Sooner or later, any motorcyclist is faced with the need to replace sprockets or chains. A specialized tool for unpressing links will help with removal. Before you rivet the chain on the motorcycle, you need to bring it into the seats. To do this, connect the old riveted chain to the new one using a wire or a special lock . After dragging the chain along the working ring, release the lock. This procedure is performed in neutral gear, after you have fixed the motorcycle in a horizontal position. It is advisable to purchase a special maintenance kit. If you temporarily do not have the opportunity to make such a purchase, it doesn’t matter - all work can be done using improvised tools that can often be found in any garage.
Method No. 1 - a special device
Pressing the chain is done using a small clamp, at one end of which a small metal ball is fixed. When the thread is tightened, the lock flares. Before this, the locking pin must slide smoothly and neatly into the chain links. It is the threaded mechanism that allows you to regulate the force and efficiently press and press the lock.
Sometimes, such sets may have pins and balls of several diameters to serve several models of chains. It is important to evaluate whether the pin and ball are selected correctly for the job, otherwise the pin will rest against the side wall of the link and, with force, may bend it.
Method number 2 - hammer
This method is suitable for those who need to repair a motorcycle without special tools. A sledgehammer or anvil is placed on the bottom, under the chain. Take a hammer about 400 grams, and with careful movements, drive the locking pin between the links. Next, the task is to rivet the pin evenly until it becomes a mushroom. This procedure will take no more than 10-20 minutes. This method will require skill and attention to both ends of the fixing pin.
How to Rivet a Chainsaw Chain at Home
How to shorten a chainsaw chain if it is stretched
For proper operation of the chainsaw
It is important not only the condition of its main components, engine, carburetor, oil pump, but also the condition of the saw chain. Every saw owner should know how to maintain and repair a chain. In this article we will talk about what to do if the chain on a chainsaw is stretched and how to shorten it.
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Content
Can I cut
The chain was broken on the saw, this is a common thing and you should not be upset. Manufacturers made sure that the chain could be restored and shortened. Spare links are available for sale for various types and sizes of chains, chain rivets, riveting and riveting machines.
Using machines to seal a chainsaw at home, you can even those who have never done anything like this.
Important: chain repair, even the best, does not guarantee that it will last forever. The ligaments wear evenly, so at any time the chain can come off in another place.
There are chains on sale in rolls of 50-100 meters, which you can buy and rivet yourself.
Coils are beneficial for professionals who work with chainsaws every day, such as loggers or sawmill workers.
When to cut back
Chainsaw chain
may be shortened when it is stretched so far that the adjustment screw is not sufficient to maintain proper tension. You don't need to remove more than two working links. It is also possible to make the chain smaller if for some reason a longer length bar is changed to a shorter one. If necessary, an increase is allowed, additional links can be purchased in a specialized store or used from a donor suitable for all characteristics, pitch, shape of the cutting teeth.
Why stretch
Saw owners often ask the question: “Why is the chain tensioned on the chainsaw?” We will try to answer it. A saw head can be stretched for several reasons.
- The oil pump is faulty or incorrectly installed. Limited or no oil supply results in excessive heat during operation. A hot chain stretches several times faster.
- Work in adverse conditions. Dust, dirt, and soil fall on the headset during operation. The dirt particles act as abrasives and gradually wear down the joints, causing them to stretch.
- Using poor quality chain lube. Often used for chain lubrication, it is not recommended by the oil manufacturer and used car engine oil. The “working off” contains metal particles, which can also give the effect of an abrasive material.
- The chain is new. Chainsaw manufacturers specially make adjustment screws for the saw because the stretching process is inevitable.
- Natural stretching as a result of prolonged work.
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Stretching is inevitable, the question is how quickly it will happen. You can extend the service life by using high-quality lubricants for lubrication, timely diagnosis of the oil pump and breaks in operation.
Such measures can significantly reduce the likelihood of sprains, but do not completely eliminate them.
The chain has stretched, what should I do?
If the chain
stretched, but the wear on the links still allows it to be used, you can rivet it and keep working. Determining the number of links to remove is not difficult. To do this, a bar is installed on the chainsaw, the tension screw is twisted to the extreme position, and measurements are taken. Having determined the required length, you can proceed to riveting.
The chaining of chain saws is done using auxiliary tools and special machines. Let's take a closer look at what tools are needed to reduce or increase the length of the chain.
Tools required for work
Having started the rivets, the first step is to remove the link from the chain, this will require rivets. For riveting you will need an anvil, a hammer, a thin beard, a vice, a crusher with a grinding wheel or emery. These tools do not allow you to do quality work, but they will be found by everyone. A more cultured and gentle way, remove the rivets with a special blow.
There are several examples of strikes, we will tell you about the most popular ones.
Rivet for rivets
Punch. This is a machine that is used to remove rivets.
It is mechanical and works on the principle of printing. The kit includes a special anvil in which grooves are selected to install the headset at various pitches. There are also replaceable tips that are used to press out the rivets.
HOW TO RIVET A SAW CHAIN
riveted and riveted the chain
using yews.
Riveted and riveted a chainsaw chain
Video on how to shorten a chainsaw chain
.
