Recommended Practice

Training Syllabus to Instruct Bus Technicians on Hybrid Drive Systems Operations and Maintenance


This Recommended Practice provides guidelines for establishing a standardized bus maintenance training program related to the theory of operation, aintenance and troubleshooting of bus hybrid drive transmissions and related equipment.

Document History
Document Number Version Publication Date Publication Related Information
APTA BTS-BMT-RP-007-16 10/06/2016 Published Current


AC induction motor, energy storage system (ESS), hybrid drive system, power inverter module, regenerative braking.


This Recommended Practice provides transit bus maintenance training and transit bus maintenance departments with typical information to evaluate, develop or enhance current training programs for the diagnosis, repair and maintenance of transit bus hybrid drive systems. Individual operating agencies should modify these guidelines to specifically teach the coach and transmission manufacturers and modes of operation on their local equipment. The training assumes prerequisite knowledge in several areas of engine, engine diagnostics, transmission/drivetrain, and electrical/electronics training standards through level 300.
The depth of module development should be consistent with the operating agency’s level of repair requirements as defined by the agency’s Vehicle Engineering and Maintenance Department.

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