Transportation Learning Center | Evaluated Learning Experience
1. Escalator: Principles of Operation (208)
Transportation Learning Center, Silver Spring, Maryland, and approved locations.
88 total combined hours: Course 1: 8 hours. Course 2: 16 hours. Course 3: 16 hours. Course 4: 24 hours. Course 5: 24 hours.
Course 1 – 5: August 2012 - Present.
Course 1: Upon successful completion of the course, students will be able to: summarize the basic design, components, operation, functionality, and maintenance of escalators; demonstrate basic competency in the proper safety procedures and equipment needed to maximize injury prevention including safety labels, shock hazards, fire safety, work area protocols, and lockout-tagout procedures; identify components of escalator design and layout to ensure proper operation, maintenance and control systems; describe escalator sub-systems and functionality for drive systems, handrails, auto-lubrication systems, and braking methods; define safe electrical practices; identify and locate major components in the electrical control systems; and identify potential hazards, obstructions and understand protective measures and stop methods to prevent accident or injury. Course 2: Describe principles of basic safety “best practices” protocols and selection of proper Personal Protective Equipment (PPE) when inspecting and maintaining transit escalators; explain the electrical distribution systems and the electrical control circuits; list the location and functions of electrical safety devices within electrical circuits found in transit escalator systems; list the basic start-up sequence in a transit escalator utilizing a diagram; and follow procedural steps in testing and applying proper maintenance procedures for transit escalator electrical systems. Course 3: State basic escalator step installation and maintenance safety procedures, basic steps removal procedures, step replacement procedures, step rollers removal procedures, and step rollers replacement procedures for transit escalators; identify step band maintenance and step chain procedures and state the basic step band alignment and adjustment procedures for transit escalators; and describe the procedural steps in inspection of transit escalator steps and document problems as necessary. Course 4: Identify specific safety issues and proper safety practices related to handrail inspections protocols, maintenance procedures, and replacements practices; describe the steps in removal, repair, or replacement procedures of handrail and major handrail components in various transit escalators; list proper procedures for measuring handrails; explain the proper methods for handrail drive tension and handrail alignment and adjustment for transit escalators; identify types of handrails, handrail drive systems, component parts and installation methods (loop and splice) for various transit escalators; explain the vulcanizing and splicing process of a handrail; the proper methods to store and coil a handrail; and perform the procedural steps in inspection of transit escalator’s handrail and document problems as necessary. Course 5: Describe principles of basic safety protocols, preventive maintenance practices, and proper lubrication methods when inspecting and maintaining transit escalators; list steps in performing inspections, housekeeping, and maintenance on lighting systems, heating systems, handrail systems, step systems, all major components in the pits, all components on the incline, all components in the machine rooms (including all electrical systems, mechanical systems, interlocking systems, and ancillary components – (i.e., fire extinguishers) in transit escalators; list basic preventive maintenance practices (including inspection and repairs for modular drive systems, chain drive system, and gear drive systems); describe the proper start-up procedures, speed and systems checks in a transit escalator; state the basics of the inspection and maintenance of the braking systems and remote monitoring and communication systems in transit escalator; and list the procedural steps in testing and applying proper maintenance procedures per the code mandated safety requirements and standards for transit escalators.
Course 1 – 5: Instruction is offered via classroom through use of study guides, required and supplemental readings, quizzes, in lab or on-hands at work site(s), required interaction with instructor, and final exams.
Course 1 – 5: In the associate degree/certificate category, 4 semester hours in Mechanical Systems (8/17). Note: All five courses must be completed to gain access to the credit recommendation.