spring, it is necessary to adjust its tension. To do this, a cable is inserted into the groove on a circle, and a return spring is twisted around it. After eliminating the slack, it is better to wind the spring at an additional several revolutions to guarantee the required part of the part.

It is not recommended to carry out the repair of the ratchet mechanism itself at home, since many operations will require the use of CNC machine. It’s easier to purchase a new node in specialized stores.