INTRODUCTION WARNING WARNING Be careful of burns Be careful of exhaust fume poi- soning Do not touch the engine during or immedi- ately after operation Do not touch the engine during or immediately after operation to avoid risk of burns. To conduct maintenance and in- spection work, wait until the engine has cooled sufficiently, checking the temperature gauge. Operate engine in well-ventilated area If the engine is installed in an en- closed area and the exhaust gas is ducted outside, ensure that there is no exhaust gas leak from duct joints. Take care that the exhaust gas is not discharged toward plants or animals.
Exhaust gas from the engine contains carbon monox- ide and other harmful substances. Operating the en- gine in an ill-ventilated area can produce gas poisoning. Slowly and carefully open radiator cap Never attempt to open the radiator cap while the engine is running or immediately after the engine stops. Give a sufficient cooling time to the engine coolant before opening the cap. When opening the radiator cap, slowly turn the cap to release internal pressure. To prevent scalds with steam gushing out, wear thick rubber gloves or cover the cap with a cloth. Close the radiator cap tightly without fail.
The coolant is very hot and under pressure during en- gine running or just after the engine stops. If the radia- tor cap is not closed tightly, steam and hot coolant may gush out and can cause scalds. WARNING Protect ears from noises Wear ear plugs Always wear ear plugs when enter- ing the machine room (engine room). Combustion sound and me- chanical noise generated by the en- gine can cause hearing problems. Add coolant only after the coolant tempera- ture dropped Do not add coolant immediately after the engine stops. Wait until the coolant temperature lowers sufficiently to avoid a risk of burns.
Never remove heat shields The exhaust system, which becomes extremely hot while the engine is operating, is provided with various heat shields. Do not remove these heat shields. If any of these heat shields have been removed owing to un- avoidable circumstances during the work, be sure to re- store them after the work is completed. V