Instructions for labor protection when working with a chainsaw

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OCCUPATIONAL SAFETY AND HEALTH
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Instructions for labor protection when working with a chainsaw

Occupational Safety and Health

Occupational Safety and Health / Standard instructions for labor protection

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Safe Operation

1. General requirements for labor protection

1.1. To work with a chainsaw, workers are allowed, at least 18 years old, who have passed a medical commission, as well as training and passing an exam in the commission of an enterprise and having a certificate. Admission to independent work is issued in writing in the briefing log at the workplace.

Before admission to work, the worker must undergo an introductory briefing both on safety precautions and at the workplace.

1.2. The main hazards when working with a chainsaw are:

flying branches;
cutting chain;
increased vibration;
traffic fumes.

1.3. The worker must know:

device, principle of operation of a chainsaw;
the main types and principles of malfunctions of this equipment and how to eliminate them;
safe practices when working with a chainsaw;
what is the recoil effect and what consequences it can lead to;
refueling procedure;
chain lubrication procedure;
the procedure for checking the wear of the saw mechanism;
the procedure for sharpening and adjusting the height of the cutting limiter;
chain tension adjustment.

1.4. Personnel must wear the following PPE when operating a chainsaw:

safety trousers with saw protection;
protective helmet with ear protectors;
goggles;
special protective gloves;
safety boots with chain protection with metal insert and non-slip soles;
have a portable first aid kit when working with a chainsaw.

1.5. Never use a saw with defective safety features.

1.6. The worker must observe and be able to:

rules of internal labor regulations;
fire safety rules;
the procedure for checking the chainsaw before starting work and its daily preventive maintenance;
assist injured victims.

1.7. The worker must be aware that in case of violation of the requirements of the instructions, he is liable in accordance with applicable law.

2. Labor protection requirements before starting work

2.1. Put on the appropriate overalls and prepare other personal protective equipment (PPE).

2.2. Protect the installation area, hang warning posters, provide the workplace with fire extinguishing equipment.

2.3. Verify:

serviceability of a chainsaw;
serviceability of the chain and chain brake handle;
serviceability of the blocking lever of the throttle;
serviceability of the chain catcher when it breaks;
protective element of the right hand;
vibration suppression systems;
serviceability of the switch, muffler.

2.4. Fill the saw with petrol. Do not use open flame when refueling. After filling is complete, tighten the cap securely.

2.5. Before starting the engine of the chainsaw, be sure to move it from the place of refueling, let the engine run at idle.

2.6. Make sure that there are no strangers near the workplace.

3. Labor protection requirements during work

3.1. After the inspection, making sure that the chainsaw is in good condition, that there are no people and animals, it is allowed to start felling trees.

3.2. Always hold the saw firmly with your right hand on the rear handle and with your left hand on the front.

3.3. Grip the saw handles tightly with your whole hand. This girth must be used regardless of whether you are "right-handed" or you are "left-handed". This grip reduces kickback and keeps the saw under constant control.

3.4. Most often, kickback occurs when pruning branches. You should always be in a stable position and make sure that there are no reasons that would make you stagger or lose your balance.

3.5. Carelessness can result in kickback if the kickback area of the blade touches a branch, nearby tree, or other object.

3.6. Do not lift the saw when working above shoulder level and do not cut with the tip of the saw blade, do not work with one hand.

3.7. Be especially careful when cutting with the top edge of the saw blade, i.e. when sawing from the underside of the object. This method is called pull sawing. In such cases, a shock may occur. At this point, the chain tends to push the saw in the direction of the worker. Therefore, at this point, a sufficient counteracting force should be applied.

3.8. Do not operate a chainsaw if you are tired or have drunk alcohol.

3.9. Avoid working in bad weather (thick fog, heavy rain, thick fog, strong wind). Working in cold weather is very tiring and poses additional risks.

3.10. Care must be taken when pruning small branches and try to avoid sawing shrubs. Small branches can be caught in the chain and thrown in your direction, causing serious injury.

3.11. Be very careful when sawing branches and logs that are under load or tension. A log or branch can suddenly return to its natural position, which can lead to loss of control and serious consequences.

3.12. Always use full throttle when sawing.

3.13. After each sawing, the idle speed must be reduced.

3.14. When sawing, do the following:

so that the saw blade is not caught in the cut;
make sure that the log does not split;
so that the saw chain does not catch on the ground or other object during or after sawing;
check if there is a risk of kickback;
whether the conditions affect the safety of your work.

3.15. For felling a tree, you need to choose the direction that is most convenient for subsequent trimming and cutting. You can knock down a tree to the ground, where it can be relatively safely moved.

3.16. Do not let the tree fall on other trees.

3.17. Make sure that during the fall of a tree, you are not hit by a split tree or dry branches.

3.18. During critical felling work, it is necessary to raise the hearing protector as soon as sawing is finished in order to hear sounds and warning commands.

3.19. For felling a tree, three cuts are made. First of all, a notch, consisting of an upper and lower cut. After that, the main cut is made. By making these cuts correctly, you can control the direction of the fall quite accurately.

3.20. The possibility of influencing the direction of the fall will be completely lost if the fault line is too narrow or the guide and main cuts are poorly placed relative to each other.

3.21. Before moving the saw, switch off the engine and block the chain with the chain brake. Carry the saw with the chain saw blade facing backwards and with the protective cover on.

3.22. Do not lower the saw down with the engine running until you are out of sight and the chain brake is released.

4. Labor protection requirements in emergency situations

4.1. If the chain is caught in the cut:

stop the engine;
do not attempt to pull the saw out of the clamp. This can damage the chain if the saw suddenly comes loose. Use a lever to open the kerf and remove the blade.

4.2. If you are injured while working with a chainsaw, contact the first-aid post or call an ambulance, notify the master.

5. Labor protection requirements at the end of work

5.1. At the end of the chainsaw, you must:

clean the chainsaw from the outside;
clean the chain brake;
clean the air filter;
check the operation of the starter and its cord for wear or damage;
check the operation of the switch;
clean the spark plug;
clean the cooling fins of the cylinder;
Clean or replace muffler mesh.
turn the saw blade over.
check the tightness of all nuts and bolts.

5.2. Report all noticed malfunctions in the operation of the burner and the measures taken to report to the work manager.

5.3. Remove overalls, wash hands with soap.

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