rebuild/fix series anti burst lock how to.

[discomikey]

right then, me door locks were a bit stuffed, on 1 side the key would fit but it would spin right round and not lock/unlock the door, but it would from the inside. and the other side the key wouldnt fit. so i set to work replacing the barrels, which then lead to the rebuild of both sides.

so heres how to do it.

first i had to drill out the old barrels,

then the end of the barrel was stuck in one side, so i had to pull the lock apart. this was the side that i had no key for.

next the rivets need grinding off from the inside side.

once these are ground flat put a bolt through the bottom side of the assembly to keep it together while you knock the rivets through else the spring will pop out (not too important but just makes life easier)

then punch the rivets through

carefully prise the top off, making sure you dont drop or loose anything.

under the locking swively thing, is the half of the door lock that were interested in.

this just pulls out now the barrel is not in it.

and here you can see the bit of the barrel that is stuck in.

i decided the best way to get the end out, was to drill through and punch it out, so using a 2mm drill bit, i first center punched, then drilled through the center of the lock piece.

[discomikey]

once the hole is drilled, choose a suitable thing to punch the old bit out with. i decided that a rivet that just fit in the hole would be appropriate.

then tap it out gently with a small hammer

and heres the culprit

i then decided to fill the hole with a tight fitting nail hammered into it then ground off flush

putting the lock back together, push the thing back into the hole, then make sure the springs are right in comparison to the lugs on both the handle and the latch, this is important or it wont work.

making sure everything is as it should be, put the locking swivel part back on. and make sure the plastic locating plug is on the swivel part. this likes to jump out if it gets the chance so keep an eye on it.

place the cover back on, making sure the first spring is behind the cover and under a bit of tension, you will know what i mean, dont worry about the second spring for now, just put a bolt in the top side of the latch to keep it together

now, using a small flathead screwdriver, push the other spring into the cover, and bolt down the other side.

now, re rivet the cover back on using the origional holes.

and on the other end, this tab that pokes through, this needs messing up so to speak so that the edges burr and the tab cant come back through. this isnt too important as when the unit is bolted to the doors it cant come apart anyway.

[discomikey]

on the other side the lug which turns the locking swivel part had snapped off, enabling the key to spin right round and not do anything.

here is what i did, obviously the same disassembly procedure, but once i had got the locking thing out, i center punched and drilled with a 1.5mm drill bit where the lug used to be,

and tapped a small roll pin into the hole.

the hole for the roll pin was half in and half out of the main diameter of the bit that slides into the lock assembly, so it had to be ground flush, and the top of the roll pin was shortened a bit for clearance of the lock mechanism spring.

when put back together the lock works perfectly and is not weak, i did test it in anger before reassembly and it didnt so much as flex let alone break. good fix i say. hope this is helpful to someone.

[landroversforever]

Tech archive candidate I think! Nice one Mikey

[discomikey]

ta

[pete3000]

can you see the 2-3mm hole in the last picture in post 2? this is the barrell release thingy on mine. if you insert a pointy thin in with pliers it release the barrel. You have to have the key in to withdraw it in the unlocked position.

It is on the outside of the barrell cylinder underneath the lock barrel towards the lock plate.

You will see the corresponding locking blip when you get your new barrells.

Pete

[Lord Azrael]

As Pete said, there is a hole for releasing it if you have the key. I managed through careful drilling of the lock with a cobalt drill to get the mechanism freed off so I could pop the barrel out using this method on one of my spare locks, they are a bit of a pain though if you can't find the keys.

[discomikey]

can you see the 2-3mm hole in the last picture in post 2? this is the barrell release thingy on mine. if you insert a pointy thin in with pliers it release the barrel. You have to have the key in to withdraw it in the unlocked position.

It is on the outside of the barrell cylinder underneath the lock barrel towards the lock plate.

You will see the corresponding locking blip when you get your new barrells.

Pete

you are both correct, but without the key, these are useless untill the pins in the lock are in such a position that allows them to get past the lip (i.e. when the barrel is turned so that the brass thing is in line with said hole

[Lord Azrael]

Yes, that's what I meant with mine. By drilling through the barrel it actually released all of the pins inside therefore allowing the barrel to be removed with the external pin hole. It's a fiddly job though and it's probably just as quick taking the lock apart as you did.

[discomikey]

my problem was that when i removed the barrel, the end stayed in there, otherwise i woudlnt have to take it apart