What is the correct method for installing extension lift arms on the MJ-1A/B lift truck?

The correct method for installing extension lift arms on the MJ-1A/B lift truck is to insert the ends into slots. This design allows for a secure and effective way to connect the extension arms to the lift truck. The slots are specifically engineered to accommodate the lift arms, ensuring that they are properly aligned and can bear the necessary loads while lifting munitions.

Using slots for installation provides several advantages, including easier installation and removal, as well as the ability to adjust the height as needed for different tasks. This method is essential for maintaining the operational flexibility of the lift truck, allowing users to adapt the lift arms for various jobs without permanent alterations.

In contrast, methods such as bolting or screwing would not provide the same level of functionality and adaptability, and welding the arms would create a permanent fixture that would eliminate the ability to adjust or remove the arms as required. Therefore, inserting the ends into slots is the most effective and recommended method for this task.