Do-it-yourself Trimmer Starter Repair: Disassembling And Assembling, Replacing Cord, Winding Springs • CIMFLOK.COM

DIY trimmer starter repair

The starter is one of the main components of lawn mowers, which greatly facilitates the start of the tool engine. Its breakdown can happen at the most inopportune time, which will certainly entail significant changes in the daily plans of the owner of the site.

There are two ways to solve the problem: repair the trimmer starter with your own hands, or replace the entire assembly. The easiest way to troubleshoot a startup system will be to completely replace it, but from a financial point of view, buying a new starter may seem far too heavy.

To fix the breakdowns yourself, it is enough to prepare a screwdriver with the appropriate tip and familiarize yourself with the following recommendations.

The device and principle of operation of the starter lawn mowers

Lawn mowing starter with details

As with any garden or construction gasoline tool, the trimmer starter consists of a plastic case into which a pulley with a pre-wound cord (shmorgalka) is installed.

In order to automatically twist the rope after a jerk, a starter spring made of alloy steel is fixed on the back of the pulley with a starter. A ratchet is mounted on the front of the pulley, through which the starter engages with the drive shaft of the trimmer motor.

Depending on the manufacturer and design of the lawn mowing pulley, the ratchet pulley can be either one piece or assembled from two separate parts.

The principle of operation of the trimmer starter is practically the same regardless of the model of the unit.

The main components of the trimmer starter

When the starter jerks, the protrusions located on the pulley mesh with the dogs, which, when the ICE is successfully started, diverge in different directions under the action of centrifugal forces.

There are also models where the ratchet is spring-loaded from the side of the housing and when the pulley is rotated backward, the teeth of engagement are removed from the motor shaft.

Of course, with frequent and prolonged use of the trimmer, no one is safe from a broken power cord or wear of the tape spring. Therefore, in this case, you will need to repair the trimmer starter, which you can do it yourself.

The main breakdown of the starter lawn mowers

Currently, two main malfunctions of a gas trimmer starter are common:

Breakage of a power cord (schmorgalka);
Failure of the tape spring or its disengagement from the pulley.

Trim tab spring

In practice, there are cases when, for some reason, the starter housing is damaged and the dangling cord is wound on the motor shaft, which will certainly lead to a spring break and cracks in the housing.

In this situation, local repair of the lawn mowing starter will be impossible and a complete replacement of the engine starting unit will be required. In other cases, troubleshooting will be reduced to replacing the spring or cord.

Dismantling, disassembling the trimmer starter, replacing parts

First of all, the repair process begins with removing the entire starter from the trimmer.

This process is inherently not complicated and will only require unscrewing a few screws with a suitable bench tool.

It should be noted that when dismantling the mechanism for starting the lawn mowers, safety precautions must be observed, since the tape spring in a compressed state has enough energy to injure a person.

Analysis of a starter of a lawn-mowing

This stage allows the wizard to establish the causes of failures of the launch unit, as well as to diagnose individual parts. Disassembly should be carried out in the following sequence:

Unscrew the screws securing the pulley to the starter housing;

Removing the trimmer starter

We remove the spring from the pulley;

Remove the pulley from the starter

Removing the pulley from the seat (first you need to turn your head to avoid injuries);

Pulley removal from the lawn mowing body

Inspection of the tape spring (if it breaks, it is necessary to replace it, and when it disengages with the pulley, put it back).

Removed spring from starter coil

When setting the spring in its original place, it is necessary to install the bent end into the groove and re-tension it with a screwdriver. It should be noted that with excessive force it can burst.

Many experts note that it is quite difficult to mount the spring the first time, therefore, when repairing the trimmer starter, the owner will require not only the basic skills of a locksmith, but also patience.

Trimmer Starter Assembly Sequence

Although the assembly process of the lawn-mowing start-up unit is carried out in the reverse disassembly order, there are several nuances to which special attention should be paid:

The coil with the spring installed must be turned over and mounted in the groove of the starter housing so that all the protrusions are in their original place.

Installing the trimmer coil in the starter housing

We put a steel washer in the central hole of the coil, after which we put a compression spring there;

Installing a compression spring

The next step is to install a plastic cup with a mustache (in the case of a collapsible pulley);

White cup with trimmer coil mustache

We fasten the pre-assembled starter to the body of the gas trimmer.

When assembling the starter, pay attention to the compression spring, which on both sides should be limited by steel springs. If this is not done, then after the first season she will wipe the grooves in the pulley case.

Tape spring tension recommendations

Trimmer Starter Spring Tension

After installing the starter, it is necessary to dismantle the rope handle and insert it into the reel groove.

Further, against the course of the pulley movement at start-up, it is necessary to make a certain number of turns indicated in the instruction manual for the gas trimmer.

