Across
- 3. located at both ends of escalator; stops the drive machine and applies brake
- 4. steel angles attached to truss guide step rollers and control step motion
- 5. synchronized with tread motion for passenger stability and support
- 6. designed for maximum passenger safety stepping on and off; side panels of the escalator
Down
- 1. sprocket assemblies, chains, and machine work like bicycle chain drive
- 2. ada requires these with minimum of two horizontal treads before landing plate to allow people to adjust before leaving escalator
- 4. welded steel frame supports escalator on both ends, and in middle if rise is over 18'; provides space for mechanical equipment