How should lubrication be handled to avoid contamination?

• A. Use clean lubricants with proper handling to avoid contamination.
• B. Use any lubricant with no regard to contamination.
• C. Contamination is acceptable if lubricants are synthetic.
• D. Contamination improves lubricity.

Answer: (A)

Keeping lubrication clean and free from contaminants is essential because even small amounts of dirt, moisture, or particles can penetrate the lubricant film, causing increased wear, filter clogs, corrosion, and reduced performance. The best practice is to use clean lubricants and handle them properly: store lubricants in sealed, clean containers; use clean tools and application equipment; keep the work area free of dust and moisture; avoid cross-contamination by not reusing containers or tools that touched other substances; inspect for contamination before use and wipe lids and caps before reopening. Preventing contamination lets the lubricant maintain its designed viscosity and film strength, protecting bearings, gears, and other moving parts. Contaminating lubrication—whether with dirt, water, or other substances—undermines reliability, regardless of lubricant type.