When rigging a motor into the overhead, which type of rigging is used to prevent it from spinning?

In the context of rigging a motor overhead, preventing rotation during the lifting process is crucial for ensuring stability and safety. The use of a hoisting jack is particularly effective in this scenario because it can securely support and stabilize the load, allowing for controlled lifting and positioning.

A hoisting jack typically provides a firm point of connection and can also be adjusted to maintain proper balance as the motor is hoisted. This capability minimizes the risk of the motor spinning while being lifted, as it can stabilize the load across various axes. Furthermore, hoisting jacks can be used to support the load temporarily, enabling other rigging components to be adjusted without letting the load become unstable.

In contrast, while the other options, such as a cable sling or chain hoist, are useful for lifting and holding loads, they do not inherently prevent rotation unless combined with additional equipment or specific rigging techniques. A telescopic crane, primarily used for lifting and positioning heavy loads at significant heights, also lacks inherent mechanisms to control spinning and serves a different function in lifting operations.