Maintenance and maintenance of part of the crane machinery
1. motor, reducer maintenance
Always check the temperature of the motor casing and bearing parts, the noise of the motor, and the vibration.
In the case of frequent starting, the ventilation cooling capacity is reduced due to the low speed, and the current is large, the motor temperature rise will increase quickly, so it should be noted that the motor temperature rise must not exceed the upper limit specified in the specification.
Adjust the brake as required by the motor instruction manual.
For the daily maintenance of the reducer, refer to the manufacturer's instruction manual. Always check the anchor bolts of the reducer and the connections must not be loose.
2. Lubrication of the walking device
When using for the first time, first open the reducer vent cap to ensure good ventilation to reduce internal pressure. Before working, check whether the height of the lubricating oil surface of the reducer meets the requirements. If it is lower than the normal oil level, the same type of lubricating oil should be added in time.
The bearings of the wheels of the traveling mechanism are filled with sufficient grease (calcium-based grease) during assembly. No need for daily refueling. The oil can be refilled every two months through the oil hole or the bearing cap. Disassemble, clean and replace the grease once.
3. Apply grease once a week to each open gear engagement.
Maintenance and maintenance of 3 hoisting units
Always observe the oil tank of the gearbox to check whether the oil level of the lubricating oil is within the specified range. When it is lower than the specified oil level, the lubricating oil should be replenished in time.
When the crane is not used frequently and the sealing condition and the use environment are good, the lubricating oil in the gearbox is replaced every six months. When the use environment is bad, it is changed every quarter. When it is found that there is water in the tank or there is always foam on the oil surface and it is determined that the oil has deteriorated, the oil should be changed immediately. When changing oil, the oil should be replaced strictly according to the instruction manual of the gearbox, and the oil should not be mixed.
Grease should be added once every two days in the bearing housing at both ends of the reel. The surface of the reel and the wire rope should be greased according to the situation. Grease should be replenished once a month in the rolling bearing of the fixed and movable pulley blocks.
The brake shafts of each link are filled with lubricating oil every week.
