A customer in Wembley got in touch because an aluminium tilt-and-turn window was blocked shut.
The handle would spin round and round without engaging the gearbox.
I worked through several different opening methods and tools before eventually releasing the mechanism and opening the window without causing any damage.
Tilt-and-turn locking systems run around much of the window frame and the parts can be awkward to identify and source. Some systems are obsolete, and even when parts are still available there can be several similar versions.
Because these mechanisms are relatively uncommon, expensive and difficult to identify until they are removed, they are not practical items to carry routinely in van stock.
On this occasion, I managed to identify the correct part through one of my suppliers.
I returned the following day, fitted the replacement and made the required adjustments.
After a generous amount of lubricant and final testing, the aluminium window was opening, closing and locking properly again.
