Help please - I have a problem with the lock/bolts fitted to my Monarch Aluminium double glazed door of about 25-28 years old. The handle on the outside when lifted up no longer moves the top and bottom bolts across but the inside handle does (the key still operates the lock). I am trying to take the lock mechanism out for replacement but cannot find how to remove the handles and then the locking mechanism. I have taken the small grub screws out but this does not release the handles. The lock is stamped Union 980 or 98C.
Any help or suggestions as to how to remove it would be most appreciated.
Remove NONSENSE to email direct.
Dave