Common malfunctions and troubleshooting methods of aerial vehicles

Common malfunctions and troubleshooting methods of aerial vehicles

Fault phenomenon cause of issue Remedy
Power device vibration Drive shafts are different or unbalanced Overhaul adjustment
Loose coupling Overhaul adjustment
Not fixed Fastening
Rotary reducer overheated Lack of oil Add lubricant
Rotary reducer impact noise Incorrect mounting of gears, severe wear of gears or bearings Adjust the replacement
Rotary reducer leak Damaged seal gasket replace
Axle bad, wear Repair replacement
Too much lubricant Remove oil
Slewing ring vibration or noise Ring or pinion abnormal wear replace
Ball or pad damage replace
Lack of oil Refuel
Working arm clevis, working turret, and subframe crack or deformation Bad material or bad welding Structure strengthening
Improper use, overload and shock Correct distortion, change
Hydraulic system oil leak Loose fittings Fastening
Damaged seal replace
Broken pipe Welding replacement
Oil pressure does not rise, oil temperature is too high The fluid level of the tank is too low and the oil filter plug is blocked Refuel or check
Pressure relief valve opening pressure too low Adjust overflow valve
Pump damage or leakage is serious Repair or replace
Excessive leakage of pressure and return lines or excessive leakage of hydraulic components Repair or replacement, proper shutdown cooling
Severe hydraulic system noise There is air in the pipeline Repetitive operation exhaust
Low oil temperature Low speed conversion oil
Pipes and components not fixed and fastened Fastening
Balancing valve failure Adjustment and overhaul
Filter plug Cleaning
Falling arm, shrunk arm, excessive oil pressure or vibration Balance valve signal hole jam Cleaning balance valve
Excessive friction between arms or foreign body Inspection, adjustment, lubrication
There is air in the cylinder Repeated movement exhaust
Telescopic arm steel wire length inappropriate Adjust rope length
The top arm does not reach or shrink Outrigger lock seal is not good Overhaul
Outrigger failure Cylinder leakage Overhaul seals

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