Overhead crane long travel faults
Channel: Practical Maintenance
Date: 2023-07-12

Some faults you may encounter working on overhead cranes. 

These are faults I have experienced in my working career and may be useful as a guide in helping you diagnose the root cause of issues with your crane long travels. This is not exhaustive and other issues may be at play.

To save you watching the entire video here is a list of some causes of crane problems

SKEWING,

1, Drive wheels are different diameters. You are allowed 0.001" of difference per inch of diameter up to 10" so a maximum of 0.010"

2, Bolts connecting drive shaft couplings not connected, loose, sheared or elongated allowing 1 side to drive before the other

3, Keyways an/or keys connecting shafts to couplings/gears worn causing the same effect as in 2

bonus 

Excessive float due to worn wheel flanges causing wheels to rub against drive pinions or body of crane causing wear to gears, crane structure and component failure to overloading.