How to tension the chain on a saw
Sequence of replacement and adjustment of the saw chain
Changing the chain on a domestic and professional chainsaw is technically simple. The key to the successful performance of adjustment work will be the exact observance of the recommendations included instructions.
Because of the thermal expansion of the metal, the chain can only be fitted on the chainsaw and then adjusted when the bar is cold.
- The classic solution involves turning on the lock against accidental engine starting, unscrewing the threaded fasteners, removing the bar, and cleaning the guide bar from sawdust.
- Then check that the size of the shanks corresponds to the width of the groove, determine which side of the chain you want to put on the chainsaw, attach the bar and adjust the chain in the sequence shown in the manual.
- Before putting a chain on a chainsaw, make sure that the chain direction on the chainsaw is as stated, and that the chain tensioning mechanism has sufficient clearance.
After adjusting a new chain it is recommended to run the saw for 2-3 minutes at medium rpm and then check the chain tension once again. This point can be combined with a visual inspection of the lubrication system.
How to tension the chain on a chainsaw
Having a chainsaw makes it much easier to run a household. Chain saw will be useful to the owner, because with its help is the preparation of firewood, removal of fallen trees and minor repairs. But all chainsaws are highly hazardous and should be checked before starting work. Neglecting checks can lead to both machine failure and serious human injury. You also need to know how to maintain and tension the chain on your chainsaw. This information will help identify wear and tear in time, independently perform replacement of worn units and keep the unit in proper technical condition.
It might seem that you need special skills and experience to service the saw. In practice it turns out to be simple, the main thing is to follow the recommendations carefully. Most of the points are logical: you can not disassemble with the engine running, and you can not install the chain on a cold chain saw. Among other things, the owner must periodically change the air filters, clean the elements from chips and dirt, inspect the guide bar for deformation.
Step-by-step guide for tightening chain
You can put the chain on the saw and adjust the tension yourself at home. If you have the right tools handy, you can have the chain headset tightened in a couple of minutes. Where to start? Check the chain links, because chain slack can be caused not only by insufficient tension, but also by worn elements (sprockets and teeth). If the tension is still the cause, you can adjust the tension. A new chain headset must first be slipped on the work surface.
Installing the chain on the bar of a chainsaw (according to the example of the Partner 180) is carried out according to this algorithm:
How To Adjust Your STIHL Saw Chain
- Position your chainsaw on a clean, level surface. The saw headset should be on top.
- Remove the protective cover by first unscrewing the threaded fasteners.
- Remove the guide bar from the tool, clean it with a can of compressed air or vacuum cleaner.
- Determine the correct position of the chain. The tines are on top and point in the opposite direction of the housing.
- Put the chain on the working surface. Screw in the bar securely and make sure there is enough clearance.
Now check and adjust the tensioning of the chain headset. There are several ways to accomplish this task. Tightening the chain using the quick method requires the use of a tightening bolt. Screw it clockwise, then check the condition of the wing nut and lower the handle.
The front method is more complicated. To tension the chain, perform the steps in this sequence:
- Unscrew the nuts that are responsible for securing the bar to the tool. Loosen them and pull on the edge of the work surface.
- Use a thumb screw to tighten the chain to the proper tension and secure it in position with the nuts.
- Check. tension. degree. of. chain. by. lightly. pulling. the. chain. with. your. fingers.
How-To Properly Adjust The Chain Tension On Your Chainsaw. Video
The chainsaw should not have too much tension, because this is just as dangerous as having too little tension. When you have finished making adjustments, run the tool and let it idle for a minute or two. And in the meantime, you can analyze if it is behaving properly. Whistling noises, unusual hissing noises, and whistling noises are all signs that the chain saw is not working properly.
Principle of chain tensioning
The performance of an electric chainsaw depends on correct chain tensioning. To avoid injury during tightening, use protective equipment. gloves for the hands. Algorithm for tensioning the electric chainsaw chain:
- There are special nuts on the body of the electric tool. Loosen them with the standard wrench provided.
- Insert screwdriver in slot and twist, chain should tighten.
