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User’s Handbook, TSL 4186E, Issue 2 3
4012/16 Diesel
Start-up
z When working on the engine always ensure that the battery has been disconnected, and that any other
means of accidental start-up has been disabled.
z Never start the engine with the governor linkage disconnected.
z Do not hold the stop lever in the run position when starting the engine.
z Always hold the stop lever in the stop position when cranking only.
Electrical equipment
z Always check that electrics are earthed to local safety standards.
z Always disconnect the electrical supply to the jacket water heater (if fitted) before working on the engine.
z Take care to prevent any danger of electric shock.
z Never re-adjust the settings of electronic equipment without reference to the Workshop Manual.
Freezing or heating components
z Always use heat resistant gloves and use the correct handling equipment.
Exhaust system
z Check the system for leaks.
z Ensure that the engine room is correctly ventilated.
z Check that all the guards are fitted.
z Check that the pipework allows the exhaust gas to escape upwards.
z Check that the pipework is supported.
Stopping the engine
1 Disengage the engine load.
2 Run the engine on NO LOAD for 5 to 7 minutes before stopping.
Note: This will allow the circulating lubricating oil to dissipate heat from the bearings, pistons, etc. It will also
allow the turbochargers, which run at a very high speed, to slow down while there is still oil flow through the
bearings.
Ensure that the engine is stopped before performing any of the following operations:
z Changing the lubricating oil.
z Filling or topping up the cooling system.
z Beginning any repair work on the engine.
z Adjusting belts (where fitted).
z Adjusting bridge pieces / valve clearance.
z Changing spark plugs.
z Changing air or oil filters.
z Tightening any fixing bolts.
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