It is worth noting that the tension and further performance of the assembly will depend on how to put the spring on the trimmer and what tension to do. At the final stage, we pass a rope into a special hole and fix it with a handle.

Replacing the trimmer starter rope

Installing the starter rope in the trimmer

At the very beginning, it is necessary to remove the tattered cord, select the appropriate length depending on the trimmer model. We pass it through a special hole in the pulley and tie a knot at the other end to prevent the rope from jumping out of the trimmer trigger. Next, we erect the tape spring to the required number of revolutions and mount the handle.

Do-it-yourself trimmer starter repair was last modified: July 17th, 2018 by admin

How to Replace Starter Cord On a Trimmer

How to repair a starter on trimmer

Repairing the petrol trimmer starter may be necessary at the most inopportune moment. With all this, the problem can be solved by 2 methods: replace broken part or change the whole assembly. The latter option will cost more. To repair the device with your own hands in most cases, you will need from the tools only a screwdriver with a suitable tip.

how to replace the starter cord on the trimmer. Starter repair allows you to reel the cord on How to draw on. Repair work does not take much time and does not require special knowledge. How to replace a fishing line on a trimmer. How to replace the cord and Replace the starter cord on.

It’s enough to know the device, the mechanism of work, the aspects of assembly-disassembly starter on the trimmer to achieve a suitable good result.

The device and principle of operation of the starter on trimmer

The internal combustion engine is, in principle, the main part of the lawn mowers. Its power lies in the range of 0.5-2.5 hp. The movement from it is transmitted to the shaft located inside the hollow rod, and then through the gearbox, consisting of gears, already a fishing line or a knife (working body).

Also, the lawn mowers have the following elements:

protective cover;
a pen;
belt designed for ease of use by the device;
starter for starting a gasoline petrol engine.

All details of the lawn mowers are presented in the photo below.

The starter on the trimmer is an integral part that starts the engine into operation. It is depicted separately in the 2 photos below.

The starter mechanisms of different models of lawn mowers work according to a similar principle: during the start of the ICE, the protrusions marked in the photo above with the number 1 enter the hook with the dogs 3. When the engine starts to work, they return to their previous position due to the action of centrifugal force. A similar role is also played by procrastination 2.

The process of returning to the initial position of the parts of the mechanism is due to the presence of a spring, fancy around the axis. It unfolds when the rope is pulled.

After releasing the cord, it is retracted and wound due to the folding of the spring. How to replace the starter cord in a Champion chainsaw. Replacing the manual starter on the engine is small.

During the start of the ICE lawn mowers, the trigger mechanism rotates its shaft until it starts to work (starts).

Today gasoline lawn mowers are equipped with 2 types of starter mechanisms:

The first option is even more common.

The starter on the trimmer can work without breakdowns for a long time. How to replace a fishing line in a Champion T266 trimmer How to wind a fishing line on a mower head. It is impossible to indicate exactly the period of uptime. Everything is determined by the initial quality of the device and compliance with the appeal rules with it.

The main malfunctions of the trimmer starter

It is not difficult to find the cause of the breakdown of the starting device. How to replace It does not stretch the starter cord to the gas reacts like. How to wind a spring and replace the cord. the nuances of the assembly-disassembly of the starter on the trimmer. There are several main options:

breakage of a cord (rope);
when the spring breaks or disengages.

The indicated parts are shown in the photo below.

It may happen that the starter mechanism is broken. The consequences will be deplorable if a tattered rope is wound around the flywheel of an operating ICE: then the spring will burst, the pulley will rip off.

But such cases when a complete substitution is required starter assembly, occur very rarely. In most cases, to fix the mechanism, it is enough to put a new spring or replace the cord.

Repair of a starter of a lawn-mowing, trimmer

Manual starter repair

Manual repair starter more detailed information on the website generator-tomsk.rf Technical service.

Removing and disassembling the starter, replacing broken parts

To repair the trimmer starter, it is useful to disassemble it first, and then assemble it. This process is not particularly difficult. how to replace the cord on the trimmer. How to replace the cord with Replacing the spring and starter cord on. A screwdriver with a suitable tip is useful for work.

Everything should be done carefully, observing safety precautions, mainly so that the spring in case of an accidental departure does not injure the master.

Starter assembly analysis

The start-up mechanism is dismantled in order to establish new parts instead of broken ones in the following sequence:

unscrew the screw fixing the pulley with a starter cover with a screwdriver;
take out the spring and antennae;
carefully remove the pulley (it is necessary to turn your head away or work, wearing glasses and gloves earlier);
determine why the start mechanism has broken;
if the spring has collapsed almost completely, then it is replaced;
when the spring exits the hook, it is installed in its original place by bending the antennae before it (the photo shows the installation process);

after the spring plate is installed inside the groove, carefully twist it.

