Code cracked, entry gained to a CLASSIC SCHINDLER relay motor room
120,745
Published 2015-11-20
I'm back and this time I'm in, and up the ladder - WHAT A CLASSIC! Yep, the lift is an original TOTALLY RELAY LOGIC controller, with the Schindler selector wheel which is quite fascinating to watch.
HERE IS THE LINK FOR PART 2:
• The SCHINDLER WHEEL SELECTOR & MORE!
Now let me explain...
I AM AN ENGINEER. This means I understand the technology in use here and (as you'll see in the next video) I understand some of the relay logic that makes it work. I understand how the call buttons work - it's a latching relay circuit. If you search my channel then you will find this video (it's one of my most popular videos):
• The easiest LATCHING RELAY CIRCUIT to...
Here I explain how a latching relay works. On this lift, the relay coil is normally energised by pressing the call buttons in the lift car, then the electromagnet holds the relay on via some of the relay contacts (i.e. a latching relay).
I'm not out of my comfort zone as I understand what I am doing and I've done it many times before (even with a lift engineer present!).
I'm not in this motor room to cause any problems or faults, it's simply an interest that others also find interesting.
When these lifts are finally modernised, away goes the history, lost forever. No-one cares ;'( and there are not many of these original lifts around anymore.
HERE IS THE LINK FOR PART 2:
• The SCHINDLER WHEEL SELECTOR & MORE!
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All Comments (21)
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I cannot get over the cleanliness of that equipment. Even the relays and contactors look squeaky clean!
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2:28 - pro tip: with these mechanical locks that require a code, it typically doesn't matter which order the numbers are entered, so if you see 4 buttons that stand out then there are 24 possible combinations of those 4 digits, plus the fact each number can only be used in a code once... you get the idea, these things are super easy to defeat. If you have frequent access to the building, you could put a really faint line of pen or pencil on all of the buttons, not noticeable to the untrained eye, wait a few days or something, go back and see which buttons have the marks rubbed out, test the code, then rub the mark of all the buttons so nobody could possibly see it at a later time.
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Love this. Thanks for taking the risk and time to share these equipment rooms. That wheel system and relay panel are something to behold.
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Tip for the mechanical code locks. The order that you enter the correct numbers / letters does not matter, so long as the correct ones are depressed. The "C" button clears any previously depressed buttons. Look for fingerprints on the buttons. Press "C" followed by all those with prints or worn surfaces. That's it, lock open. If prints are not obvious, polish the buttons up with cloth, sleeve etc and return after a few people have unlocked it. Prints can now be seen.
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Epic! The motor sound is amazing!
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I'm definitely going to watch part two, I like learning about how stuff works ^^
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Pretty nice seeing this machine work
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I love that relay contact wheel. reminds me a bit of old washing machine program clocks :)
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UGH!!!!! This was just a teaser for Part 2. Loved it and can't wait for the next video.
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Loving the detail and the dedication!
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that is one darn huge awesome sounding motor!
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I love that dynamic brake sound (I think that's what it is). I've also heard it on commercial washing machines.
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Wow! That floor-selector as well as the controller actually looks very clean and organized. I guess they try to keep it an that good shape. :)
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satisfying sound on 8:02 xD
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I have seen a few elevator/lift videos on youtube and yours are the best
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I would have thought that you would encounter water tanks quite often in that kind of work with Tanks often being situated on roofs. The college I was at in the early 90s had a couple of Otis lifts from the late 60s on two sides of the building. The roof on one side was visibly strengthened and you knew there would be a large tank above!
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Great video, nice colours on the drive wheels too. Thanks for sharing this video with us.
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i absolutely love the sound the motor makes when it spins up then spins down to stop it sounds so digital 7:22
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I love everything about this lift! Tends to be Schindler and Otis that takes my fancy.
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i found it really amusing how you did that code crack lol
