Wednesday, May 26, 2010

Week 6, 12th May

This morning, I followed abang Yunizar to the rotary screen area to do the circulating water rotary screen trash basket maintenance inspection. All of us came to help the cleaning.

The contractors are cleaning the primary drum screen

En. Rahimi explained to us the alignment and its function. It is about finding the rotational center of motor and positioning of the motor. The symptoms of misalignment are high discharge of temperature, vibrate or loosen of the foundation bolts and etc. The causes of misalignment are bent shaft, soft foot and etc.

To show us in the more practical way, En. Rahimi brought an old pump to workshop for alignment demonstration. Laser alignment device is used to detect the state of accuracy of the alignment

En. Rahimi demonstrate how to measure the alignment

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