Frequently Asked Questions

Shaft Lok is a marine shaft locking system that prevents propeller free-wheeling when sailing. It uses a spring-loaded locking mechanism that engages the propeller shaft, preventing rotation and reducing drag, noise, and wear.

Shaft Lok systems are available in multiple sizes (Mod I, II, III) to accommodate various shaft diameters and boat sizes. Check our installation guide for specific measurements and compatibility requirements.

The Marine Control Cable allows you to operate Shaft Lok from the cockpit. Alternatively, you can use the Simple Spring Locking System which requires engine room access. The cable system is more convenient for frequent use.

Installation requires basic mechanical skills and tools. The system mounts between the transmission and propeller. Professional installation is recommended for optimal performance. See our installation guide for detailed instructions.

Shaft Lok features maintenance-free ball bearings and marine-grade materials. Occasional inspection and cleaning are recommended, but no regular maintenance is required under normal operating conditions.

Yes, when you engage the transmission, the rotational force automatically disengages the locking mechanism, allowing normal propeller operation. No manual unlocking is required.

Shaft Lok is compatible with Borg Warner, Paragon, Hurth, and Volvo Penta transmissions, among others. Contact us for specific compatibility questions about your transmission model.

Users typically report improved sailing speed, reduced noise, and smoother sailing experience. The locked propeller reduces drag and prevents the annoying 'free-wheeling' sound during sailing.