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Outdoor gantry crane maintenance technology in Winter

Nov 20, 2018

1. Maintenance of electric motor and reducer

* First, check the temperature of the motor casing and bearing parts, the noise of the motor, and the vibration.
* In the case of frequent starting of outdoor gantry crane, 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.
* The routine maintenance of reducer should refer to the manufacturer's instruction manual. 
* Always check the anchor bolts of the reducer and the connection must not be loose.

2. Lubrication of the walking device

* It is necessary to remember the lubrication of good ventilator in the maintenance technology of outdoor gantry crane components. If it is used, the ventilator cap of the reducer should be opened first to ensure good ventilation to reduce the 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, should add the the same type lubricating oil in time.
* The bearings of the traveling mechanism wheels are filled with sufficient grease (calcium-based grease) during assembly, no need to refuel every day. Every two months, the oil can be refilled or the bearing cap can be opened to replenish the grease. Disassemble, clean and replace the grease once a year.
* Apply grease once a week to each open gear engagement.
Single girder gantry crane
single girder gantry crane

Double girder gantry crane
double girder gantry crane