Answer:
(1) Shutdown for more than 3 weeks:
1) Drain the condensate in the oil cooler and aftercooler;
2) If there is any fault, it should be eliminated first for future use;
3) Drain the condensate in the oil drum, oil cooler, and aftercooler.
(2) Shutdown for more than 2 months (in addition to the above procedures, the following treatment is required):
1) Seal all openings to prevent moisture from entering;
2) Wrap the safety valve and control panel with oil paper to prevent rust;
3) Replace the lubricating oil before shutdown and run for 30 minutes. After two days, drain the condensate in the oil drum and cooler;
4) Drain all cooling water.
