Elevator Forum

A lot of the old Otis techs did this, on the lock hold and lift points.

I know we have in the past used separate hall call systems for the new and old lifts. This may even include using each side landing button rises for e...

Incidently I have over the years serviced lifts on what we called caretaker maintenance ie 4 times a year. We shut the lifts down, when completed. Eve...

Originally Posted By: Indirtwetrust You misunderstood. Otis had and still uses a remote monitoring system for the elevator like other companies have d...

Originally Posted By: SpaceLord Originally Posted By: pieman In fairness I think the upset was caused as you were given advice by some very experience...

This looks a little like the system that Otis did early 2000, but really didn't work all that well, and mostly got disconnected. Cant quite remember w...

Originally Posted By: jkh When you used your jumpers, the car wouldn't run down or it slipped traction and wouldn't move down? Yep the OP isn't spec...

Yeah our stuff nearly always had a separate group control supply, and didn't rely on parallel feeds coming from all lift to keep them active.

Originally Posted By: Indirtwetrust What are Spider gears? Is the spider gear, what we call the worm wheel or gear? The spiral lower gear that actua...

All elevators I have seen were supplied via a 3 phase bus for each lift, and the group controller. Separate supplies were required so that if there wa...

We have had great success in installing fake camera domes (even flashing led's) and signs that camera's now operate in the area, and any misuse will b...

I would suggest checking the resistors and contacts for breaks of wire or connections, in the area/contacts where it starts to fail, although its a go...

Here is some info regarding water hydro's in Melbourne CBD. If you walk around in the CBD, there are still plaques depicting Melbourne Hydraulic Compa...

From my old notes the rope would sit around 55% of diameter below the cross line of the vee groove across the whole 4 to 6 grooves. Any more than that...

Ah of course my bad!! I wonder if the sheave isn't the right size for the ropes, ie too tight?