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Multipoint Door Lock Lock 'gearbox' Replacement

Was du brauchst

  1. Multipoint Door Lock  Lock 'gearbox' Replacement, Problem with front door lock: Schritt 1, Bild 1 von 1
    • This door and it's lock is probably abou 22 years old. It's the type where you have to lift the handle to engage the 3 point locking mechanism. Recently this lifting started to get more difficult sometimes sticking and requiring several attempts to make work.

    • Note: The removal/replacement process may have to be done twice. First time to identify the problem and the make/model to order.

    • Subsequent to doing this I came across these youtube video guides for uPVC door lock replacement which it would be useful to view before doing this. https://www.youtube.com/watch?v=usEivKYL... https://www.youtube.com/watch?v=nEDbRB27...

  2. Multipoint Door Lock  Lock 'gearbox' Replacement, Remove door edge cover: Schritt 2, Bild 1 von 1
    • Remove door edge cover. Keep the screws somewhere safe in the order they are fitted so you know where to put them back.

    • Sorry about photos, getting a clear edge on photo isn't easy.

  3. Multipoint Door Lock  Lock 'gearbox' Replacement, Remove multipoint mechanism: Schritt 3, Bild 1 von 1
    • Remove the retaining screws from the moving part of the locking mechanism again making sure you know where they came from. There were only 2 on mine.

    • Take care as the parts become loose as the top and bottom catches are only held in place by the cover , you may want help here. Remove and place out of the way.

  4. Multipoint Door Lock  Lock 'gearbox' Replacement, Remove cylinder lock: Schritt 4, Bild 1 von 2 Multipoint Door Lock  Lock 'gearbox' Replacement, Remove cylinder lock: Schritt 4, Bild 2 von 2
    • Remove handle retaining screws and then carefully take handles off from both side taking care not to lose the operating shaft and any other parts.

    • Remove cylinder lock retaining screw and then remove lock making a note of which end is outside.

  5. Multipoint Door Lock  Lock 'gearbox' Replacement, Remove gearbox: Schritt 5, Bild 1 von 2 Multipoint Door Lock  Lock 'gearbox' Replacement, Remove gearbox: Schritt 5, Bild 2 von 2
    • Gearbox can now be removed. First time around this may simply to be to identify the problem and/or identify the make/model for replacement.

    • In this particular case there was cracking around the 'barrel' that takes the handle shaft which was causing the sticking.

    • To identify the make/model required for replacement I spent ages on Google. You need several key measurements and by studying various lock supplier websites I found it was almost the same as an older model Fullex type A.

    • Close study of the pictures on the websites seemed to show that the very top and bottom mounting points may be slighter thicker than mine. But I thought it to be a low risk as the door is wood cored I could chisel a bit out if neccessary.

  6. Multipoint Door Lock  Lock 'gearbox' Replacement, New gearbox: Schritt 6, Bild 1 von 1
    • When the new gearbox arrived there were a couple of plastic inserts that had to be removed. Don't forget to do that before installing (unlike me!).

    • Also note the latch came fitted the wrong way round but was easily rotated using it's screw.

    • A quick bit of chiselling allowed the new gearbox to fit.

    • As a precaution I greased what I thought would be key points of wear.

    • All that is left is reassembly by reversing the steps taken.

Abschluss

To reassemble your device, follow these instructions in reverse order.

Clive Ousbey

Mitglied seit: 04/05/20

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