Please check this maintenance manual for the dredger.

Please check this maintenance manual for the dredger.

Continuous rainy weather not only affects the construction progress, but also

The equipment performance, operational safety and... of cutter suction dredgers

Maintenance and upkeep pose special challenges. As a dredging business

How to ensure the important equipment of the industry in bad weather

The cutter suction dredger operates safely and efficiently, and at the same time, it is necessary to do a good job

Equipment maintenance work? This article will provide you with a detailed analysis.

When starting a dredger, the following steps should be followed:

After starting the diesel engine, run it at the lowest no-load speed for 5 minutes to warm it up.

2. Check the indicated values of the oil pressure, oil temperature, cooling water temperature, exhaust temperature, hydraulic system oil pressure and other instruments to ensure they are within the normal range.

3. Only when the cooling water temperature of the diesel engine rises to 45-50℃ can the speed be gradually increased until it reaches the rated speed.

Abnormal weather response strategies and strong wind response measures:

According to the regulations, in case of winds of force 5 or above, the machine should be temporarily shut down and the following measures should be taken:

Listen to the weather information in advance. When strong winds affect safety, make preparations in advance.

2. Take effective measures to prevent wind and waves. If necessary, activate the emergency response plan and evacuate to a sheltered area to avoid the wind.

3. Reinforce the anchor cables to prevent the ship from drifting.

4. Lift the positioning pile and insert the safety pin. Loosen the positioning pile lifting steel wire rope appropriately.

Key points for daily maintenance in rainy and cloudy weather:

On rainy and cloudy days, the humidity in the air is high, which makes it easier for equipment to rust and get damaged. The following maintenance work should be strengthened

Lubrication and rust prevention: In rainy days, the humidity is high, and mechanical parts are more prone to rust. Therefore, the frequency of lubrication needs to be increased, especially for key parts such as the transmission system and bearings.

Electrical protection: The electrical system is prone to moisture. It is necessary to frequently check the sealing conditions of electrical equipment and junction boxes to prevent water ingress and short circuits.

Bolt tightening: Changes in humidity can easily cause the connecting parts to loosen. It is necessary to frequently check the bolts at all parts.

Key point inspection of equipment

Carefully check whether the connections of the water and land sludge discharge pipes are reliable and firm.

2. Check the fastening conditions of all parts of the entire vessel, especially the chain screws, pins and all fixed points of the transmission system, to ensure there is no looseness.

3. Check the hydraulic system to ensure there is sufficient hydraulic oil and no leakage in the hydraulic pipelines.

4. Fully lubricate the moving parts of the machinery by adding grease and lubricating oil.

In continuous rainy and gloomy weather, a comprehensive safety inspection must be carried out before operating a cutter suction dredger

Ensure that all fire-fighting and life-saving equipment on board is complete and in good condition, including life jackets, life buoys, fire extinguishers, etc.

2. Check whether there is any seepage in the hull and whether there is any leakage in each compartment.

3. Confirm that the guardrails around the work platform and the upper platform are intact, and that the walking plank is firmly erected and equipped with anti-slip strips.

4. Check whether the ship's signal lights and lighting systems are working properly to ensure that signals can be displayed normally when visibility is poor in rainy days.

I hope this article can be of help to you.