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Home > solution > Tower crane hoisting mechanism Troubleshooting and Analysis

Tower crane hoisting mechanism Troubleshooting and Analysis


2011/12/1 19:12:22


No. Symptom Reason Remedy
1 Unable to push the brake fluid
 movement, not in place on the
 implementation process
1.Brakes adjusted too tight; 
2.Brake cylinder oil shortage; 
3.Catching the brake frame rust; 
4.Brake cylinder wall and piston
 clearance is too small, easily catching,
 high resistance; 
5.Wheel and brake pump piston
 clearance is too large
1.Adjusted according to
 requirements; 
2.Required filling; 
3.Remove rust to ensure
 flexibility without catching; 
4.Maintenance; 
5.Re-adjust the gap.
2 Trip next time to push the brake
 fluid is not in place, a serious
 decline in hanging load
1. Brake adjustment too loose; 
2.Hysteresis brake cylinder live Fonseca; 
3.Wheel and brake pump
 piston clearance is too small; 
4.Lack of brake fluid.
1.Check the adjustment; 
2.Examination to exclude; 
3.Check the adjustment; 
4.Check the oil.
3 Lifting mechanism operating
 vibration noise is too large
1. Brake wheel loose; 
2.Gearbox input shaft bearing
 loose, Kuang; 
3.Different shaft reducer with the
 motor shaft; 
4.Connect the brake wheel and
 column coupling pin damage; 
5.Severe brake wear
1.Check the repair; 
2.Check and replace; 
3.Check the adjustment; 
4.Check and replace; 
5.Change
4 Lifting motor temperature
 is too high
1.low gear too long or too frequent
 use of 
2.brake adjustment too tight
1.low profile to reduce
 operating time or
 frequency of use 
2.Adjust the brake
5 Lifting the transmission
 output shaft Maoyou
Too much oil 
(2) seal damage
Reduce oil 
(2) replace the seals
6 Reducer oil 1.connection fitting surface of the
 seal is poor 
2.shaft seal wear ring
Replace the seals