- Turn carefully and slowly. Tension level should be checked manually until it is sufficient.
The low-profile chains that come with amateur power saws designed for woodworking are made of high-quality flint steel. There are also carbide consumables used for sawing hard wood, as well as for working with concrete and aerated concrete bases. Such accessories are characterized by excellent strength properties, slower blunting and stretching, but their cost is 3-4 times higher compared to standard ones.
Chainsaw models where the chain is tensioned by an instrumental method are considered more reliable. The mechanism is simple, resistant to breakage, durable, rarely fails. A flat-tipped screwdriver and wrench 13 are needed to adjust tension. The chain is tensioned like this:
All chain headsets, without exception, need to be tensioned. Even the highest quality consumables get stretched in the course of intensive work, so their functionality suffers. But poor tension isn’t the only problem with chains. Consumables also get blunt. And a dull chain not only affects the performance of the tool, it also affects safe operation. That’s why it’s important to check the condition of the cutting parts on your chain saw.
Causes of chain failure
Like any part, the saw chain needs attention and proper maintenance. First of all, these words refer to the break-in period of the chainsaw and the chain-set. However, it is important to check that they stay in working order all the time.
Correct Way To Adjust The Chain Tension On Your Chainsaw
The main causes of chain malfunctions:
- Poor metal quality on low-end models;
- Operator work style;
- Incorrect tensioning;
- Failure or excessive wear of the drive sprocket;
- Malfunctions in the automatic lubrication system;
- Bent, clogged or other breakdowns of the saw bar;
- The use of low-quality materials;
- Untimely sharpening of the working edges;
- The level of operating loads on the chainsaw;
All this can lead to rather unfortunate circumstances, and significant expenses on the purchase of new parts and the repair of the chainsaw:
- Deterioration of operational capabilities and productivity;
- Operator safety when doing sawing work;
- Premature wear of individual nodes and parts and the entire chainsaw;
Step by step instruction: how to tension the chain on a chainsaw correctly?
If you live in a private home, a saw should be in the household for home gardening chores, making firewood for the winter. With furnace heating, the volume of billets is large, so there is a need to simplify the task to spend less effort and time. Buying a chainsaw solves this issue, as it allows you to reduce woodworking time, increase speed, and save on the use of third-party services. As with any equipment, it can fail, which requires preventive maintenance and some equipment repair skills. If the chain on a chainsaw becomes loose, you can tension it yourself or with the help of a specialist.
How to check the correct tensioning?
To check the quality of the tension, it should be gently pulled back in the middle of the tire.
Allow no more than 2/3 of the length of the cutting link tails to come out.
You can also determine the need for tightening by the following signs:
- Creaking and grinding in the area of the main drive sprocket;
- loosening the tightening of the safety mechanism, the fastening of the bar;
- jamming when sawing, increased vibration and noise.
A chainsaw has reduced productivity and increased operating time. Even when cutting soft types of wood the chain tends to stick in the groove, speed is low and cutting is smooth.
Main chainsaw chain faults
Chainsaw users often encounter problems with chain tensioning. The bar can either come loose or stretch and come off. These faults are usually caused by machine breakdowns. Before you tighten the chainrings, check and correct any possible problems that could cause misalignment.
The chain on a chainsaw becomes slack as a result of excessive use or insufficient lubrication of the bar. It causes overheating, the metal expands, the chain increases in size and the saw unit comes off the guide bar. Oil flow can be restricted if the pump breaks, the lines are blocked, or the oil hose is cut.
If you have replaced the chain on your chainsaw with a new one, be prepared for the fact that it will stretch a little during the running-in period. It is only necessary to check the tension in time, so that the element does not fly off the bar.
A chain that is made from low-quality steel also stretches quickly.
If the chainwheel or drive sprocket becomes worn, the chainwheel’s grip on the chain links decreases and the saw unit comes off. In this case it is necessary to unscrew the chain drive and change the sprocket. Also the saw blade of the machine can come off because it is stretched or the bar is deformed.
If the chain on your chain saw is loose, the tensioning mechanism can be at fault.