Operator & Technical Training – Turner Gear

To ensure safe operation and efficient troubleshooting of the Turner Gear system, AS SCAN provides specialized training for wind turbine technicians working with the EnVentus Turner Gear or the MK4A Turner Gear.

This Turner Gear Training program is designed for personnel responsible for operation, fault diagnosis, remote support, and system verification in nacelle environments.

What the Turner Gear Training covers

The training provides a structured technical overview of the Turner Gear system, covering mechanical installation principles, hydraulic functionality, electrical interfaces, and advanced troubleshooting procedures.

Wind turbine technician standing next to diagnostic screens displaying system data during Turner Gear training and troubleshooting session at AS SCAN.

The program reflects real-world service scenarios and prepares technicians for both on-site and remote support situations.

Mechanical understanding of the Turner Gear

Introduction to installation principles inside the nacelle, including correct mounting of the Turner Gear on the generator in accordance with the AS SCAN user manual. The training also covers mechanical assembly and first-run procedures.

Hydraulic system and components

Participants gain a practical understanding of the hydraulic control unit, including key components such as PVG, diverter valves, pressure relief valves, counterbalance valves, hydraulic motors, filters, accumulators, and associated sensors.

The focus is on understanding system behaviour and diagnosing hydraulic-related faults.

Electrical systems and signal troubleshooting

Training includes electrical fault finding within the control unit and its connection to the nacelle.

Participants work with:

Controller pins and HDC connectors
DCN cases and I/O signals
Voltage verification
CAN communication between controllers, HMI, PVE modules, EMD sensors, and nacelle VFDs

Technician working inside an open Turner Gear control cabinet, adjusting wiring and hydraulic components during Turner Gear training at the AS SCAN workshop.

Technicians are trained to interpret signals and guide site personnel through structured troubleshooting using a multimeter.

Danfoss ServiceTool – practical use

Hands-on training in the use of Danfoss ServiceTool for system overview, parameter verification, and fault diagnosis.

Participants learn how to:

Monitor hydraulic components
Analyse system behaviour
Write parameters to controllers or HMI
Run structured troubleshooting scenarios

MK0 / MK1 nacelle differences

Understanding of the differences between MK0 and MK1 nacelle configurations relevant to Enventus Turner Gear systems, including rotor lock sensors, lubrication and cooling VFDs, and electrical interface variations.

Rotor lock system

Training includes operation, testing, and troubleshooting of nacelle rotor locks, including installation of rotor lock kits and sensor verification.

Scenario-based training and final verification

The program includes structured fault scenarios and real-case simulations to ensure participants can confidently diagnose and resolve issues both locally and via remote support.

Participant receiving a training certificate after completing Turner Gear training focused on operation and troubleshooting of wind turbine systems.

A final test verifies the participant’s ability to operate and troubleshoot the Turner Gear system in practical conditions.

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Turner Gear Training & Troubleshooting