Yaw drives, bearings and brakes, hydraulic and electric pitch, slip rings and service-exchange units, matched to independent repair specialists across Australia.
Request a QuoteMatched to vetted providers in your state. No cost, no obligation.
Pitch and yaw keep a turbine pointed at the wind and loaded safely. When either falters the machine derates or stops, so a fast, correct repair protects both production and the drivetrain behind it.
We match owners and asset managers to independent repairers who cover yaw drives, bearings and brakes, hydraulic and electric pitch, slip rings and service-exchange units. Tell us your platform and fault and we route the enquiry to the right provider.
Need advice?Tell us your platform, the fault code and whether your pitch is hydraulic or electric. We match you to independent repair specialists in your state.
Your enquiry is sent to vetted service partners who may contact you directly. We never charge owners or asset managers.
Global Wind Organisation trained crews across the network.
Partners aligned with CEC codes of conduct.
Out-of-warranty support for major OEM platforms.
HV tickets, rope access (IRATA) and heavy-lift credentials.
Wind turbine pitch control and yaw are the two systems that decide, second by second, how much energy a turbine takes and how safely it carries the load.
Pitch sets the blade angle to capture light wind, shed power in strong wind and feather to a safe stop in a fault. Yaw keeps the rotor square to the wind and untwists the cables below. When either misbehaves the control system is quick to trip and hold the machine offline, so these faults show up often in the alarm log and cost real production. Many sit alongside the wider electrical & control systems that command them, and a correct diagnosis separates a true mechanical fault from a sensor or converter issue.
The yaw system is driven by several motors turning pinions against a large slew bearing, held by a brake between moves. We match providers for yaw motor and drive replacement, gear and pinion wear, brake and caliper service and slew-bearing inspection. Most of this is uptower nacelle work; a badly worn slew bearing is the exception that may need a larger lift, which the provider confirms on scope.
Hydraulic pitch drives each blade with a cylinder fed from a power pack, with accumulators holding the stored energy to feather on loss of power, so cylinder seals, hoses, valve blocks and accumulator pre-charge are the usual suspects. Electric pitch uses a motor and gearbox per blade with backup batteries or capacitor banks in the hub to drive the blades to safety; here the work centres on pitch motors, drives, the pitch bearing and ageing backup storage. Slip rings carry power and signal into the rotating hub and are a frequent source of intermittent pitch faults, so inspection and replacement are part of the same visit.
Downtime falls when a tested service-exchange yaw drive, pitch motor, slip ring or control card is fitted while the removed part is overhauled off site. Good diagnosis comes first: reading the fault history, checking feather-to-safety and over-speed behaviour and confirming the root cause before parts are ordered. From there the provider can plan the repair around a low-wind window and draw on parts & spares, the wider gearbox, generator & drivetrain workshop and the parent repair service. For background on how these systems sit in the machine, see our wind turbine nacelle guide.
