Video Knowledge / Video
Original Sussex Installations video

Van locks - Deadlock and Slamlock maintenance and cleaning out if they get stuck

Dec 13, 2016 · 12,319 recorded views

Video ID: H60WWCxWzfAMaintenance and ownershipDec 13, 2016 · 12,319 recorded views

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Jeff Scott's retrospective context — 2026

This is still a useful lock maintenance video with benefit all around, really. If a customer of ours was having problems with their locks months or years after we'd fitted them, we could simply send them this video to try as the first course of action. And if a van owner we'd never fitted locks for found it by searching the internet, or by contacting us and us sending the link out to them, then I'm happy I could help them too.

Nine times out of ten you'll probably find that this is actually enough to cure it, and you're up and running again.

I used to get couriers stuck, not able to get into their van's slamlocks, with a hundred parcels on board that needed urgent delivery. I'd ask them to clean their deadlock out by spraying cleaner into the lock, describing it over the phone exactly like I show in this video. Nearly all of them would say they'd already done that and it still didn't work, so I'd drop whatever I was doing and drive a two-hour round trip on a chargeable emergency call-out, and ninety percent of the time, doing exactly what's shown in this video would get the locks working again. Locksmith emergency call-out rates have always seemed steep to me, and it felt like a waste of a courier's money nine times out of ten when I'd arrive and simply clean their locks out. It might seem like bad business to give away information that could lose me a lot of easy call-out fees, but I've always wanted my customers to get real value for their money. This video with 12,000 views, might have saved tens of thousands of pounds in call-out charges between all the van owners who have watched it to help themselves out of a jam, if this video has helped you, then you're welcome!

Original description

This video shows the monthly maintenance procedure for your van deadlocks or slamlocks. It also shows what to do in the event that the key no longer turns.

It is very important to maintain your locks, especially in the winter time.

You can get in touch with us via our website https://www.sussexinstallations.co.uk

Music by bensound.com

Common questions

How often should you maintain a van deadlock or slamlock?

On a monthly basis: spray a PTFE-type lubricant such as GT85 or the official Locks 4 Vans lubricant through the jaws of the lock, then work the key in and out a few times before turning it.

What lubricant should be avoided on van locks?

Lubricants such as WD40 should be avoided, as they can actually make the problem worse rather than clearing it.

What should you do if the key won't turn in the lock anymore?

Give the lock a more intensive clean out: spray several good bursts of lubricant into the jaws, working the key in and out between sprays, until the dirt and debris that has built up is flushed out and the key turns smoothly again.

Transcript

Show transcript
0:00 -hi I'm Jeff Scott from Sussex
0:01 -Installations, today's video is about lock
0:05 -maintenance, okay so first off make sure
0:07 -you're using the right type of lubricant,
0:09 -using a PTFE type of lubricant such as
0:12 -the official Locks 4 Vans lubricant or a
0:14 -GT85, don't use uh silicone-based
0:17 -lubricants such as WD40, cuz you're
0:20 -actually just making things worse, take
0:22 -the straw, take the straw, push it through
0:25 -the jaws of the lock, so if this lock has
0:27 -got like shutter doors on it, then you
0:29 -need to push the the straw through the
0:31 -shutter doors, so when you spray the
0:32 -lubricant it's going to go inside the
0:33 -lock, now give it a couple of squirts
0:37 -like that, and then you can take your key
0:39 -and then use the key to work it in and
0:41 -out, in and out a few times, and then turn
0:44 -the key, and that's your monthly um
0:47 -maintenance of the lock, so this is what
0:48 -you should be doing on a monthly basis,
0:50 -if you got to the point where your key
0:52 -actually won't turn in the lock anymore,
0:54 -or you've not done this for a for a lot
0:56 -of time, you might need to, you know, you
0:57 -might have some work on your hands and
0:58 -you're going to need to give it more, an
1:00 -intensive clean out and lubricate, so put
1:03 -the straw inside the jaws, and now you're
1:05 -going to want to spray for a good few
1:08 -seconds, see all that rubbish pouring out
1:11 -of the lock, now see all that crap, lots
1:14 -of it coming out of there, a good spray
1:15 -for a few seconds at a
1:17 -time, and again, then put the key in and
1:20 -out, work the key in and out, sometimes
1:23 -what I would do is actually then as well
1:24 -spray on top of the key while I'm
1:26 -pushing the key in and out, so it it
1:28 -pulls it and takes it all inside the
1:29 -lock,
1:31 -probably, now take the nozzle, put it back
1:33 -inside the lock, and again another couple
1:36 -of long bursts of
1:40 -spray, take the key, work it in and out
1:43 -again, and it's just this time of year
1:45 -where if you haven't been doing this on
1:47 -a regular basis, or there's just a lot of
1:49 -dirt on the roads, lot of salt on the roads,
1:51 -you do need to do this and have a clean
1:52 -up, so if you're finding that your key is
1:54 -not turning in the lock, or it's not as
1:55 -smooth as it used to be, carry out this
1:57 -maintenance, and nine times out of ten you'll
2:00 -probably find that this is actually
2:01 -enough to cure it, and you're up and
2:02 -running again, so thanks for watching the
2:05 -video, uh if you need any more advice, or
2:07 -if you need uh us to book you in for a
2:09 -service call to come and look at your
2:10 -locks, get in touch by the website, it's
2:13 -www.sussexinstallations.co.uk, thanks for
2:16 -watching
2:29 -[Music]

Transcript source: the YouTube transcript supplied for this project with minor corrections. Automated transcripts can contain recognition errors and should be checked against the original video.

Page details

Author
Jeff Scott
Publisher
Sussex Installation Team Ltd
Updated
2026-08-27
Primary focus
Maintenance and ownership

Related knowledge

Jeff Scott, founder of Sussex Installation Team Ltd
About the author

Jeff Scott — Van Security Specialist and Industry Educator

Jeff Scott is the founder of Sussex Installation Team Ltd (Sussex Installations). He has fitted vehicle-security systems since 1997, started Sussex Installations in 2003 and has specialised in van security since 2008. His work combines installation, vulnerability research, product design, UK manufacturing and long-term public education.

In 2009, Jeff published the first known YouTube video explaining mechanical key-operated van deadlocks. He has continued documenting van-security products, installation standards, vehicle vulnerabilities and changing attack methods ever since – earning his description as "The OG Van Security YouTuber."

Jeff has supported thousands of professional vehicle aftermarket technicians across the UK and beyond with access to technical information, while actively promoting higher quality installation standards through his trade community ifitstuff.com since 2006.