Eight wrong practices of tractor and harvester lubrication, how many have you made?

Author:Ricdro

The working places of tractors and harvesters are often farmland with relatively harsh environment. Agricultural machinery that has been used for a period of time should be maintained and maintained as necessary to keep the equipment in good technical condition. In the operation manual of the equipment, there are generally detailed requirements for filling lubricating oil for each lubricating part, and the sealing ring needs to be replaced in time after it is worn. However, in the actual use of the survey, it is found that some drivers and maintenance personnel often ignore the above requirements. Several common mistakes are:

  1. Do you need lubrication? Add a little oil!

Due to the differences in the working methods and conditions of each part of the equipment, there are strict requirements for the refueling cycle, the amount of refueling each time and the refueling method of each lubrication point. Drivers and maintenance personnel should follow the requirements strictly Implementation, can not add a little oil at will, it is difficult to meet the lubrication requirements.

  1. It has been oiled, is it still under lubrication?

The different moving parts, working methods and ambient temperature of the equipment have different requirements for lubricants. Different types and different brands of lubricants should be added as required. Only by using lubricants that contain necessary additives and have the required physical and chemical indicators can the equipment be lubricated well. It is a bad thing to add oil without seeing the brand.

  1. Add more lubricant, no harm?

The structure type and use condition of the operating part of the equipment determine the amount of refueling. Usually, there are clear regulations and requirements in the equipment manual. The maintenance personnel should make appropriate supplements according to the operating instructions, the oil level or dipstick and the window of the equipment configuration, and excessive filling of lubricating oil will be harmful and useless.

  1. After adding lubricating oil, it dries fast!

Strictly speaking, this is a misunderstanding in conceptual understanding. Only fuel directly participates in the work. Adding lubricating oil generally refers to adding lubricating oil between the friction pairs that move with each other, filling the unevenness with it, and maintaining a certain thickness of lubricating oil film, so as to separate the two contacting surfaces of the friction pair and reduce friction The purpose of resistance and wear reduction, while also cooling the parts and sealing. These functions of refueling indirectly support the work of fuel.

1234
  1. The oil is leaking, change the sealing ring?

In hydraulic systems, most of the oil leakage failure is caused by the failure of the sealing ring. The sealing ring is used for sealing by elasticity (pressure).

After the sealing ring is installed in place, its elasticity should be able to pre-stress the contact surface when there is no oil pressure, that is, its section should have a certain degree of compression and deformation; when there is oil pressure, it will be pressed to the side of the groove by elasticity Play a sealing role. When replacing the sealing ring, the sealing ring of the same size must be selected strictly in accordance with the instruction manual, otherwise the appropriate compression degree and other requirements cannot be guaranteed. At the same time, special attention should be paid: do not use the used sealing ring, and carefully check the surface quality when using a new sealing ring. After confirming that there are no defects such as small holes, protrusions, cracks and grooves, and there is sufficient elasticity. be usable. If the oil is leaking, it will definitely be a mistake to change the sealing ring so-so.

  1. The seal ring model is good, just put it on?

When replacing the sealing ring, the open part of the hydraulic system should be cleaned strictly, and impurities and dirty oil should be prevented from being mixed into the system. When installing, it is best to use special tools to prevent sharp metal edges or even fingernails from scratching it. Never allow the sealing ring to directly pass over the threaded part of the component. In special circumstances, make a simple installation tool or use a plastic film to wrap the threaded part, and apply clean hydraulic oil of the same type to the tool or membrane. The argument of “just put it on” is essentially unacceptable.

  1. Spare seal ring, just leave it as you like?

Because the seal ring contains more additives, it is easy to age and deteriorate. Therefore, during storage, it is necessary to avoid sunlight and prevent it from being damp and heated, and also to avoid contact with acid and alkali substances. Usually, the storage period should not exceed one and a half years. They cannot be chained up and hung for storage with rope or wire. Therefore, it is impossible to put the spare seal ring casually.

  1. The oil is dirty, pour it!

In addition to the hydraulic oil that has been rancid and deteriorated, there are more hydraulic oils and lubricating oils that are still available. Only hydraulic oil mixed with metal particles can be reused after precipitation and filtration. After simple treatment, the oil with heavier pollution can be used for lubrication of rough processing equipment and rust prevention of outdoor equipment, or waste oil can be collected and turned over for reuse of waste oil, which can save energy and reduce waste. Although “one fall” saves trouble, it pollutes the environment and violates the principle of sustainable development.

In the operation manual of tractor and harvester equipment, there are generally detailed requirements for filling lubricating oil for each lubricating part, and the sealing ring needs to be replaced in time after it is worn.