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B&Q£13.22Visit shop B&Q - Mk2 Croppable Espag Shootbolt Window Lock Gearbox22mm Backset / 9mm Cam Height
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This guide is for window manufacturers and locksmiths seeking a versatile and secure central locking mechanism. The key benefit is its adaptable sizing and high-security features, ensuring robust protection. A potential caveat is the need for precise measurement during installation due to its croppable components. The Maco Mk2 is a reverse-action inline window lock gearbox featuring bidirectional roller mushroom cams, acting as the central drive for the MACO MK2 espagnolette system. It offers flexible installation with croppable shootbolt extension rods, enhanced security through opposing mushroom cams, and excellent weather resistance.
| Colour | Silver |
|---|---|
| Model Part Number | Mk2 |
| Brand | Truly PVC Limited |
These cams move in opposite directions when locking, creating a stronger, more secure central locking point that offers high resistance against forced entry.
The gearbox itself is standard, but its key feature is the use of croppable shootbolt extension rods, allowing it to be precisely sized for sash dimensions ranging from 382mm to 1400mm.
PAS 24 is a British Standard for enhanced security performance of doors and windows. SBD (Secured by Design) is a police initiative that promotes products proven to resist crime, indicating a high level of security.
The backset is the distance from the gearbox face to the centre of the spindle hole. Different backsets are required depending on the specific window profile design and hardware configuration.
The product is eligible for the MACO Secure Plus scheme, offering a 10-Year Guarantee, which may include insurance excess cover.
Yes, it is designed for multi-frame compatibility and works with uPVC, timber, and aluminium profiles, and its corrosion resistance is beneficial for external applications.
Check for obstructions in the gearbox or cam mechanism. Ensure shootbolt rods are correctly aligned and not binding. Light lubrication with a silicone-based spray may help, but avoid over-lubrication.
Verify that the shootbolt extension rods have been cropped to the correct length. Check the +/- 1mm adjustment on the mushroom cams for proper engagement with the keeps.
Adjust the eccentric mushroom cams to increase compression against the weather seals. Ensure the keep plates are correctly positioned.
While the Silverlook-Evo finish is highly resistant, extreme environments may require additional cleaning. Use a damp cloth and dry thoroughly. Contact support if significant degradation occurs.
Setup: Installation involves fitting the gearbox into the standard 16mm Eurogroove of the window profile. The shootbolt extension rods are designed to be cropped to the precise length required for the specific sash size, ensuring a snug fit. Handle operation will engage the bidirectional mushroom cams for locking and unlocking. It is recommended to follow the manufacturer's detailed fitting instructions for optimal performance.
Compatibility: This gearbox is designed for use with standard 16mm Eurogrooves and is compatible with uPVC, timber, and aluminium window profiles. It is the central drive mechanism for the MACO MK2 (Mach II) espagnolette system. Ensure the backset (22mm) and cam height (9mm) match the existing hardware or window profile requirements.
Care: To maintain performance, regularly clean the gearbox and moving parts with a soft, damp cloth. Avoid using abrasive cleaners or solvents. Periodically check that the handle operates smoothly and that the locking points engage correctly. The Silverlook-Evo finish provides excellent corrosion resistance, but routine cleaning will prolong its lifespan.
