Classroom on demand

Welcome to Classroom on demand, your source for educational materials related to the vertical transportation industry. This site represents the knowledge and expertise of the best engineers and mechanics in the elevator industry, and will help those new to the elevator industry learn about the basic workings of elevator systems, and also will serve as a reference for people with more experience.

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1 Glossary

Conventional JackThe type of hydraulic elevator mechanism whereby a cylinder mus...
Jack ProtectionThe A17.1 Safety Code for Elevators and Escalators requires that ...
PlungerThe inside, moveable part of a hydraulic jack that is attached to the pla...

3 The Hydraulic Elevator

Conventional (Multi-Section) JackIn some cases, conventional jacks can be as muc...
Jack DesignsHere's a closer look at two types of jacks used on a hydraulic eleav...
Jack ProtectionThe A17.1 Safety Code for Elevators and Escalators requires that ...

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