To change the spring, work should be carefully and accurately: it can accidentally burst under the influence of the force caused by putting it in place. Even if you carefully remove the roller, the spring band very quickly flies off the reel and can injure your hand with its sharpened edges.

Immediately put in its original place spring plate does not always come out. It often slips, so the samples must be repeated until the desired result is achieved.

Starter assembly

Assembly starter assembly carried out in a number of steps:

the coil is turned over, installing it so that the spring bend exactly fits into the groove of the case, as in the photo below;

stack two washers, between which a spring is placed;
put in place a cup with antennae;
tighten the screw (photo on).

When doing the above manipulations, you must certainly put two washers. If this is not done, then the spring will damage the plastic cup over time, and when it is pulled, wedging will begin. Because of this, there is a feeling that the spring has flown. To remove such a defect, it is necessary to install this part of greater length or an additional washer.

When there are no such spare parts, you can simply unscrew the screw a little and the starter assembly will start working without jamming. But this option is temporary. it is better to repair it perfectly as quickly as possible.

Spring tension

After installing the spring, tighten it. To do this, do the following:

remove the handle from the starter cord;
then the rope is inserted into the reel groove;
create a spring tension by rotating the coil in the opposite direction clockwise (winding);
make the required number of revolutions, indicated in the annotation for use to the applicable trimmer model and corresponding to the length of the cord used;
at the very end, the rope is threaded into the hole created for this, located in the lid starter;
put the handle in place, fixing it with a knot.

If after repair the spring continues to fly off, then you can get rid of this in the following ways:

cram a suitable piece of plate into the groove at the location of the spring hook;
drill holes on both sides of the groove in the coil, into which to insert the spring hook and fix it with a wire.

Replacing a torn cord

A torn rope is replaced in the following sequence:

old cord take off;
choose a rope of suitable size (thickness and length);
threading it through a special hole located in the coil, tie a knot;
cock the spring, producing the required number of revolutions;
fasten the handle.

It is better to tighten the spring plate together with the partner so that the edge of the cord does not wound inside the starter mechanism.

It is not difficult to assemble the starter on the trimmer and wind the spring, only this should be done carefully and with caution. Watch how to replace the fishing line on the etr300 trimmer Video!

how to replace fishing line on trimmer ETR300 Video! For different models of lawn mowing, the failures of the starting mechanisms are the same, therefore they are repaired in a similar way.

There are some nuances associated with their design features.

How to insert a spring into the trimmer starter

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

so I wind the springs of the starter of the benzotrimers, but the springs of the starters saws and tillers are wound around.

plm how to put the manual starter spring correctly.

A spring break or a cable breaks on the manual starter (kick starter) of your gasoline or diesel gene.

In this video, I’ll show how you can restore the spring of the manual starter of the tiller. In this case, the tiller.

The video was shot more than a year ago but decided to put it just now. Hands were painted after crushing on a wine press.

How to make a starter on a chainsaw yourself? How to bend a spring on a chainsaw starter? How to wind a spring.

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The video clearly shows how to make a quick starter repair with a soft start. Repair of starter trimmer.

What to do if the manual starter spring constantly flies out. Watch the video.

We repair the broken spring of the benzotrimer starter. The model and brand of the trimer are not indicated since the starter.

Manual starters for gasoline engines with 6.5 hp, 9 hp, 13 hp Starter on the generator 850 for 2-stroke.

Repair the manual starter for more information on the website generator-tomsk.rf Maintenance.

The process of installing a spring and assembling a Husqvarna chainsaw starter (Husqvarna) is shown. Spring, coil and starter.

DIY chainsaw repair. replacing the manual starter spring.

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Modification of the starter (kickstarter) of the tiller. Replacing the starter cord. Bulkhead starter tiller.

How to repair a starter on a trimmer

Repairing the petrol trimmer starter may be necessary at the most inopportune moment. In this case, there are two ways to solve the problem: replace the broken part or change the entire assembly. The latter option will cost more.

To repair the device with your own hands, in most cases you will need from the tools only a screwdriver with the appropriate tip. Repair work does not take much time and does not require special knowledge.

It is enough to know the device, the principle of operation, the nuances of the assembly-disassembly of the starter on the trimmer to achieve the desired positive result.

The device and principle of operation of the starter on the trimmer

A gasoline engine is, in principle, the main part of the lawn mowers. Its power lies in the range of 0.5-2.5 hp. The movement from it is transmitted to the shaft located inside the hollow rod, and then through the gearbox consisting of gears, already a fishing line or knife (working body).

Also, the lawn mowers have the following elements:

protective cover;
lever;
a belt designed for ease of use of the device;
a starter used to start a gasoline internal combustion engine.

All details of the lawn mowers are presented in the photo below.

The starter on the trimmer is an integral part that starts the engine into operation. It is depicted separately in the two photos below.

