Dover elevator with oil viscosity control active
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- เผยแพร่เมื่อ 28 ก.ย. 2024
- notice how the motor is running without the actual lift moving... At the time of the shooting, I was unaware what It was doing. Why is the motor running with no movement? This is being done to maintain oil temperature. Facebook: / dieselducy
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How come you are so good at sacrificing you're camera at the end of your videos
There's nothing wrong with it. It cycles the oil periodically to prevent overtravels and bad-levelling.
push em all in sequence, then reverse sequence, then primes, then extents, then odds, then evens, then push em twice each in ascending order, after that spin around and say "I love to play digem butts while I ride a dover" three times (best done when other passengers are present)- once you have completed these important tasks, you will be worth of consideration for the secret floor club
elevators are awsome. i love having elevator fun. i have ridden a lot of dovers. but never one that is not working right.
i have been on a dover before. actually like 10. they never failed me.
The Schindler MT elevator at the former JCPenney at Valley View Center Mall is from the mid 1990's. The call button on the 1st floor said "UP" instead of an up arrow
What is dry power?
"The messed up Dover"
I like the motor. Is that a dry-powered elevator? I always wondered...
Andrew,did you take off i got stuck in the elevator last nite?
Here is what an elevator man can tell you about this elevator. That is a Dover DMC with a dry-mount pump, probably a 30 or 35 horse motor, attached to a solid state "soft start" motor starter. Here's how I know. If it was a "relay logic" elevator, you would be able to hear the mechanical floor switches as it passed them. Thus it is a DMC with a tape selector. The sound the motor makes when it fires up is that of a soft-starter instead of mechanical "across the line" or "Y"/"Delta" starters. If you'd like to learn how to figure all this out from a 4 minute video, I suggest you apply yourself to the five-year apprenticeship. Then you'd know that the "running while not moving" is very normal and common.
Thanks for the input and im kinda embarassed that you found one of my older videos where I was fairly igonrant. I have since this video was made learned ALOT about elevators. Anyway I have learned that most modern hydraulic systems do this to maintain oil temperature. If I could talk to you sometime I would love that as I always enjoy talking to people actually in the industry..
My school elevator does this ALL The Time
I guess you never heard of viscosity control. Most elevators which have outside machine rooms or shafts, like a parking garage, have a special function that lets the oil stay at operating temperature. This is done by forcing oil through the valve without letting the machine run. That Dover is working as designed. The design also brings it down to a programmed floor, usually the lowest, to make sure as much oil as possible is in the tank. Ask an elevator mechanic next time before publishing something like this.
Im sorry you had to see one of my early videos where I knew very little about elevators..
***** Ok, I want to know, why do you tell everyone to shut up?
***** What happened to the video I got stuck in the elevator last nite?
I wonder what would happen if it was low on oil and started viscousity control on the top floor. Yeah that would damage the pump.
that is a fire waiting to happen!!!
The Schindler HT Elevator at my middle school had that same thing
Can we get an update on this elevator? Is the motor still running when it's stopped? Are they still doing lots of construction work on the parking garage?
I never know that an elevator could park at a floor
Hydraulic elevators do this to reduce strain on the lift system.
If it sat at, say, the 4th floor, then the main ram is under the weight of the car all the time. Oil can leak past the seals, and create problems.
By parking on the first floor, the car settles onto its ground supports and takes the strain off the main ram when the elevator's not in use.
I know a vintage 80s OTIS/C.J. Anderson elevator that parks on the first floor.
Hey Michael Morgan, stop namecalling Andrew.
The only elevator I've ever been stuck in was a Dover Impulse a few years ago (Might have actually been a ThyssenKrupp). I've never been stuck on an Otis or a Schindler, despite the fact that I don't really like Schindler.
The hydraulic kone elevator in town usually malfunctions in hot weather, I guess the oil becomes too thin when its warm, and leaks resulting in low pressure so elevator won't move and does weird things.
It was cycling oil.
that's just 1 half famous and half infamous elevator. all those elevator photographers on TH-cam know about this elevator. since it gets stuck a lot and stuff like that.
Maybe an invisible man pushed the elevator button at floor 2
You can tell it parks at G* and 6 a lot, as the indicators are near burned out.
Whats the link to the video where dieselducy gets stuck in this elevator.
I'm looking for this video and I can't find it... :(
I think he removed it :(
He just made it public again
So, is it fixed?
@dieselducy how did you get out on the first episode??
the elevator pushed its own buttons on 2 1 and G
wow the elevator moder runs if the elevator is not moving.on the market parking deck
we have those same dover elevators at my mother's job I hate them i got stuck in one for 5 hrs on the top floor on my way down
and a waste of a lot of energy.
