When performing a load test on a vacuum lifter, what percentage of the rated maximum load of the system should not be exceeded unless recommended otherwise?

When performing a load test on a vacuum lifter, it is essential to adhere to safety guidelines to ensure that the system operates effectively and safely. Generally, load tests are conducted to verify that the vacuum lifter can handle its rated maximum load under controlled conditions without risking equipment failure or safety hazards.

The correct percentage for a load test is 125% of the rated maximum load. This means that the lifter is tested at a load that is 25% greater than its rated capacity. This approach provides a safety margin that allows for any uncertainties in the system's performance, such as wear and tear or slight inaccuracies in load capacity ratings. By conducting the test at this higher load, operators can confidently ensure that the vacuum lifter is functioning well within safe operational limits for its rated capacity. Meeting or exceeding this threshold allows for the identification of potential issues before they become problematic during actual operation.

In contrast, testing at 100%, while safe, does not provide the same level of assurance about the lifter's performance under real-world conditions. Higher percentages, such as 150% and 200%, exceed safe operational standards and introduce unnecessary risk, including potential equipment damage and safety hazards for operators and surroundings. Therefore, adhering to the 125% testing