Transportation Learning Center | Evaluated Learning Experience
1. Elevator: Principles of Operation (213)
Transportation Learning Center, Silver Spring, Maryland, and approved locations.
232 total combined hours: Course 1: 24 hours. Course 2: 72 hours. Course 3: 20 hours. Course 4: 24 hours. Course 5: 32 hours. Course 6: 24 hours. Course 7: 24 hours. Course 8: 8 hours. Course 9: 4 hours.
Course 1 – 9: August 2012 - Present.
Course 1: Upon successful completion of the course, students will be able to: explain safety strategies, recognize worksite hazards, use proper lifting techniques, locate SDS information, differentiate between phases of Fire Services and requirements, and how to remove electrical power using the elevator main electrical power disconnect switch; describe 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 and locate major hydraulic elevator components, control systems, and explain the basic operation of a hydraulic elevator using the proper terminology; identify and locate major traction elevator components, roping methods, control systems, and explain the different types and basic operation of a traction elevator using the proper terminology; identify and explain different components, configurations, and basic operation of elevator door systems using the proper terminology; describe the functionality and locate the major components of the elevator operation, drive control systems and explain the differences between the two systems; apply and discuss the applicable standards (I.e., ASME, ADA, and NEC codes) using the code data plates for elevators. Course 2: Use proper terminology and describe specific major components, (including safety devices in the elevator safety circuit) used in elevator electrical circuits; state the proper basic sequence of operation for both traction and hydraulic elevators (including stopping at floors, re-leveling, and door operations); troubleshoot a fault condition in elevator electrical circuitry, determine the proper conductor’s sizes and wire sizes (including elevator’s traveling cable) per code; identify types of motors, motor protection devices and starter systems for transit elevators; trace and identify with schematics of various controls, switches and describe the functions of starting, controlling speed, directions, and stopping motors. Course 3: Describe possible hazards, specific and restricted hazardous areas associated with traction and hydraulic transit elevators; identify associated major components of gear drive systems and gearless drive systems; state methods to control the gear drive and gearless drive systems; describe the proper operation and explain the differences between the geared and gearless drive systems; explain the operation of direct-acting hydraulic cylinder drive systems; identify major components and variations in the direct-acting hydraulic cylinder drive system; describe the operation of the roped hydraulic system; perform an elevator drive system inspection, state common problems, and the associated correct actions. Course 4: Describe possible hazards (including pinch points and falls) associated with working on elevator doors and elevators; explain safety procedures to protect against hazards including barricading the elevator entrances for customers; explain the proper operation and different configurations of elevator doors using proper terminology; identify and locate major elevator door components; state the maintenance (including adjustments), inspections and documentation procedures per code; and list the repair, replacement and troubleshooting procedures for various major components of elevator doors. Course 5: Describe safety precautions and specific practice for maintenance of traction and MRL elevators; explain the basic principles of operation (including various drive systems) and methods of stopping and holding traction and MRL elevators; identify different methods of starting, reversing, braking, stopping and controlling speed with various types of control systems; describe how to test an elevator control system; explain the method of interfacing between the elevator car and selector. Clarify the purpose of the traveling cable and how it secured; describe the common areas and major components in the hoistway requiring inspection and maintenance (including lubrication); explain roping construction, rope data tag, roping handling and safety procedures, proper techniques to maintain sheave ropes, and proper termination of wire ropes; evaluate the roped hydraulic system; and state general and organizational maintenance practices and specific requirements for electric traction and MRL elevators. Course 6: Describe communications techniques, safety precautions, and specific practices for performing hydraulic elevator maintenance (including pit); state the functions of the major components of hydraulic elevators, the operational controls, drive systems, safety devices, type of selector controllers, door controllers, types of hydraulic cylinders, and pistons, and properties of hydraulic fluids and the effects of those properties on hydraulic elevators; explain the basic principles of life jacket operation; and list the common area major components in the hoistway of hydraulic elevators requiring inspection and maintenance (including lubrication). Course 7: Identify basic safety strategies (including use of scaffolding) when working on elevators; list and describe the inspections, housekeeping, and maintenance protocols for major components, safety devices, and subsystems including lighting systems, heating systems, emergency systems (including Fire Service, rescuvator, escape hatch), ventilation systems (including car fan) communications systems, areas in the pits (including buffers and governor), areas in the hoistways (including refuge spaces), areas in, under and on top of the elevator car, parts associated with the doors in car and landing areas; list and describe housekeeping, maintenance, and inspection requirements for all major components in the machine rooms for the following: fire extinguishers, HVAC systems, ancillary prints and books, electrical and mechanical systems, interlocking and safety systems, roping systems (including sheaves and rope grippers, also sheaves and governor in hoistway), hydraulic systems (pumps, motors, piping, rupture valve, and piping, rapture valve and life jacket components in pit area), ancillary components and subsystems on hydraulic, traction and MRL transit elevators; describe the basics of the inspection and maintenance practices of major components in remote monitoring and communication systems (cameras, phones, etc.) in transit elevators; and list the steps in testing and applying proper maintenance procedures per the code mandated standards for transit elevators. Course 8: Use proper terminology to identify and describe the locations and functionality of major components, subsystems, and safety systems and devices, operational control and drive systems, using the code standards and applicable industry inspections, maintenance, and housekeeping requirements for the rack and pinion elevators dumbwaiters, wheel chair lifts, material lifts and inclined elevators. Course 9: Describe communications techniques, safety precautions, and specific practices associated with entrapment scenarios and three code requirements for evacuation procedures.
Course 1 – 9: 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 – 9: In the associate degree/certificate category, 16 semester hours in Elevator Repair, Elevator Maintenance, and Mechanical Systems (8/17). Note: All nine courses must be completed to gain access to the credit recommendation.