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叉車水溫異常應該檢查哪些地方?

來源:http://nukkadh.com/ 日期:2019-08-14 發布人:admin

  1. 檢查泵

  1. Check the pump
  冷卻系統冷卻水連續循環的動力來源是泵。泵能否產生足夠的壓力是冷卻系統能否正常運行的關鍵。當加入冷卻水時,冷卻液位隨著發動機轉速的增加而顯著降低,說明泵工作正常。反之,泵與葉輪可能松動,冷卻水不能循環。在國內叉車知識型發動機中,泵、發電機和冷卻風機共用一條皮帶,皮帶的松緊程度直接影響泵、風機和發電機的轉速。用手指按下腰帶中部,較低的撓度應正常在11-13mm(CPC3L型號)。如果它太大,水溫就會太高;如果太小,水泵軸承和發電機軸承會損壞。
  The power source of continuous cooling water circulation in cooling system is pump. Whether the pump can generate enough pressure is the key to the normal operation of the cooling system. When cooling water is added, the cooling liquid level decreases significantly with the increase of engine speed, indicating that the pump works normally. Conversely, the pump and impeller may be loose and the cooling water can not be circulated. In domestic forklift knowledge-based engines, pumps, generators and cooling fans share a belt. The belt tightness directly affects the speed of pumps, fans and generators. Press the middle part of the belt with your finger. The lower deflection should be between 11 and 13 mm (CPC3L). If it is too big, the water temperature will be too high; if it is too small, the bearing of pump and generator will be damaged.
  2. 檢查散熱器
  2. Check the radiator
  叉車百科全書的散熱器位于車輛后部。叉車底盤知識低,工廠工作環境差,散熱器表面容易堆積雜物和灰塵,如不及時清理,將嚴重影響散熱效果。日常使用后,應仔細清洗散熱器表面,避免使用高壓水槍。由于散熱器管壁很薄,如果清洗壓力過高,容易沖凹,影響循環效果。此外,嚴禁使用冷卻水“硬水”,防止散熱器內結垢,導致冷卻水添加不足。
  The radiator of forklift encyclopedia is located in the rear of the vehicle. Forklift chassis knowledge is low, factory working environment is poor, radiator surface is easy to accumulate debris and dust, if not cleaned in time, will seriously affect the heat dissipation effect. After daily use, the radiator surface should be carefully cleaned to avoid the use of high-pressure water gun. Because the wall of radiator is very thin, if the cleaning pressure is too high, it is easy to concave, which affects the circulation effect. In addition, the use of cooling water "hard water" is strictly prohibited to prevent scaling in the radiator, resulting in inadequate addition of cooling water.
濟南二手叉車
  3.檢查恒溫器
  3. Check the thermostat
  目前,發動機使用的主要溫控器是蠟溫控器。其主要性能指標是恒溫器在不同水溫下應有不同的揚程。因此,冷卻水溫度是動態控制的。對于不拆裝冷卻系統的恒溫器進行質量檢查,主要通過散熱器的進、出口管溫差來區分。在發動機冷卻機啟動時間的個周期內,進氣管和出氣管應手工有明顯的溫差,工作一段時間后,溫差明顯減小。當發動機達到正常工作溫度(80℃-90℃)時,無明顯溫度差。當然,準確的測試方法是取下溫控器,將其放入熱水中,逐漸加熱,檢查閥門開啟溫度和閥升程。
  At present, the main thermostat used in engine is wax thermostat. Its main performance index is that the thermostat should have different head under different water temperature. Therefore, the cooling water temperature is dynamically controlled. To check the quality of thermostat without disassembling and assembling cooling system, the temperature difference between inlet and outlet pipes of radiator is used to distinguish. During the first cycle of engine cooling machine start-up time, there should be obvious temperature difference between intake and outlet pipes manually. After working for a period of time, the temperature difference decreases obviously. When the engine reaches the normal working temperature (80 - 90 C), there is no obvious temperature difference. Of course, the most accurate test method is to remove the thermostat, put it into hot water, gradually heating, check the valve opening temperature and valve lift.
  4. 檢查冷卻風扇
  4. Check the cooling fan
  可以在散熱器前面放一張薄紙來測量風扇的風量。當發動機運轉時,如果紙能被吹開,那么風量就足夠了。這與前發動機吸進空氣的汽車風扇不同。葉片不能向后安裝,風機保護蓋應完整有效。
  A thin sheet of paper can be placed in front of the radiator to measure the fan flow. When the engine is running, if the paper can be blown away, then the air volume is enough. This is different from the car fan in which the front engine sucks air. Blades can not be installed backwards, fan cover should be complete and effective.

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