Mitsubishi — Mitsubishi Diesel Engine Service Manual

SAFETY CAUTIONS Warning Risk of burn Warning Exhaust gas is Do not touch the engine while it is running or for a while after it is stopped Never touch any part of the engine while it is running or for a while after it is stopped. Otherwise, you may become burned. Use a coolant temperature gauge to confirm that the engine has sufficiently cooled down before performing any inspection/service. Be careful when opening/closing the radiator cap Never attempt to open the radiator cap while the engine is running and for a while after it is stopped. Stop the engine and wait until the coolant temperature has sufficiently dropped before opening the cap.

Slowly open the radiator cap to allow the internal pressure to escape. To prevent possible burn, wear thick rubber gloves or cover the cap with cloth to protect your hands from escaping vapor. Tighten the radiator cap firmly. Coolant is extremely hot while the engine is running or for a while after the engine is stopped. You may become burned by extremely hot vapor or coolant that will gush out if the radiator cap is opened. Replenish coolant only when the coolant in the system is cold Do not replenish coolant for a while after the engine is stopped. Replenish coolant when the coolant in the system is sufficiently cold. Otherwise, you may become burned.

Do not remove heat insulating material The exhaust system components become extremely hot and therefore are covered with heat insulating material. Never remove the material. If the material needs to be removed at all for inspection/service, be sure to install it again after the operation. poisonous Ensure good ventilation while the engine is running If the engine is installed inside a building and the exhaust gas is directed outside through a duct, regularly check the duct for any leakage through the joints etc. Do not run the engine in a building (warehouse, tunnel, etc.), confined space, or other poorly ventilated places if the engine is used for a portable generator.

If the engine needs to be run in a building at all, ensure to direct the exhaust gas outside and provide sufficient ventilation. Also, take care not to direct the exhaust gas towards nearby plants or animals, if any. Engine exhaust gas contains carbon monoxide and other substances that are harmful to humans. Running the engine in a poorly ventilated place can cause exhaust gas poisoning. Warning Hearing difficulty Wear ear protector Wear ear protector whenever entering the engine room. Otherwise, the combustion and mechanical noises may cause you to develop hearing difficulty. 0 - 4