2. Operation and Management Operation and Management Starting and Stopping of the Engine Preparing for Start starter motor until oil flows out. After completing Check the following before starting the engine for the the work, tighten the oil pipe joint again and start the engine. first time after purchase. 1. Before starting an engine, check the levels of After Starting the Engine fuel, coolant, and oil and replenish those fluids if 1. Do not rapidly raise the rpm while the engine and required. turbocharger do not rotate smoothly after starting the engine. Otherwise, it may increase the load 2. Check if engine oil level is between the upper and lower limit of the oil level gauge.
The upper upon the engine and burning may occur at the and lower limit of the oil level gauge indicate the positions that have not been sufficiently lubricated maximum and minimum of the engine oil level. yet. To prevent this, rotate the engine at idle after starting it to lubricate the turbocharger with oil. CAUTION 2. Oil, air, or gas leaks may lower the oil pressure. When replenishing engine oil, do not exceed the maximum on the oil level gauge. Too much oil may cause damage to the engine. Additionally, oil leaks may cause burning of bearings. As such, if oil, air, or gas leaks occur, check the leaking parts and solve the problem. 3.
Be careful not to mix foreign substances in fuel, During Operation engine oil, or coolant while adding the fluid, and keep the fluid clean while it is not in use. Use fuel, 1. Insufficient oil pressure may cause abnormal wear oil, and coolant recommended by Doosan. and burning of bearings and excessive oil Otherwise, critical damage to the engine may occur. pressure may cause leaks. 2. Continuing to operate the engine after noises or vibrations coming from the engine may lead to Starting the Engine Observe the following when starting the engine. serious engine damage. As such, if noises or vibrations come from the engine, slowly decrease 1.
For a cold start, start the engine after preheating the rpm to a stop the engine and examine the cause. it sufficiently through the glow plug. 2. Starting the engine too quickly leads to engine rotation without lubricating the supercharger and Stopping the Engine other engine parts, causing abnormal wear to or Do not suddenly stop the engine after it was operated burning of bearings. Therefore, start the engine under high loads for a long period.
If oil burns because of heat sent from the high-temperature with the starter motor to check raising of oil pressure (until the gradation of the oil pressure turbine blade to the bearing part, the bearing metal gauge mounted on the apparatus moves or the and rotating shaft may burn. As such, if the engine was operated under high loads for a long period, pressure indicator lamp is turned on). sufficiently rotate the engine at idle before stopping it. 3. If the engine was not used or kept cold for a long period of time, oil circulation will be poor.
If you replace oil, oil filter cartridge, or lubrication system parts or use an engine in cold areas, or the engine has been stopped for a long period, loosen the oil pipe joint at inlet of the supercharger and run the 2 - 3