Elevator Forum

FYI, 8.6.4.6.2, states that if any adjustment is made to the Brake, that affects the holding capacity, you must test it. It also references 8.6.20.4, ...

Digital meters are too slow to catch a quick power glitch. Try a Triplett or a Simpson analog meter. When the contactor pulls in, you may be bouncing ...

Perhaps the ropes have stretched, and you are breaking a buffer switch.

You can probably drift it off the bottom final. Lift the brake, you may have to help it by prying on the brake pulley.

If this is part of a group, or a duplex you can look at those parameters. If you init the drive, you will lose all the field programmable parameters. ...

Check your brake springs. You should be able to move the washer under the springs. They should be finger movable.

do you have freight doors? If so does the cam retire?

I do believe the SIO find is a good one. But I also know after working on these,that there is still a software problem. When they first came out, they...

I agree, Brake failure is very possibly the culprit. The controller should have faulted, and set the brake.

Not familiar with the 2100 designation. Is this a standard 3 stop hydraulic, with inputs that are red, and outputs that are green? if so has anyone lo...

Very interesting. I will remember this one. Good find.

It is a software issue. Therefore nothing us mere mortals do will make it better. I know, I tried everything you did and more. I worked for this compa...

Cold oil, and a Dover valve. It happens a lot. Heat the oil and the problem will go away.

This was a software glitch that went on for years. It would happen I believe when the car was directed to park on another floor, because a different c...

Outputs should read to ss, as they are ground when in the on state. They should read 120 AC only. Inputs are 120 AC only, when referenced to L1A, or g...