Who is responsible for determining the weight deduction for a stowed jib?

The correct choice indicates that the crane manufacturer is responsible for determining the weight deduction for a stowed jib. This is because the manufacturer has the most comprehensive knowledge of the crane's design, specifications, and engineering requirements. They conduct tests and have access to detailed data regarding the crane's performance, including how various components, like the jib when stowed, impact the overall weight capacity and stability of the crane.

The specifications provided by the manufacturer ensure that operators have guidance on safe load limits and configurations. This is critical for maintaining safety standards and ensuring that the crane operates within its designed limits. By following these specifications, operators can prevent overloading, which could lead to hazardous situations or equipment failure.

Understanding that the manufacturer’s role is to provide precise information allows others involved, such as operators and supervisors, to make informed decisions based on established parameters. This collaboration enhances overall safety and operational efficiency on the job site.