Orthodontic Assistant Practice Exam

Which of the following is NOT a part of regular preventative maintenance for a model trimmer?

1. Cleaning the water reservoir

2. Calibrating the blade height

3. Replacing rag wheels

4. Checking motor function

The correct answer is: Replacing rag wheels

Regular preventative maintenance for a model trimmer is essential for ensuring its optimal performance and longevity. Cleaning the water reservoir is crucial because it prevents debris buildup that can affect the trimmer's operation. Calibrating the blade height is also vital; it ensures that the blades are set at the correct height for efficient trimming and to avoid damage to the model. Checking motor function is necessary to ensure that the trimmer operates smoothly and to identify any potential issues before they escalate into more significant problems. Replacing rag wheels, while part of overall maintenance in some contexts, is not a routine preventative maintenance task specifically associated with a model trimmer. Rag wheels are typically used in polishing or finishing processes and may not require regular replacement as part of the trimmer's maintenance. Thus, identifying this as not a part of regular preventative upkeep highlights the specific needs and functions associated with maintaining the model trimmer itself.