(SLS) Slinger Signaller - Warsaw and all over Poland 

Ośrodek Szkolenia Operatorów OSO invites you to the course (SLS) Slinger Signaller - Hook Signaller. The aim of the training course is to provide participants with knowledge and competence in safe lifting of loads during crane operations, explaining the hazards and risks associated with the profession of hook and signaller.  

Wind turbines

The training is dedicated to wind energy workers involved in lifting operations involving the manufacture, installation and maintenance of wind turbines and their components. 

The OSO training centre fully complies with GWO standards, ensuring a high level of training. The acquired theoretical and practical knowledge will enable you to successfully cope with the work of a hook and line worker or signalman in the area of wind turbines, while maintaining safety standards in accordance with the guidelines. (SLS) Slinger Signaller. 

At our centre, we offer the opportunity to gain competence and knowledge under the guidance of experts in the field. Our courses (SLS) Slinger Signaller cover the entire country - both at our headquarters in Warsaw and in our field branches, as well as in the form of open and closed training courses. Choosing to take part in a course (SLS) Slinger Signaller, you can count on attractive financial terms. 

Purpose of the training

Hook or signaller

Training (SLS) Slinger Signaller - Hook Signaller organised by the OSO Training Centre, is designed to teach technical skills in the field of load suspension and securing techniques, while maintaining the highest safety standards. Participants in the course will become familiar with the types of equipment used and the necessary personal protective equipment. The scope of the training includes the optimum angles for lifting loads and determining the centre of gravity of the load, as well as the effective signalling of lever movement. 


Training (SLS) Slinger Signaller provides participants with the necessary knowledge and skills to perform assigned tasks safely and effectively. The course includes theoretical knowledge, instructor-led presentations and practical exercises. 

At the end of the course, the participant will have acquired knowledge in: 

  • techniques for the safe use of lifting, carrying and depositing equipment; 
  • rules for signalling any movement during simple crane operations, even with limited visibility of the crane operator; 
  • the role and responsibilities of the signaller during lifting operations; 
  • visual inspection of lifting equipment before and after operations; 
  • the professional and safe handling of equipment used in lifting operations; 
  • selecting the right sling for different types of loads, taking into account their weight, centre of gravity, shape and size; 
  • performing routine lifts according to a prepared plan; 
  • proper maintenance and use of equipment; 
  • identification of defects and faults in the equipment in use; 
  • strictly follow the instructions and procedures laid down by the employer for the efficient management of lifting operations; 

The OSO Training Centre programme is designed to provide participants with sound knowledge and skills that will enable them to operate professionally in the field of lifting operations. 

The training programme was based on lift plans (Lift Plan). 

Lift Plan is a lifting plan that includes a risk assessment, definition of methods and other relevant information such as drawings, diagrams, schedules and photos. It is a document that defines the roles of everyone in the lifting operation to ensure its successful completion. This means that each person knows in advance their responsibilities and assigned tasks for the day, allowing all qualifications to be checked and ensuring that all employees have the necessary experience and qualifications to perform the required roles. 
The lifting plan usually includes a method statement for the task, technical information on the crane configuration and other data on the lifting operation, such as ground conditions, site access, etc. 

Lift Plan should include a risk assessment to identify all hazards and implement a plan to address them. It must necessarily include a contingency plan for the worst-case scenario.


We are accredited by DNV and GWO 

Training (SLS) Slinger Signaller - Hook Signaller is carried out in accordance with the current standard GWO Basic Safety Training.  

Upon completion of the course, participants receive a certificate confirming the completion of the training and the acquisition of qualifications and skills in the area of safe lifting, moving and depositing of loads. With the skills acquired, the trainee is prepared to work safely both in the wind energy sector and in other environments where lifting operations are carried out. 


The following requirements must be met in order to work at heights: 

  • Adult 
  • At least secondary education 
  • valid certificate from an occupational physician that there are no health conditions for working at a height of more than three metres 
  • social security or accident insurance paid 
  • having a WINDA ID number 
  • completed medical questionnaire 
  • paid training fee 
  • identity card 
  • workwear (work shoes) 

The certificate is valid: indefinitely 

Maximum number of participants per group: 10-12 persons 


Price of training (SLS) Slinger Signaller - Hook Signaller is determined on an individual basis. The fee depends on the number of participants attending. We offer attractive discounts for larger groups. 

Duration of training: 2 days 

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