1. Cleverly bent copper tubing is made of hard material, so it is inconvenient to be bent and installed. It can be used to burn red with charcoal, and immediately cooled in water. It will become soft and pliable. 2. The iron filter removes the iron filter of the dirty air filter and is difficult to clean with diesel oil. If the filter element is stained with diesel oil, it can be ignited and burned. After the fire is extinguished, tapping the core with a wooden stick to make the pyrotechnics fall off can completely remove the dirt inside and outside the filter element. 3. When the elasticity of the piston ring is suspected to be insuf- ficient in the elasticity of the piston ring, a standard new ring of the same type can be used, and the old ring to be inspected is placed vertically along the circumference and the opening of both rings is in a horizontal position. Then press the two rings by hand. If the opening of the new ring does not move, the opening of the old ring has been closed, indicating that the old ring is flexible and can continue to be used. 4. The oil pump in the engine of the S195 diesel engine of the Qiao row engine oil pump, if the pump air is not drained, there will be no oil pump failure. The trick is to use a medical waste needle to fill up the oil, fill it into the pump inlet, and turn the oil pump to make the outlet out of the oil. 5. Skillfully repair the connection between the nose of the high-pressure fuel pipe of the high-pressure fuel pipe and the injector and the oil valve, and maintain the seal by the machining accuracy of the contact surface and the fastening force of the pipe nut. Once the contact surface wears oil, a round copper skin can be cut from the waste cylinder pad, with a small hole in the middle, and it can be placed between the convex head and the pit. 6. Repair the ruptured paper mat and place it on the cracks. Apply a little butter on both sides of the paper pad, and then cut two thin white papers of the same size as the paper pad, stick them on both sides of the paper pad, and put them on the machine. Tighten the nuts to eliminate leakage. 7. Cleverly managing the slow leakage of tires, take 2 tablespoons of talcum powder, pull out the valve core, and let the air in the inner tube exhaust. Insert the valve with a funnel made of hard paper and pour talc into the inner tube. When the irrigation is not in progress, the paper funnel can be removed. After the wheels are turned, they are filled until they are completely filled, and then the valve core is filled with sufficient gas. After inflated, talcum powder is dispersed in the fetus and diffusely attached to the inner wall of the femur, which can stop tiny air holes from spreading. 8. In addition to the scale, two large peeled, seeded old loofahs are cleaned and placed in a water tank, which can be replaced regularly. 9. Cleverly dismantled and decelerated gear outer elastic retaining ring Dongfeng -12 type hand dragged the outer elastic retaining ring of the reduction gear inside the gearbox, which was very difficult to disassemble. At this time with a wire, one end through the small hole in the ring after the tightening, the other end with a screwdriver wound, tightly pull, and then rotate the drive wheel back and forth a few times, the ring can be removed. 10. It is not easy to remove dirt and dirt from the dirty rotor oil filter in the fine filter. If a layer of paper is applied to the inner wall of the rotor with butter, and the soil is attached to the paper, the paper can be removed and the soil can be completely removed.