(1)發(fā)動機溫度過高

(1) The engine temperature is too high

如果發(fā)動機溫度過高，不僅會加速機油老化、變質(zhì)，而且還容易使機油變薄，導(dǎo)致機油壓力下降。

If the engine temperature is too high, it will not only accelerate the aging and deterioration of the oil, but also easily make the oil thinner, resulting in the decrease of oil pressure.

(2)缺乏機油

(2) Lack of oil

如果油量不足，就會減少油泵中的油量，導(dǎo)致油壓下降，加重曲軸和軸承、缸套和活塞的磨損。

If the oil quantity is insufficient, the oil quantity in the oil pump will be reduced, resulting in the decrease of oil pressure and aggravating the wear of crankshaft and bearing, cylinder liner and piston.

攪拌一體車

Mixer truck

(3)油泵停止運轉(zhuǎn)或油泵缺油

(3) The oil pump stops running or the oil pump is short of oil

油泵的驅(qū)動齒輪與傳動軸的固定銷的裂紋或配合鍵斷開，以及油泵吸油物與泵油齒輪卡住，會使油泵停止工作，油壓也降0。

If the driving gear of the oil pump is cracked or the matching key is disconnected from the fixed pin of the transmission shaft, and the oil absorbing substance of the oil pump is stuck with the oil pump gear, the oil pump will stop working and the oil pressure will drop to 0.

(4)曲軸與連桿軸承配合間隙過大

(4) The fit clearance between crankshaft and connecting rod bearing is too large

發(fā)動機長期使用后，曲軸與連桿軸承之間的配合間隙會逐漸增大，油壓也會降低。

After long-term use of the engine, the clearance between crankshaft and connecting rod bearing will gradually increase, and the oil pressure will also decrease.

(5)油過濾器堵塞

(5) Oil filter blocked

當油被過濾器堵塞而不能流動時，過濾器底部的閥被提起，油不經(jīng)過濾直接進入主油通道。如果閥的開啟壓力過高，當過濾器阻塞時，閥不能及時打開，所以油泵的壓力增加，添加內(nèi)部泄漏，和石油的供應(yīng)在主油通道，導(dǎo)致機油壓力下降。

When the oil is blocked by the filter and cannot flow, the safety valve at the bottom of the filter is lifted, and the oil directly enters the main oil channel without filtering. If the opening pressure of the safety valve is too high, when the filter is blocked, the safety valve can not be opened in time, so the pressure of the oil pump increases, adding internal leakage, and the oil supply is in the main oil channel, resulting in the decrease of oil pressure.

以上就是攪拌一體車油壓過低的原因希望對您有所幫助。

The above is the reason why the oil pressure of mixer truck is too low. I hope it can help you.