How to install a chain saw starter spring

Gasoline chain saw starter repair

With frequent chain saw starts, some starter components are permanently subjected to dynamic loads. This can cause the cable to break, some of the ratchet teeth to shatter, and the shaft to rotate at a much slower rate. Therefore revision and even repair of the starter is the operation, sometimes carried out several times a season.

Replacing the cord

As it is pulled, there is constant rubbing of the cable against the starter housing. To replace it, disassemble the housing of the assembly, and carefully lift the ratchet drum so as not to allow the return spring to jump out of its sockets. It is best to do this job with two people: the helper fixes the spring while the cable is being replaced. After attaching the rope to the handle and drum grooves, the rope is wound onto the roller and the body is assembled.

Spring repair

If the starter spring material is of poor quality, the spring will break (usually at its connection to the drum, where it forms a loop). It is not necessary to replace the spring in this case. It is enough to thoroughly clean its surface from dirt and traces of grease, carefully grind the place of destruction, then release the spring at 600 650 ° C (steel spring should get crimson color). It is necessary to cool down the spring slowly, and at 100 150ºС already it is possible to screw its end accurately in the shape of a limiting ledge on an internal surface of a drum (steel will gain necessary plasticity) and to insert it in place. The spring’s elastic properties remain unchanged.

How to install the spring on a chain saw starter motor?

Positioning the starter spring in the correct groove is not an easy matter, even for experienced users. First twist the spring to its former diameter and install it in the hub cavity of the drum. The outer end of the spring is fixed by the limiting projection, and the outer end should be positioned against the hole in the lock with a screwdriver. The hinge at the inner end of the spring is aligned with the hole with a screwdriver, and then the disk is lowered. Rotation of the disk checks if the ratchet catch is in place. Then the ratchet itself is assembled.

After installing the spring, adjust its tension. For this, a wire is inserted into the groove on the circumference and the return spring is wound around it. After elimination of slackness it is better to screw the spring on a few more revolutions to guarantee the required tension of the part.

Repair of the ratchet mechanism itself at home is not recommended, because many operations will require the use of a CNC machine. It’s easier to buy a new assembly at specialty stores.

Repair Procedure

The peculiarities of the starter operation imply sharp and rough impact, which sooner or later will be reflected in the form of breakage. Fortunately, there is nothing much to break in this mechanism, and the following instructions touch on all possible causes of failure. Starting with how to rebuild or put a spring in your chainsaw starter, and ending with removing the handwheel and installing the dummies. Step-by-step guides, step-by-step, for each problem.

Repairing the spring

The most popular case of failure is associated with shear of the attachment ear of the main strap spring, which carries out the winding cable. It is not necessary to look for and buy a new part, as the procedure requires a minimum of time and tools. You need only two things: source of fire (gas burner or stove) and pliers.

install, chain, starter, spring

Carefully remove the spring from the housing. You can pry it up with a slotted screwdriver.

In place of a broken ear, make a new one by making a simple ribbon bend. To prevent the metal from breaking, before bending it should be heated to a red hot and bent until it cools down (better to do it directly over the fire).

The shape and size of the bent part should be identical to the original, so that it fits snugly against the stop protrusion. How to refill the spring in the chain saw starter and save your nerves, told below. But before you install it, wait until it has cooled down completely.

How to install the chain saw starter spring

Basic dexterity and standard manual dexterity, combined with a simple technique, will reduce the time required, allowing you to perform the operation quickly and almost effortlessly. Installation of the return spring begins by locking the ear on the notch, counterclockwise (when viewed from the inside of the spring housing).

Tape insertion is done gradually, layer by layer. The thumb of the right hand holds the already installed portion of the spring, while the left hand finger grips the new portion. After inserting about 1/3 of a circle in the case, the tape is pressed with the left thumb and the right hand is brought to it, and the cycle repeats. The whole installation process takes no more than a minute.

It is even easier to insert a new spring, purchased as a starter part. It can be in a fixing winding, which is gradually removed during installation. Already twisted element is simply inserted into the body. The easiest option is a ready-made set with a tape spring in the housing, which are put in place of the old elements in one movement.

Changing the cord

The cases of breakage of the handle cable are quite common and characteristic for both the Chinese models, and the branded manufacturers. Since this coupling element is heavily stressed and periodically tears, the process of replacing the ear is extremely simple. First of all, you should determine how long the cord should be on the chainsaw. Depending on the size of the drum and the rope diameter, the value is between 120-140 cm (with some extra space required). Having prepared a suitable section, you can take a Phillips screwdriver and proceed to replace.