0:03 had me dead
0:27 umm not such a good idea...
0:27
ride your scooter down the garage lanes to prevent gettin stuck :)
Dover Elevators Got Bad Hydraulic Oil
Just because you don't have even an elevator company!
does..
this guy have nothing but videos about one elevator?
What the fuck?
1.that is the fan making the noise
2. His friend is pressing the th Button on floor 1 and 2
3. He is gay
Dover elevators are crap
dovers absoluting craps elevators
They are a CoC
I like dover elevators
Viscosity control theres actually a US patent with the details:
Dover Corporation, Memphis, Tenn., a
corporation of Delaware Filed Aug. 16, 1968, Ser. No. 753,105 Int. Cl. B66b 1/04 US. Cl. 18717 14 Claims ABSTRACT OF THE DISCLOSURE In a hydraulic elevator installation, a thermostat is included in a closed loop path in which oil may be recirculated by a pump. A valve controls exchange of fluid between such path and the jack for the cab so as to cause the cab to move up and down or be parked. The thermostat responds to a drop in oil temperature to a cut-invalve to cause the pump to recirculate fluid in the mentioned path until the oil is heated by turbulence effects to a selected higher cut-off temperature. Recirculation for heating purposes is continuous over the period the thermostat signals for heat except when the cab is required to respond to a down movement signal. In the absence of other control, the cab is lowered to and kept at the lowest floor in response to the thermostat signal so that most of the oil of the system is out of the jack and in the closed loop path to be subject to heating.
It looked cold outside, possible viscosity control to prevent the oil from getting too thick and cold and also to keep the fluid warm and usable so it wont be so bouncy
It was cycling oil.
It's cycling oil.
It's like a car engine running in neutral.
it did the same thing with the Dover at the Memorial Hospital CA the motor was on but it stayed in L1 I wonder why?
probably just keeping the pipes pressurized
Dover is actually one of the first that started oil cycling.
It stopped at 2 and 1 because someone pressed the button and didn't use it! Not nice!
I have observed a 2002 Schindler do that. When the door closed the motor would start up but the elevator never moved.
At least it's working (somewhat) right. If it don't get stuck, that's fine with me. Although if you know the management contact, you might want to give them a call/message.
In its preferred form, however, the invention relates to elevator installations with hydraulic systems which are rendered of closed-loop configuration by the mentioned by-pass means, and in which heating of the fluid is primarily accomplished by recirculation of the fluid in the closed loop path therefor. As an aspect of the preferred form of the invention, if the cab is above the lowest floor when the thermostat means first signals for heat, the cab is lowered to that floor and is kept at such floor in the absence of calls requiring up movement of the cab. In this way, most of the fluid in the jack means is forced out of the jack means and into the recirculation path so as to be subject to recirculatory heating.
that guy who calls you press the elevator button, I'm not stupid
how many times did you say "now watch this!" during the video?
Very Intersting but i wonder that why the elevator stop on every floor but is not supposed to stop on every floor it supposed to go down all the way to the first floor wich is the ground Level. The reason why the motor is running because so it can heat the oil so it can leveled property.
is it night time?
Yeah it was
maybe the motors are running only when its stopped becouse its recharging its hydralic pressure? And maybe its running out of pressure, maybe thats why you stopped in the other videos?? im not sure.... :S
maybe the motors are running only when its stopped becouse its recharging its hydralic pressure? And maybe its running out of pressure, maybe thats why you stopped in the other videos?? im not sure.... :S
thats not good for that elevator it will over heat and give out
lift
Why is the number 6 sideways
But still I do like dover elevators
hmmn that DOVER elevator fixed? hello dieselducy !
it runs to keep the oil flowing and warm
In the middle of the summer?
I've seen a couple of new Otis hydraulic elevators that do that. It sounds like they're about to go up but they don't go anywhere and all you hear is the hydraulic motor. I'd like to find out why they do that.
It does this to regulate oil temperature.
at least it's moving
u should open the phone cabinet
The elevator stop at 2 with the heck
yep.
Maybe 'good-for-nothing' yobs (Messed up teenagers, they are normally quite nice) called it at 2 & 1? Anyway, Maybe the motors starting up because of an error with the lift-to-motor control interface? It's telling the motor that the lift wants to move (When in actual fact it's not) and when the call button is pressed it finally becomes correct and says that the lift isn't moving! The doors close and the problem begins again.
Actually, it's doing something called viscosity control. You know, where it's motor warms the oil by cycling it back and forth in the tank without letting the elevator run.
Patrick on the phone!
oh
at ground floor the door wouldnt open
this elevator really has a lot of problems
DRaminfard The reason why the elevator motor starts up in the elevator does not start moving is because is being done to maintain oil temperature it’s not “messed up”