How to make a starter on a chainsaw. If the starter jams
How to repair the starter on a chainsaw
Although chainsaws have different names, they are structurally similar. The starters of gasoline-powered machines, by means of which the engine is started, also have a similar. Mechanisms for starting the engine are suitable for different brands of chainsaws STIHL, Husqvarna, Dolmar, Makita and others. Structurally, the chain saw starter consists of the following elements:
- The drum on which the rope is wound
- The rope that drives the crankshaft of the tool
- Handle for easy use of the mechanism
- A wireframe with a spring that winds the cord around the drum (returns to its original position) when the sawyer starts the motor
The working principle of this device is simple. When the handle of the mechanism is suddenly raised, the cable is pulled. The rope engages with the ratchet, transmitting the movement to the splined drum. This is how the crankshaft moves, making several revolutions. This is when the mixture is compressed in the cylinder. As soon as the handle returns to its original position, the ratchet-spline connection separates and the shaft stops rotating.
The amount of air-fuel mixture in the cylinder increases with every subsequent pull of the rope. To make the cable return to its original position, the construction of the starting mechanism uses return springs. They are made of resilient steel. It is this spring that is often the cause of the unit starter malfunction, which can be repaired.
Chainsaw starter motor design
Almost all leading chainsaw manufacturers equip their products with starters of similar working principle. It is no coincidence that specialized stores offer universal designs of starters that are equally suitable for STIHL, Husqvarna, Makita chainsaws, as well as for the Chinese semi-official imitations of these brands. Only chainsaw starters of domestic production (Lesnik, Ural and a number of others) have some features.
The principle of the chainsaw starter is as follows. In the groove of the housing is installed handle, through which the cable is passed. If the handle rises sharply, the cable is pulled out and engages the drum ratchet mechanism which transmits the motion to the drum with slots provided on the shaft. In doing so the crankshaft makes some revolutions and the working mixture in the space between the piston and the cylinder head is compressed. Accordingly, when lowering the handle, the contact between the ratchet and the splines is lost and the shaft stops.
As the engine volume increases, so does the amount of fuel-air mixture required for its subsequent ignition, so the number of jerks for the starter rope for high-powered saws increases. In order to speed up the reel return, it is necessary to use wound return springs made of steel with high elastic properties.
To make it easier to start the chain saw, you can do this by
- Pre-enrichment of the working mixture, for which there is a special flap in the carburetor design.
- An automatic decompression valve is installed to reduce the working pressure in the chainsaw cylinder.
- By installing an additional spring, which facilitates the unwinding of the crankshaft while moving the cable.
- Some chainsaws (e.g. Partner S-series, Maxcut, etc.) are equipped with a starter motor that can be used with a chain saw.) of primer. a pump that provides pre-pumping of fuel.
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How to repair chain saw starter with your own hands
Repair Partner chain saw starter / Breakage of the starter cord
Here’s how to repair chain saw starter after a broken starter cord. Without a starter cord, a chainsaw becomes completely inoperable, there is no other way to start the tool. Repair is examined using a chainsaw Partner P350S, clever reliable starting this saw requires a minimum of 4-5 times to pull the starter cord to make the saw work, so I guess the first problem was a cliff cord. The cord does not break right away, first the protective cord strap is torn and prevents the saw from starting. Better not to wait for all the threads to break and have the cord repaired beforehand. It is not necessary to invent anything, the repair should not cause difficulties, but the exact observance of the conditions of assembly is obligatory. A step by step instruction with a photo and video is below.
Remove the three screws fixing the starter cover. The included spark plug wrench with a straight screwdriver will do for this process, but to speed up the work it is better to use a normal tool.
Remove the starter. The chainsaw is equipped with a soft starter and is located above the cord reel.
We unscrew the screws fixing the soft starter and the starter spool. Take care not to lose the washer!
Starter removed Unscrew the screw Screw unscrewed
Soft starter Soft starter coil removed
Prepare a cord with a suitable diameter and a length of 1.2-1.3 meters. For the repair we used a kapron clothesline :).
Melt the ends of the rope in the fire to prevent unraveling.
How to Repair the Starter on a Chainsaw
Tie a big knot at one end. The node needs to be large in diameter, but when installed on the spool it should not protrude.
Threading the cord into the spool hole. Do not coil up the cord!
Reinsert the spool. There may be an assembly error here. The spool has two slits, one of which should catch the spiral spring. Insert the spool so that it is firmly seated and the catch caught in the slot. Check by turning the spool clockwise to see if a return force is generated.
The assembly on the cord The cord is fastened Spring protrusion
Install the soft starter. The lug of the mechanism should fit into the recess of the coil.
Screw in the retaining screw and washer.
Tuck the other end of the cord into the outlet.
Installation of the soft starter The screw is screwed on The cord is coming out
Tuck the cord into the starter grip. Make a big knot at the end of the rope. With a small knot there is a chance of slipping a rope and the whole cord will be wrapped in the starter and to get it out the starter will have to remove again. Check the reliability of the node. See photo.
