|Posted by Deuterium|
Don't screw around in elevator shafts if you don't know what you're doing. Traction machines are especially dangerous since they have counterweights and cables. Each high rise elevator has counterweights that weight about the same as a car and they travel alongside or behind the cab in the opposite direction. The motor is around 40 hp. Most elevators are actually designed so you can't open the hatch from the inside to keep people from getting into the shaft and getting hurt trying to escape on their own. The most significant hazards are adjacent cars and their counterweights.
If you open the door to hoist way manually from the outside, some computerized elevators, especially newer ones in high rise with multiple elevators will flag a tamper or trouble message in building automation system. Same goes when you activate the service mode or fire mode.
I'm more interested with what can be done from inside the car or maybe control room to gain access to floors which are usually disabled, such as floor 13 or a hotels penthouse which seems to be common ones.