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How to maintain diesel engine water pump unit?

How to maintain diesel engine water pump unit?

The correct maintenance of the diesel engine water pump, especially preventive maintenance, is the easiest and most economical maintenance, so it is the key to extending the service life and reducing the cost of use. Routine maintenance can be carried out according to the following steps to check the amount of fuel in the fuel tank—observe the amount of fuel in the fuel tank and refill it as needed.

  1. Check the oil level in the oil pan: observe whether the oil level reaches the marking mark on the oil scale. If it is insufficient, add to the specified amount, but not exceed the upper limit of the scale mark.
  2. Check the oil level of the fuel injection pump governor: if it does not reach the specified engraved mark, add enough oil (some fuel injection pump governors do not have a scale, so this step can be omitted).
  3. Check whether there is sufficient lubricating grease in the oil filling point of the water pump: Remove the grease nipple on the circulating water pump of the diesel engine and observe whether the lubricating grease inside is sufficient. If it is insufficient, use a grease gun to inject sufficient lubricating grease into it.
  4. Check whether the water in the water tank is sufficient: If the water in the water tank is found to be insufficient, replenish it in time. The added water should be clean fresh water, such as tap water or clean river water. If the groundwater is used directly, it is easy to form scale in the water tank, which will affect the cooling effect and cause failure. Therefore, the groundwater can be used after it is softened. In the north (the ambient temperature is below zero), an antifreeze with an appropriate freezing point must be configured according to the local minimum temperature.
  5. Check the drive connection plate of the fuel injection pump: check whether the connection screw is loose. If it is loose, re-correct the fuel injection advance angle and tighten the connection screw.
  6. Clean the exterior of the diesel engine and ancillary equipment: wipe off the oil, water and dust on the surface of the fuselage, turbocharger, cylinder head cover, air filter, etc. with a dry cloth or a rag soaked in diesel; wipe or use The compressed air blows away the dust on the surface of the charging generator, radiator, fan, etc.

The following points should be paid attention to in the maintenance of diesel engine water pump unit:

  1. Pay attention to the insulation of the diesel engine and water pump in the cold season to prevent the equipment from being damaged by freezing due to low water temperature. The room temperature should be kept above 5°C.
  2. Before using the battery for the first time, charge it after adding enough battery fluid.
  3. Check the voltage of the diesel engine starting battery every day.
  4. After running for a period of time, check the muffler and exhaust pipe to remove carbon deposits and prevent sparks.
  5. After running for a period of time, check whether the packing seal of the water pump is worn or not, and replace it if necessary. Check whether the grease of the water pump is depleted.
  6. The straightness of the unit should be checked regularly, because the foundation sinking, aging, bearing wear, thermal deformation, and changes in the structural load of the building may affect the straightness of the unit.