What maintenance does this drill require?

The tool requires minimal maintenance and is designed to run for an extended period with proper care. Blow dirt and dust from all ventilation ducts with dry air at least once per week using ANSI Z87.1 approved eye protection. Never use solvents or abrasive chemicals on non-metal parts; only use a cloth dampened with water and mild soap, and never allow liquids to enter the tool. (Page 11)