During the maintenance of the grab bucket, more processes need to be paid attention to. The grab bucket is a common kind of machinery. In normal work, there may be safety hazards. Therefore, we need to pay special attention to the maintenance of the product in daily life, and we need to pay attention to it when working. Need details.
If the lifting capacity indicating device is faulty and cannot be used, the lifting capacity should be determined according to the lifting performance table, and the weight of the spreader should be within the total lifting capacity.
When hoisting, it is strictly forbidden to stand under the boom, and it is forbidden to lift heavy objects buried in the ground or cable-stayed heavy objects to avoid side loads; check carefully before work, and prohibit the use of unqualified wire ropes and lifting chains; when lifting heavy objects Do not drop the arm; when the arm must be lowered, put down the heavy object and raise it again; when the arm is lowered, the throttle should be small, and when the arm is raised, the throttle should be large; the turning action should be stable, and sudden stop is not allowed; when the hoisting weight is close to the rated lifting capacity When lifting, it is not allowed to turn in the air more than 0.5m above the ground; when the crane is lifting heavy loads, the truck crane should be maintained.
In terms of maintenance, first of all, there must be professionals, strengthen management, understand defensive measures, establish and improve emergency plans for wind and rain, and hold regular plan drills.
The second is to do a good job in the inspection and maintenance of various parts on a regular basis, and check whether the connections of important parts are fastened. The grab manufacturer pointed out that maintenance work, from daily maintenance to attention at work, is very important, not only responsible for the work but also responsible for your own safety.
Maintain The Grab Bucket
1. The grab bucket needs to be checked once a day. Especially for heavy duty grabs, they should be checked carefully. The parts that meet the scrap standard should be scrapped in time.
2. Check the fastening and wear of the wire rope; check the wear of the pulley shaft and the wear of the rim; check the fastening and damage of the bolts and nuts; check the wear of the cutting edge. It should be skewed and there should be no cracks; it should be kept in a good lubrication state.
3. When closing, the misalignment difference between the two horizontal blades and the vertical blades and the gap at the contact point of the bucket mouth shall not exceed 3mm, and the length of the larger gap shall not exceed 200mm.
4. When opening, the non-parallel difference of the bucket mouth shall not exceed 20mm.
5. After lifting, the symmetrical centerline of the bucket opening and the vertical centerline of the grab bucket should be within a vertical plane no matter when the grab bucket is opened or closed, and the deviation should not exceed 20mm.
The maintenance of the grab is very important, it can increase the service life and application cost of the grab, and ensure the normal operation of the lifting, so we must pay attention to the maintenance and maintenance of the grab in daily use.