Wheel loader uses to "journey" in order to improve work efficiency

One: start pounding oil

Wheel loader engine startup, low body temperature, oil viscosity, fluidity, and within a short time the oil cannot flow to the lubrication points. Pounding the throttle at this time, can lead to transient increase of engine speed, oil pump and pressure will also increase the amount of oil, but the moment cannot meet the requirements of each pair of lubricants and hydraulic, motion cannot establish a good lubricant film, instant dry, causing severe wear and tear. The joint lubrication, run resistance will also increase if pounding the throttle piston, connecting rod and crankshaft will have a dramatic impact, accelerating mechanical damage. In addition, equipped with a turbocharged diesel engine, extremely easy to damage due to poor lubrication oil seals, causes turbocharger failure, reduced engine power. Therefore, the Wheel loader starts, smooth low-speed (about 500~700 r/min) operation, detonation gas is prohibited.

Second commandment: start not heating machine

Because of its low body temperature, oil viscosity, oil pump fuel starvation, leading to motion for a short time are not good lubrication and wear. Big load, even cylinder holding w and other accidents will happen. In winter, the hydraulic hoses brittleness, direct job easy apart, will make the massive leak of hydraulic oil. Therefore, the Wheel loader starts, idling to heat up, and commissioning bodies, oil temperature and oil pressure reaches normal, before they can work.

Three ring: job filling water

Insufficient cooling will lead to water shortage for diesel engine from overheating. Diesel direct supplementary cooling water under high temperature, temperature difference between the moment of the entire cooling system will have a great, moments such as cylinder head, cylinder liner, cylinder cracking, crack, gradually cooling water leakage, resulting in oil spills, leakage. Therefore, when the engine temperature is too high, should be based on a high speed no-load operation, when water temperatures drop to 50 ℃, flame, heat cover screw loose, exhaust steam, by injecting cooling water.

Four: long-idle

Special field operations during the winter, the cold weather and difficult to start, many drivers are accustomed to articulated wheel loader does not work let it idle for a long time. Long time idle oil pump will pump the oil shortage, low oil pressure, the motion needs lubrication oil and fuel pressure not to require, friction increases wear, especially piston, cylinder liner wear, blowby caused; sometimes lead to valve and piston ring sticking. In addition, the poor idling diesel spray for a long time, incomplete combustion can cause delay extension of Coke seriously, roughness. Therefore, Wheel loader long idle, idle time is generally about 10 min.

The five precepts: difficulty in starting the fire warm

Wheel loader not started, some drivers use an open flame under air intake or air inlet manifold with a air pump pipe interface, start the engine, forcing combustion diesel engine. This practice will not only make the air cleaner burning, and can lead to ignition timing, engine ahead or lag conflagration, roughness, cylinder liners, Pistons, connecting rods and other mechanical parts subject to severe impact force, damaged parts. Therefore, starting difficulty igniting the car is strictly prohibited.

Quit six: down with load or job immediately after shut down

After Wheel loader shutdown with load or job immediately shut down, cooling system, then stop working, cooling capacity dramatically. Heat accumulating in the vicinity of heat sources cannot be produced timely dissemination, cylinder head, cylinder liner, cylinder heated components such as cooling water boiling, mechanical overheating temperature ablation. Also attached to the surface of oil deterioration, resulting in difficulty in starting the next time. In addition, the diesel engine with a turbocharger, if suddenly shut down, turbocharger heat up to 600 degrees Celsius or so, cause damage to the sealing ring. Therefore, the Wheel loaders should be dismounted in front of the stall load and no-load running 3~5 min, reducing temperature to 40 ℃, the temperature dropped to 50 degrees below, before stopping.

Seven quit: downtime before pounding the throttle

Many drivers mistakenly believe that downtime before pounding a few feet on the accelerator, keeping excess unburned diesel fuel in the cylinder in order to facilitate the next time you start. In fact this will cause incomplete combustion, belching black smoke and carbon increase; while pounding a few foot pedal will abruptly increase the motion of inertial force, motion wear then unburnt fuel to flow down the cylinder wall oil pan oil dilution and shorten oil life-cycle. Therefore, the correct action is, down after low-speed smooth running under no load.

Journey: glide into the shifting process shovel

Wheel loader jobs, many drivers used to shifting with the inertia of the machine speed to dash, natural reducer, gear scraper material immediately. Rushed to stock pile of inertia will make the machine have a dramatic impact, force the parts, do great harm to the entire body. This will cause the bucket and boom, the former frame deformation, cracks; suddenly force transmission, clutch, the torque increases, friction plate slip and distorted; the transmission parts are easily damaged. Correct operation is that the Wheel loader before loading place the shift lever in low gear, II gear speed is positive towards the stock pile, I blocked the slow inserts stock pile, and stepped on the gas for loading.