Final answer:
An instrument should be lubricated regularly unless otherwise directed by the manufacturer to reduce friction and ensure smooth operation.
Step-by-step explanation:
Unless otherwise directed by the manufacturer, an instrument should be lubricated regularly.
Lubrication helps to reduce friction between moving parts, preventing wear and tear and ensuring smooth operation.
By lubricating an instrument regularly, it can improve its performance, extend its lifespan, and minimize the need for repairs.