Elevator Forum

You need a full load to get the working pressure. Without that, you cannot set the relief pressure.

Had a similar problem with a hospital performing monthly testing of their backup emergency power. It had no provision for a pre-test signal to the con...

Unless the hall station is low voltage, you should not isolate it from ground.

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So, if you remove a wire on the LRU does it show all is well through to the MRCB and the Shifter BD. to the CPU? If so then do the same thing tracing ...

Try removing the wires, 1st at the MRCB in the car, if the status changes there, see if it changes in the MR on the shifter bd.

Brake tension?

The driveshaft goes down through the cable drum, on which the relating cables are wound. if this is loose the drum slips causing errors.

The motor encoder is basically a feedback encoder. In the previous post, I told you about checking the tension device and standing on your head to che...

you have to stand on your head to check it as I recall. But moving the doors by hand is inherently hard because the motor has a permanent magnet for a...

before you do anything make sure the tension device at the end of the relating cables is secure and operating properly. If it isn't it will act like y...

I assume you checked tthat the relay wasn't hanging in with residual.

So most of these release calls through either a contact on CR relay or through the floor bar and resister. The floor bar shorts the hall call by putti...

Is it always an empty car? Kone had a problem like that where it would only go into the overhead when the car was empty.

If your elevator is under the A17.1 2005 code you only have to comply with the code under which the elevator was installed.However, if the elevator ha...