The gearbox is an essential part of the locking mechanism found in the door.
How to change a upvc door lock gearbox.
You can find replacement gearboxes here.
A video tutorial on how to replace a center lockcase on a fuhr gearbox.
So all you would need to do is find the screw that holds the barrel of the lock in place and tighten it.
Commonly this is the part that.
The fuhr multipoint gear box is suitable for most of the fuhr locking mechanisms easy to change gearbox and will swap over with just a starbit that comes free with the case the gearbox has a deadbolt and a latch and the backset can be either 35mm or.
Multipoint door lock gearbox case only fits gu old style upvc 35mm backset 92pz this is a replacement gearbox for old style gu multipoint locks.
Fuhr gearboxs can be purchased from upvc spares 4 repairs.
This will tighten the loose door handle and if done correctly your upvc door should be locking correctly and working again with no issues.
How to change a upvc gearbox or center case from www lockandkeyshop co uk.
Remove the lock mech by taking the handles off spindle out barrel out and remove only the self tapping screws along the length of the lock strip if you see any machine threaded screws put them back in as these hold the gearboxes onto the lock strip if you want us to id your lock for you first we need.
This is the single spindle version which can be used with lever lever handles.