Programmed maintenance means that a scheduled shut down will need to be planned for all cooling equipment once every three months for approximately 4 hours and one every six months for 8 hours. This may vary depending on tower size and location.
This schedule has been designed to comply with the requirements of AS3666 Part 2 Operation and Maintenance. Only suitably trained personnel are authorised to carry out these works. This schedule does not cover the application of chemicals into the system for microbial control. A specialist water treatment company should be engaged to carry this out.
| Service | ||||
|---|---|---|---|---|
| Monthly | Startup | Shutdown | Semi-annually | |
| Inspect General Condition and Operation | X | X | ||
| Observe Operation of: | ||||
| Mechanical equipment-motor, fan etc | X | X | ||
| Make-up valve | X | X | ||
| Inspect and Clean as necessary: | ||||
| PVC Drift Eliminators | X | X | ||
| Collect basin | X | X | X | X |
| Fan motor exterior | X | X | ||
| Check: | ||||
| Collection water basin level | X | X | ||
| Blowdown-adjust as required | X | X | ||
| Check belt drive system for: | ||||
| Belt tension and condition | X | X | ||
| Sheave bushing fastener torque | X | X | ||
| Fan shaft bearing lubrication (every 3 months) | X | X | ||
| Check and tighten as required: | ||||
| Mechanical equipment structural bolts | X | X | X | |
| Motor anchor bolts | X | X | X | |
| Cooling tower framework structural bolts | X | X | X | |
| Fan assembly bolts | X | |||
| Inspect metal surfaces and touchup | X | |||
| Motor operation required (minimum) | 3hrs/mth | |||