The starter mechanisms of different models of lawn mowers work on the same principle: during the start of the ICE, the protrusions marked in the photo above with the number 1 enter the engagement with the dogs 3. When the engine starts to work, they return to their previous position due to centrifugal force. A similar role is also played by wires 2.

The process of returning to the initial position of the mechanism elements occurs due to the presence of a spring wound around an axis. It unfolds when the rope is pulled. After releasing the cord, it is retracted and wound due to the folding of the spring. During the start of the ICE lawn mowers, the trigger mechanism rotates its shaft until it starts to work (starts).

To date, gasoline lawn mowers are equipped with two types of starter mechanisms:

The first option is much more common.

The starter on the trimmer can function without breakdowns for a long time. Unambiguously indicate the period of uptime is impossible. Everything is determined by the initial quality of the device and compliance with the rules for handling it.

The main malfunctions of the trimmer starter

It is not difficult to determine the cause of the breakdown of the starting device. There are several main options:

breakage of a cord (rope);
when the spring breaks or disengages.

The indicated details are shown in the photo below.

It may happen that the starter mechanism is accidentally broken. The consequences will be deplorable if a tattered rope is wound around the flywheel of an operating ICE: then the spring will burst, the pulley will rip off.

But such cases when a complete replacement of the starter assembly is required are extremely rare. In most cases, to fix the mechanism, it is enough to put a new spring or replace the cord.

Video: Do-it-yourself Trimmer Starter Repair: Disassembling And Assembling, Replacing Cord, Winding Springs

Removing and disassembling the starter, replacing broken parts

To repair the trimmer starter, you will need to disassemble it first, and then assemble it. This process is not particularly difficult. For work, you need a screwdriver with a tip of the desired shape.

Everything should be done carefully, observing safety precautions, mainly so that the spring in case of an accidental departure does not injure the master.

Starter assembly analysis

Disassemble the start-up mechanism in order to install new parts instead of broken ones in the following sequence:

unscrew the screw fixing the pulley with a starter cover with a screwdriver;
take out the spring and antennae;
carefully remove the pulley (you need to turn your head away or work, having previously worn glasses and gloves);
determine why the trigger mechanism has broken;
if the spring has collapsed almost completely, then it is replaced;
when the spring exits the hook, it is installed in its original place by bending the antennae before it (the photos show the installation process);

after the spring plate is installed inside the groove, carefully twist it.

To change the spring, work should be carefully and accurately: it can accidentally burst under the influence of the force caused by putting it in place. Even if you carefully remove the roller, the spring band flies off the reel very quickly and can injure your hand with its sharp edges.

Immediately put back the spring plate does not always work. It often slips, so attempts must be repeated until the desired result is achieved.

Starter assembly

The assembly of the starter assembly is carried out in a number of stages:

the coil is turned over, installing it so that the spring bend exactly fits into the groove of the case, as in the photo below;

stack two washers, between which a spring is placed;
put in place a cup with antennae;
tighten the screw (photos below).

When doing the above manipulations, it is imperative to attach two washers. If this is not done, then the spring will eventually damage the plastic cup, and when it is pulled, wedging will begin. Because of this, a feeling appears, as if the spring has flown. To eliminate this drawback, you need to install this part of greater length or an additional washer.

When such parts are not available, you can just slightly unscrew the screw, and the starter assembly will begin to work without jamming. But this option is temporary. it is better to repair it qualitatively as quickly as possible.

Spring tension

After installing the spring, tighten it. To do this, perform the following steps:

remove the handle from the starter cord;
then the rope is inserted into the reel groove;
spring is tightened by rotating the coil in the opposite direction to the clockwise direction (winding);
make the required number of revolutions indicated in the operating instructions for the used trimmer model and corresponding to the length of the cord used;
at the very end, the rope is threaded into the hole provided for this, located in the starter cover;
put the handle in place, fixing it with a knot.

If after repair the spring continues to fly off, then you can get rid of this in the following ways:

cram a suitable piece of plate into the groove at the location of the spring hook;
drill holes on both sides of the groove in the coil, into which to insert the spring hook and fix it with a wire.

Replacing a torn cord

A torn rope is replaced in the following sequence:

the old cord is removed;
choose a rope of suitable size (thickness and length);
threading it through a special hole located in the coil, tie a knot;
cock the spring, producing the required number of revolutions;
fasten the handle.

It is better to tighten the spring plate together with the partner so that the edge of the cord does not wound inside the starter mechanism.

It is not difficult to assemble the starter on the trimmer and wind the spring, only this should be done carefully and with caution. For different models of lawn mowing, the failures of the starting mechanisms are the same, therefore they are repaired in a similar way. There are some nuances associated with their design features.

