Elevator Forum

I wonder if the encoder could be loose. I’m also always suspicious of those plastic limit bands. I’ve had them fool me to many times.

I think the filter was plugged. I thought that they’re there to keep the oil smell from the hoistway and the tanks are bolted and gasketed so water ca...

I have seen the tank vents not allowing enough airflow causing bouncing in the up direction.

I’m not sure what version of NFPA70 your AHJ is currently using. The version I’m looking at 620.11(B) for the type of cable allowed. Probably the jack...

I’m sorry, reading my previous post the 150v picks the hw relays and their contacts give a low voltage signal to the clc. Also I’ve had clutch clearan...

If you’re sure that the locks are good, then the hw relays could be bad. They convert the 150v to give a signal through the travel cord back to the si...

Since it’s happening on both doors I think I would look at OD,and ODR to make sure it has enough time for a full travel. Those relays in the controlle...

Hi, I wonder if G2C2 is still running normally? When you say car 1 runs do you mean inspection or car calls and won’t take hall calls?How is group pow...

Good idea keeping some spare up adjusters they seem to leak and plug often. I also had a spare plate that they screw into so that I could swap it as a...

I would recommend looking at A17.1-8.10.3 acceptance inspection and tests of hydraulic elevators. Maybe you can find the code references that you’re l...

Usually I ended up replacing both BK and MC to eliminate fault 54. Not sure that’s going to help with NTS or ETS but it seems like sometimes when you ...

I had one do that because the charcoal vent plugged so the tank couldn’t get air. But with low pressure I would check for a bind in the hoistway. Mayb...