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1, crane maintenance - oil, water, air
Diesel, petrol and air supply is less than or interrupt,that can appear starting difficulties, poor combustion, power down, the phenomenon such as crane motor will not operate properly. If the oil is in short supply or interrupt, this can make the engine bad lubrication, heavily damaged the body and even tile burning phenomenon.Insufficient cooling water can make the engine temperature is too high, power down, wear, reduce the service life.

2, crane maintenance, inspection:check fastening parts
For diesel and gasoline engines in use process affected by vibration and impact load such as uneven, bolt, nut loose easily. And each part adjustment bolt need to check, so as not to cause damage to the body of the accident due to loose.

3, crane maintenance - net: oil net, net, net gas and water body's net
Diesel and gasoline is Lord of the crane engine fuel.Diesel, petrol is not pure, can make the precision of the body wear, fit clearance increases, causing the oil, oil, oil pressure is reduced, clearance, and even cause oil plug, holding shaft tile burning and other serious fault. If the air contains a lot of dust, this will accelerate the cylinder liner, piston and piston ring wear and tear. If the cooling water is not pure, that can make the cooling system scale blockage, interfere with the crane engine cooling and lubrication condition is bad, the body badly worn. If the body appearance not net, can make the surface from corrosion, shorten service life.

4, crane maintenance - use:crane engine used correctly
Before driving, we should make each bearing lubrication part such as lubrication. After starting we should stay the water temperature of 40 ℃ to 50 ℃ when put into operation. It is forbidden to overload for a long time or low speed operation.

5, crane maintenance - running-in
Which is the basis of prolong service life, whether it is new or repaired engine, we must be in accordance with the procedures to get up to speed, then the crane can be put into normal operation.

6, crane maintenance -adjustment
Diesel or gasoline engine valve clearance, distribution phase, fuel delivery advance, injection pressure, and ignition timing and so on should be timely check and adjust.All are in order to make sure the crane engine often in good technical condition, in order to save fuel, prolong service life.