Moving gear plays an important part in normal operating of crane, some basic lubrication steps shall be taken to keep it in normal working condition.

Open reducer vent cap as using the moving gear at the first time to ensure good ventilation and reduce internal pressure. Check whether height of reducer lubricating oil level reaches the demand before work, if it is lower than the normal level; add lubricating oil with same type immediately.

Bearings of all wheels of travelling mechanism have been filled into enough lubricating grease (calcium base grease) in the assembly; daily refuel is unnecessary, supplement lubricating grease once by oil filler hole or opening bearing cap every two months, remove, clean and replace lubricating grease one time every one year, apply lubricating grease one time every week at meshing parts of all open gears.