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

Remove the drum and remove the old cord.

Pull the new cord through the hole from inside of the drum groove (for convenience, you can melt the ends with a lighter).

We pull the end out of the hole for about 10 cm, and tie it in a knot, so the cord won’t come off.

In a special recess under the drum, put the knot and the rest of the rope. In order not to rest against the body of the spring, it is advisable to leave about 1 cm.

install, chain, starter, spring

Put the drum in its place, align it with the ear of the spring and tighten it with the screw and washer (do not wind the cord).

The opposite part of the cord is put through the body of the starter and the hole in the handle, and then make a fixing knot at the end.

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The cord is wound by the spring. Simply pull the rope lightly from the hole in the reel to its edge and, holding it at this point, rotate the reel clockwise. The spring will tighten and when released, it will wind the rope itself. Repeat the procedure until the knob is firmly pressed against the housing.

Replacing the ratchet

The main element that transmits the rotation to the flywheel is subject to severe wear at the contact points. The teeth of the plastic ratchet (pulley) that are resting on the pawls (especially the iron ones) tend to shear off or wear out, making the start process much more difficult. The second problem applies to the easy-start ratchet, which is connected to the drum through the spring, which can break at the attachment point. Ribbon spring can be repaired by following the above instructions, and if the screw spring is chipped, the construction will have to be replaced. How to remove and install the chain saw starter ratchet is shown below:

Remove the starter and unscrew the main retaining screw with a washer.

If the chain saw starter pulley is non-disassembled, then its replacement will require the removal of the cord. Simply untie the knot on the handle and pull through all the holes (handle, body, drum). If the ratchet is demountable and the drum does not need to be replaced, just carefully disconnect them so that the spring does not come out.

Fix the pulley with a screw and washer and install the starter on the chainsaw.

Replacing the dogs on the chain saw flywheel

Worn or damaged thrust elements, causing the ratchet to spin fully or partially when the lever jerks. The problem could be a deformation of the plastic tabs or broken springs. In both cases, defective components should be replaced with identical parts. The most difficult part of the process is removing the flywheel from the engine shaft, although installing new parts will require skill.

Removing the flywheel begins by jamming the piston so that the shaft does not rotate when unscrewing. Simply unscrew the spark plug and shove a small piece of thick rope into the combustion chamber.

After fixing the crankshaft in position, the central nut can be unscrewed.

Even without a retaining nut, the handwheel sits extremely tight on the shaft and is virtually impossible to remove with bare hands. In this case, we can use an ordinary slotted screwdriver. For easy access, you must remove the cylinder cover and disconnect the coil connection wires (if they are in the way).

Having emptied the space we proceed to “docking”. We turn the handwheel with the strong side (opposite to the magnets), and insert a screwdriver into the gap between it and the crankcase. Under no circumstances should it be pushed against the thin part with the impeller, as it is extremely easy to deform it. Gradually drive the screwdriver deeper, while loosening the flywheel on the shaft until it pops out.

The fasteners for the dog clips are on the back side of the handwheel, and can be made with e-clips or common screws. To remove the deformed element, it is sufficient to remove or unscrew the fasteners.

Before installation, a spring is placed on the leg of the part and rests against the upper tab. The lower protruding tail of the spring is pulled up on the same line as the upper and held by a finger.

The completed and “loaded” dog is installed in the hole. The pin is removed from the spring when it begins to rest against the flywheel wall.

Holding the installed doggie from popping out, the flywheel is turned over and the part is secured with a screw or clip.

The adjacent dog is replaced using an identical technique, after which the flywheel is mounted on the shaft and clamped with a washer and nut.

How to replace the starter spring on a chainsaw

If the chain saw starter spring is broken, which is often the case with units of Chinese origin, it must be replaced. It is not necessary to replace the whole starter.

Here are detailed instructions on how to replace the starter spring:

  • Initially, the cage (drum) of the mechanism is removed
  • In the construction of the drum is a spring, which must be removed. Fix its upper part, and pull the handle
  • In place of the old spring should be installed new. Before installing the part, you need to clean the drum housing
  • The new spring is initially placed in the drum, and then needs to get the tendril into the groove
  • Put the drum in place, and mount the starter cover on the tool

Detailed and clear description of the replacement of the starter spring is shown in the video.

