Elevator Forum

So after the signal from the switches go to the car panel board, they go through the travel cable to the hydro level shifter board in the MR Control p...

I do not have a print in front of me, but what I remember is CS pulls in with the second slowdown and drops out when the door times out. If CS stays e...

I inspected a Kone Mono that Otis installed the wrong ropes on and it really tore the driver up. I think the diameter was incorrect and the core was n...

The leveling switches should be 3/8 of an inch when encountering The magnet. the polarity of the magnets alternate, so if the bottom mag is north poin...

Are you sure this is an HS controller? They did not use the 61N designation. You may be using the Kone Hydro controller, or you are using the wrong pr...

I would look at the capacitors that are paralleled around the contacts on the open and close relays. One of them is most likely shorted.

if the inputs are not lighting up it is possible you have a bad power board, or a bad card rack. Sometimes a bad input can cause this also. Did you tr...

You can jump the ESB input to SS to reset the fire service. However, make sure your inputs are 120vac. There were a lot of 24v inputs out there also.

I would especially look at the velocity encoder and coupling, and of course, the encoder wiring should be shielded and separate from any other motor w...

Many things can affect the ride quality. The parameters are the usual culprit but do not discount the encoders, velocity, and position, the hoist rope...

This is what happens when a salesman does the Mod Survey. Keeping a 50-year-old motor and brake is ridiculous.

It is possible to do this by adding a key switch next to the car call button, then adding a relay in the COP to energize on Phase II with one of its c...

We used Green Slime from Texacone to salve the piston, and either Cat oil or Transmission Fluid to add to the tank oil. FYI, Telescoping jacks are the...

That fault could also be caused by a loose or broken ground wire in the Tach shielding.

Abe is correct Tellus 32 instead of 38. Hey, I have been retired for 11 years so I should quit trying to remember numbers. LOL