GWO Basic Technical Training (BTT) Hydraulics

The aim of this BTT Hydraulic Module is to give the Delegates the knowledge and skills to carry out basic Hydraulic tasks (supervised by an experienced technician) using safe working procedures and the correct PPE.


The Basic Maintenance Training modules are targeted at candidates who have no previous experience of hydraulic, mechanical or electrical systems but may also be used to up skill candidates who have some knowledge of these areas in other spheres not specifically wind turbines.

The GWO BTT Hydraulic module is one out of three standalone qualifications which together form the full GWO Basic Technical Training. BTT modules can be taken independently and in any order you wish. It is however highly recommended that the mechanical module is taken as the first module. The content of the BTT Hydraulic module is:

  • Introduction
  • Hydraulic introduction
  • Hydraulic Safety
  • Pumps
  • Actuators
  • Valves
  • Accumulators
  • Sensors
  • Pipes, hoses and connections
  • Oil and filters
  • Hydraulic Diagrams
  • Pressure measuring tools
  • Theoretical test

The BTT Hydraulic Module shall ensure Delegates are able to:

  • Explain the basics of hydraulics
  • Explain risks and hazards associated with hydraulic work
  • Explain the function of different types of pumps and demonstrate how to check start/stop pressure of a pump
  • Explain the function of different types of actuators
  • Explain the function of different types of valves
  • Explain the function of accumulators and demonstrate how to check and precharge them
  • Explain the function of different types of sensors
  • Identify the components which transfer the oil
  • Describe the handling of oil procedures
  • Identify and find different components on a hydraulic diagram
  • Demonstrate how to measure the hydraulic pressure accurately