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How to prevent impurities from entering the hydraulic system?

There are many precision parts in the hydraulic system of a small crawler truck. If solid impurities invade the damping holes or gaps between parts, the precision parts will be strained and the oil passage will be blocked, which will endanger the safe operation of the hydraulic system. Generally, the reasons for the intrusion of solid impurities into the hydraulic system are due to the unclean hydraulic oil; unclean refueling tools; careless refueling and repair and maintenance; desquamation of hydraulic components. It can prevent solid impurities from invading the system of tracked small transport vehicles from the following three aspects:

How to prevent impurities from entering the hydraulic system?-Rippa China

1. When cleaning small crawler trucks

The cleaning oil must use the same brand of hydraulic oil as the system used, and the oil temperature is between 45-80 degrees Celsius. Use a large flow to remove impurities from the system as much as possible. The hydraulic system should be cleaned more than three times repeatedly. After each cleaning, let it out of the system while the oil is hot. After cleaning, clean the filter, replace the new filter element, and add new oil.

2. When refueling a small crawler truck

The hydraulic oil must be filtered and filled, and the oiling tools should be kept clean. It is not possible to remove the filter at the fuel tank filler port of the crawler small transport vehicle in order to increase the fueling speed. Fueling personnel should use clean gloves and work clothes to prevent solid impurities and fiber impurities from falling into the oil.
How to prevent solid impurities from entering the system

3. During maintenance of small crawler trucks

When disassembling the hydraulic oil tank filler cap, filter cap, inspection hole, hydraulic oil pipe and other parts, pay attention to avoiding dust when the system oil passage is exposed. The disassembled parts must be thoroughly cleaned before opening. For example, when removing the hydraulic oil tank filler cap, first remove the dirt around the fuel tank cap, unscrew the fuel tank cap, remove the debris remaining in the joint (not flush with water to prevent water from infiltrating the tank), and open the fuel tank cap only after cleaning. When using wiping materials and hammers, be careful to choose wiping materials that do not remove fiber impurities and special hammers with rubber attached to the striking surface.

Hydraulic components and hydraulic hoses should be carefully cleaned and assembled after drying with high-pressure air. Choose genuine filter elements with intact packaging (the inner packaging is damaged, although the filter element is intact, it may be unclean). Clean the filter of the small crawler truck at the same time when changing the oil. Before installing the filter element, use the wiping material to carefully clean the dirt on the bottom of the filter housing. We must pay more attention to the maintenance and maintenance of the hydraulic system of the crawler small transport vehicle.

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