Chapter 5 Dongfeng off-road vehicle Electrical equipment common faults and exclude automotive electrical equipment is a commonly known as automotive power, start, ignition, lighting, signal, and auxiliary electrical device. Automotive electrical equipment is mainly car safely, engine normal operation and service of the company's ride comfort. Automotive electrical equipment can generally be summarized as a power supply device, a starter device, an ignition device, a lighting signal device, a switch instrument, an indication device, and a further auxiliary device (such as scraping, heating, electric fan, and radio). 1, EQ2102 fuse box from left to right. Distribution and fault form 1) Starting insurance (10A): If the insurance is broken, the starter does not work. 2) Preheating insurance (20a): This insurance is broken, the preheating system does not work 3) Instrument power supply (10a): This insurance is broken, various instruments, exhaust brakes, sub-starters, long distance control systems Not working. 4)
Thanks to Southeast Asian customers with the trust of our company, they signed orders for the purchase of 10 EQ2082 Six wheel drive pointed off-road vehicle. At present, vehicles have begun to produce. EQ2082E6D pointed cross-country transporter is Dongfeng Company classic model, also called \"Dongfeng 240 \" \"Dongfeng 25y \", once known as \"功 臣 \" \ Heroes \". The batch is a 170 horsepower engine, with a vacuum box length of 6.3 meters, and the off-road state can carry 2.5 tons.
Common faults and rulers for the engine 1, engine start difficult failure mode exclusion method 1. Too low (<120 rpm) to check whether the battery starter line joint is secure; check the battery voltage 2, fuel pollution cleaning After the fuel system, refuel 3, the air filter blocks the air filter, clean or replace the air filter, the air row is low in the fuel system, the high pressure oil road air 5, the injection pump injection is not checked, adjusted 6, the valve clearance adjustment is improper re-adjustment 2, the engine starts short-on-fire failure mode exclusion method 1, the engine idle speed is too low inspection adjustment 2. Fuel pollution cleaning the fuel system to refuel 3. The air in the fuel system is much tightening each tubing joint, exhaust 4, fuel filter Connected cleaning or replacement 5. Oil pump does not work inspection and repair or replace 3. Engine operation instability fault mode exclusion method 1, idle low inspection adjustment 2, fuel tank inside oil surface is too low 3
The maintenance of the maintenance engine of the engine into the exhaust system, the engine provides fresh, cleaned air to ensure combustion of the engine; on the other hand, the exhaust gas generated after burning is discharged from the engine body. . The engine intake system is sealed, especially if the air filter is sealed between the engine air tubes, there is a loose, and the draft is made of dust, ore powder and other debris inhalation of the nail, forming abrasive wear, and is the early wear of the cylinder line. Main reason, it not only shortens the engine service life, but also causes deterioration of engine economics. Severe cause major accidents such as engine pull tanks, therefore, use vehicles. Regular inspection and maintenance of intake system is very If necessary, the damage to the pipe should be repaired or replaced immediately; the clamps should be re-adjusted, ensuring that the intake system has no air short circuit, leaks. The intake system is not maintained
Section 2 EQ2100E6D off-road vehicle Engine: 6BT5.9 inquiry, six-cylinder, water-cooled four stroke, exhaust gas turbine boost diesel engine. Cylinder diameter X stroke 102x120mm displacement 5.88L Rated power (2800R / min) 118kw MAX. torque (1600R / min) 559N · M minimum fuel consumption ratio (1200-1700R / min) 212 (g / kW-h ) Compression ratio 17.5 clutch: single-chip dry film spring clutch, vibration spring and friction damping tablets, 350 mm of friction sheet outside the outer diameter, a long distance manipulator, with a power, hanging pedal. Gearbox: Mechanical transmission transmission, five forward gear and a reverse, two to five gear with a lock pin inertial synchronizer, with the center distance of the slope Tensile gear center distance: 135mm. Each speed ratio is: i = 6602 = 3743ig