Cord in the starter handle Fixing knot Handle on the cord Twist the spiral
The most important moment! Let the cord loop inside the starter and start turning the starter mechanism clockwise without winding the cord! For this saw it is necessary to make at least five revolutions. Fix the coil by hand. Tighten the loop by the handle outward. Holding the cord and mechanism, let the cord wind up on the spool. Watch the video.
Reinstall the starter and fasten it with the three screws. Repairs have been made.
It takes 15 minutes to repair a broken or damaged cord, using the step-by-step instructions, which is much faster and cheaper than going to a service center.
If the instruction helped you, tell us in Комментарии и мнения владельцев.
Chainsaw Recoil Starter Spring (How to Rewind). The Repair Specialist
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How to repair chain saw starter with your own hands
Broken cord Presented repair of chain saw starter after breaking the starter cord. Without the starter cord, the chain saw is completely nonfunctional. And there’s no other way to start the tool. This repair is a case study of a Partner P350S chain saw. The tricky reliable starting of this saw requires at least 4-5 times pulling the starter cord. And that was the first thing that went wrong: the cord broke. The cord doesn’t break right away. First, the protective stocking of the cord strings comes off. This lump prevents the saw from starting. It is better not to wait for all strings to break and to repair the cord beforehand. You don’t have to invent anything. Repair should be no problem. But the exact observance of the conditions of assembly is obligatory. Step-by-step instructions with the scheme of actions with photos and video are given below.
Disassembling chain saw starter
- Unscrew the three screws fixing the starter cover. The wrench and screwdriver included will do for this process, but use a normal tool.
- Removing the starter motor. The chainsaw is equipped with a soft-start mechanism, and it is located above the cord reel.
Soft starter mechanism
The spool is removed After taking apart the starter and removing the remains of the old cord, you may begin the repair
Installing the new cord and reassembling the starter
- Prepare a cord of suitable diameter and a length of 1.2-1.3 meters. Used kapron clothesline for the repair :).
- Melting the ends of the rope in the fire, so it will not unravel.
- Tie a hard knot at one end. The knot is needed big in diameter. But it should not protrude when installed in the reel.
- Tuck the cord into the hole in the spool. The cord is not wound!
Knot on a cord
Protrusion of the spring
Installing the Softstarter
The screw is fastened
Rope protrudes outward
Renovated starter Repair of a broken or damaged cord using the step-by-step instructions will take 15 minutes, which is much faster and cheaper than going to the service center. In my case, it’s definitely. See repair video.
Saws for gasoline-powered saws
Depending on the type of use and accordingly the technical characteristics possessed by the various chainsaw models, they are qualified as follows:
Household. designed for not continuous work and performing non-complex operations. Lightweight and compact in size, easy to maintain and operate. They can be used for up to 1.0 hour a day.
Semi-professional. used in various fields of construction, in different spheres of human activity. Are universal type of this type of tool. Duration of use. up to 10.0 hours a day.
Professional. are used for industrial volumes of lumber production, continuous use (up to 16.0 hours a day) in a year-round cycle of operation.
Комментарии и мнения владельцев 38
I thought, looked, chose, and bought a Huska, but not the one that is “newer” and an older model, the so-called American, a neighbor that is newer, but one hundred percent even though the Swedish, but Chinese, so even the sound they differ, it somehow I would even say rings, as mine just ferrrrari.So far in a year burned five liters already (oil), drove the entire tire in the acacia, not even a hint of breathing. Works until the man himself is not tired, how I’m glad I did not take this Chinese junk. There’s a Chinese weed whacker that I pick up at the starter or carburetor, if it wouldn’t start, I’d have kicked it out and bought a manual mower.
When 13-14 years ago, dealt with firewood was my Oleo-Mac 936, at that time a strange machine (compared to Husky Stilyamii Partners), a real Italian.Well, it’s done its job without a hitch.And there can be no serious demand, with a Chinese saw.And the starter spring, and broke on the Oleo-Mac, and several times.
I was offered, but I refused it, because for me, it is also “outlandish”, then feared to run to the parts, I did not know what they eat it.
great! I have the same shit but a Patriot garden.It’s been running for three years, made a lot of firewood for the heating seasons.and had the exact same breakdown. the tip of the return spring broke.bent over again and all is normal. Apparently this is a universal sore.
Design and principle of operation of the starter chain saw
Most of the well-known chainsaw manufacturers equip their products with starters, which work according to almost the same principle. Its essence is the following: in the groove of the saw body there is a handle, through which a cord is passed. When the handle is raised sharply, the cord is also pulled, which causes the drum, which is in the ratchet mechanism, to engage. This activates the cylinder with studs, 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 point is between the cylinder head and the piston. When the handle is lowered, on the contrary, the ratchet and the pins lose their contact, which causes the shaft to stop.
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Increasing the power of the chainsaw increases the amount of fuel mixture, which must ignite 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. To facilitate the start of the chainsaw, the leading brands use other methods:
- Pre-enrichment of the fuel mixture by means of a separate flap;
- Installation of an automatic decompression valve that reduces the pressure inside the chainsaw cylinder;
- Installation of a primer designed to prime the fuel before starting the engine.
Application of one of these technologies considerably facilitates starting and extends starter life, which is especially noticeable at low temperatures.