How to Repair the Starter on a chainsaw starter | spring installation | स्टार्टर की मरम्मत कैसे करें

To repair the starter on a chainsaw, it will be necessary to find out the cause, and depending on the failure, to eliminate it. If the cover of the mechanism itself is broken, it is easier to replace the device completely. To prolong the service life of the starting mechanism, you need to carry out preventive maintenance of the tool.

Typical chainsaw starter breakdowns and repairs

The emergence of various malfunctions of the starter leads to the inability to start the chainsaw. The most common breakdowns of the starter includes:

To fix each of these problems with your own hands, you will need certain tools. Be sure to carry a set of screwdrivers and a spare rope. Remove and inspect the starter for chain saw must be in the following order:

  • To find the cause of the failure of the starter with a chainsaw will need to remove. To do this, unscrew the screws that hold the protective cover with the starter attached to it with a screwdriver;
  • After removing the cover, you must carefully unscrew the screw by which the starter is attached to the protective cover;
  • Then you need to try to smoothly start the starter. to do this, remove the spring and clamps from it;
  • Next, from the starter for inspection removes the spool with a rope.

As a result of the inspection you may find a number of typical malfunctions. These include:

  • Various damages to the pulley in the form of tears or cracks mainly in the back of the part. they interfere with the normal operation of the whole starter;
  • Damage to the starter soft starter spring. in such cases not only the spring itself may be defective, but also the place of its fixation. this is the most vulnerable part of the spring;
  • The flywheel pawl of the starter is damaged.

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

Chainsaw starter repair

With frequent chain saw starts, some starter motor components are constantly exposed to dynamic loads. As a result, the starter rope may burst, some teeth in the ratchet may get chipped, and the shaft will rotate at a slower rate. Therefore, the revision and even repair of the starter. operations that are carried out sometimes several times a season.

Replacing the cord

When pulling it, there is constant rubbing of the cable on the starter housing. To replace, disassemble the body of the assembly, and carefully lift the ratchet drum so as not to allow the return spring to come off its sockets. It is better to do such work jointly: one helper will fix 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 rewound on the roller and the housing is assembled.

Spring Repair

If the starter spring material is not of good quality, the spring will break (usually at its connection to the drum, where it forms a loop). It is not necessary to change the spring in this case. It is enough to carefully clean its surface from dirt and traces of grease, carefully grind the place of destruction, then release the spring at 600 650°C (steel spring should get crimson color). It is necessary to cool the spring slowly, and at 100 150°C you can carefully coil its end in the form of a limiting lug on the inner surface of the drum (steel will get the necessary plasticity) and put it back. The elastic properties of the spring will not change.

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How to put the spring on the chain saw starter?

Positioning the starter spring in the correct slot is not an easy matter, even for an experienced user. First twist the spring to its former diameter and place it in the hub cavity of the pulley. The outer end of the spring is caught by the limiting projection and the outer end must be positioned against the hole in the lock with a screwdriver. Use a screwdriver to align the hinge at the inner end of the spring with the hole, and then lower the disk. Turn the disc to check that the ratchet catch is in place. Then the ratchet itself is assembled.

After the spring has been installed, it is necessary to adjust its tension. To do this, a cable is inserted into the groove on the circumference and the return spring is wound around it. After slackness has been eliminated, it is better to screw the spring on a few more revolutions to guarantee the necessary tension of the part.

Repair of the ratchet mechanism itself at home is not recommended, since many operations will require the use of a CNC machine. It is easier to buy a new unit in a specialized store.

How to Use the Starter on a Husqvarna

A chainsaw is a basic tool that can be used to get firewood for a bath or fireplace, and it can also be used for construction work on a summer cottage or a private home. If all the criteria of operation are observed and preventive measures provided by the manufacturer are implemented, chain saw can serve for a long time. But after a while there may be small problems with which you can cope without assistance from others. For example, the chain saw starter repair with their own hands on the forces of compliance with the sequence of operations.

Construction of the starter chain saw: 1. starter screw, 2. bushing, 3. spring easy starter, 4. screw, 5, 6. coil starter, 7. deflector, 8. cover starter, 9. handle and cord, 10. screw.

Typical malfunctions

To the more widespread breakdowns of the tool can include the following:

  • problems in the ignition system;
  • stopping the chainsaw while you are sawing
  • Loss of power at work;
  • Wear of some structural parts of the chainsaw (brake belt, drive sprocket, anti-vibration parts);
  • problems in the fuel supply system;
  • Faults in the starter motor.

