What are the maintenance procedures for a single-speed, fixed electric hoist?

2022-11-17

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Single-speed fixed electric hoists have a remarkably wide range of applications. Before putting them into service, it is essential to understand the proper maintenance procedures for such equipment, as this will ensure optimal performance and longevity. If you are interested in this topic, let’s explore it together—hopefully, this information will prove helpful to those in the field.

Single-speed fixed electric hoists are widely used across various industries, which clearly demonstrates their broad range of applications. In fact, proper maintenance is essential when operating this type of single-speed fixed electric hoist. For instance, newly installed hoists or those reinstalled after disassembly and inspection should first be tested repeatedly under no-load conditions. However, the power supply must not be switched on until installation is fully completed. It is also important to note that, prior to normal operation, one should perform 125% Rated load, ground clearance 100 A static load test of approximately millimeters, 10 Check for proper operation after a few minutes. The dynamic load test involves repeatedly raising and lowering the hoist and moving it left and right under the rated load. After the test, inspect the mechanical transmission components, electrical components, and connection points of the single-speed fixed electric hoist to ensure they are functioning properly and reliably. Alternatively, do not use the equipment in unauthorized environments or when the rated load is exceeded, or when the number of rated switching operations per hour is surpassed ( 120 used during operation. In addition to these, it is also recommended that, during installation, commissioning, and maintenance, the limit devices be rigorously inspected to ensure they are flexible and reliable. When the hook is raised to its upper limit position, the distance between the hook housing and the drum housing must be greater than 50mm10t16t20t Need Greater than 120mm ). When the hook descends to the lower limit position, there shall be a safe number of wraps of wire rope on the drum, with the required number of effective safety wraps. Need In 2 Above the circle.

 Single-speed fixed electric hoist

In addition, when maintaining a single-speed, fixed electric hoist, it is essential to ensure that the two manual pushbuttons that would cause the hoist to reverse motion are never pressed simultaneously. Upon completion of the work, Need Turn off the main power switch to disconnect the power supply. Therefore, single-speed fixed electric hoists shall be operated by designated personnel who have thoroughly mastered the safety operating procedures; tilting the hoist is strictly prohibited. In addition, designated personnel shall conduct regular inspections, promptly address any faults discovered, and maintain meticulous records. When adjusting the brake slip of a single-speed fixed electric hoist, ensure that the adjustment is made under rated load conditions, with the brake slip S less than or equal to V/100 V (the distance by which the load can be smoothly increased in the next minute). The scrapping criteria for wire ropes are based on the wire rope inspection and scrapping standards as follows: CB/T5972-1986 The “Practical Code for Inspection and Scrapping of Wire Ropes Used in Lifting Machinery” shall be followed. It is recommended that sufficient lubricant be maintained during operation and that the lubricant be kept clean, free from impurities and contaminants. In particular, when applying lubricant, a stiff-bristle brush or small wooden splints must be used; direct hand application to the working wire rope is strictly prohibited. When the equipment is not in use, heavy loads must not be suspended in mid-air to prevent long-term deformation of components. During operation, if any malfunction is detected, the main power supply must be immediately disconnected.

The above article has outlined maintenance procedures for single-speed, fixed electric hoists and also recommended a reputable manufacturer in the field. If you have related needs, feel free to explore their offerings—we hope this information proves helpful.

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