How to Wind a Trimmer Starter Spring

The starter cable does not roll up: how to find out the cause and repair the starter with your own hands? How to disassemble the starter, stick and pull the spring yourself again

Do-it-yourself starter repair for gas drills, lawn mowers, trimmers

Whatever high-quality gasoline equipment you use, in the process of construction, anything can happen to it, at the same time at the most inopportune moment for this. Often difficulties arise due to a breakdown of the starter. Starter change benzotrimmer zigzag.

But now we will examine the more widespread case when the breakdown is not so serious and show how to repair the starter with your own hands, if the cord breaks without any destructive consequences or does not unwind due to the fact that the spring inside has simply fallen off and is out of gear. At the very least, at first the desire is to believe in it. But in order to find out whether it is so or not, it will be necessary to disassemble the starter.

How to repair starter do-it-yourself petrol tool?

In the case of a break in the starter cord, everything is clear: we take out the old rope, take a suitable length and thickness (linen possible), thread it through the hole in the coil, tie a knot. Next, we cock the spring to the required number of revolutions, only after that we fix the handle and voila! details on how all this is done are shown below.

Installation or replacement of a starter spring of a lawn-mowing, motor-drill, trimmer

But what if we have everything in order with the rope, and the starter coil (pulley) does not reel? Let’s take a look at this step by step example of an ADA GroundDrill gasoline motor drill starter with a pulley with 2 metal antennae on 2 hooks.

How to Replace a Rope on a Trimmer

Do-it-yourself starter repair for gas drills, lawn mowers, trimmers

Whatever high-quality gasoline equipment you use, in the process of construction, anything can happen to it, at the same time at the most inopportune moment for this. How to repair a starter on a trimmer do it yourself.

How to disassemble and assemble the starter, wind the spring and replace the cord. Often tasks appear due to a starter breakdown. How to disassemble the trimmer coil. How to quickly replace a fishing line on a trimmer video like.

How to repair a gasoline engine starter with your own hands?

In the case of a break in the starter cord, everything is clear: we take out the old rope, take a suitable length and thickness (linen possible), thread it through the hole in the coil, tie a knot. Next, we cock the spring to the required number of revolutions, only after that we fix the handle. and voila! details on how all this is done are shown below.

Installation or replacement of a starter spring of a lawn-mowing, motor-drill, trimmer

In the case of other types of manual starters of the same design, which are widely used in gasoline lawn mowers, trimmers and motor drills, the entire process of repairing the starter will look similar, differing only in certain aspects.

Starter Repair: Disassembly

Unscrew the screw that secures the pulley to the starter cover. We take out the antennae, spring. The pulley itself is pulled out carefully so that the spring does not bounce into the face. Even with the most accurate dismantling, it usually flies out of the coil immediately and spins abruptly into a long iron strip or twists into rings.

Carefully remove the snow-white starter coil. do not get hurt by the spring!

If the spring bursts or one of its hooks and hooks breaks, then repair starter it simply and quickly does not work out. a spring change is required. In order not to waste money on buying a new starter, you can only find it on sale.

In case the starter spring just broke, that is, one of the hooks is out of engagement, just stick it in, if necessary, slightly tighten the hooks more tightly (just do not break it!) Install the spring with an external hook in the groove of the pulley and start twisting it, immediately holding fingers inside the coil and not letting it pop out.

Fill starter spring

Pressing the spring to the pulley, we radially wind the spring inward

From the first try, sticking the starter spring may not seem so simple, but everything comes with experience. With a little training, you can effortlessly wind the spring into the pulley for a maximum of a minute.

Repair of a starter of a lawn-mowing, trimmer

Replacing the rope in the starter on a two-stroke children’s motorcycles MOTAX

The video shows and describes in detail how replace the rope in a starter on a baby two-stroke motorcycles

Winding the starter spring is done. It remains only to assemble the starter and cock the spring to the desired value

How to assemble a starter?

The most important thing in the process of self-repair of the starter is to assemble it correctly.

After the spring is fully wound, you need to carefully turn the coil and insert it into the starter housing so that the second spring hook enters the groove of the housing.

When installing the pulley (black in this photo), we look through the hole in it so that the spring hook falls into the groove on the starter cover

Then, if there is a spring under the screw, we first install it, without forgetting to put washers on the bottom and top of the spring.

Carefully insert the cup with the antennae into the grooves of the coil and tighten the screw.

Then watch that the washer located on a spring did not drop out. Why is it important? The fact is that the spring scratches the plastic cup with its end, as a result of which the latter wears out and begins to more tightly press the screw against the coil. For this reason, a situation may arise that is very similar to a spring break: the handle is pulled out of the starter but not returned.

However, when loosening the starter screw, this problem disappears. To fix such a malfunction of the starter is simple: just pick up a spring of the same diameter, but a little longer, or put an additional washer.