In addition, it is necessary to create a visual inspection of the chainsaw before performing the work and preventive measures. How to wind the grass trimmer starter spring the starter rope does not coil: how to find out the cause and perform starter repair with your own hands? How to disassemble the starter, plug it in and rebuild it yourself. These include lubricating the chain, checking the amount of fuel mixture, and the availability of the required amount of oil.

Spark plugs are removed to check their condition.

Any of the faults can be repaired in accordance with its own technology. So, for example, repair of chainsaw fuel system should begin with inspection of the appropriate filter. After that inspect the correctness of the carburetor adjustment, which is carried out with the help of screws. The clearances have to be set in close co-ordination with the manual from the maker, which has to be enclosed with the chainsaw. Repair of the ignition system includes inspection of the plugs. If you find heavy fouling, changes in the gap or other visible damage this element must be replaced.

Starter repair

Problems with the starter can not ensure the start of the tool. How to repair chain saw starter how to repair chain saw starter. In other words, after the cord is pulled, the chainsaw does not start working.

Before making the repair of the starter, it is necessary to prepare the tools with which to create work:

Chainsaw starter repair. With their own hands.

on the chainsaw ? How to bend the spring on a chain saw starter ?How to bend the spring.

How to repair chain saw: replacing starter springs

with your own hands. replacing the hand starter spring.

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

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

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

After the cap is unscrewed, it is turned over and inspected. Next, unscrew the screw, with which the starter is fixed. After that, remove the clamp and spring to implement a smooth start. The pulley, on which the cord is wound, is now accessible for removal. Once the knot on the rope is untied, it can be removed from the pulley and replaced with a new. Provided that the loss of starter operation is due to a breakage, this may be enough to fix the breakage. However, the other parts that make up this element of the chainsaw should be carefully inspected.

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Inspection of the starter components may reveal the following faults:

Damage to the soft starter spring is most common at the end where it can be seen when the housing is disassembled.

  • The pulley can be damaged. There may be cracks or tears, and there may be damage on the back. How to insert the grass trimmer starter spring correctly. How to wind the starter spring of a gasoline tool. How to install the spring in how to wind the starter spring repair chainsaw. As a result of these problems the tool cannot do the job.
  • Damage to the softstarter spring. In this case there may be a mechanical defect in the spring itself or a defect in the spring mounting. The weakest point of this element is precisely the mounting place and the tip of the spring, which is inserted into it.

If defective or partially defective starter components are found, they must be replaced. how to wind up a starter spring how to correctly repair chain saw starter. In doing so the new elements must match the model of the saw to be repaired.

After completing the repair is required to properly reassemble the starter.

The pulley is installed over the spring. At the same time it is necessary to check how well they adhere to each other. In the course of the repair the sheave has to be wrapped. How to wind the spring and how to wind the chain saw starter rope.everything as usual. How to make a starter motor on a chainsaw by yourself? How to bend the spring on the chain saw starter? How to wind the spring and how to wind the chain saw starter rope.everything is as simple and easy as usual, and most importantly. This should be done so that when it rotates, it pulls the cord into the starter. It is enough to make 3-4 turns to give the required voltage. First pass a rope through the hole in the chain saw’s cover.

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Practical guidelines

To match the cord fixing holes in the pulley and housing, you may have to do a few more turns. The new rope is put through the technological hole and make a loop or knot: this will allow it to slip out of the pulley. The rope is taken aside so that it does not interfere with further work. Next, it is necessary to secure the pulley.

First you need to install the soft starter spring in place. It can be used the old one if there is no damage to it. or a new one if you need to replace it. On top of the spring is installed starter clamp, which is secured with a special screw. It securely locks the clamp for a long time, preventing it from warping and swinging. After that it is necessary to make a few turns of the rope and run it inside. The cover with the assembled starter set in place. With the help of screws make its fastening.

Chainsaw Recoil Starter Spring (How to Rewind). The Repair Specialist

After completing the repair and reassembly you can start working. how to properly lubricate the chain how to shorten the chain on the mtb repair chain saw starter. Self-repair starter does not take much time and does not require complex skills, but saves time and money if you perform such work in the service center.

It is necessary to approach to chain saw repair responsibly and make timely preventive inspections, follow the quality of fuel and oil used. These simple manipulations will increase the duration of the tool in working condition.

