IT IS PROHIBITED TO START WITHOUT ADDING COOLING WATER. IF COOLING WATER IS NOT ADDED DURING START-UP AND IS ADDED AFTER THE DIESEL ENGINE IS STARTED, IT WILL CAUSE CRACKS IN THE ENGINE BODY AND CYLINDER HEAD DUE TO SUDDEN CONTACT WITH COLD WATER IN THE WATER TANK THAT HAS RISEN IN TEMPERATURE.DO NOT ADD ENGINE OIL FROM THE INTAKE PIPE. ADDING ENGINE OIL FROM THE INTAKE PIPE CAN CAUSE CARBON BUILDUP ON THE PISTON AND PISTON RINGS, REDUCING THEIR SERVICE LIFE.IT IS PROHIBITED TO REMOVE THE AIR FILTER AND START THE SUCTION PROCESS. REMOVING THE AIR FILTER AND STARTING THE SUCTION PROCESS WILL ALLOW UNCLEAN AIR TO ENTER MOVING PARTS SUCH AS CYLINDERS AND VALVES, EXACERBATING THEIR WEAR AND TEAR.IT IS PROHIBITED TO FORCIBLY START A DIESEL ENGINE WITHOUT PREHEATING USING OTHER POWER SOURCES. USING OTHER POWER SOURCES TO FORCIBLY START THE ENGINE WITHOUT PREHEATING CAN CAUSE DRY OR SEMI DRY FRICTION BETWEEN THE CRANKSHAFT AND THE BEARING, WHICH CAN EASILY LEAD TO THE CRANKSHAFT HOLDING THE BEARING.