Which of the following is NOT part of regular rotary swivel maintenance?

• A. Lubrication
• B. Checking for leaks
• C. Inspecting bearings
• D. Repainting the swivel housing

Answer: (D)

Regular rotary swivel maintenance focuses on keeping the swivel’s moving parts reliable and leak-free. Lubrication is essential because it reduces friction, protects seals, and extends bearing life so the swivel rotates smoothly under pressure. Checking for leaks is important to catch seal or connection failures early, preventing fluid loss or contamination and maintaining safe operation. Inspecting bearings helps identify wear or damage before it leads to vibration, misalignment, or sudden failure.

Repainting the swivel housing doesn’t affect its function or safety; it’s cosmetic and won’t address wear, leaks, or lubrication needs. That’s why repainting is not part of regular maintenance.