Diagnosing the chain saw starter

If you’ve been using your chain saw a long time, the starter mechanism isn’t working right. After one or more pulls on the starter rope does not rotate the crankshaft. This problem can be caused by the following:

Before starting work on diagnosing and repairing the starter mechanism, it is necessary to prepare the necessary tools and accessories, which will significantly reduce the time for operations. These include:

  • A set of locksmith screwdrivers and a specialized set of brand-name tools included with the chainsaw.
  • Sturdy rope to replace the worn out starter rope.

In the first phase of repairing the chainsaw starter, it is necessary to identify the nature of the problem. To do this remove the side cover on the side of the starting mechanism, unscrewing only a few screws. Depending on the make of the machine a specialised screwdriver or a common metal bench screwdriver is needed for this.

Next, we inspect the inside of the guard. If there are no cracks or chips in the plastic, start the diagnosis. Unscrew the center bolt of the starter and remove the spring. On its surface should not be observed cracks and tears. To find yourself a similar force and number of coils is problematic, so you need the help of specialized centers.

After removing the clamp and the chain saw starter spring, the pulley with the wound cord is available for disassembly. The integrity of the rope indicates that it is necessary to carefully review each of the parts of the starter mechanism.

STIHL 180 in common working conditions

All common STIHL chainsaw faults include:

  • Cord break;
  • Wear a sprocket;
  • The origins are in the oil supply chain system;
  • Wear and tear of the worm gear oil pump;
  • Air entering the engine crankcase through the gaskets;
  • Lack of spark on the spark plug;
  • Lack of fuel supply in the case of carburetor flaws (for them we will stop here, because the repair and adjustment of the carburetor of a chainsaw. Quite a broad issue and will be addressed in a separate article)
  • Detachment from the eye of the seat under the engine control lever.

Now let’s take a closer look at the faults and begin to repair the oil pump.

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Plugging the spark plug

If you see that you are pouring a spark plug on your STIHL chainsaw, there may be a fault in the fuel system. The engine must run on a mixture of gasoline and oil. If the mixture is lean, power is diminished, the cylinder overheats and the saw systems wear out. Wet spark plug on your STIHL chain saw is the result of disproportionate fuel consistency. A lack of air in the consistency of fuel prevents proper combustion.

Introduction of bad gasoline can lead to engine wear.

Lubrication of the spark plug also causes the introduction of oil for 4-stroke engines and piston wear. If this malfunction occurs, you need to remove the gasoline tank cap and adjust the fuel supply. The air intake must be repaired. A clogged filter must be blown with air or it is better to change it. How to clean the filter is described in the manual to your chain saw.

The quality of the consistency can be checked on the insulator of the spark plug. If a brownish color appears on it, it means the consistency quality is normal. A white or sooty color indicates that the consistency is poor or very concentrated.

The spark plug is a prerequisite for grease. You can get intermittent spark formation if the clearance is not set correctly. In the annotation on repair and operation of the device there is a distance between the contacts of the spark plug. If you do not have such data, you can set 0.7-1 mm.

If the gap is smaller, the ignition efficiency of the consistency decreases, if it is larger, there are interruptions in the formation of the spark. To eliminate the over-enrichment of consistency, the motor is blown. In this case, you need to remove the spark plug and turn the crankshaft a couple of times with a hand starter.

The design and principle of operation of the chainsaw starter

Most of the well-known chainsaw manufacturers equip their products with starters that work on basically the same principle. Its essence is the following: in the groove of the body of the saw there is a handle, through which the cord is passed. When the handle is raised sharply, the cord is also pulled, which engages the drum, which is in the ratchet mechanism. This actuates a cylinder with studs, which is located on the shaft. During this, the crankshaft makes a couple of revolutions, resulting in compression of the fuel mixture, which at this moment is between the cylinder head and the piston. When the handle is lowered, on the contrary, the ratchet and the studs lose their contact, which causes the shaft to stop.

Increasing the power of the chainsaw increases the amount of fuel mixture that must be ignited when starting the chainsaw. 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 starter return spring, which has excellent elasticity. Other methods are used by leading brands to make it easier to start a chainsaw:

  • Pre-enrichment of the fuel mixture by means of a separate flap;
  • Installation of an automatic decompression valve, which ensures that the pressure inside the chainsaw cylinder is lowered;
  • Installing a primer designed to prime the fuel before starting the engine.

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

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