OPERATING THE MACHINE 20.10INSTRUCTIONS FOR WINTER OPERATION 20.10.1 BEFORE THE COLD SEASON Before the cold season begins, you should perform the following preparatory measures to ensure troublefree op- eration also in the winter months. The machine is provided with a aluminium radiator. Therefore, the cooling system must be set to -34.6°F (-37°C) for the whole year. Use oils with the prescribed viscosities which are suitable for the cold weather to be expected in your region (see chapter "22.4 Lubricants and Operating Agents"). Fill up with winter diesel fuel.
At low temperatures, paraffin deposits of diesel fuel may block the filters and lines (see chapter "22.4 Lubricants and Operating Agents"). If the injection system, the starter, the battery and the generator are in perfect condition, it is ensured that the engine can be easily started and that the machine can be operated troublefree even in extremely cold weather. Let these important components be checked at an authorised garage before the winter starts. Insufficient compression pressure impairs the start-up behaviour of the engine, especially at low temperatures. Let the compression pressure be measured at an authorised garage.
If the speed is continuously increased, the starter may remain switched on until the engine finally starts up. Let the engine warm up with increased idle speed for some minutes before starting to work. During the warm- up phase, operate the hydraulics devices several times without load. Add a standard antifreeze to the water in the windshield washer assy. If required, add 25 vol. % of alcohol (spir- it) to the water. 20.10.2 AFTER OPERATION Realise the following actions to make sure that the machine can be started the next time without problems: Remove mud and water from the car body. This prevents that sealings are damaged due to freezing. Park the machine on hard and dry ground.
If this is not possible, you must park the machine on wooden planks. The planks prevent that the wheels are freezing to the ground. Drain off collected water from the fuel system. The battery capacity drops clearly at low temperatures. Therefore, dismount the battery in frost periods and store it in a warm place. Re-install it the next morning, before starting to work. 20.10.3 AFTER THE COLD SEASON If the weather becomes warmer, you must fill up the prescribed fuel and use oils with prescribed viscosities (see table "22.4 Lubricants and Operating Agents").
20.11LONGER STANDSTILL PERIODS OF THE MACHINE 20.11.1 BEFORE THE STANDSTILL Perform the following actions, if the machine is to be taken out of service over a longer period of time: Clean the entire machine, including the engine room, and let it dry. If possible park the machine at a dry, roofed location. A supplementary cover with a canvas cover is recom- mended. If the machine must be parked outside, you need to put wooden planks on the ground on which the machine is to be parked and covered with a canvas cover. Fill up the fuel tank. Lubricate the machine and change the oils. Apply a thin grease film to the piston rods of the hydraulic cylinders.
Disconnect the negative terminals of the battery. Cover the battery or remove it and store filled up and com- pletely charged it in a dry room which is frost-free in winter. Check whether the coolant is set to a temperature of -34.6°F (-37° C). Refill antifreeze, if necessary. 103