LG936 LG939 hydraulic pump V90N180 main pump assembly swash plate axial piston variable displacement double pump

Problems and solutions that occur during the operation of the hydraulic pump:

1. Check the pump for external wear or damage: Check the appearance of the hydraulic pump to make sure there are no obvious wear, cracks or oil leaks.
2. Check seals and connections: Check the seals and connections of the hydraulic pump to make sure none of them are loose or counting.
3. Check the hydraulic pump pipes and valves: Check the hydraulic pump pipes and valves to make sure they are not clogged or damaged.
4. Eliminate air bubbles: If abnormal bubbles appear when the hydraulic pump is running, you can try to eliminate air bubbles, such as checking the pressure in the hydraulic system, replacing seals, etc.
5. Look for other potential problems: If the above troubleshooting steps do not solve the problem, you may need to further check for other potential problems, such as electrical faults, other components of the hydraulic system, etc.

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