Replacement of various fluids
(1) use of low-condensed, mobile fuel. Fuel combustion processes are prone to deterioration due to increased viscosity, poor liquidity and mistification at low temperatures, as well as a marked decline in engine start-up, motority and economy, and should therefore be selected for lower condensation points when conditions exist. The general selection principle is that the fuel coagulates at about 5°c below ambient temperature。
(2) replacement of oil. The negative effects should be compensated or eliminated by the timely replacement of less viscous engine oil, which in low-temperature conditions increases in the viscousness of the engine oil as the temperature drops and changes in mobility。
(3) replacement of various lubricants and lubricants for winter. Winter lubricant is replaced by low-tip lubricant for wheel bearings, etc。
Maintenance of engine cooling system
(1) check the work of the thermostat to ensure that the thermostat works well to prevent the engine from being too cold or too high. When engines are often operating at low temperatures, this can lead to increased wear and tear of machinery。
(2) clear the water from the water. The cleaning of engine water casings, the removal of internal glucose, the prevention of excessive accumulation of water, and the impact on the heat of the engine, such as the jamming of water switches, can lead to unpurified discharge。
(3) add anti-frozen fluid. When temperatures are too low and conditions permit, anti-freeze fluids may be used, cooling systems should be thoroughly cleaned prior to use, and better and less corrosive anti-freeze fluids should be selected to avoid the erosion of machines due to anti-freezing fluids。
Maintenance of electrical equipment
(1) check to adjust electrolyte density. The density of electrolytic fluids can be adjusted to prevent accidents in the shell of the thaw cell due to its low density。
(2) higher charge voltage of generators. Due to the increase in the discharge of low-temperature submersible batteries, the charge of generators has to be increased and the limit of the regulator's voltage can be adjusted appropriately and, in general, the limit of the winter regulator is 0. 6 v higher than in the summer。
(3) maintenance of the start-up generator. Winter engine start-up difficulties and frequent use of start-up power can further complicate engine start-up if the power of start-up is insufficient. It has been shown that, in the summer, if the starter fails slightly and the power is low, the start-up engine may be smooth, but it becomes difficult, if not impossible, to start in the winter. The starter should therefore be thoroughly maintained, and the starter departments should be kept clean and dry, especially with good contact between the brush and the switcher。
(4) improve the temperature of batteries. In order to prevent the freezing of over-cooled batteries and to affect start-up performance, an accumulators can be made in the winter to increase their temperature。
Adjustment of fuel and ignition systems
During the winter, the gas mix can be adapted to the need for low-temperature work by increasing, as appropriate, the level of oil in the petrochemicals' chambers and adjusting to speed up the oil pumps. In order to facilitate cryogenic start-ups, the end-of-wielding contact angle should be duly increased, adjusted to 0. 30-0. 40 mm to increase spark intensity。
Maintenance of preheaters
For engines with preheaters (mostly diesel), preheating equipment should be inspected and maintained before winter to ensure that it is in good technical condition. During maintenance, emphasis is placed on checking electrical and oil circuits to prevent engine start-up due to poor operation of preheating units。
