Single point grease lubricators are a good alternative for manual lubrication when?

Single point grease lubricators are particularly advantageous in situations where equipment is located in remote or difficult-to-access areas, and safety concerns are prevalent. These lubricators automate the lubrication process, reducing the need for personnel to physically access hard-to-reach machinery, which can pose safety risks. By enabling automatic grease application, they minimize exposure to hazardous conditions and help maintain consistent lubrication intervals, thus enhancing the reliability of machinery in environments where manual lubrication would be challenging or risky.

In contrast, while accessibility is crucial, the first option suggests that manual lubrication could still be viable, which diminishes the necessity of a single-point system. Cost considerations, as indicated in the third option, may lead to alternative solutions that do not prioritize automated systems. Lastly, the fourth option implies a lack of preferable choices, which does not capture the scenario's emphasis on improving safety and efficiency through automation.