If we just tighten the screw slightly, it will twist and fly out, and this will increase the likelihood of spring breakage, since the pulley will not fit snugly against the starter housing.

They screwed the coil to the body, now we need to tighten the spring. Before this, it is necessary to remove the starter handle from the rope in advance. How to replace inspect everything on the trimmer on the drive shaft (for evenness.

If the knot is too strong, then you can simply cut it off or try to untie it, for example, using a pair of pliers. This is done so that after you cock the spring, you can thread the rope into the hole in the starter cover.

The second end of the rope must be fixed in the coil before it is installed in the body, the rope it is not required to wind onto a pulley before pulling the spring. do it afterwards.

Before you cock the spring, estimate how many revolutions of the coil the rope should be wound. Suppose the length of the rope at the starter of the Ada GroundDrill-5 motor-drill is 5.5 turns around the coil. In this case, make at least 6 revolutions of the coil in the direction opposite to the direction of winding.

So let’s get started. Without reeling, insert the rope into the groove in the reel specially designed for it. Everything is ready, proceed to pulling the spring. To do this, rotate the coil counterclockwise. in the opposite direction to the direction of rotation of the coil when winding the rope.

It is more convenient to do this not on the knee, but by pressing the starter with one hand to the floor, and with the other turning the coil directly behind the rope attached to it.

If the experience is not enough, then the pulley itself can be rotated directly with two hands, but the rope will interfere with this, which can create additional inconvenience.

After the necessary number of revolutions is done, thread the end of the rope through the hole in starter cover, put on the handle, fix it with a knot. It is more convenient to do this together with a partner, so that accidentally the end of the cable does not wound inside the starter.

By the way, on our own you can make some refinement in the design of the starter in order to more securely fix the end of the spring inside the coil. Then anyone has enough imagination. Now I will explain why this is necessary.

It often happens that the spring in starters of this type after the first such independent repair and installation of the starter on the unit flies again after a few jerks. the hook does not hold in the recess of the coil.

And this despite the fact that the coil is almost tight starter cover and the spring there shouldn’t have any way to freely hang up and down, and even more so until the spring comes out of engagement. It turns out that when the cable is pulled, the spring pulls out, pulls out of the groove.

In this case, you can do the following: cut a narrow strip of metal, which in thickness could be squeezed into the groove of the coil along with the spring hook itself. So the hook will not freely hang in the groove, which means it will not be so easy to break out.

A metal plate tightly inserted into the gap between the spring hook and the groove walls will hold the spring securely

Another way to solve the problem is to drill small holes in the coil on both sides of the groove and, having inserted the spring hook, fix it with a thin wire threaded through these holes.

But here you need to manage to make sure that this wire does not touch during rotation of the starter cover from the inside and thus does not slow down the pulley. How to replace the cord on the trimmer. And it is told how to replace the rope in the starter with.

Alternatively, tighten the screw loosely or replace its on a similar slightly larger length. You can consider the option of installing some kind of gasket between the cover and the coil.

Is the design of the starter for your gas tool different from the above? Faced another malfunction or know the best way to repair a starter do it yourself? Ask questions, share your experience with others. together we can solve the problem of frequent starter breakdowns once and for all!

Chainsaw starter: device, breakdowns and DIY repair

In the design of the chainsaw, the starter is responsible for the proper starting of the tool engine. Over time, owners of chainsaws are faced with the need to repair this important component. And, the earlier it is possible to eliminate the malfunction, the less other important details and mechanisms of the tool will succumb to wear.

The device and principle of operation of the chainsaw starter

Most well-known manufacturers of chainsaws equip their products with starters that work on almost the same principle. Its essence is as follows: in the groove of the saw body there is a handle through which a cord is passed.

With a sharp lifting of the handle, the cord is also pulled, which engages the drum, which is in the ratchet mechanism. By means of this, a drum with spokes is mounted, which is located on the shaft.

During this, the crankshaft makes a couple of revolutions, which leads to compression of the fuel mixture, which at this moment is between the cylinder head and the piston. When lowering the handle, on the contrary, the ratchet and spitz lose their contact, which leads to a shaft stop.

With an increase in the power of the chainsaw, the amount of the fuel mixture increases, which must be ignited when the chainsaw is started. In this case, to start the engine, it is necessary to increase the number of jerks of the starter cord.

To accelerate the return of the drum mechanism, manufacturers use a special steel recoil starter spring with excellent elasticity.

To facilitate the launch of chainsaws, leading brands use other methods:

Pre-enrichment of the fuel mixture with a separate shutter;
Installation of an automatic decompression valve, which provides a decrease in pressure inside the cylinder of the chainsaw;
Installation of a primer designed for pumping fuel before starting the engine.

