In summer, due to the influence of ambient temperature, tunnel loading opportunities are faced with many difficulties. For example, the "heart" component of the whole machine, diesel engine, decreases the viscosity of lubricating oil, lubrication and power due to the increase of temperature, and its internal parts are often prone to wear, which is a common fault. Therefore, the diesel engine should be carefully maintained when doing a good job in the maintenance technology of tunnel loader in summer.

1.為了確實小型整機的冷卻系統(tǒng)效能良好，在進入夏季以前，應(yīng)對冷卻系統(tǒng)的各個部件進行清理、緊固和潤滑，盡可能的清理冷卻系統(tǒng)水垢包括散熱器內(nèi)的水垢清理干凈），以提高散熱效能，保持冷卻系統(tǒng)暢通和加速冷卻水的循環(huán)。

1. In order to ensure that the cooling system of the small complete machine has good efficiency, all components of the cooling system shall be cleaned, fastened and lubricated before entering summer, and the scale of the cooling system (including the scale in the radiator) shall be cleaned as much as possible, so as to improve the heat dissipation efficiency, keep the cooling system unblocked and accelerate the circulation of cooling water.

2.檢查水泵一風(fēng)扇傳動皮帶，皮帶經(jīng)長期使用后，皮帶會產(chǎn)生疲勞、變形，降低冷卻效果。皮帶更換時，要注意型號和長度，并正確調(diào)整其松緊度。

2. Check the water pump fan drive belt. After long-term use, the belt will be tired and deformed, reducing the cooling effect. When replacing the belt, pay attention to the model and length, and correctly adjust its tightness.

3.檢查水箱連接膠管，水箱的膠管的耐油性比較差，容易早期損壞，從而影響供水量，引起發(fā)動機溫度升過高。檢查有破裂和漏水現(xiàn)象，要及時排除。同時要保持足量的冷卻水，發(fā)現(xiàn)不足要及時添加。

3. Check the connecting hose of the water tank. The hose of the water tank has poor oil resistance and is easy to be damaged early, which affects the water supply and causes excessive engine temperature rise. Check for cracks and water leakage, and eliminate them in time. At the same time, sufficient cooling water shall be maintained and added in time in case of deficiency.

4.整機的正確使用，要時刻注意水溫表的讀數(shù)，達到90°以上時要采取措施?？蛇x擇就近的陰涼處停車并以怠速降溫，注意不要立即熄火，以防止發(fā)動機內(nèi)部過熱而造成拉缸等事故。待溫度降下來后，還應(yīng)檢查風(fēng)扇皮帶的張力情況。

4. For the correct use of the whole machine, always pay attention to the reading of the water temperature gauge, and take measures when it reaches more than 90 °. You can choose to park in a nearby shady place and cool down at idle speed. Be careful not to turn off the engine immediately, so as to prevent cylinder pulling and other accidents caused by overheating inside the engine. After the temperature drops, check the tension of the fan belt.

5.進入夏季之前，要有針對性的對潤滑系統(tǒng)的各個部件做一次性能檢測，以使機油壓表、變速箱壓力表指示準確。對變速箱、變距器和驅(qū)動橋內(nèi)的油液進行一次系統(tǒng)的檢查，從油液的品質(zhì)到油液的數(shù)量，并要保持油液清潔。

5. Before entering the summer, targeted one-time energy detection shall be conducted for each component of the lubrication system to make the indication of the oil pressure gauge and transmission pressure gauge accurate. Carry out a systematic inspection of the oil in the transmission, distance converter and drive axle, from the quality of the oil to the quantity of the oil, and keep the oil clean.

隧道裝載機夏季維護，夏季行車中，裝載機輪胎層數(shù)多為14層左右，和大型輪胎相比傳熱較快，很容易發(fā)生輪胎過熱，使內(nèi)壓增高，促使輪胎的橡膠物理性能下降，以于引起爆胎。如發(fā)現(xiàn)輪胎氣壓、輪胎溫度過高，應(yīng)將車停在陰涼處降溫后再繼續(xù)行駛。不允許用放氣的方法來降低輪胎的氣壓，或用冷水澆發(fā)熱的輪胎.

The tunnel loader is maintained in summer. During driving in summer, the number of tire layers of the loader is mostly about 14. Compared with large tires, the heat transfer is faster, and it is easy to overheat the tires, increase the internal pressure, reduce the rubber physical properties of the tires, and even cause a tire burst. If the tire pressure and tire temperature are found to be too high, stop the vehicle in a cool place to cool down before continuing driving. It is not allowed to reduce the tire pressure by deflating, or pour hot tires with cold water