Lock sticking

Soldato
Joined
31 May 2009
Posts
21,117
Front door, lever style lock, cylinder barrel.
The style of door you pull the handle up to active the levers before locking.
It is sticking at a biting point, which isn't related to the cylinder.
I replaced the cylinder thinking the keys were sticking, but it seems to be the actual lever mechanism.

How can i go about sorting this, one had to push slightly against the door and strain up quite hard on the handle to engage the levers sufficiently for the cylinder to turn freely.

Is there some way to adjust or lubricate the cylinder system.
 
Soldato
OP
Joined
31 May 2009
Posts
21,117
Yes, thanks.
The issue isn't in the lock cylinder, I think it's in one of the mortice levers, but I am unsure how to deal with them.
 
Soldato
Joined
1 Mar 2010
Posts
17,793
some of this - bottle blows it in via key-hole

(exactly if you look at the residue wd40 leaves and think of that coating the lock pins etc. god help you)

as a pre-emptive lube - this works wonders for ignition barrel too( if keys are a bit worn )... yale locks, padlocks ....
Kasp K30050 Graphite Powder £3.54
 
Caporegime
Joined
22 Nov 2005
Posts
42,825
Location
Newcastle Upon Tyne
is it pvc? they always seem to warp over time or bend whatever.

you can probably realign it, have a google or post pics of the hinges and other mechanisms
 
Soldato
Joined
2 Nov 2002
Posts
2,805
It might be the hinges that need adjusting, I believe there's adjustment screws on the hinges (assuming a uPVC door?)
 
Soldato
Joined
1 Jun 2013
Posts
9,223
Front door, lever style lock, cylinder barrel.
The style of door you pull the handle up to active the levers before locking.
It is sticking at a biting point, which isn't related to the cylinder.
I replaced the cylinder thinking the keys were sticking, but it seems to be the actual lever mechanism.

How can i go about sorting this, one had to push slightly against the door and strain up quite hard on the handle to engage the levers sufficiently for the cylinder to turn freely.

Is there some way to adjust or lubricate the cylinder system.

There is often some adjustment in the frame where the bolts go from the door into the frame. Mine has some small screws to adjust the capture plates in and out. This would work if the problem is the locking bolts not being positioned correctly into the frame.

The alternative is that the mechanism is old and grubby. When I had this issue where the locking mechanism was sticking badly, I found lubrication holes in the top and side of the door locking mechanism. I sprayed WD40 penetrating fluid (put some newspaper under the door to catch the drips) and that seemed to clean up the lock innards which made it operate smoothly and cleanly.
 
Soldato
Joined
18 Oct 2002
Posts
11,700
Location
Cheshire
I had a similar problem and it was the latch mechanism (multipoint gearbox) As you lifted the handle, part of the mechanism was giving way which meant it didn’t throw the locking bars as well. It eventually completely failed and could’ve locked the door solid. I bought a replacement gearbox for about £50.
 
Soldato
Joined
22 Jul 2004
Posts
10,951
Location
Up north in Sunderland
Front door, lever style lock, cylinder barrel.
The style of door you pull the handle up to active the levers before locking.
It is sticking at a biting point, which isn't related to the cylinder.
I replaced the cylinder thinking the keys were sticking, but it seems to be the actual lever mechanism.

How can i go about sorting this, one had to push slightly against the door and strain up quite hard on the handle to engage the levers sufficiently for the cylinder to turn freely.

Is there some way to adjust or lubricate the cylinder system.

Check it with the door open, if it's fine then it's likely the door needs adjustment, this can be done with the hinges and the keeps on the frame. It could be the latches are catching the edge of one of the keeps when trying to engage.

If it's still playing up with the door open it is your mech. These are easy to strip out and can be either repaired or replaced.
 
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