Recommended Practice

Training Syllabus to Instruct Bus Technicians on Fan Drive Operations, Maintenance and Troubleshooting


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

Document History
Document Number Version Publication Date Publication Related Information
APTA BTS-BMT-RP-009-16 10/06/2016 Published Current


450 amp alternator, belt drive fan system, CAN J-1939, electric fan system, fan drives, fan motor, hydraulic fan system, motor controller, oil cooler


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 fan drives. Individual operating agencies should modify these guidelines to specifically teach the coach and OEM manufacturers and modes of operation on their local equipment. The training assumes prerequisite knowledge in electrical and electronics concepts, including the basics of bus multiplex operations. 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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