Precautions and maintenance of excavator amphibious pontoon

   Amphibious excavators are referred to as amphibious excavators and are also called wetland excavators. The amphibious excavator is a very unique machine. It can enter areas that conventional equipment cannot enter. It is very suitable for working on river banks and wetlands, and can handle various challenging working conditions.

Amphibious excavator at work

   The traveling device of the amphibious excavator adopts a catamaran-type pontoon structure track frame and sealed box-shaped track shoes to ensure safe cruising on the water. Due to the height limit of the floating box of the amphibious excavator, construction can be carried out in water depths of no more than two meters. If the water is too deep, the amphibious excavator will float on the water and the bucket will not work.

   Amphibious excavators are divided into pontoon type and pontoon type according to different structures. The pontoon type uses the chain rails of the original vehicle to lengthen and then hang an external pontoon beside the traveling support. This type of construction is relatively low-cost but the chassis is not sealed and will be severely corroded after long-term use. Later maintenance costs a lot of money, as well as supporting wheels and chain rails. Increased wear and tear.

Amphibious excavator with external floating tank

   The substructure of the amphibious excavator has a low grounding ratio and can walk and work in shallow water areas. Due to the large volume of its buoyancy tank, it can generate great buoyancy in the water. Amphibious excavators are particularly suitable for driving and operating in soft, muddy areas, tidal flats, and swamps. They are widely and efficiently used in water conservancy projects, the dredging of rivers and lakes in urban and rural construction, and the resource development and environment of wetlands, swamps, and tidal flats. For remediation and excavation operations, this cannot be compared and replaced by general excavators.

Amphibious excavator

The main purpose:

1. Swamp land management, low-yield fields, saline-alkali land transformation, and urban diversion and water supply projects.

2. Coastal beach management and reclamation projects.

3. Well location engineering in shallow sea oil and gas fields.

4. Excavation, dredging, slope repair, embankment construction, and drainage pipeline erection during dredging.

5. Projects such as embankment construction, piling, development and cleaning of fish ponds and shrimp ponds during flood control and rescue operations.

   Maintenance of amphibious excavators mainly focuses on the hydraulic and engine parts. The engine is equivalent to the heart of the amphibious excavator. Maintaining the engine of the amphibious excavator is equivalent to ensuring the performance and service life of the amphibious excavator.

   70% of many amphibious excavator engine failures are actually caused by improper maintenance and improper operation. Here are some common sense tips for amphibious excavator engine maintenance:

1. "Maintenance instead of repair".

2. Strengthen the cleaning and maintenance of the oil filter, crankshaft ventilation device and ventilation device, and replace the filter element in time according to the instructions.

3. The oil filter should be cleaned regularly. When cleaning, check whether the oil leaks out of the float head. If so, drill a small hole next to the float to drain the oil, and then seal and weld it. Otherwise, oil will leak into the float head, and the filter will sink to the bottom of the oil pan. The deposited dirt will be sucked up and block the filter screen and oil passage.

4. Control the temperature of the engine during normal operation to prevent the radiator from "boiling". It is strictly forbidden to drive without adding cooling water.

5. Inspect and adjust the technical condition of the crankshaft and bearings promptly. Always unscrew the drain plug on the filter housing to drain out the dirt.

6. For a coarse filter with a rotating handle, the handle should be rotated frequently to remove dirt on the filter disc. To clean the filter, you should disassemble it and wash it thoroughly. Some fine filter elements need to be replaced regularly. If the centrifugal fine filter is working properly, when the engine rotates at low speed, the hum of the rotor can be heard next to it. If you can't hear it, it means that the rotor has been stuck. The main reason is that there is too much dirt and it should be cleaned thoroughly.

7. The air filter is clogged. The engine's air intake system mainly consists of two parts: the air filter and the intake duct. According to different usage conditions, the air filter element must be cleaned regularly. The methods that can be used include high-pressure air blowing from the inside out to blow out the dust in the filter element. Since the air filter element is made of paper, be careful not to make the air pressure too high when blowing to avoid damaging the filter element.

8. Rust and scaling of the engine water tank are the most common problems. Rust and scale will restrict the flow of coolant in the cooling system, reduce the heat dissipation effect, cause the engine to overheat, and even cause engine damage. The oxidation of the coolant will also form acidic substances, which will corrode the metal parts in the water tank, causing damage and leakage of the water tank. Regularly use a powerful and efficient water tank cleaning agent to clean the water tank to remove rust and scale. This will not only ensure the normal operation of the engine, but also extend the overall life of the water tank and engine.

References: [Tiejia Engineering Machinery Network]