Elevator Forum

Vertechs is well known for using them. If you would like to learn more about them, you can checkout the vertechs videos on this site. https://www.yout...

Don't forget about Argus. It's smaller and more compact in size. https://www.vantageelevation.com/solutions/argus-elevator-door-lock-monitor/

This is why Schindler 31/3300/5500 and TK Evolution belts have more robust grooves in them.

Just for the fun of it, those WG door operators remind me of the old Otis 7660 cable driven door operator. The main difference is that the 7660 has a ...

There are some mecs the work on Northerns on youtube. Here's the link to their channels. Maybe you can look at some of the Northern related vids (if a...

The Wittur SGV/AMD (TK ld-16 also related) has a GAL interlock refit (clutch) model. You have to change out the operator, which should be a breeze, be...

My bad. I missed the part where you said the pulley is not moving. Did you check the pulleys and belts for oils that shouldn't be present.

Did you check to see if the brakes need tightening? I couldn't tell if the pulley was in motion w/the belts or not from the video.

The main difference is that all belted MRLS (Schindler 3300, TK Evolution) are now directly supported in the code. 2004 only supported conventional wi...

Just FYI. I checked the KONE spares site. Complete MAC equipment is now rendered obsolete and is no longer sold. Only spare parts and upgrade kits are...

Most other countries have outlawed the use of harmonic door operators for the reasons I listed above. The US and Canada are the only ones still permit...

GAL is the last man standing that's still manufacturing harmonic door operator as a complete item. All others have either stopped them all together, o...

Does the existing system have a door restrictor as part of the Montgomery clutch? If so, you could probably get away with a like-to-like replacement; ...

My advice would be to get the Wittur SGV (AMD model similar). This is the same operator used by Vertical Express (TK), KONE, and Savaria. Both models ...

Did you remember to remove all your jumpers? Don't want a big boo-boo.