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【 Higher knowledge 】 Winter excavator seven big mistake operation _CTP caterpillar engine accessories

by:HMB     2021-01-26
Winter comes, in the cold weather, to the test of equipment will be more severe than usual. So in winter construction, excavator maintenance of misunderstanding between what? These errors maintenance habits will bring what harm to shovel? Mistake, water early or not to put the cooling water can cause serious consequences: the engine body burst or snap-back, appear crack. The right approach: before stall in idle running, with cooling water temperature dropped to below 60 ℃, water is not hot, remove water again. If early to put off the cooling water, the body in the cold air suddenly hit the higher temperature will produce snap-back, appear crack. Residual water in the water when the body should be thoroughly, in order to avoid the freezing expansion, to make the body burst. Mistake, just choose two fuel oil can cause serious consequences: reduce the engine life, make the damage probability the right approach: winter low temperature keep the liquidity of diesel, viscosity increases, spray powder not easily, cause atomization, combustion deterioration, resulting in a decline in the power performance and economic performance of the diesel engine. So the winter should choose and ignition performance good light diesel oil with low freezing point. General requirements, the freezing point of diesel engine should be lower than the local lowest temperature 7 - the current season 10℃。 Mistake three, with flame combustion starting may cause serious consequences: or burning machine, light damage to the engine the right approach: can't take the air filter, dip in with cotton on diesel light, made into kindling in inlet pipe for combustion. So that in the process of start, outside dust will directly without filtering inhaled air cylinders, causing the abnormal wear of the piston and cylinder parts, also can cause rough diesel engine work, damage to the machine. Mistake four, use naked light baking pan can cause serious consequences: or burning machine, light has deepened the machine wear the correct approach: using flame roasting pan can make within the oil sump oil deterioration, even burning, lubrication performance degradation or complete loss, exacerbating the machine wear. Winter should choose low condensation point of the oil, startup can be closed to water bath heating method is adopted to improve the oil temperature. Mistake, improper boot method can cause serious consequences: cause serious damage to machine the right approach: thermal insulation quilt on the tank first, open the drain valve, continuous injection 60 - to the tank 70 ℃ clean soft water, touch feel hot water flowing from water drain valve, then close the drain valve and shipped 90 - to the tank 100 ℃ clean soft water, and turn the crankshaft, make each moving part properly lubricated beforehand, and then start again. Six, low load operation mistake can cause serious consequences: machine caused by serious wear the correct approach: was burning diesel engine start, some drivers can't wait to immediately load operation. Diesel engine fire soon, because the body temperature is low, oil viscosity, oil is not easy to filling the motion pair of friction surface, can cause severe wear machine. In addition, the plunger spring, valve spring and injector spring because & other; Cold short & throughout; It is easy to break. Therefore, winter was burning diesel engine starting, low to medium speed idling for a few minutes, when cooling water temperature reached 60 ℃, put in load operation. Mistake, do not pay attention to the body heat preservation can cause serious consequences: reduce the working life, damage to the engine the right approach: winter low temperature, easy to make the diesel engine work excessive cooling. So the thermal insulation is the key to good winter with diesel engine. In the north, the winter use diesel engine shall be equipped with heat preservation and insulation curtains and other protective equipment. Another thermostat on diesel engine heating plays an important role at work. So before winter should check whether the thermostat work normally, the thermostat failure should be replaced in a timely manner, not easy to cause atomization combustion deterioration, spray powder, resulting in a decline in the power performance and economic performance of the diesel engine. So the winter should choose and ignition performance good light diesel oil with low freezing point. General requirements, the freezing point of diesel engine should be lower than the local lowest temperature 7 - the current season 10℃。
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