Experts all suggest that the air conditioner should be turned off one or two minutes before the flameout. In this way, in addition to drying the air outlet of the air conditioner and preventing bacteria from growing in the air conditioner, more importantly, if the air conditioner is not turned off, the engine will start with the load of the air conditioner when the concrete mixer starts next time. The correct way is to start the concrete mixer for two or three minutes and turn on the air conditioner after the engine is lubricated.
Therefore, if the engine is idling for a long time in traffic jams, it is better to turn off the air conditioner for a while, which can not only reduce the burden of the engine, but also effectively save fuel.
Damage to gearbox of lightweight mixer in neutral sliding
Manual drivers like to slide in neutral gear. Although there are potential safety hazards, many people are used to doing so because of fuel economy.
For the automatic stop car, sliding in neutral gear is more harmful than beneficial: the current family cars are basically EFI Engines, and the engine speed of the concrete mixer truck is above 1000 rpm. When the accelerator is released, the engine of the concrete mixer truck will automatically stop feeding oil ——If the driver's concrete mixer has a real-time fuel consumption meter, you can clearly see that the fuel consumption is zero at this time. When the automatic transmission taxis in neutral gear, due to the different driving speed and engine speed, the oil pressure in the hydraulic pipeline of the transmission is easy to be insufficient, which will increase the friction, damage the internal friction plate of the automatic transmission, and eventually lead to the failure of the transmission.
Therefore, if the car owners who are used to driving in manual gear take the previous experience to drive in automatic gear, they will be careful that the gain is not worth the loss.
Damage to mixer frame due to uneven parking space
On the side of the road, we often see half of the wheels of some concrete mixers parked on the curb. Parking in this way for a long time will lead to excessive drop of four wheels, distortion of the frame, and even influence the closing of the door. Parking on uneven ground for a long time will cause similar consequences.
Therefore, if the wheels do not return to the right position after parking, it is also very harmful to the car: it will damage the steering linkage and dust cover, and affect the steering system.
The transmission of mixer is damaged when the brake is not pressed to the bottom
If the clutch of manual transmission and concrete mixer is not pressed to the bottom, the transmission will be damaged. Will there be a similar problem with automatic blocking?
Experts say that a car with automatic transmission can push the gear into P when the brake is half pressed and the brake light is on. If the brake of the concrete mixer is not stepped down, it will be directly pushed to the P gear to stop the fire. When the road is uneven, the concrete mixer will move a little, which will impact the speed change gear.
Therefore, in the long run, it is certainly not good for vehicles.
Destroy the direction of concrete mixer
Driving to kill the direction of the problem, the reporter also has: just learn the car, moving the warehouse in a hurry, are killing the direction to dare to slowly loose the clutch, let the concrete mixer move. Experts remind that killing the steering wheel often will cause damage to the steering power pump of the concrete mixer, which will aggravate the aging of the booster pump belt after a long time, and the damage of the booster pump will also have an impact on the steering gear of the concrete mixer.