How to Assemble a Trimmer Starter Spring

Posted by Look Tool 1 years ago
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how to assemble the trimmer starter yourself, bend and wind the spring, as well as wind the starter rope. As usual, as you can see, by watching my video you can easily wind the starter spring on the trimmer yourself and without nerves. There is more information about repairing and choosing a tool on our website www.LookTool.Ru come in we are glad to everyone.

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Do-it-yourself high-quality repair of the chainsaw starter

A chainsaw is the main tool with which you can stock up firewood for a bath or fireplace, and you can also use it for construction work on a summer cottage or in a private house. Subject to all operating conditions and the implementation of preventive measures that are provided by the manufacturer, the chainsaw can last a long time. But after a lapse of time, minor malfunctions can occur that can be dealt with on your own. For example, repairing a chainsaw starter with your own hands is quite capable of observing the sequence of operations.

Chainsaw starter device: 1. starter screw, 2. bushing, 3. easy-start spring, 4. screw, 5, 6. starter coil, 7. baffle, 8. starter cover, 9. handle and cord, 10. screw.

Typical malfunctions

The most common tool failures include the following:

  • problems in the ignition system;
  • stopping the chainsaw in the process of cutting;
  • loss of power during operation;
  • wear of some structural elements of the chainsaw (brake band, drive sprockets, anti-vibration parts);
  • problems in the fuel supply system;
  • malfunctions associated with the starter.

In addition, it is necessary to carry out a visual inspection of the chainsaw before starting work and preventive measures. These include chain lubrication, control of the amount of fuel mixture, as well as the presence of the required amount of oil.

Unscrew the spark plug to check its condition.

Each of the faults is eliminated by its technology. So, for example, repair of the fuel system of a chainsaw should begin with an inspection of the appropriate filter. After that, check the carburetor adjustment, which is carried out using screws. Clearances must be set in strict accordance with the manufacturer’s instructions, which must be included with the chainsaw. The repair of the ignition system includes inspections of candles. If a strong deposit is detected, the gap changes or other visible damage is found, this element must be replaced.

Starter repair work

Problems in the operation of the starter may not ensure the launch of the tool. That is, after the cord is pulled, the chainsaw does not start to work.

The causes of the malfunction are:

  • broken or cracked pulley;
  • bursting spring;
  • rush trigger cable.

Before repairing the starter, it is necessary to prepare the tools with which to perform work:

  • a set of screwdrivers or a special tool that is supplied with the tool by the manufacturer;
  • rope, which will be used as a replacement for a torn cord if necessary.

A large amount of black soot on the spark plug indicates a malfunction in the engine.

Before proceeding directly with the repair of the starter and finding out the causes of malfunctions, it is necessary to remove it from the tool body. To do this, unscrew several screws that hold the side cover to which the starter is attached. This is done with a screwdriver or a specialized tool.

After the cover is unscrewed, it is turned over and inspected. Next, unscrew the screw with which the starter is fixed. After that, the clamp and spring are dismantled for a smooth start. Now the pulley on which the cord is wound is available for removal. After the knot on the rope is untied, it can be pulled out from the pulley and replaced with a new one. Provided that the starter’s loss of functionality is connected with a break, this may be sufficient to eliminate the breakdown. However, the remaining parts that make up this element of the chainsaw should be carefully inspected.

When examining the components of the starter, the following malfunctions can be identified:

Most often, damage to the soft-start spring occurs from the end where it is visible when the housing is disassembled.

  1. The pulley may be damaged. Cracks or tears are possible, as well as damage to the rear. As a result of these problems, the tool cannot do the work.
  2. Damage to the soft start spring. In this case, the spring itself may be mechanically faulty, and there may be defects in the place of its attachment. The weakest point of this element is precisely the mounting location and the tip of the spring, which is inserted into it.

If defective or partially damaged starter parts are found, they must be replaced with new ones. At the same time, new elements must correspond to the model of the saw being repaired.

After the repair is completed, the starter must be assembled correctly.

The pulley is mounted on top of the spring. At the same time, it is necessary to check how much they are interlinked. To continue the repair, the pulley must be wrapped. This must be done so that during rotation, he pulls the cord into the starter. It is enough to make 3-4 turns to give the required voltage. Previously, the rope is passed through the hole in the lid of the chainsaw.

Practical recommendations

In order to match the holes for fixing the cord in the pulley and housing, you may need to make a few more turns. A new rope is threaded into the technological hole and a loop or knot is made: this will allow it to slip out of the pulley. The rope is set aside so that it does not interfere with further work. Next, fix the pulley.

First you need to replace the soft start spring. It can be used the same if no damage is found in it. or new if replacement is necessary. On top of the spring set the starter clamp, which is fixed with a special screw. It reliably fixes the clamp for a long time, preventing it from skewing and swaying. After this, you need to make several turns of the rope and run it inward. The cover with the assembled starter is installed in place. Using screws, it is secured.