The use of one of these technologies greatly facilitates the launch and extends the life of the starter, which is especially noticeable at low temperatures.

Typical breaks and repair of a chainsaw starter

The appearance of various malfunctions of the starter leads to the inability to start a chainsaw. The most common starter breakdowns include:

The starter pulley has completely burst, or cracks have appeared on it;
The spring burst;
The starter cable broke.

Do-it-yourself tools will be required to fix each of these malfunctions. You must have a set of screwdrivers and a spare cable with you. Remove and inspect the starter for the chainsaw in the following order:

To find the cause of the breakdown, the starter from the chainsaw will need to be removed. To do this, unscrew the screws with which the protective cover with the starter attached to it is held;
After removing the cover, you must carefully unscrew the screw through which the starter is attached to the protective cover;
Then you need to try to smoothly start the starter. for this, remove the spring and clamps from it;
Further, a coil with a cable is removed from the starter for inspection.

As a result of inspection you can find out a number of typical malfunctions. These include:

Various pulley damage in the form of tears or cracks mainly in the rear of the part. they interfere with the normal operation of the entire starter;
Damage to the starter spring of a light start. in such cases, not only the spring itself can be faulty, but also the place of its fixation. this is the most vulnerable part of the spring;
The starter flywheel dog is damaged.

In any case, any defective part must be completely replaced with a new spare part.

How to replace the chainsaw starter spring?

In order to replace the old spring in a disassembled starter, proceed in the following order:

Before installing the chainsaw starter spring, you will need to remove the clip of the mechanism. this should be done very carefully so as not to break the part;
Then you need to look inside the cage. in it you will see a spring wrapped around a C-shaped element. To pull out the spring, fix the upper part with your finger and slightly pull the starter handle to the side;
After removing the old spring, wrap a new part. At the same time, try to avoid kinks and twisting of the new spring element;
To assemble the spring of the starter of the chainsaw, you will need to act as carefully as possible, otherwise one incorrect movement can lead to unwinding of the spare part;
After you have managed to fully insert the spring into the starter, you must carefully lock the clip.

At the last stage, it remains only to assemble the chainsaw starter and try to start the tool. It is possible that you will have to make 10 to 20 jerks. this is necessary in order for the spring to finally fall into place.

Self-replacement of the starter cord and chainsaw starter spring (trimmer)

To quickly start any chainsaw, a starter is required. With accelerated scrolling of the crankshaft of the tool, the fuel-air mixture supplied to the engine is compressed and its subsequent ignition. Therefore, the normal operation of the starter for a chainsaw determines the operability of the entire mechanism.

Chainsaw starter device

Almost all the leading manufacturers of chainsaws complete their products with starters of a similar principle of action.

The principle of operation of the starter for a chainsaw is as follows. A handle is installed in the groove of the body through which a cable is passed. If the handle is sharply raised, the cable is pulled out and engages the drum of the ratchet mechanism which transmits movement to the drum with splines provided on the shaft.

In this case, the crankshaft makes several revolutions, and the working mixture is compressed in the space between the piston and the cylinder head. Accordingly, when lowering the handle, the contact between the ratchet and the splines is lost, and the shaft stops.

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

Facilitation of starting a chainsaw is implemented in the following ways:

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

Chainsaw starter repair

With frequent starts of the chainsaw, some parts of the starter are constantly subjected to dynamic loads. As a result, the cable may burst, several teeth of the ratchet may crumble, and the shaft will turn at a much lower speed. Therefore, the audit and even repair of the starter are operations that are sometimes carried out several times during the season.

CHANGE THE CORD

When it is pulled, the cable is constantly rubbed against the starter housing.

For replacement, the assembly of the assembly is disassembled and the ratchet drum is carefully lifted so as to prevent the return spring from jumping off its sockets.

It is better to do this work together: the assistant fixes the spring, while the cable is being replaced. After fixing the cable in the handle and in the grooves of the drum, the cable is wound on the roller, and the body is assembled.

SPRING REPAIR

If the starter spring material is poor, the spring bursts (usually at the point of attachment to the drum, where it forms a loop). Replace the spring in this case is not worth it.

It is enough to thoroughly clean its surface from dirt and traces of lubrication, carefully grind the place of destruction, and then release the spring at 600. 650 ° C (the spring steel should acquire a crimson color).

It is necessary to cool the spring slowly, but at 100. 150 ° C it is already possible to gently wrap its end in the form of a limiting protrusion on the inner surface of the drum (the steel will acquire the necessary ductility) and put it back. The elastic properties of the spring will not change.

HOW TO SUPPLY THE SPRING TO THE CHAINSAW STARTER?

Putting the starter spring in the desired groove is not easy, even for an experienced user. First, the spring should be twisted to the previous diameter and installed in the cavity of the drum hub.