Why the manual starter is needed
WARNING! Finds a totally simple way to reduce fuel consumption! Do not believe? A 15 year old mechanic didn’t believe it either, until he tried it. And now he saves 35,000 a year on gasoline!
The main starter is an electric starter. However, do not forget that if the battery malfunctions, it will not be possible to start the equipment with the help of an electric starter. That’s what the manual option was designed for, as a backup.
Portable power plants are a prime example of using a manual starter. It is easier to use a manual starter on them, because it gives the opportunity to conveniently start the engine and operate the generator.
How to Properly Attach the Starter to a Chainsaw
How to start a chain saw: a couple of effective ways
Chainsaws differ in design features, but in most cases the principle of assembly follows two standard schemes. Many devices in the manual contain information about the need to turn on the emergency brake before starting the on/off procedure.
You must first become familiar with the plant and learn basic troubleshooting, then the person will have full control of the device.
A brief look at the plant’s design
The chainsaw is powered by the. It is a simple device whose design has no special bells and whistles. It usually works fine even in harsh conditions.Read the plant unit Functionality is provided by the structural elements:
- The carburetor engine (see the manual for more information). Adjusting the carburetor).
- Centrifugal-type clutch.
- The ignition system, which is virtually contactless in all units.
- A carburetor that adds air to the fuel mixture.
- Fuel system. Its standard unit consists of a hose, filter and gas cylinder, but sometimes it also has extra parts.
- Chain (cf. Chain oil).
- Tensioning mechanism and chain brake (see Fig., How to sharpen the chain).
Step by step instruction
When the brake is activated, the assembly process is much slower, so it is also safer and more convenient to engage the gear without using brake equipment.
If a person is not confident in his knowledge and accuracy, then the brake should be activated in reverse. If the procedure is correct, the device does not start, the mechanism does not make it dangerous for human action.
1 scheme of the standard mechanism
- Before you start the benzoyl, you need to move the flap, which acts as a control lever, to the bottom, compared to the optimal position. First press the button in charge of the throttle. Only if this condition is met, it is possible to move the damper normally to the bottom stop.
The starter knob is jerked again then until the system starts. When the unit begins to work actively, the high speed is immediately noticeable, as the throttle is at a high level. It should be remembered that sometimes chainsaws are supplied without a starter motor, then all operations with this element.
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Also, our article will help you make a choice about which brand of chainsaw to use.
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2 diagrams of the standard mechanism
- The ignition is on. To do this, turn the toggle switch to the desired position or move the switch.
- Usually you need to push the primer to pump more than twice. It is filled with gasoline, and then you need to press the device more than three times.
You need to take the starter crank and tighten in a sharp motion until you hear the ignition process. It is marked by the establishment and almost instantaneous shutdown of the motor. The flap should then be pulled back to its original position, checking its reach up to the stop.
Again, the starter handle is jerked to the location of the device. Before carrying out this action, you need to make sure that this is the way to get a chainsaw. Some devices have a new ignition system.
Chainsaw starter repair. With your own hands.
How to build a chain saw starter motor yourself? How to bend the spring on the chainsaw starter? How to bend the spring
How to repair chain saw starter with your own hands
Starter for Chinese chainsaw 5 piece Link-
When the unit stops all the time, you need to systematically restart it (see., What to do when the chainsaw stops when you press the gas). After a while, the engine will gain momentum and will be able to maintain active operation without interruption.
For more information, see.
if it fails
When all the actions are performed in accordance with the established order, and the chainsaw does not start working, then there are failures in its mechanism.
Usually common and easy to fix problems, such as no spark. clogging of the filter that passes through the air are common causes. To start the chainsaw, you will need to find the cause and take the necessary steps to fix it.
The rules should be followed Only the correct steps should be taken. If a person doesn’t know what to do, a person doesn’t need to commit a rash. Disassembly of the unit is prohibited, especially care should be taken with the carburetor.
Do not loosen the screws on it as if its device caused a breakdown, then it is impossible to repair the chainsaw without professional equipment.
Lists the steps that must be performed in strict order. Only when moving from one activity to the next can you determine the exact cause of the problem and quickly fix it without damaging other parts. Algorithm of actions performed in case of failures in the creation of a chainsaw:
- First of all, it is enough for the device to remain. This is especially true for saws that have been in use recently. It is enough to wait no more than 10 minutes, because during this time the mechanism will cool down, and in the absence of other breaks it will easily start. Sometimes it happens that a candle is poured over the device during the establishment. If this unpleasant property has occurred, it is enough to wait for a very short pause and repeat all the steps for the winding of the motor.
- The housing cover is unscrewed from the device to remove the air filter. The process of planting the device is performed in its absence. Sometimes the reason for no ignition is a dirty filter. If ignition has occurred without it, this is the cause. To eliminate these problems, it is sufficient to wash the filter under running, warm water with soap and then dry it. You can also replace the old element with a new one.
- The spark plug is removed. There is a spark test. If it does not appear, you need to replace the old spark plug with a new one. This usually helps, and a spark appears, but in some cases, and when the mixture is replaced, there is no spark.