14. COLD WEATHER OPERATION 14.2 PRECAUTIONS AFTER COMPLETION OF WORK To prevent mud, water, or the undercarriage from freezing and making it impossible for the machine to move on the following morning, observe the following precautions. Remove all the mud and water from the machine body. In particular, wipe the hydraulic cylinder rod clean to prevent damage to the seal caused by mud or dirt on the rod surface getting inside the seal together with drops of water. Park the machine on hard, dry ground. If this is impossible, park the machine on boards. The boards prevent the tracks from freezing to the ground, and allow the machine to be moved the next morning.
Open the drain valve and drain any water collected in the fuel system to prevent it from freezing. Fill the fuel tank to capacity. This minimizes moisture condensa- tion in the tank when the temperature drops. 14.3 AFTER COLD WEATHER When the season changes and the weather becomes warmer, do as follows. Replace all fuel and oil with fuel and oil of the specified viscosity. For details, see “20. RECOMMENDED FUEL, COOLANT, AND LUBRICANT”. 2-84