3.3. Operation Operation NOTE For starting up the engine in cold weather, see chapter: "3.5. Cold weather operation" on page 3-83. Warming up the engine NOTE You must not accelerate the engine abruptly before the warm-up phase is finished. Do not let the engine run idle for longer than 20 minutes at its lower or top speed. If it is necessary to let the engine run idle for a longer time, you must load the engine briefly from time to time or let it run at medium speed. Do not immediately begin with work after starting the engine. Prior to operation, perform the following preparations and checks: 1.
Press down slightly the accelerator pedal and let the engine run without load at medium speed for approx. 5 minutes. 2. Proceed as follows in order to heat up the hydraulic oil at low ambient temperatures: Allow the engine to run consistently during the warm-up phase. For warming the hydraulic oil, reset the multi-function lever for the work hydraulic system in short intervals from position '0' (holding) into position 'E' (tip-in position). Then reset it to its '0' position. Make sure not to exceed the maximum time (10 seconds) permitted for the multi-function lever in the tip-in position. 3.
While the engine is warming up, observe all measuring instruments and warning lights and eliminate immediately any fault. 4. Let the engine run with lightweight load further until the engine coolant temperature indicator (1) lights up in the green range. 1 5. Ensure that the exhaust gas colour is normal and that the exhaust pipe produces neither abnormal noises nor vibra- tions. Eliminate possible defects. 3-46 WA100M-5 – VEAM280201