Prior to installation, the electric chain hoist must remain unpowered for the purpose of test runs, and the newly installed unit must be unloaded initially for such testing.
Prior to utilizing the electric chain hoist, it is imperative to conduct an overload test. The procedures and steps for this are outlined below:
1.During the static load test, raise the weight exceeding 25% of the rated lifting capacity precisely 10cm above the ground and maintain this position for 10 minutes. Once completed, lower the weight and thoroughly inspect each component to ensure its integrity and good working condition.
2.During the dynamic load test, increase the weight lifted to exceed 10% of the designated lifting capacity. Proceed with lifting and moving the weight multiple times, followed by gently setting it down. Thoroughly inspect the mechanical transmission components and electrical systems to ensure their functionality remains unimpaired.
3.Only when the static and dynamic load tests are successfully qualified can it be deemed suitable for use.
The utilization environment of the electric chain hoist must adhere to all pertinent technical specifications. Additionally, standard electric chain hoists should not be operated in environments that are flammable, explosive, corrosive, excessively humid, or excessively hot.
The electric chain hoist is strictly prohibited from exceeding its load capacity, and its usage for oblique lifting or dragging of heavy objects is categorically forbidden.
The height limiter on the electric chain hoist serves as a crucial safety mechanism, ensuring that the hook’s lifting does not surpass the predetermined limit. Consequently, it is imperative not to utilize the limit switch as a substitute for regular operational functions.
In the event that the electric chain hoist ceases to function, the heavy object must be safely lowered, and it is strictly prohibited to leave the object suspended in the air.
Once the operation of the electric chain hoist has been successfully completed, it is imperative to disconnect the power supply.
