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Repair method and replacement condition of hydraulic connecting pipe of forklift

Date: 2022-06-13 View:

Repair method and replacement condition of hydraulic connecting pipe of forklift

The accessories of the hydraulic system of the forklift connect the oil pipe and the corresponding parts through threaded joints, union nuts and bolts. The oil pipe is divided into two types: rubber hose and seamless steel pipe. The oil pipe of the forklift is most likely to fall off or be damaged, and the oil pipe joint and the bending place.

1. The outer rubber of the high-pressure hose fails due to cracking and swelling. Damaged and poorly sealed ones should be replaced.

2. The rupture of the rubber hose is mostly the result of bending, twisting and poor terminal fixation. When repairing, the damaged part of the hose can be removed, and the qualified parts can be connected by detachable or non-detachable methods. The repaired hose is not There should be oil leakage.

3. There should be no cracks at the end of the compression ring and the conduit.

4. When there is irreparable damage to the steel pipe, it should be replaced. If there are local cracks, it can be repaired by welding, or the damaged part can be sawed off, and then a new section of steel pipe can be welded.

5. Aluminum or copper gaskets should be installed between the pipe joints of forklift accessories, and the gaskets should be flat and should not have depressions.

6. The oil pipe should be replaced if it has the following defects.

The inner and outer walls of the curved part of the pipe are serrated, the curve is irregular, the inner wall is twisted or crushed, and the corrugations are uneven;

The surface of the pipe is concave until the ratio of the difference between the diameter of the pipe and the original diameter is greater than 10%;

The ratio of the diameter difference of the bending part of the pipe to the original diameter is greater than 10%;

The minimum outer diameter of the flat curved part is less than 70% of the outer diameter of the original tube.