Page 17 - Simplified Wastewater Treatment Fundamentals / Operators Working With Maintenance

Work Order and Job Site Preparation Example cont.

Tom made a timely logbook entry regarding the WAS Pump 1 failure and proceeded to the

field and did the following:

1. Tom first checked the WAS Pump 1 main breaker, seeing that the breaker was ON and

not tripped.

2. Tom proceeded to WAS Pump 1 checking to ensure the local Pump OFF/ON switch was

turned ON

3. Tom checked to ensure the WAS Pump 1 valving was correct.

4. Tom contacted his Lead Operator and coordinated locking out WAS Pump 1.

5. Once locked out, Tom attempted to turn WAS Pump 1 shaft.

(WAS Pump 1 is a centrifugal pump, so the shaft should turn easily but, in this case, did

not)

6. Tom removed the pump inspection plate finding a ball of rags and removed them.

7. Tom replaced the inspection plate, removed the system locks and tested the pump.