# Step-by-Step Solution ## 1. **Understanding the Question** The question asks: *If a machine will not have access to lubrication after installation (i.e., it cannot be re-lubricated easily), which component should you install to ensure continued lubrication?* The options are: 1. Electronics compression cups 2. Solid grease line 3. Centralized lubrication 4. Spring load cups --- ## 2. **Analyzing Each Option** ### 1. **Electronics Compression Cups** - Not a standard lubrication component. - May not exist as an industry term. - Unlikely to be the correct choice. ### 2. **Solid Grease Line** - Typically, "solid grease" refers to a lubrication method where a bearing is pre-packed with solidified lubricant. - "Solid grease line" might mean a bearing or component pre-filled with solid grease, which does not require re-lubrication. - Suitable for locations where re-lubrication is impossible. ### 3. **Centralized Lubrication** - A system that delivers lubricant to multiple parts from a central reservoir. - Requires access for refilling and maintenance. - Not suitable if there is no access after installation. ### 4. **Spring Load Cups** - Spring-loaded cups provide lubricant by pressure, but typically require periodic refilling. - Not ideal if access is impossible. --- ## 3. **Selecting the Best Option** - **Solid grease** systems are specifically designed for applications where post-installation lubrication is impossible. - Such systems seal the lubricant inside and release it slowly over time, requiring no further intervention. --- ## 4. **Final Answer** **Correct Option:** **2. Solid grease line** **Explanation:** When there will be no access to lubrication after machine installation, a _solid grease line_ (or solid grease bearing) is used. This ensures the component is lubricated for its entire service life without need for further maintenance. --- ## 5. **Summary Table** | Option | Suitable for No-Access? | Notes | |-------------------------------|-------------------------|-------------------------------------| | Electronics compression cups | No | Not a standard component | | Solid grease line | **Yes** | Designed for zero-maintenance use | | Centralized lubrication | No | Requires access for refilling | | Spring load cups | No | Needs periodic refilling | --- ## 6. **Final Answer Statement** > **When there is no access to lubrication after installation of a machine, you need to install a _solid grease line_ (Option 2).**