The outer end of the spring is fixed by the limiting protrusion, and the outer one should be positioned opposite the hole in the lock with a screwdriver. The loop at the inner end of the spring with a screwdriver is combined with the hole, after which the disc is lowered.

By rotating the disk, it is checked whether the ratchet mechanism dog is in place. Next, the ratchet itself is assembled.

After installing the spring, you must adjust its tension. To do this, a cable is inserted into the groove on the circumference, and a return spring is twisted around it. After removing the slack, it is better to wind the spring an additional few turns to ensure the required tightness of the part.

DIY chainsaw starter repair: how to put the spring, assemble, pull

If there were difficulties during the start-up of the tool, power was lost or there were malfunctions in the fuel supply system, it is necessary to repair the chainsaw starter with your own hands or give the tool to the service.

Device

The chainsaw starter device includes the following elements:

ignition screw;
return spring;
launch system coil;
deflector;
cap;
magneto;
drum;
spark plug;
the electronic unit;
wiring;
power button;
handle and cable.

Key parameters of the chainsaw launch system:

power. from 2000 to 2500 W;
maximum number of revolutions per minute. 3000;
weight. 0.5 kg.

An electromotive force appears in the system. The appeared current with the help of an electronic unit is converted into electrical signals that are transmitted to the driving elements. A spark forms, which provokes the ignition of the fuel-air mixture.

How to repair a starter on a chainsaw

The cause of a malfunction in the chainsaw launch system may be:

Drive pulley. This part is subjected to high axial and radial loads, so before starting work it is recommended to inspect the pulley for damage and cracks on the back of the case. If necessary, repair the part or replace it with a new one.
Spring mechanism. If it has lost its properties or there are cracks or breaks on it, it is necessary to replace this element. It is also recommended to inspect the attachment points for defects.
Rope launch system. The rope should be inspected for wear and damage. If necessary, replace the part and install it on the pulley.

Diagnostics

Diagnostics of the tool launch system is carried out as follows:

Unscrew the fixing screws and remove the cover.
The screw that secures the mechanism to the protective cover is loosened.
Gently start the starter by removing the spring and clamps from it.
To inspect for wear and defects, dismantle the coil with a cable.
Check the fuel system for water in it. If there is water inside the system, the fuel fluid must be replaced.
Inspect the power unit for overfilling with fuel fluid. In this case, you need to unscrew and dry the spark plug, pull the starter, dismantling the air damper.
Check the spark plug for a spark.

Cord replacement

In order to replace the cord, the following tools will be required:

Replacing the starter cord is as follows:

Unscrew the fixing screws that hold the side cover with a screwdriver.
Then remove the starter from the tool body.
After that it is necessary to turn the cover and conduct an inspection.
Then dismantle the clamp and spring.
Untie the knot on the rope.
It is necessary to pull out the pulley on which the cord is wound. Remove the cord and replace it with a new one.
Then put the pulley in place and tie the rope into a knot. Install the clamp and spring.
Then tighten the cover with the fixing screws.
At the end, reinstall the starter and tighten the fixing screws.

Spring repair

Procedure for repairing the launch system spring:

Remove the starter from the tool body.
Remove the protective cover.
Wind the cord from the end of the pulley to prevent the mechanism from rolling.
Thread the other end of the cord into the opening of the protective cover.
Pull the cord 17-20 cm to check the rotation of the pulley of the spring mechanism.
Check the operation of the spring after pulling and releasing the mechanism.
Unscrew the pulley circle from the side of the generator by removing the 3 fixing bolts.
Remove the pulley and cord.
Check the condition of the parts for wear and damage and breaks. If the spring break is small, then the defect can be eliminated by welding.

How to put a spring

In order to install a new spring, you must perform the following steps:

Carefully remove the clip of the mechanism.
Inspect the inside of the cage, in which the spring mechanism is located near the C-shaped element.
Lock and pull the upper part of the spring with your finger and pull the trigger handle to the side.
Remove worn gear and wind new spring. Kinks and twists of the element should be avoided.
Assemble a new spring mechanism. It is recommended to do this slowly so that the mechanism does not unwind.
Fill the spring and insert it into the starter mechanism.
Gently lock the clip.

Starter replacement

Procedure for replacing the chainsaw starter:

Remove the assembly from the tool body.
Unscrew securing bolts and dismantle side cover.
Loosen the fixing screw that secures the starter.
Remove the clip and the spring mechanism of the trigger system.
Remove the pulley with the cord.
Replace all worn and damaged items.
Winding the pulley.
Install a new starter.
Replace the pulley with cord, clamp and spring.
Screw on the side cover and install the assembly on the chainsaw body.

Before installing a new starter, it is recommended to inspect it for defects, check the build quality and the presence of the guide sleeve.

How to make a DIY chainsaw starter repair Link to the main publication

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