You are part of a team of Maintenance Engineers at one of a mine in South Africa, the company specialise in extracting and processing minerals. Your operations include both open-pit and underground mining. The company uses a variety of heavy equipment including haul trucks, hydraulic shovels, conveyor systems, and pumps. Recently, there have been increasing equipment failures leading to downtime and production losses. As part of your role, you are tasked with revamping the maintenance strategy to improve equipment reliability and efficiency.

After reviewing the current maintenance logs, you find that the existing strategy primarily focuses on corrective maintenance. What alternative maintenance strategies would you recommend to reduce downtime and why? Evaluate at least two strategies.