The customer had repeated problems with vibrations on a water pump drive. (The vibrations could even be felt in the office upstairs!) In order to avoid unplanned shutdowns and reduce high vibration levels, Off-Highway Powertrain Services (OHP Services) undertook a complete analysis. OHP Services identified faulty mountings, clear misalignment, looseness of some components, lack of lubrication, excessive operating temperatures and worn out parts. Therefore, to avoid such problems in the future, it was suggested that the initial assembly and commissioning should be carried out by our OHP Services experts.
Our experts carried out the commissioning for the water pump drive following proper protocol and installation standards. OHP Services made and then implemented the following recommendations to the customer:
- Installation of a newly-built intermediate shaft
- Installation of new intermediate shaft-bearing
- Installation of the main shaft
- For warranty reasons; a test run was included in commissioning protocol
- Documentation of vibration and thermographic values as a base reference of the intermediate shafts bearing
The high vibration value had been caused by a damaged intermediate bearing. After carrying out the recommendations, the vibration amplitude (RMS) was reduced by 77% to be within an acceptable level.