Final answer:
Technician B is correct in using an OSHA-approved brake washer to clean drum brake assemblies, as it is safer and prevents the inhalation of hazardous brake dust, while Technician A's method with compressed air is not recommended.
Step-by-step explanation:
When cleaning brake assemblies, both technicians aim to remove harmful brake dust effectively and safely.
However, Technician A's method of using compressed air is not recommended as it can lead to the inhalation of brake dust, which can be hazardous. On the other hand, Technician B employs an OSHA-approved brake washer to clean drum brake assemblies, which is a safer and more recommended approach.
The use of a brake washer minimizes the risk of brake dust inhalation and is in compliance with health and safety regulations set by the Occupational Safety and Health Administration (OSHA).
Using Brake Cleaner Continue to wear proper PPE and use ventilation. Spray cleaner on parts Improper PPE and ventilation. Overspray Improper PPE and ventilation can lead to unnecessary exposure. Wear PPE and use ventilation throughout process.