The battery is an important part of the electrical system on the tractor. There are often some problems in use. The prevention and control methods are as follows: 1. The pole pile is ablated and fractured. More often caused by improper use and maintenance. When the pole pile is ablated and broken off, it can be repaired with a wire method. First cut the damaged pole pile from the root, drill a hole with a diameter of 5 mm and a depth of 15 mm in the center of its section, and screw in a M630 mm hexagon bolt. Put the trumpet tube made of iron sheet on the pole pile, pour the lead water heated and melted, and then remove the flare tube after cooling. 2. Shell, cover cracks. Due to the fact that the outer cover of the winter and the upper cover are brittle, they are not fixed firmly or are collided during disassembly. Cracked adhesives can be used to crack cracks. The method is: first local heating cracks, to be soft after cutting with a knife edge into a "V"-shaped ditch. Then put the resin with a good clay into the repair, after coating with a paper paste, on the room can be self-hardened. If there is a serious crack, use a new shell and cover. 3. Plate short circuit. Mostly caused by broken partitions or too much bottom deposits. If there are too many deposits, the electrolyte should be poured out, washed repeatedly with distilled water and then charged. If the separator is damaged, the battery should be disassembled and the separator replaced. 4. The single compartment covers "sagging". Multi-caused due to a short circuit in the bottom of the cell plate group. When the disease was discovered. The grid electrode group should be promptly repaired. 5. The sealant cracked. More often caused by improper use and maintenance in winter. If the crack is small, it can be hot with a hot iron. If the crack is large and the leakage of electrolyte is serious, it shall be removed and refilled. In order to ensure reliable bonding of the sealing material with the shell, the casting site should be scrubbed with acid to remove the acid. 6. The active substance falls off. More often than not, the charging current is too high, the temperature is too high, or the amplifying electric current is large and the starting time is too long. If the amount of active material is not sufficient, the precipitate can be removed and used again. If there is a large amount of active material shedding, the plates must be replaced. 7, plate vulcanization. Due to the long-term discharge or half-discharge state, a large amount of electricity is generated, resulting in a coarse-grained copper sulfate on the plate. If the vulcanization is not serious, a small current can be charged for a long time to recover the active substance. If the vulcanization is severe, it can be repaired with alkaline water. 8. The battery discharges itself. The battery that was charged for a long time was not used for a long time. It gradually lost its power, the wire was short-circuited, the separator was damaged, the active material of the electrode plate fell too much, and the electrolyte overflowed too much. Prevention method: self-discharge severe battery, it can be fully discharged or over-discharge, so that the board's impurities into the electrolyte, the electrolyte will be poured out, cleaned with distilled water, and finally poured into the new electrolyte, charging You can. At ordinary times, attention should be paid to keeping the surface of the battery and the pile head clean. When water is added during use, distilled water must be added.