First, lubrication
The working performance and life of the various crane mechanisms depend largely on lubrication.
During lubrication, the maintenance and lubrication of mechanical and electrical products refer to their own specifications. Lubricants should be injected once a week for carts, cranes, etc. The hoisting machine is filled with industrial gear oil (SY1172-80)200. The oil level should be checked frequently and replenished promptly.
Second, wire rope
Should pay attention to the broken wire rope situation. If any broken wire, broken strand, or worn amount reaches the scrapping standard, the new rope should be replaced promptly.
Third, spreader
Spreaders must be checked regularly.
Fourth, pulley group
Mainly check the wear of the rope groove, whether the rim breaks and whether the pulley is stuck on the shaft.
Fifth, the wheel
Check the rim and tread regularly, and replace the new one when the rim portion wears or cracks to 10% of the thickness.
When the difference between the diameters of the two driving wheels on the tread exceeds D/600, or if serious scars occur on the tread, the vehicle should be renewed.
Sixth, brake
Each class should be checked once.
The brake should act accurately and the pin must not be stuck. The brake shoe should be properly fitted to the brake wheel, and the clearance of the brake shoe should be equal when the brake is released.
Seventh, reducer oil leakage causes and preventive measures
There are three common causes of oil leakage in the reducer:
1: Because of the unreasonable design of the manufacturer: In the design process, there are no special vents or design flaws such as the vent hole being too small will cause the internal and external pressure of the reducer to be uneven and cause leakage failure, and eventually lead to leakage of the reducer oil. malfunction. It is also possible that during the long-term use, the connection surface of the reducer is leaky due to leaks.
2. The limited level of processing technology results in a lack of precision in the contact surface of the box, thus causing poor sealing performance and causing oil leakage.
3. Because the operator or maintenance personnel improperly maintains during daily use, causing multiple internal blockages and the internal pressure is higher than the external pressure, at the same time, too much oil, fasteners are not tightened, etc. can cause two boxes between The lax face of the joint causes oil leakage.
In order to effectively prevent the occurrence of oil leakage in the reducer, the manufacturer should improve the technological level and optimize the design scheme: An aeration device can be added to the filler hole cover to ensure the balanced and smooth internal and external pressure. At the same time, during the design process, the precision of the process between the joint surfaces of the two boxes should be improved so as to prevent oil leakage failures due to loose contact surfaces. At the same time, maintenance work must be done during routine use. Regular inspections of vents, fuel, cabinets, and fasteners should be performed in a routine manner.
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