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Instructions for labor protection when crosscutting whips on a semi-automatic installation

Occupational Safety and Health / Standard instructions for labor protection

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Safe Operation

1. General requirements for labor protection

General labor protection requirements are set out in the instructions "General requirements for labor protection for workers engaged in logging and forestry work".

2. Labor protection requirements before starting work

2.1. Operators of the crosscutting plant and the mechanism for piece-by-piece supply of whips must inspect and check the technical condition of the main components at idle. If defects are found, take measures to eliminate them; if it is impossible to cope on your own, report to the master.

2.2. The following are subject to check for serviceability and reliability of fastening:

• guards for rotating units and parts;
• electrical cables and hydraulic system connections;
• braking system of the installation, providing a complete stop of the cutting body from the moment it is turned off for no more than 10 s;
• lighting;
• light and sound alarm;
• a sawing device, especially a saw blade;
• control and blocking system.

2.3. It is forbidden to work on faulty equipment.

3. Labor protection requirements during work

3.1. The employee must perform only the work that is entrusted to him by his immediate supervisor.

3.2. Operators must ensure that there are no people in the hazardous areas and give an audible signal to start work before starting the crosscutting machine and the whip feeder.

The following areas are considered dangerous:

• separation and piece feed of whips;
• moving logs and assortments along timber conveyors;
• rotation of the saw blade;
• waste and garbage conveyor or skip loader;
• assortment drops.

3.3. It is allowed to work only with a straightened saw blade that does not have cracks, with well-sharpened and correctly set teeth.

3.4. To remove and install the saw blade and the fence, the simplest lifting mechanisms should be used: a crane-beam with a manual drive, a hoist, etc.

3.5. The bucking whip must be pushed in when the saw blade is in its extreme non-working position.

3.6. It is necessary to push the saw blade onto the whip after it has gained full speed.

3.7. During the operation of the crosscutting machine, the operator must be at the control panel and observe the operation of the machine's mechanisms.

3.8. If the trimming is stuck between the feeder and the receiving device, it is necessary to turn off the installation and, after the saw has completely stopped, remove the trimming with a hook.

3.9. Operators of the crosscutting plant and the mechanism for piece-by-piece supply of whips during operation are prohibited from:

• be distracted from the performance of direct duties;
• leave the cabin with the installation mechanisms turned on;
• transfer control to persons who do not have the right to do so;
• allow unauthorized persons to stay in the operator's room;
• continue to work when people are detected in hazardous areas;
• straighten whips or assortments on moving timber conveyors.

3.10. When the operator exits the cab, the crosscutting machine or the whip feeder must be turned off and the door locked. The cab door key must be kept by the operator.

3.11. During lubrication, adjustment, cleaning from sawdust, bark, as well as during minor repairs or inspection of individual components, work must be stopped, and the main switch turned off. It is possible to start lubrication, adjustment, cleaning and repair only after a complete stop of the rotating parts with a warning poster posted on the knife switch "Do not turn it on! People are working!". Manipulator, pressers, rollers, curtains and other mechanisms must be lowered; if this is not possible, support devices should be installed under them.

3.12. In the event of a power outage, the operator must turn off the control buttons on the remote control.

3.13. The operation must be stopped if any malfunctions of the following devices are detected:

• waste collection unit;
• sound and light alarm;
• brakes;
• saw blade guards;
• lighting systems;
• saw blade;
• blocking systems;
• hydraulic systems;
• electrical appliances, wires and grounding.

If a malfunction is detected, the conveyor or skiploader must be stopped.

3.14. During the operation of skip loaders of the PS-3 (LV-175) type and waste disposal conveyors, the following requirements must be met:

remove and correct waste on the conveyor and skip loader only when they are completely stopped and when the saw blade is stopped;

to correct waste in the bunker of the skip loader should be from the place of the fenced area with the help of a shovel, hook or other devices;

when unloading the bunkers of the skiploader or conveyor, people must be at least 5 m away.

4. Labor protection requirements in emergency situations

4.1. If the motor overheats, stop it and let it cool down. Do not cool the engine with water or snow.

4.2. If a fire is detected in the wiring, it is necessary to immediately stop the engine and turn off the breaker.

4.3. If an oil leak is detected from the hydraulic system pipelines, work must be stopped and the malfunction repaired.

4.4. On the signal "stop" the operator must immediately stop the installation, regardless of who gave this signal.

4.5. In the event of a fire, a fire extinguisher located in the operator's room must be used to extinguish the flame.

4.6. If it is necessary to eliminate a malfunction that has arisen during operation and maintenance, it is necessary to turn off the engine of the unit.

4.7. The victim or eyewitness must notify the foreman or the appropriate work manager of each accident.

4.8. Each worker must be able to provide first aid. Assistance must be provided immediately at the scene of the incident. The first step is to eliminate the source of injury (turn off the engine, stop the mechanism, remove the victim from under the whip, etc.). The provision of assistance should begin with the most significant that threatens the health or life of a person: in case of severe bleeding, apply a tourniquet, and then bandage the wound; if a closed fracture is suspected, apply a splint; with open fractures, you should first bandage the wound, and then apply a splint; for burns, apply a dry bandage; in case of frostbite, gently rub the affected area using soft or fluffy tissues.

If spinal injuries are suspected, the victim can only be transported in the supine position on a rigid base.

After providing first aid, the victim should be sent to the nearest medical facility.

5. Labor protection requirements at the end of work

5.1. Upon completion of work, you should:

• stop all nodes of the cross-cutting plant and the mechanism for piece-by-piece supply of whips and turn off the main switch;
• clean the mechanisms of sawdust, bark and other debris;
• notify the foreman or the relevant work manager of the shortcomings in the field of labor protection.

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