Important: The size of the rivets in different types of chains varies, so when purchasing a breaking machine, make sure the kit contains several tips that are used for different types of sets.
We suggest watching a video that shows how to seal a saw chain with a mechanical blow.
Once the chain is sealed, you need to remove the old link, install a new one and seal it. A riveting machine is used for this. It's electric, so it costs a lot more than a breaking machine.
Riveting/rolling machines
The machine is equipped with a high torque gear motor.
It is used for riveting and rolling fittings in increments from 1/4" to 0.404". The depth of saw chains that can be glued with this machine is from 1.1mm to 2mm (0.043" - 0.080"). Special rotating inserts and anvils for different types are supplied with the machine. Inserts and anvils are marked. The "A" designation indicates that the inserts are designed to fit 3/8" and 0.404" pitch fittings. "B". for 1/4" and 0.325".
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The machine works as follows. A saw chain with a new link and rivets is installed in the guide inserts. The repair link with the rivets fixed in it is pressed by the working roller to the anvil, then the engine starts and the roller begins to rotate, gradually crushing the rivet. At this point, the machine operator slightly increases the pressure on the roller by turning the adjusting screw. For clarity, we suggest you watch a video of the rivet machine in action.
It is not profitable to use such a machine for riveting a house because it is expensive. If you need to re-rivet regularly, you can do without it. Consider how to cut your chainsaw chains yourself without using expensive machines. You need to start with the rivet and remove the link.
The advantages of the machine are that the rivets riveted with its help are practically no different in quality from rivets in the factory.
How to remove a link without using a machine
There are several ways to remove rivets.
- Printing using sandpaper. Work carefully, trying not to damage the adjacent, entire link.
- Stoch with the help of the Bulgarians.
- Cut off the chisel. To do this, the chain must be clamped in a vice with guides so that the rivets on the connecting link can be cut.
Once the rivet heads are grouped or cut down, the following steps must be taken to disconnect the connection. Place the beard between the plates of the connecting rod and hit it with a hammer with a sharp motion. The plates must be released from the rivet body that passes through them.
Important: the working tooth, then it is necessary to seal the connecting links to the left and right of it.
Now let's see how to peel back.
How to rivet
A connection is required to connect. Replacement links can be found at any store that sells chainsaws and chainsaw accessories. When purchasing replacement links, you need to consider the type of chain, pitch, and profile. Links from different types of typefaces are not interchangeable. It is not recommended to use the donor link with the old one. The rivets on it are already worn out and for normal connection it is necessary to undermine the top plate.
The rivet pin is mounted on a chain and placed on the anvil with the open side facing up. The top plate is then placed over the rivets and lightly hammered down to allow it to sit as tightly as possible. After this you can continue smoothing the rivets. For this, an anvil, a rod and a hammer are used.
The headset is mounted on an anvil, the beard is mounted on a rivet and a sharp blow is made with a hammer. The second rivet was riveted in a similar manner. As a result, a thickening should be obtained in the protruding part of the rivet, which securely holds the upper engagement plate, preventing it from detaching.
The last step is to check that the chain link moves and is not caught when riveting.
Important: if the work is done incorrectly, and there is no reference to repair, it is impossible to install such a chain on the chainsaw.
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Consider what could happen if the rivet is incorrect.
Consequences of poor repairs
The consequences of poor repair can be very sad; a chain that breaks can injure the operator. Of course, modern saws are equipped with all types of protection. For example, they install traps that are designed to protect the operator in an emergency, and the right hand, which is on the chain line, is hidden behind the body.
But protection does not give a 100% guarantee, so before using the repair chain with maximum load, you need to test it on light work, cut a couple of branches or boards.
In addition, the consequences of poor repairs can affect the performance of the chainsaw. See what mistakes can be made during repairs and how they will affect the operation of the saw.
Errors in circuit repair
- Doesn't match the stage. The reason is that the working link is not suitable for the basic parameters: pitch, link thickness. If you use this headset for work, the result will be replacing the drive sprocket and saw blade as the sprocket on the bar will break.
- Another option for pitch mismatch is to install the working tooth in the opposite direction. It's very rare, but it does happen, especially to those who fix it for the first time. The consequences are similar to the first.
- The chain is longer than the bar. In this case, everything is clear, the adjusting screw is not enough for tension, the chain will dangle and wear will increase.
- In short. Such a headset cannot be installed; it will need to be riveted and extended.
- The connecting link is slightly longer. Similar to the first point, the pitch will change, which will lead to the destruction of the driving and driven sprockets.
In conclusion, I want to pay special attention to the quality of articles on this topic. The pages of websites on the Internet contain information on how to repair a saw chain by welding. Such instructions are written by incompetent authors who do not understand what they are writing about.
It can be repaired by welding, but these are not saw chains, but chains of gears designed to transfer forces from one sprocket to another.
These can be found in the mechanisms of agricultural machines, conveyors and other units.
Conclusion
We considered all issues related to self-adhesive riveting and paid attention to tools and machines. We advise you to buy expensive repair equipment only if you work with saws regularly. Please note that an incorrectly secured chain can cause harm not only to the tool, but also to the operator.
If after reading you still have questions about the topic of the article, you can write them in the comments and we will answer them.
