What equipment is recommended for horizontally pulling a truss during installation?

Using a lever hoist for horizontally pulling a truss during installation is suitable due to its mechanical advantage and ability to exert significant force with minimal effort. Lever hoists are designed for pulling heavy loads horizontally and can be easily operated by a single person. They are equipped with a ratchet mechanism that allows for controlled lifting or pulling, ensuring that the truss can be positioned accurately and safely.

The other options don't provide the same level of control or effectiveness for horizontal pulling. A winch, while powerful, is generally more associated with vertical lifting and could require more setup and safety considerations when used horizontally. A pulley system, although useful for redirecting forces, may not be as effective for direct horizontal pulling without proper anchoring. Ratchet straps are typically used for securing loads rather than applying the tension necessary to pull heavy structures like trusses.