One of the most important maintenance in John Deere’s equipment is battery care and maintenance. You could also check john deere technical manuals pdf to guide you. Maintenance-free batteries usually do not require special maintenance. Observe the specific gravity of the liquid and the viewing hole shows green, indicates sufficient charge, gray, insufficient battery, and black indicates basic smudges. When the battery viewing hole appears gray, it needs to be recharged. If a black screen appears, the battery needs to be replaced. Batteries should be stored in a clean, dry, and ventilated place. The temperature have to be between the 0 and 40 degree. It should be handled gently during transportation to prevent collisions and not to be turned over.
The battery terminal and power cord connector must be tightly connected to prevent fusing of the terminals on power-up. To prevent oxidative corrosion of the terminals, lubricants should be applied to the terminals. Keep the external terminals of the battery clean. Regularly check that the engine output voltage meets the standard voltage (14, 2 + 0.2) volts. When charging, make sure that the indoor air is not covered and away from open flames. Do not splash electrolytes on human bodies or clothing to avoid the risk of accidental injury. When ordinary battery electrolyte is insufficient, it must be added in time. During the filling process, the electrolyte temperature should not be higher than 45 degrees. The charging current must be halved or stopped to achieve cooling purposes, but the charging time must be extended. When charging is complete, cut off electricity before cutting off electricity from the poles to prevent fire or explosion caused by fire.
Engine cooling system maintenance. The coolant for the machine can be boiled with tap water or antifreeze. Before starting, first, you need to check the condition of the cooling water in the radiator whether it is full or not. Remove scale regularly from the cooling system to ensure surface heat transfer and heat dissipation. Always check the radiator cores for weeds, dust, oil, and other blockages.