ASEC Copy MK3 Maco GTS 35mm Gearbox Only

The ASEC Copy MK3 Maco GTS 35mm Gearbox Only has a 35mm backset with 92mm centres and is a single spindle centre case.

This ASEC replacement gearbox is designed as a direct copy of the Maco MK3 GTS centre case with a 35mm backset. It is an ideal repair solution where the original Maco multipoint lock strip remains in working order and only the gearbox has failed.


Handing
The latch can be reversed by pushing up the latch hold snib located on the side of the lockcase, pulling out and reversing the latch, and returning it to the case. You should hear a click as it engages.

Operation
Locking Method – A: Lift the lever to engage the locking mechanisms, then turn the cylinder one full turn to lock. To unlock, turn the key one full turn and push the lever down.

Notes
A practical and cost-effective replacement for installers dealing with failed Maco MK3 centre cases. Always check dimensions to ensure correct compatibility with the existing lock strip and handle set.