After the repair and assembly, you can begin to work. Self-repair of the starter does not take much time and does not require complex skills, but it saves time and money if you perform such work in the service center.

Chainsaw repair should be approached responsibly and promptly to carry out preventive examinations, monitor the quality of the fuel and oil used. These simple manipulations will increase the duration of the tool in working condition.

Starter for chainsaw. Learning to repair yourself

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

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.

Video: How to Assemble a Trimmer Starter Spring

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

  1. By preliminary enrichment of the working mixture, for which there is a special shutter in the carburetor design.
  2. By installing an automatic decompression valve, which reduces the working pressure in the cylinder of the chainsaw.
  3. The installation of an additional spring, which during the movement of the cable facilitates the unwinding of the crankshaft.
  4. 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.

Cord replacement

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 put a spring on a 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.

How to Install a Trimmer Starter Spring

Repair of a starter of a gas drill, a petrol-brush, a trimmer do it yourself

We will now examine the more common case when the breakdown is not so serious and show how to repair the starter do it yourself, if the cord breaks without any destructive consequences, or if it does not unwind due to the fact that the spring inside has simply fallen off, it has disengaged. 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 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. how to insert the spring of the trimmer starter Fs 38. Next we cock spring to the speed we need, 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 Mower, a motor-drill, a 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.

In the case of other types of manual starters of the same design, which are widely used in gasoline trimmers, 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 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 disassembly, it usually flies out of the coil immediately and spins abruptly into a long metal strip or twists into rings.

Carefully pull out the white starter coil. do not get hurt by the spring!

If a spring bursts or one of its hooks or hooks breaks, then repair starter it simply and quickly does not work. spring replacement is required. In order not to spend money on the purchase of a new starter, you can only search for it on sale.

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In case the starter spring just broke, that is, one of the hooks is out of engagement, it is enough to insert it, if necessary, slightly tightening 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 while holding it fingers inside the coil and not letting it pop out.

Fill starter spring

Pressing the spring to the pulley, in a circular motion we wind the spring inward

The first time insert starter spring It may not seem so simple, but everything comes with experience. With a little training, you can easily wind the spring into the pulley in a maximum of a minute.

The Brovchenko family. Installing the spring in the starter manual starter.

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Repair of a starter of a Lawn Mower, trimmer

Winding spring starter 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

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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. 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. How to install a spring in a manual starter for benzo Starter repair for brushcutters, trim tabs. The second end of the rope must be fixed in the coil before it is installed in the body, it is not necessary to wind the rope onto the pulley before pulling the spring. do it after.

Before you cock the spring, estimate how many revolutions of the coil the rope should be wound. Let’s say the length of the rope starter The Ada GroundDrill-5 motor drill corresponds to 5.5 revolutions 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. How to install a spring in a manual Detailed description of the repair of the trimmer starter on. 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 is despite the fact that the coil is almost tightly attached to the starter cover and the spring there should not be free to hang up and down, and even more so until the spring comes out of engagement. It turns out that when you snatch the cable spring pulls, 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. how to insert the spring of the starter trimmer Fs 38. How to install the spring in the manual. 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. Alternatively, tighten the screw loosely or replace it with 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 with another malfunction or do you know the best way to repair a starter with your own hands? Ask questions, share your experience with others. together we can solve the problem of frequent starter breakdowns once and for all!


The trimmer for giving

How to Replace a Trimmer Starter Cord

How to repair a starter on a trimmer do it yourself. How to disassemble and assemble the starter, wind the spring and change cord.

How to repair starter on trimmer

Repairing the petrol trimmer starter may be necessary at the most inopportune moment. There are two ways to solve the problem: replace a 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

Gas engine. this is, in principle, the main part of the brushcutter. 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 brushcutters 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 brushcutter 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.

Starter mechanisms of various models of petrol scythes work on the same principle: during the start of the internal combustion engine, the protrusions marked with the number 1 in the photo above 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 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 internal combustion engine, the trigger mechanism rotates its shaft until it starts to work (starts).

Today, gasoline scooters equip starter mechanisms of two types:

Read the same

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.

Repair starter Lawn Mower, trimmer

Chainsaw Starter Cord Replacement

how replace starter cord in a Champion chainsaw. DIY chainsaw repair.

Removing and disassembling the starter, replacing broken parts

To repair the starter trimmer, You will need to disassemble it first, and then assemble it. This process is not particularly difficult. You will need to work shape screwdriver.

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.

Read the same

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 necessary put 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 missing, you can just a little bit unscrew the screw, and the starter assembly will start to work without wedging. 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, 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 gas brush, the breakdowns of the starting mechanisms are the same, so they are repaired in a similar way. There are some nuances associated with their design features.