Parts of Escalator

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