1. During maintenance, the disassembled parts should ensure accurate reset.
2, maintenance work must ensure that all mechanical stop.
3, small screws, small work pieces and other small objects to ensure that not lost, not damaged.
4. The problems found during maintenance should be recorded regardless of their size.
5, don't change the maintenance personnel at will.
Before starting the cleaning ship, check the important parts of the ship to ensure that there is no deformation, cracking, leakage, sufficient lubrication of the moving parts, sufficient cooling water in the diesel engine, no noise and normal vibration of the engine. Repair problems immediately to prevent them from worsening. Usually also pay attention to the ship's condition, regular anti-corrosion paint and lubrication of moving parts. Before painting, clean up the hull and remove rust, oxide and oil stains on the surface of the ship. An annual inspection is carried out to replace corroded parts and check the working condition of the diesel engine. If the vessel is to be out of service for a period of time, the vessel should be pulled ashore, inspected for rust damage, painted for maintenance, and sealed.